Multi-taping-head taping machine

Abstract

The utility model provides a taping machine with multiple taping heads, which comprises a machine frame, a coil clamping part and a taping head assembly, the machine frame comprises a seat body and a cross beam, and the cross beam is supported above the seat body; the coil clamping part is installed on the base body, the wrapping head assembly is installed on the cross beam, the wrapping head assembly is suspended above the coil clamping part, and the wrapping head assembly can move along the cross beam; one end of the cross beam is also provided with a taping head library, and taping heads of different specifications are placed in the taping head library; a quick-change connector is arranged on the taping head assembly and can be quickly connected with taping heads in the taping head library; the taping head library comprises a base, a towing bracket and a driving device, the towing bracket and the driving device are installed on the base, the taping heads are placed on the towing bracket, and the driving device drives the towing bracket to move towards the taping head assembly and enables the taping heads to stretch out of the base to enter a gap between the cross beam and the base body. Therefore, the wrapping head of the wrapping head assembly can be replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of insulation wrapping technology for motor coils, and more specifically, to a multi-head wrapping machine. Background Technology

[0002] The motor winding, composed of high-purity conductive metal coils, is a key component of the motor. The metal coils are wound into a shuttle-shaped coil by a winding machine, and then, after insulation and expansion processes, are embedded in the motor stator. The shuttle-shaped coil consists of two opposing straight edges and two opposing noses. A fully automatic wrapping machine can automatically wrap the straight edges and noses of the shuttle-shaped coil with insulation throughout the entire process. The wrapping machine is equipped with wrapping heads. Different motors use coils of different sizes. The span of the shuttle-shaped coil is generally in the range of 80–250 mm. Different spans require different wrapping heads: coils with a span of 80–120 mm use an 80 wrapping head, those with a span of 120–170 mm use a 120 wrapping head, and those with a span of 170–250 mm use a 160 wrapping head. In other words, generally, there are three types of wrapping heads. Existing fully automatic wrapping machines only have one wrapping head; when wrapping a coil of a different size, the wrapping head needs to be changed manually. Utility Model Content

[0003] This utility model combines the structural features of existing fully automatic tape wrapping machines and, based on the three commonly used types of tape wrapping heads, provides a multi-head tape wrapping machine capable of wrapping any type of coil within a span range of 80-250mm.

[0004] A multi-head tape wrapping machine includes a frame, a coil clamping part, and a tape head assembly. The frame includes a base and a crossbeam, with the crossbeam supported above the base. The coil clamping part is mounted on the base, and the tape head assembly is mounted on the crossbeam, suspended above the coil clamping part. The tape head assembly can move along the crossbeam. A tape head magazine is also provided at one end of the crossbeam, containing tape heads of different specifications. The tape head assembly is provided with a quick-change connector, which can quickly connect to the tape heads in the tape head magazine. The tape head magazine includes a base, a bracket mounted on the base, and a drive device. The tape heads are placed on the bracket, and the drive device drives the bracket to move towards the tape head assembly, causing the tape heads to extend from the base into the gap between the crossbeam and the base, facilitating tape head replacement.

[0005] Furthermore, the base includes a bracket and a platform, with the platform mounted on the bracket; the platform is provided with a guide rail extending along the length of the crossbeam, the guide rail extending to the edge of the platform; and the bottom of the carriage is equipped with a slider adapted to the guide rail.

[0006] Furthermore, the height of the carriage decreases progressively from the direction away from the strap head assembly towards the direction closer to the strap head assembly, and the carriage is provided with crisscrossing reinforcing ribs. These reinforcing ribs reduce the impact of the strap head's weight on the carriage's deflection when the carriage slides out.

[0007] Furthermore, the driving device includes a motor, a reducer, a gear, and a rack. The motor and reducer are mounted on the platform. The gear is connected to the output end of the reducer. The rack is fixed to the bottom of the trailer. The gear and rack mesh to drive the trailer to move along the guide rail.

[0008] Furthermore, the strap heads on the carriage are placed at one end of the carriage near the frame, and the strap heads are arranged sequentially along a direction perpendicular to the crossbeam.

[0009] Furthermore, two positioning pins are provided at each strap head placement position on the end of the trolley near the frame for easy positioning.

[0010] Furthermore, it also includes a protective cover covering the platform, the platform being square and the protective cover being cubic, the trolley being located within the protective cover, and the side of the protective cover facing the strap head not having a barrier.

[0011] Furthermore, the different specifications of the strapping heads refer to three different specifications of strapping heads, namely 80 strapping heads, 120 strapping heads, and 160 strapping heads.

[0012] Furthermore, the 80-pack tape head reel structure includes an angle block, a reel seat, and a reel core. The angle block is fixed to the tape head, the reel seat is fixed to the angle block, and the insulating tape reel is mounted on the reel core. The reel core comprises a fixed portion and a movable portion. The fixed portion passes sequentially through the movable portion and the reel seat before being fixed to the angle block. The movable portion is movably connected to the fixed portion, and the insulating tape reel is mounted on the movable portion. One end of the movable portion facing the reel seat is a contact end, and a friction plate is provided between the contact end and the reel seat. One end of the reel seat has a friction plate, and the opposite end has a locking structure that applies pressure to the reel seat along the axial direction. The movable portion rotates with the rotation of the reel, and the contact end of the movable portion and the friction plate generate friction through the pressure transmitted by the locking structure, providing the tension required for insulating wrapping.

[0013] Furthermore, the locking structure includes a washer and a spring; the fixing part is fixed to the angle block by a screw, the screw passing through the angle block and connecting to the fixing part; the washer is disposed in the angle block, and the spring is disposed between the washer and the disc seat; the screw includes a head, and the center of the washer has a hole that matches the head. When the screw is tightened, the head presses the washer, and the spring is compressed between the washer and the disc seat. The contact end of the movable part rubs against the friction plate through the elastic force provided by the spring, thereby providing the tension required for insulating wrapping.

[0014] Furthermore, one end of the disc seat is fixed to the angle block, and the other end has an annular groove. The friction plate is installed at the bottom of the annular groove, and the contact end of the movable part extends into the annular groove to contact the friction plate.

[0015] Furthermore, the movable part and the fixed part are movably connected by a bearing. The movable part has a hollow structure, and the bearing is located between the movable part and the fixed part.

[0016] Furthermore, it also includes a bearing housing cover, wherein the bearing is mounted on the bearing housing, and the movable part is fixed to the bearing housing cover as a whole; the bearing housing cover is located at one end of the fixed part, and the fixed part has an outwardly extending annular protrusion at the end near the bearing housing cover, and the bearing housing cover is provided with an annular groove; the annular protrusion and the annular groove are clearance-fitted, and the annular protrusion is located between the bearing and the annular groove.

[0017] Furthermore, the bearing housing cover and the movable part are fixed together as a whole by welding.

[0018] Furthermore, the bearing housing cover is located in the hollow structure of the movable part, and the upper surface of the bearing housing cover is flush with the upper surface of the movable part.

[0019] Furthermore, it also includes a reel cover assembly, which is fixedly connected to the fixing part by screws. The screws and the reel cover assembly are integrated by an elastic retaining ring and can be rotated independently to connect with the fixing part, thereby quickly fixing the insulating tape reel.

[0020] The present invention has the following advantages over the prior art:

[0021] This utility model provides a multi-head wrapping machine. Based on the structure of a downward-moving wrapping machine, it adds a wrapping head library and a quick-change connector. The wrapping head library can store (including used wrapping heads) three wrapping heads with different spans (80, 120, and 160 mm wrapping heads). Different span wrapping heads can be automatically changed via a program to accommodate wrapping of coil insulation tape with different spans. (80 mm wrapping head: suitable for spans of 80-120 mm; 120 mm wrapping head: suitable for spans of 120-170 mm; 160 mm wrapping head: suitable for spans of 170-250 mm). Specifically, the carriage can hold three wrapping heads. The carriage is driven by a servo motor and can perform both extension and retraction actions, with accurate and reliable positioning. When extended, the wrapping head is away from the protective cover. The wrapping head assembly has a built-in quick-change connector, which connects automatically when the carriage extends, completing the automatic replacement of different wrapping heads. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0023] Figure 1 This is a structural diagram of a multi-pack tape wrapping machine;

[0024] Figure 2 This is a diagram of the package header library structure;

[0025] Figure 3 This is a structural diagram of the packing tape head storage area (with packing tape heads placed there);

[0026] Figure 4 This is a side view of the package header library structure.

[0027] Figure 5 This is a schematic diagram (sectional front view) of a reel structure used for insulating wrapping of small-span coils.

[0028] Figure 6 This is a schematic diagram (sectional perspective view) of a reel structure used for insulating wrapping of small-span coils.

[0029] Figure 7 This is a three-dimensional schematic diagram of a reel structure used for insulating and wrapping small-span coils.

[0030] A-Bag head holder, 1-Base, 2-Crossbeam, 3-Coil clamping part, 4-Bag head assembly, 5-Base, 5a-Bracket, 5b-Platform, 6-Tractor, 7-Drive device, 8-Protective cover, 9-Positioning pin, 10-80-Bag head, 11-120-Bag head, 12-160-Bag head, 13-Protrusion, 14-Guide rail, 15-Angle block, 16-Bag disc holder, 17-Bag disc, 18-Fixed part, 19-Moving part, 20-Friction plate, 21-Screw, 22-Washer, 23-Spring, 24-Head, 25-Bearing, 26-Bearing seat cover, 27-Bag disc cover assembly. Detailed Implementation

[0031] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims. Example

[0032] A multi-pack tape wrapping machine, such as Figure 1 As shown, the device includes a frame, a coil clamping part 3, and a tape head assembly 4. The frame includes a base 1 and a crossbeam 2, with the crossbeam 2 supporting the base 1. The coil clamping part 3 is mounted on the base 1, and the tape head assembly 4 is mounted on the crossbeam 2, suspended above the coil clamping part 3. The tape head assembly 4 can move along the crossbeam 2. A tape head magazine is also provided at one end of the crossbeam 2, containing tape heads of different specifications. The tape head assembly 4 is equipped with a quick-connect coupling, which can quickly connect to the tape heads in the tape head magazine. The tape head magazine includes a base 5, a bracket 6 mounted on the base 5, and a drive device 7. The tape head is placed on the bracket 6, and the drive device 7 drives the bracket 6 to move towards the tape head assembly 4, causing the tape head to extend from the base 5 into the gap between the crossbeam 2 and the base 1, facilitating the replacement of the tape head in the tape head assembly 4.

[0033] like Figure 1 The multi-head tape wrapping machine shown is a six-axis tape wrapping machine. The tape head assembly 4, suspended on the crossbeam 2, can move along the X, Y, and Z directions. The tape head can also rotate 360 ​​degrees in the Z, Y, and Z axes. During tape wrapping, the tape wrapping machine assembly can automatically move to the wrapping position. This application adds a tape head magazine to the existing tape wrapping machine structure and installs a quick-change connector on the tape head assembly 4. The tape head magazine includes a carriage 6 for holding tape heads. A drive device 7 drives the carriage 6 to extend and retract, allowing the tape heads on the carriage 6 to reach the position accessible to the tape head assembly 4. The control system controls the tape head assembly 4 to move to the wrapping position, and the quick-change connector quickly replaces the tape head. The multi-head tape wrapping machine described in this application does not require significant structural changes to the original tape wrapping machine. The tape head magazine does not interfere with the original equipment structure, and the tape head assembly 4 only requires the addition of a quick-change connector. Figure 1As shown, the tape head holder is located at one end of the crossbeam 2 and on one side of the frame. The frame base 1 is supported by columns, with a large gap between the two columns. The tape head holder is positioned in this location, allowing the support frame 6 to extend through this gap into the area below the crossbeam 2 and within reach of the tape head assembly 4. It is conceivable that the width of the support frame 6 is smaller than the width of this gap. The multi-tape head tape wrapping machine described in this embodiment is actually a three-tape head tape wrapping machine.

[0034] like Figure 2 As shown, the base 5 includes a bracket 5a and a platform 5b, with the platform 5b mounted on the bracket 5a; a guide rail 14 extending along the length of the crossbeam 2 is provided on the platform 5b, extending to the edge of the platform 5b; a slider adapted to the guide rail 14 is installed at the bottom of the bracket 6. Figure 3 As shown, the platform 5b is square, and the trailer 6 is also a square slightly smaller than the platform 5b, which facilitates the placement of the protective cover 8. The protective cover 8 is cubic, and the trailer 6 is located inside the protective cover 8. The side of the protective cover 8 facing the bag strap head is not equipped with a barrier.

[0035] The height of the support bracket 6 decreases progressively from the direction away from the strap head assembly 4 towards the direction closer to the strap head assembly 4, and the support bracket 6 is provided with crisscrossing reinforcing ribs. The reinforcing ribs on the support bracket 6 reduce the influence of the weight of the strap head on the deflection of the support bracket 6 when it slides out. In this embodiment, as... Figure 2 As shown, the trailer 6 includes side and rear baffles. Two longitudinal reinforcing ribs are arranged parallel to each other between the side baffles. The side baffles and the two longitudinal reinforcing ribs form three compartments, each holding one strap end. The different specifications of the strap ends refer to three different specifications: 80 strap end 10, 120 strap end 11, and 160 strap end 12, with each type of strap end placed in a separate compartment. The longitudinal reinforcing ribs not only serve as reinforcement but also as dividers. Two positioning pins 9 are provided at each compartment and at each strap end placement position for easy positioning. To facilitate identification, the spacing between each pair of positioning pins 9 is different.

[0036] like Figure 3 As shown, the strap heads on the carriage 6 are placed at one end of the carriage 6 near the frame, and the strap heads are arranged sequentially along a direction perpendicular to the crossbeam 2.

[0037] The drive device 7 includes a motor, a reducer, a gear, and a rack. The motor and reducer are mounted on the platform 5b. The gear is connected to the output end of the reducer. The rack is fixed to the bottom of the carriage 6. The gear and rack mesh to drive the carriage 6 to move along the guide rail 14.

[0038] like Figure 2As shown, a protrusion 13 is also provided at the end of platform 5b near the frame. The width of the protrusion 13 is smaller than the width of platform 5b. This arrangement facilitates the cooperation between the tape head storage and the frame, and makes it easier to position the tape head storage.

[0039] The multi-span wrapping machine described in this application has a wrapping head library that can store (including used wrapping heads) three wrapping heads with different spans (80, 120, and 160 wrapping heads 12). The machine can automatically change wrapping heads with different spans to accommodate different spans of coil insulation tape. (80 wrapping head 10: suitable for spans of 80-120 mm; 120 wrapping head 11: suitable for spans of 120-170 mm; 160 wrapping head 12: suitable for spans of 170-250 mm). Specifically, the carriage 6 can hold three wrapping heads. The carriage 6, driven by a servo motor, can perform both extension and retraction actions, ensuring accurate and reliable positioning. When extended, the wrapping head moves away from the protective cover 8. The wrapping head assembly 4 has a built-in quick-change connector, which connects automatically when the carriage 6 extends, allowing for automatic replacement of different wrapping heads.

[0040] The tape head storage contains 80 tape heads for wrapping coils with small spans. Each tape head includes a tape reel structure, such as... Figure 5 As shown, the reel structure includes an angle block 15, a reel seat 16, and a reel core. The angle block 15 is fixed to the tape head, and the reel seat 16 is fixed to the angle block 15. The insulating tape reel 17 is mounted on the reel core. The reel core includes a fixed part 18 and a movable part 19. The fixed part 18 passes through the movable part 19 and the reel seat 16 in sequence before being fixed to the angle block 15. The movable part 19 is movably connected to the fixed part 18, and the insulating tape reel 17 is mounted on the movable part 19. One end of the movable part 19 facing the reel seat 16 is a contact end, and a friction plate 20 is provided between the contact end and the reel seat 16. One end of the reel seat 16 is provided with a friction plate, and the opposite end is provided with a locking structure that applies pressure to the reel seat along the axial direction. The movable part rotates with the rotation of the reel, and the contact end of the movable part and the friction plate generate friction through the pressure transmitted by the locking structure, thereby providing the tension required for insulation wrapping.

[0041] This invention simplifies the reel structure of small-span coils because the tension variation range is small when the small-span coil is wound. This application cleverly uses a friction plate 20, which is placed between the movable part 19 and the reel seat 16. The tension is provided by the torque generated by the friction between the contact end of the movable part 19 and the friction plate 20, without the need for a complex tension control structure to maintain constant tension during wrapping.

[0042] like Figure 6As shown, the fixing part 18 is fixed to the reel seat 16 by a screw 21, which passes through the reel seat 16 and connects to the fixing part 18. A washer 22 is also provided in the reel seat 16, and a spring 23 is provided between the washer 22 and the reel seat 16. The screw 21 includes a head 24, and the washer 22 has a tapered hole in its center that matches the screw 21. When the screw 21 is tightened, it presses the washer 22, and the spring 23 is compressed between the washer 22 and the reel seat 16. Figure 6 As shown, one end of the washer 22 has a groove, and the spring 23 is located in the groove. When the spring 23 is relaxed, its height is greater than the depth of the groove. The other end of the washer 22 has a hole, through which the screw 21 passes and connects with the fixing part 18. In this embodiment, the end of the screw 21 is frustoconical, therefore, the hole in the washer 22 is also frustoconical. When the screw 21 is tightened, the spring 23 is compressed, thereby adjusting the friction between the contact end and the friction plate 20, and thus adjusting the tension of the strap.

[0043] like Figure 6 As shown, the disc base 16 is fixed to the angle block 15 on one side, and has an annular groove in the center of the other side. The friction plate 20 is installed at the bottom of the annular groove, and the contact end of the movable part 19 extends into the annular groove to contact the friction plate 20. Figure 4 As can be seen, the contact end of the movable part 19 is actually an annular protrusion, which extends into the annular groove of the disc seat 16 and contacts the friction plate 20. Figure 5 As shown, to prevent interference, the outer diameter of the movable part 19 must be larger than the outer diameter of the annular protrusion.

[0044] The fixed part 18 of this application is the rotating shaft of the insulating tape reel 17 and the movable part 19. The movable part 19 and the fixed part 18 are movably connected by a bearing 25. The movable part 19 has a hollow structure, and the bearing 25 is located between the movable part 19 and the fixed part 18.

[0045] It also includes a bearing housing cover 26, on which the bearing 25 is mounted. The movable part 19 and the bearing housing cover 26 are fixed together by welding. The bearing housing cover 26 is located at one end of the fixed part 18. The fixed part 18 has an outwardly extending annular protrusion at the end near the bearing housing cover 26. The bearing housing cover 26 is provided with an annular groove. The annular protrusion and the annular groove are clearance-fitted, and the annular protrusion is located between the bearing 25 and the annular groove.

[0046] In this application, the bearing 25 is mounted on a bearing housing, which includes a bearing housing cover 26. A movable portion 19 is welded to the bearing housing cover 26 as a single unit, i.e., connected to the bearing housing as a whole. The bearing housing is located between the movable portion 19 and the fixed portion 18, and the bearing housing cover 26 rotates with the movable portion 19. The fixed portion 18 is snapped between the bearing 25 and the bearing housing cover 26. Therefore, the movable portion 19, the bearing housing cover 26, the bearing 25, and the fixed portion 18 form a single unit (a novel disc-core assembly), which is installed as a single part during assembly. Figure 6 As shown, the annular protrusion is located in the annular groove and above the bearing 25. The bearing 25 has a limiting effect on the fixed part 18. When it is a whole part, the fixed part 18 will not fall out of the whole part. The fixed part 18 is engaged between the bearing 25 and the bearing housing cover 26.

[0047] The bearing housing cover 26 is located in the hollow structure of the movable part 19, and the upper surface of the bearing housing cover 26 is flush with the upper surface of the movable part 19.

[0048] It also includes a disc cover assembly 27, which is fixedly connected to the fixing part 18 by screws 21. The screws and the disc cover assembly 27 are integrated by an elastic retaining ring and can be rotated independently to connect with the fixing part 18, thereby quickly fixing the insulating tape disc 17.

[0049] During installation, first connect the angle block 15 and the reel seat 16 using fasteners. Then, place the new reel core on the reel seat 16. The screw 21 passes through the washer 22 containing the spring 23 and is securely connected to the fixed part 18 of the new reel core. By adjusting the screw 21's tightening depth, the clamping force of the friction plate 20 between the reel seat 16 and the movable part 19 is adjusted, thereby adjusting the friction torque and the tension of the reel 17. The reel 17 is then fitted onto the movable part 19, and the reel cover assembly 27 is connected to the fixed part 18 using fasteners. The tightening depth of the fasteners is adjusted according to the thickness of the reel 17.

[0050] The tape reel structure described in this application is simple in structure and easy to adjust. It does not require a complex tension adjustment structure. Only simple modifications are needed to the angle block 15, tape reel seat 16, and tape reel core. It is suitable for tension adjustment when wrapping insulation tape for small-span coils.

[0051] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of this utility model.

Claims

1. A multi-head wrapping machine, comprising a frame, a coil clamping part, and a wrapping head assembly, wherein the frame includes a base and a crossbeam, the crossbeam being supported above the base; the coil clamping part is mounted on the base, the wrapping head assembly is mounted on the crossbeam, the wrapping head assembly is suspended above the coil clamping part, and the wrapping head assembly is movable along the crossbeam; characterized in that, A strap head holder is provided at one end of the crossbeam, containing strap heads of different specifications. The strap head assembly is equipped with a quick-connect coupling, which can be quickly connected to the strap heads in the strap head holder. The strap head holder includes a base, a bracket mounted on the base, and a drive device. The strap heads are placed on the bracket, and the drive device drives the bracket to move towards the strap head assembly, causing the strap heads to extend from the base into the gap between the crossbeam and the base, so as to facilitate the replacement of strap heads in the strap head assembly.

2. The multi-pack tape wrapping machine according to claim 1, characterized in that, The base includes a bracket and a platform, with the platform mounted on the bracket; the platform is provided with a guide rail extending along the length of the crossbeam, the guide rail extending to the edge of the platform; the bottom of the carriage is equipped with a slider adapted to the guide rail.

3. The multi-pack tape wrapping machine according to claim 2, characterized in that, The height of the carriage decreases from the direction away from the strap head assembly to the direction closer to the strap head assembly, and the carriage is provided with crisscrossing reinforcing ribs.

4. The multi-pack tape wrapping machine according to claim 2, characterized in that, The drive device includes a motor, a reducer, a gear, and a rack. The motor and reducer are mounted on the platform. The gear is connected to the output end of the reducer. The rack is fixed to the bottom of the trailer. The gear and rack mesh to drive the trailer to move along the guide rail.

5. The multi-pack tape wrapping machine according to claim 1, characterized in that, The strap heads on the carriage are placed at one end of the carriage closest to the frame, and the strap heads are arranged sequentially along a direction perpendicular to the crossbeam.

6. The multi-pack tape wrapping machine according to claim 5, characterized in that, Two positioning pins are provided at each strap head placement position on the end of the carriage near the frame for easy positioning.

7. The multi-pack tape wrapping machine according to claim 2, characterized in that, It also includes a protective cover on the platform, the platform being square and the protective cover being cubic, the trolley being located inside the protective cover, and the side of the protective cover facing the strap head not having a barrier.

8. The multi-pack tape wrapping machine according to claim 1, characterized in that, The different specifications of the strapping heads refer to three different specifications of strapping heads, namely 80 strapping heads, 120 strapping heads and 160 strapping heads.

9. The multi-pack tape wrapping machine according to claim 8, characterized in that, The 80-pack tape head reel structure includes an angle block, a reel seat, and a reel core. The angle block is fixed to the tape head, the reel seat is fixed to the angle block, and the insulating tape reel is mounted on the reel core. The reel core comprises a fixed portion and a movable portion. The fixed portion passes sequentially through the movable portion and the reel seat before being fixed to the angle block. The movable portion is movably connected to the fixed portion, and the insulating tape reel is mounted on the movable portion. One end of the movable portion facing the reel seat is a contact end, and a friction plate is provided between the contact end and the reel seat. One end of the reel seat has a friction plate, and the opposite end has a locking structure that applies pressure to the reel seat along the axial direction. The movable portion rotates with the reel, and the contact end of the movable portion and the friction plate generate friction through the pressure transmitted by the locking structure, providing the tension required for insulation wrapping.

10. The multi-pack tape wrapping machine according to claim 9, characterized in that, The locking structure includes a washer and a spring; the fixing part is fixed to the angle block by a screw, which passes through the angle block and connects to the fixing part; the washer is disposed in the angle block, and the spring is disposed between the washer and the disc seat; the screw includes a head, and the center of the washer has a hole that matches the head. When the screw is tightened, the head presses the washer, and the spring is compressed between the washer and the disc seat. The contact end of the movable part rubs against the friction plate through the elastic force provided by the spring, thereby providing the tension required for insulating wrapping.

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