Multi-strand energy storage cable stranding machine

Abstract

The invention discloses a multi-strand energy storage cable stranding machine, and relates to the field of cable production equipment, the multi-strand energy storage cable stranding machine comprises a bottom plate, a pay-off rack and a stranding cylinder, a mounting ring is rotatably arranged in the pay-off rack, a plurality of pay-off mechanisms are detachably mounted at one end of the mounting ring, and a limiting mechanism is fixedly arranged at the other end of the mounting ring; a plurality of strainers are detachably mounted in the limiting mechanism, and the pay-off mechanisms correspond to the strainers one to one. According to the invention, the tensioner is additionally arranged on each copper wire before twisting, the copper wire is pulled upwards by the tensioner, and the copper wire is in a tightened state when being twisted, and when the copper wire is located on the tensioner, the copper wire can pull the movable column and the connecting roller downwards, and when the copper wire is not straightened or broken, the copper wire can be pulled upwards by the tensioner. At the moment, the copper wire cannot provide downward pulling force for the tensioner, the movable column and the connecting roller can move upwards under the action of the spring, and the distance sensor detects the distance change and sends out a signal to indicate the situation that the wire is broken or is not straightened.

Description

Technical Field

[0001] The invention relates to the field of cable production equipment, in particular to a multi-strand energy storage cable twisting machine. Background Art

[0002] Energy storage cables refer to wires and cables specially used in energy storage systems. They are responsible for transmitting electrical energy and signals between battery modules, between battery clusters, between battery clusters and junction boxes, and between battery clusters and energy storage converters (PCS). The performance of energy storage cables directly affects the safety and efficiency of the energy storage system. As an important component of the energy storage system, they have broad application prospects and development space.

[0003] The processing of energy storage cables is divided into several steps, including wire drawing and twisting, insulation extrusion, cabling and shielding, and outer sheath extrusion. Wire drawing and twisting are to draw the conductor material into filaments of required specifications through a wire drawing machine, and then twist multiple filaments into conductors through a stranding machine to improve the strength and conductivity of the conductor.

[0004] However, during the stranding process, the copper wire may not be straightened or broken. The unstraightened copper wire will affect the quality of the conductor after twisting, while the broken copper wire will lead to inconsistent number of conductor strands after the stranding is completed.

[0005] Existing copper wires are often sampled and tested after they are twisted. However, in this case, the copper wires have already been twisted. Even if it is detected that the copper wires are not straightened or broken, it is difficult to recover the losses. Summary of the invention

[0006] Based on this, the purpose of the present invention is to provide a multi-strand energy storage cable twisting machine to solve the technical problems of unstraightened and untimely wire break detection in the existing copper wire process.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-strand energy storage cable twisting machine, comprising a base plate, a pay-off frame and a stranding drum, wherein a mounting ring is rotatably arranged inside the pay-off frame, and a plurality of pay-off mechanisms are detachably mounted on one end of the mounting ring, and a limiting mechanism is fixedly arranged on the other end of the mounting ring, and a plurality of tensioners are detachably mounted inside the limiting mechanism, and the pay-off mechanisms correspond to the tensioners one by one, and the tensioner comprises a mounting block, a movable column, a connecting roller and a spring, wherein the mounting block is arranged inside the limiting mechanism, and a group of movable columns are slidingly arranged inside the mounting block, and one end of the group of movable columns is connected by a connecting roller, and a spring is arranged inside the mounting block, and one end of the spring is connected to a fixing block on the outer wall of the movable column, and a distance sensor is installed between the top of the fixing block and the inner wall of the mounting block.

[0008] The present invention is further configured such that the wire-releasing mechanism includes a positioning block, a mounting disk and a wire roller, a retaining ring is fixedly provided at one end of the mounting ring, the positioning block slides on the retaining ring for fixed installation, a group of mounting disks are provided at the bottom of the positioning block, a wire roller is detachably provided inside the mounting disks, and a guide block is installed between opposite surfaces of the mounting disks.

[0009] The present invention is further configured such that a plug post is slidably provided inside the wire roller, a slot matching the shape and size of the plug post is opened on one side of the mounting disk, and the wire roller is detachably arranged inside the mounting disk via the plug post.

[0010] The present invention is further configured such that the limiting mechanism includes a first fixing ring and a second fixing ring, the first fixing ring and the second fixing ring are both fixedly mounted on one end of the mounting ring, and a through groove is formed between the first fixing ring, the second fixing ring and the mounting ring.

[0011] The present invention is further configured such that a slide groove is provided on the opposite surfaces of the first fixing ring and the second fixing ring, a mounting groove is provided on the outer wall of the second fixing ring, and the mounting block slides inside the through groove for fixed installation.

[0012] The present invention is further configured such that a motor is installed on the top of the base plate, a gear is installed on the output end of the motor, the gear is meshed with a gear ring, the gear ring is installed on the outer wall of the mounting ring, and both the gear and the gear ring are located inside the pay-off frame.

[0013] The present invention is further configured such that a mounting seat is fixedly provided on the top of the base plate, a group of fixed columns are fixedly provided on the top of the mounting seat, a group of movable blocks are movably provided on the outer walls of the fixed columns, a double-axis cylinder is installed on the outer side of the movable block, and the movements of the double-axis cylinder are respectively connected to the outer walls of the movable blocks.

[0014] The present invention is further configured such that a conductive slip ring is installed between the pay-off frame and the mounting ring.

[0015] The present invention is further configured such that a through hole is opened on the surface of the guide block, and an inner wall of the through hole is coated with a Teflon coating.

[0016] The present invention is further configured such that the positioning block and the mounting block are both fixedly mounted by bolts.

[0017] In summary, the present invention mainly has the following beneficial effects: the present invention installs a tensioner on each copper wire before twisting, and the tensioner pulls the copper wire upward. Since the copper wire is in a taut state when twisted and is located on the tensioner, the copper wire will pull the movable column and the connecting roller downward. When the copper wire is not straightened or broken, the copper wire will not provide downward pulling force for the tensioner, and the movable column and the connecting roller will move upward under the action of the spring. The distance sensor detects the distance change and sends a signal indicating that the wire is broken or not straightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the first viewing angle of the stereogram of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the stereogram of the present invention;

[0020] Figure 3 It is a schematic diagram of the installation state of the limit mechanism and the tensioner of the present invention;

[0021] Figure 4 This is a schematic diagram of the external structure of the mounting ring of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the tensioner of the present invention;

[0023] Figure 6 is a cross-sectional view of the internal structure of the tensioner of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the wire-releasing mechanism of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the emergency locking mechanism of the present invention;

[0026] Fig. 9 For the present invention Figure 3 A magnified view of the structure at A.

[0027] In the figure: 1. bottom plate; 2. wire pay-off frame; 3. mounting ring; 4. positioning block; 5. mounting plate; 6. wire roller; 7. plug-in column; 8. guide block; 9. first fixed ring; 10. second fixed ring; 11. mounting block; 12. movable column; 13. connecting roller; 14. spring; 15. fixed plate; 16. motor; 17. gear; 18. gear ring; 19. wire reel; 20. mounting seat; 21. fixed column; 22. movable block; 23. double-axis cylinder. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] A multi-strand energy storage cable twisting machine, such as Figure 1-9 As shown, it includes a base plate 1, a pay-off frame 2 and a twisting drum 19. The pay-off frame 2 and the twisting drum 19 are installed on the top of the base plate 1. Multiple copper wires inside the pay-off frame 2 are paid out, and after being twisted by the twisting drum 19, they become a conductor and are reeled up by the reeling mechanism.

[0030] The pay-off frame 2 is provided with a mounting ring 3 for rotation inside, and one end of the mounting ring 3 is detachably provided with a plurality of pay-off mechanisms, which are used to install the copper wire winding roller, including a positioning block 4, a mounting disk 5 and a wire roller 6. A clamping ring is fixedly provided at one end of the mounting ring 3, and the positioning block 4 slides on the clamping ring for fixed installation. A group of mounting disks 5 are provided at the bottom of the positioning block 4, and a wire roller 6 is detachably provided inside the mounting disk 5. A guide block 8 is installed between the opposite surfaces of the mounting disk 5. Since the types of conductors required for different cables are different, the number of strands of copper wire is also different, so several pay-off mechanisms can be installed according to the number of strands of copper wire required;

[0031] The wire-releasing mechanism is installed by sliding the positioning block 4 on the clamping ring. After determining the position on the clamping ring, the positioning block 4 and the mounting ring 3 are fixedly installed by bolts. A plug post 7 is slidingly provided inside the wire roller 6. A slot that matches the shape and size of the plug post 7 is opened on one side of the mounting disk 5. The wire roller 6 is detachably arranged inside the mounting disk 5 through the plug post 7. When it is necessary to replace the internal wire roller 6, the plug post 7 is pulled out, and the wire roller 6 and the mounting disk 5 are unlocked. At this time, the wire roller 6 can be replaced. After the replacement, the wire roller 6 is placed inside the mounting disk 5, and the plug post 7 is inserted to fix it. The copper wire on the wire roller 6 passes through the through hole opened on the surface of the guide block 8. The inner wall of the through hole is coated with Teflon coating. The Teflon coating can effectively reduce the friction between the copper wire and the through hole.

[0032] A limit mechanism is fixedly provided at the other end of the mounting ring 3, and a plurality of tensioners are detachably installed inside the limit mechanism, and the wire-releasing mechanism corresponds one to one with the tensioner. The tensioners corresponding one to one with the copper wire can effectively monitor the unstraightening and wire breakage of the copper wire, and the stranding process can be stopped in time if any problem is found.

[0033] The tensioner includes a mounting block 11, a movable column 12, a connecting roller 13 and a spring 14. The mounting block 11 is arranged inside the limiting mechanism. A group of movable columns 12 are slidably arranged inside the mounting block 11. One end of a group of movable columns 12 is connected through a connecting roller 13. A spring 14 is arranged inside the mounting block 11. One end of the spring 14 is connected to the outer wall fixing block of the movable column 12. A distance sensor is installed between the top of the fixing block and the inner wall of the mounting block 11. The copper wire passes through the guide block 8 and enters the U-shaped ring formed by the movable column 12 and the connecting roller 13. When the copper wire is in a taut state when twisted, when the copper wire is placed on the connecting roller 13, a downward pressure will be applied to the connecting roller 13 and the movable column 12. At this time, the fixed block will squeeze the spring 14. When the copper wire is broken or in an unstraightened state, the downward pressure on the connecting roller 13 and the movable column 12 disappears, and the spring 14 pushes the fixed block and the movable column 12 upward. At this time, the distance sensor detects that the distance change is large and sends a signal to the controller. After analysis, the controller indicates that the copper wire has been broken or is in an unstraightened state. At this time, the staff can perform corresponding inspection work;

[0034] In addition, the distance sensor will only send out a signal indicating that there is a problem with the copper wire when it detects a large change in distance. Therefore, the jitter of the copper wire during normal movement will not affect the detection.

[0035] A motor 16 is installed on the top of the base plate 1, and a gear 17 is installed on the output end of the motor 16. The gear 17 is meshed with a ring gear 18. The ring gear 18 is installed on the outer wall of the mounting ring 3, and the gear 17 and the ring gear 18 are both located inside the pay-off frame 2. Start the motor 16, the motor 16 drives the gear 17 to rotate, and then drives the ring gear 18 to rotate synchronously. At this time, the mounting ring 3 rotates to realize the stranding of the copper wire.

[0036] The tensioner is installed inside the limiting mechanism, and the limiting mechanism includes a first fixing ring 9 and a second fixing ring 10. The first fixing ring 9 and the second fixing ring 10 are both fixedly installed at one end of the mounting ring 3. A through groove is formed between the first fixing ring 9, the second fixing ring 10 and the mounting ring 3. A sliding groove is provided on the opposite surfaces of the first fixing ring 9 and the second fixing ring 10. An installation groove is provided on the outer wall of the second fixing ring 10. The mounting block 11 slides inside the through groove for fixed installation. A positioning groove is provided on the outer wall of the second fixing ring 10. When the tensioner needs to be installed, the mounting block 11 is inserted from the positioning groove into the through groove, and moved along the sliding groove to a position corresponding to the wire-releasing mechanism. After the position is determined, the bolt is passed through the mounting groove to fix the mounting block 11. After the fixation is completed, the fixing plate 15 on the inner wall of the positioning groove is fixed by bolts;

[0037] The one-to-one correspondence between the pay-off mechanism and the tensioner can effectively monitor each strand of copper wire. The copper wire leaving the tensioner enters the stranding drum 19 for stranding. An emergency locking mechanism is installed at one end of the stranding drum 19. The emergency locking mechanism includes a base plate 1. A mounting seat 20 is fixedly provided on the top of the base plate 1. A group of fixed columns 21 are fixedly provided on the top of the mounting seat 20. A group of movable blocks 22 are movably provided on the outer wall of the fixed column 21. A double-axis cylinder 23 is installed on the outer side of the movable block 22. The movement of the double-axis cylinder 23 is respectively connected to the outer wall of the movable block 22. When the tensioner detects a problem with the copper wire, the controller sends a signal to start the double-axis cylinder 23. The double-axis cylinder 23 controls the movable block 22 to move in the same direction, squeezes the twisted copper wire, and makes it unable to move, and turns it into a shutdown state to facilitate inspection by the staff.

[0038] A conductive slip ring is installed between the pay-off frame 2 and the mounting ring 3, and a conductive slip ring is also installed between the mounting block 11 and the mounting ring 3, so that power can be supplied during rotation, so that the distance sensor can work normally.

[0039] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A multi-strand energy storage cable twisting machine, comprising a bottom plate (1), a pay-off frame (2) and a twisting drum (19), characterized in that: The wire-releasing frame (2) is provided with a mounting ring (3) for rotation inside. One end of the mounting ring (3) is detachably provided with a plurality of wire-releasing mechanisms. The other end of the mounting ring (3) is fixedly provided with a limiting mechanism. A plurality of tensioners are detachably provided inside the limiting mechanism, and the wire-releasing mechanisms correspond to the tensioners one by one. The tensioner comprises a mounting block (11), a movable column (12), a connecting roller (13) and a spring (14). The mounting block (11) is provided inside the limiting mechanism. A group of movable columns (12) are slidably provided inside the mounting block (11). One end of the group of movable columns (12) are connected via a connecting roller (13). A spring (14) is provided inside the mounting block (11). One end of the spring (14) is connected to a fixed block on the outer wall of the movable column (12). A distance sensor is installed between the top of the fixed block and the inner wall of the mounting block (11).

2. A multi-strand energy storage cable twisting machine according to claim 1, characterized in that: The wire-releasing mechanism comprises a positioning block (4), a mounting disk (5) and a wire roller (6); a clamping ring is fixedly arranged at one end of the mounting ring (3); the positioning block (4) slides on the clamping ring for fixed installation; a group of mounting disks (5) are arranged at the bottom of the positioning block (4); a wire roller (6) is detachably arranged inside the mounting disk (5); and a guide block (8) is installed between opposite surfaces of the mounting disk (5).

3. A multi-strand energy storage cable twisting machine according to claim 2, characterized in that: The wire roller (6) is slidably provided with an insertion post (7), and a slot matching the shape and size of the insertion post (7) is provided on one side of the installation disk (5). The wire roller (6) is detachably arranged inside the installation disk (5) via the insertion post (7).

4. A multi-strand energy storage cable twisting machine according to claim 1, characterized in that: The limiting mechanism comprises a first fixing ring (9) and a second fixing ring (10), wherein the first fixing ring (9) and the second fixing ring (10) are both fixedly mounted on one end of the mounting ring (3), and a through groove is formed between the first fixing ring (9), the second fixing ring (10) and the mounting ring (3).

5. A multi-strand energy storage cable twisting machine according to claim 4, characterized in that: The opposing surfaces of the first fixing ring (9) and the second fixing ring (10) are provided with sliding grooves, the outer wall of the second fixing ring (10) is provided with a mounting groove, and the mounting block (11) slides inside the through groove for fixed installation.

6. A multi-strand energy storage cable twisting machine according to claim 1, characterized in that: A motor (16) is installed on the top of the base plate (1), a gear (17) is installed on the output end of the motor (16), the gear (17) is meshed with a gear ring (18), the gear ring (18) is installed on the outer wall of the mounting ring (3), and the gear (17) and the gear ring (18) are both located inside the pay-off frame (2).

7. The multi-strand energy storage cable twisting machine according to claim 1, characterized in that: A mounting seat (20) is fixedly arranged on the top of the base plate (1), a group of fixed columns (21) are fixedly arranged on the top of the mounting seat (20), a group of movable blocks (22) are movably arranged on the outer walls of the fixed columns (21), a double-axis cylinder (23) is installed on the outer side of the movable block (22), and the movement of the double-axis cylinder (23) is respectively connected to the outer wall of the movable block (22).

8. The multi-strand energy storage cable twisting machine according to claim 1, characterized in that: A conductive slip ring is installed between the pay-off frame (2) and the mounting ring (3).

9. The multi-strand energy storage cable twisting machine according to claim 2, characterized in that: A through hole is provided on the surface of the guide block (8), and the inner wall of the through hole is coated with a Teflon coating.

10. The multi-strand energy storage cable twisting machine according to claim 2, characterized in that: The positioning block (4) and the mounting block (11) are both fixedly mounted by means of bolts.

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