Concentric type strip wrapping equipment with cut-in angle capable of being adjusted on line

Abstract

The invention discloses a concentric strip wrapping device with a cut-in angle capable of being adjusted online, which comprises a wrapping assembly and a moving assembly, a core material passing area is arranged in the center of the wrapping assembly, a tension adjusting structure is arranged on the wrapping assembly, the wrapping assembly wraps a strip on the surface of a core material through the tension adjusting structure, and the moving assembly is arranged on the core material passing area. The moving assembly drives the wrapping assembly to move in the axial direction to adjust the wrapping cut-in angle. The strip is tightly lapped on the surface of the core material through online tension adjustment, and when the cut-in angle deviates from a set value, the system controls the servo motor to reversely adjust the positions of the moving block and the lapping assembly on line through the transmission lead screw to adjust the cut-in angle until the cut-in angle recovers to the set value.

Description

A concentric strip wrapping device with adjustable cut angle online Technical Field

[0001] This invention belongs to the field of wrapping packaging, specifically a concentric strip wrapping device with an adjustable cutting angle online. Background Technology

[0002] A wrapping machine is a device that wraps strip materials (mica tape, cotton paper tape, aluminum foil, polyester film, etc.) around a core material. Examples include film wrapping of pipes, steel tape armoring of cables, and wrapping of cable strips. In actual production, to ensure product quality, the strip must be wrapped tightly and evenly around the core material. This requires an accurate and stable incident angle between the strip and the core material, which can be adjusted online according to the actual production conditions. If the incident angle is too large during wrapping, it will result in poor adhesion, poor flatness, and even wrinkles in the wrapped strip, leading to repeated wrapping. If the angle is too small, it will cause the wrapped material to stretch and deform, and may even result in incomplete wrapping.

[0003] However, traditional half-cut guide rollers cannot be adjusted online and can only be adjusted when the machine is stopped, resulting in poor production efficiency. It takes a long time to find the best wrapping angle. Summary of the Invention

[0004] The technical problem to be solved by the present invention is the problem of missing or insufficient packages (too small incident angle) and excessive packages causing corrugations and bulges (too large incident angle) in existing wrapping machines.

[0005] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this invention, which adopts the following technical solution:

[0006] A concentric strip wrapping device with an adjustable cut angle includes a wrapping assembly and a moving assembly. The wrapping assembly has a core material passage area at its center and a tension adjustment structure. The wrapping assembly wraps the strip around the surface of the core material through the tension adjustment structure. The moving assembly drives the wrapping assembly to move axially to adjust the wrapping cut angle.

[0007] In a concentric strip wrapping device with an adjustable cut angle online: the moving component includes:

[0008] The side frame is independently distributed on one side of the wrapping assembly. A movable block is slidably fitted on the side frame and connected to the wrapping assembly.

[0009] The servo motor and the lead screw are both mounted on the side frame. The output end of the servo motor is connected to the lead screw to drive the moving block to move along the side frame.

[0010] The guide rail and the adjusting block are independently distributed on the outside of the wrapping assembly. The adjusting block is installed on the wrapping assembly and slides on the guide rail.

[0011] In a concentric strip wrapping device with an adjustable infeed angle, the wrapping assembly includes:

[0012] The rotating spindle has a core material passage area and a built-in channel for the strip material to pass through.

[0013] A rotary motor assembly is connected to a rotary spindle, which drives the rotary spindle to rotate.

[0014] Strip release components are distributed on the outside of the rotating spindle;

[0015] The release motor unit and the strip release component form a transmission connection, driving the strip release component to release the strip.

[0016] The tension adjustment structure is located on the outer side of one end of the rotating spindle. The strip is led out through the built-in channel and the tension of the strip is adjusted online by the tension adjustment structure.

[0017] In a concentric strip wrapping device with an adjustable infeed angle, the tension adjustment structure includes:

[0018] The support base is rotatably fitted to the rotating spindle.

[0019] A floating disk is mounted on the outer wall of the rotating spindle.

[0020] The adjustment frame has an installation chamber inside for the floating disk to rotate. The installation chamber contains two sets of magnetic groups and the floating disk has a second set of magnetic groups.

[0021] Tension regulating cylinder, which is mounted on a support base and whose piston rod is connected to a floating plate;

[0022] The movable tensioning wheel assembly slides along the axis of the rotating main shaft on the outer wall of the rotating main shaft and is connected to the floating disc via a connecting rod.

[0023] In a concentric strip wrapping device with an adjustable cutting angle online: the movable tensioning wheel group includes a guide plate, a linkage plate is slidably fitted on the guide plate, the linkage plate and the floating plate are connected by a connecting rod, a movable wheel and a tensioning wheel are installed on the linkage plate, and a wrapping wheel and a winding wheel are installed at the end of the guide plate away from the floating plate.

[0024] The strip is drawn out through the built-in channel of the rotating spindle and wound around the surface of the core material via the winding wheel, tension wheel, and wrapping wheel.

[0025] In a concentric strip wrapping device with an adjustable cutting angle: a fixed rod is installed on the support base, a connecting block is slidably fitted on the fixed rod, and the connecting block is installed on the adjustment frame.

[0026] In a concentric strip wrapping device with an adjustable cutting angle online: the strip release component includes:

[0027] Mounting plate, the mounting plate is installed on the outside of the rotating spindle;

[0028] A pulley is mounted on the outside of the rotating main shaft;

[0029] The strip roller is rotatably mounted on the outside of the rotating spindle;

[0030] The transmission component is rotatably mounted on the mounting plate, and its two ends are respectively connected to the pulley and the strip drum.

[0031] In a concentric strip wrapping device with an adjustable cutting angle: transmission gears are provided at both ends of the transmission component;

[0032] A drive disc is provided at the end of the pulley and strip roller facing the mounting disc, and a drive gear structure is provided on the inner wall of the drive disc for meshing with the drive gear.

[0033] In a concentric strip wrapping device with an adjustable cutting angle: the mounting plate is provided with a through hole for the strip to pass through;

[0034] The mounting plate is provided with a belt picker, a strip passage groove and a pressing roller group on the side facing the pulley. A sealing plate is installed at the opening of the strip passage groove, and a strip inlet is provided on the sealing plate. The strip passes through the through hole, is pressed onto the transmission plate by the pressing roller group by the belt picker, and then enters the built-in channel through the strip passage groove via the strip inlet.

[0035] In a concentric strip wrapping device with an adjustable cutting angle: the adjustment frame includes a ring disc body one and a ring disc body two, with an outer sealing ring between the ring disc body one and the ring disc body two, and multiple magnetic groups one are installed between the two facing sides of the ring disc body one and the ring disc body two, and are distributed in a circumferential and equally spaced manner.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] This invention features a tension adjustment structure that automatically adjusts the strip tension online, ensuring constant tension during wrapping and guaranteeing a tight wrap around the core material. When the strip's entry angle changes, the system controls a servo motor via a lead screw to adjust the position of the moving block and wrapping assembly online. This, in conjunction with the tension adjustment structure, adjusts the strip's entry angle, ensuring a tight wrap around the core material and preventing issues such as stacking (bulging) or excessive gaps. Attached Figure Description

[0038] Figure 1 is a schematic diagram of the overall structure of the device of the present invention.

[0039] Figure 2 is a magnified view of part A in Figure 1.

[0040] Figure 3 is a magnified view of part B in Figure 1.

[0041] Figure 4 is a schematic diagram of the tension adjustment structure.

[0042] Figure 5 is a schematic diagram of the strip release component.

[0043] Figure 6 is a schematic diagram of the installation disk and its structure.

[0044] Figure 7 is a side view of the installation disk.

[0045] Figure 8 shows the structural relationship between the floating disk and the linkage disk.

[0046] Figure 9 is a cross-sectional view of the linkage plate.

[0047] Figure 10 is a schematic diagram of the tensioning wheel.

[0048] Figure 11 shows the location distribution of the strip passing through the slots and the built-in channels.

[0049] Figure 12 is a front view of the overall structure of the device of the present invention.

[0050] Figure 13 is a top view of the moving component.

[0051] Figure 14 is a schematic diagram of the overall structure of the device of the present invention.

[0052] Figure 15 is a schematic diagram of the core material double strip wrapping structure.

[0053] In the picture:

[0054] 10. Wrapping assembly; 11. Rotary spindle; 12. Rotary motor assembly; 13. Built-in channel; 14. Strip release component; 141. Mounting plate; 142. Pulley disc; 143. Strip roller; 144. Transmission component; 145. Transmission gear; 146. Transmission disc; 147. Through hole; 148. Strip pick-up pulley; 149. Strip through-groove; 150. Sealing plate; 151. Pressure roller assembly; 15. Release motor assembly;

[0055] 20. Moving component; 21. Side frame; 22. Moving block; 23. Servo motor; 24. Lead screw; 25. Guide rail; 26. Adjusting block;

[0056] 30. Tension adjustment structure; 31. Support base; 32. Floating disc; 33. Adjustment frame; 331. Ring disc body one; 332. Ring disc body two; 333. Outer sealing ring; 34. Installation chamber; 35. Magnetic group two; 36. Magnetic group one; 37. Tension adjustment cylinder; 38. Moving tension wheel group; 381. Guide plate; 382. Linkage disc; 383. Connecting rod; 384. Tension wheel; 385. Moving wheel; 386. Wrapping wheel; 387. Winding wheel; 39. Fixed rod; 310. Connecting block. Detailed Implementation

[0057] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0058] Referring to Figures 1, 12, and 13, a concentric strip wrapping device with an online adjustable cut angle includes a wrapping assembly 10 and a moving assembly 20. The wrapping assembly 10 has a core material passage area at its center and a tension adjustment structure 30 on its surface. The wrapping assembly 10 wraps the strip around the surface of the core material through the tension adjustment structure 30. The moving assembly 20 drives the wrapping assembly 10 to move axially to adjust the wrapping cut angle.

[0059] The core material passes through the core material passage area into the wrapping assembly 10. The strip is wrapped tightly around the core material surface with constant tension by the tension adjustment structure 30 of the wrapping assembly 10. The system adjusts the position of the wrapping assembly 10 by controlling the moving component 20, thereby adjusting the angle of the strip on the core material, thus realizing an online adjustable cutting angle. This solves the problem of strip stacking (bulging, wrinkling) or excessive strip gaps that easily occur during wrapping in the prior art.

[0060] In the concentric strip wrapping device with adjustable cutting angle online: as shown in Figures 11 and 12, in order to adjust the cutting angle of the strip by adjusting the position of the wrapping assembly 10, the moving assembly 20 is structurally optimized. The moving assembly 20 includes:

[0061] Side frame 21 is independently distributed on one side of the wrapping assembly 10. A movable block 22 is slidably fitted on the side frame 21 and connected to the wrapping assembly 10.

[0062] Servo motor 23 and transmission screw 24 are both mounted on side frame 21. The output end of servo motor 23 is connected to transmission screw 24 to drive moving block 22 to move along side frame 21.

[0063] The guide rail 25 and the adjusting block 26 are independently distributed on the outside of the wrapping assembly 10. The adjusting block 26 is mounted on the wrapping assembly 10 and slides on the guide rail 25.

[0064] The servo motor 23 drives the transmission screw 24 to rotate in both directions, thereby adjusting the position of the moving block 22 and the wrapping assembly 10 together along the length direction of the side frame 21. That is, along the axial direction of the wrapping assembly 10 and the core material, the wrapping assembly 10 and the adjusting block 26 will run smoothly along the length direction of the guide rail 25, thereby realizing the axial movement of the wrapping assembly 10.

[0065] As shown in Figures 1, 4, and 5, in the concentric strip wrapping device with an online adjustable cutting angle: the wrapping assembly 10 includes:

[0066] The rotating spindle 11 has a core material passage area for the core material to pass through and an internal channel 13 for the strip material to pass through.

[0067] The rotary motor assembly 12 and the rotary spindle 11 form a transmission connection, driving the rotary spindle 11 to rotate.

[0068] Strip release element 14 is distributed on the outside of the rotating spindle 11;

[0069] Release motor assembly 15, release motor assembly 15 and strip release component 14 form a transmission connection, drive strip release component 14 to release strip;

[0070] The tension adjustment structure 30 is located on the outer side of one end of the rotating spindle 11. The strip is led out through the built-in channel 13 and the tension of the strip is adjusted online through the tension adjustment structure 30.

[0071] The rotary motor unit 12 independently drives the rotary spindle 11 to rotate, tightly wrapping the strip around the surface of the core material. When the position of the tension adjustment structure 30 changes, the system will coordinate to control the release motor unit 15 to independently drive the strip release component 14 to release the strip, realizing fast and slow speed release of the strip, preventing the strip from being over-tensioned and breaking or being stretched and thinned.

[0072] As shown in Figures 2 to 4 and Figures 8 to 10, the tension adjustment structure 30 includes:

[0073] Support base 31, which is rotatably fitted with rotating spindle 11;

[0074] Floating disk 32 is mounted on the outer wall of rotating spindle 11;

[0075] An adjustment frame 33 is provided, and an installation chamber 34 is provided inside the adjustment frame 33 for the floating disk 32 to rotate. Two sets of magnetic groups 36 are provided inside the installation chamber 34, and a second set of magnetic groups 35 is provided on the floating disk 32.

[0076] Tension adjusting cylinder 37 (which can be an electric cylinder or a pneumatic cylinder) is mounted on support base 31 and its piston rod is connected to floating plate 32;

[0077] The movable tensioning wheel assembly 38 is slidably fitted on the outer wall of the rotating main shaft 11 along the axial direction of the rotating main shaft 11, and is connected to the floating disk 32 through the connecting rod 383.

[0078] As shown in Figures 8 to 10, the movable tensioning wheel assembly 38 includes a guide plate 381, which is installed on the outside of the rotating main shaft 11. A linkage disc 382 is slidably fitted on the guide plate 381. The linkage disc 382 and the floating disc 32 are connected by a connecting rod 383. A movable wheel 385 and a tensioning wheel 384 are installed on the linkage disc 382. A wrapping wheel 386 and a winding wheel 387 are installed on the end of the guide plate 381 away from the floating disc 32. A slot is provided on the linkage disc 382 for the guide plate 381 to pass through. A groove is provided on the side of the slot near the rotating main shaft 11. The mounting plates on both sides of the tensioning wheel 384 are installed in the groove. After the two ends of the guide plate 381 are connected to the rotating main shaft 11, the tensioning wheel 384 is constrained from detaching from the groove and the slot by the restriction of the guide plate 381.

[0079] The strip is led out through the built-in channel 13 of the rotating spindle 11 and wound around the core material surface via the winding wheel 387, tensioning wheel 384, and wrapping wheel 386.

[0080] As shown in Figure 11, a fixing rod 39 is installed on the support base 31, and a connecting block 310 is slidably fitted on the fixing rod 39. The connecting block 310 is installed on the adjusting frame 33.

[0081] As shown in Figure 2, the adjusting frame 33 includes a first annular disc 331 and a second annular disc 332. An outer sealing ring 333 is provided between the first annular disc 331 and the second annular disc 332. Magnetic assemblies 36 are installed between the facing sides of the first annular disc 331 and the second annular disc 332, and are distributed in a circumferential manner at equal intervals. The two ends of the outer sealing ring 333 are connected to the first annular disc 331 and the second annular disc 332 by bolts, facilitating the installation of the floating disc 32.

[0082] As shown in Figures 5 to 7 and Figure 11, in the concentric strip wrapping device with an online adjustable cutting angle: the strip release member 14 includes:

[0083] Mounting plate 141 is mounted on the outside of the rotating spindle 11;

[0084] A pulley 142 is rotatably mounted on the outside of the rotating main shaft 11;

[0085] The strip roller 143 is rotatably mounted on the outside of the rotating spindle 11;

[0086] Transmission component 144 is rotatably mounted on mounting plate 141 and its two ends are respectively connected to pulley plate 142 and strip roller 143.

[0087] The transmission component 144 is provided with transmission gears 145 at both ends;

[0088] A transmission disc 146 is provided at one end of the pulley disc 142 and the strip roller 143 facing the mounting disc 141. The inner wall of the transmission disc 146 is provided with a transmission gear structure for meshing with the transmission gear 145.

[0089] The mounting plate 141 is provided with a through hole 147 for the strip to pass through;

[0090] The mounting plate 141 is provided with a belt picker 148, a strip passage groove 149 and a pressing roller group 151 on the side facing the pulley plate 142. A sealing plate 150 is installed at the opening of the strip passage groove 149. A strip inlet is provided on the sealing plate 150. The strip passage groove 149 is distributed on the outside of the rotating spindle 11 and corresponds to the inlet position of the built-in channel 13. The strip passes through the through hole 147, the belt picker 148 and is pressed by the pressing roller group 151 onto the transmission plate 146, and then enters the built-in channel 13 through the strip passage groove 149 via the strip inlet.

[0091] The strip is released synchronously by the strip roller 143 as the rotating spindle 11 rotates. The released strip is lifted by the picker roller 148 through the through hole 147 and guided into the outer wall between the pressure roller group 151 and the corresponding transmission disk 146. The pressure roller group 151 includes two sets of rollers and a pressure belt fitted on the outside of the rollers. The pressure belt tightly adheres the strip to the outside of the transmission disk 146. After passing through the pressure belt, the strip enters the strip inlet and the strip through the strip through the through groove 149 and enters the built-in channel 13. Finally, it is introduced from the end of the rotating spindle 11 and then wrapped around the compact core material in sequence through the winding wheel 387, the tensioning wheel 384, and the wrapping wheel 386.

[0092] During actual wrapping, the core material passes through the core material passage area and rotates the spindle 11. The strip is guided into the built-in channel 13 and led out from the end of the spindle 11. It is then led out through the winding wheel 387, tension wheel 384, and wrapping wheel 386. Under the action of the rotary motor 12, the spindle 11 wraps the strip around the surface of the core material. A position sensor (which can be installed on the support base 31) is independently set on one side of the axial direction of the adjusting frame 33. The position sensor is used to detect the position change of the adjusting frame 33 and to determine the strip tension based on the position change. The system automatically controls the release motor 15 to rotate via the belt drive connected to the pulley 142. The pulley 142 drives the two transmission discs 146 to rotate, actively accelerating or decelerating the strip release, thereby achieving constant tension wrapping. Here, constant tension refers to a set tension range, not a specific tension value.

[0093] When the tension increases, the strip will drive the linkage disc 382 to approach the end of the rotating spindle 11, and via the connecting rod 383, drive the floating disc 32 to approach the support base 31. Since the floating disc 32 and the adjusting frame 33 are connected by non-contact (magnetic repulsion), the adjusting frame 33 and the connecting block 310 will approach the support base 31 along the length of the fixed rod 39. The position sensor will detect the position change, and the system will release the motor group 15 to accelerate the rotation of the belt drive pulley 142, and adjust the position of the adjusting frame 33 in the opposite direction until it returns to the set position, thus automatically reducing the tension.

[0094] When the tension decreases, the force exerted by the strip on the tensioning wheel 384 decreases, and the linkage disc 382 moves away from the end of the rotating spindle 11. Through the connecting rod 383, the floating disc 32 moves away from the support seat 31. Since the floating disc 32 and the adjusting frame 33 are connected by non-contact (magnetic repulsion), the adjusting frame 33 and the connecting block 310 move away from the support seat 31 along the length of the fixed rod 39. The position sensor detects the position change and releases the motor unit 15 to decelerate the pulley 142 via belt drive, adjusting the position of the adjusting frame 33 in the opposite direction until it returns to the set position, thus automatically increasing the tension and finally completing the constant tension winding operation.

[0095] When the cutting angle changes, the moving component 20 moves in real time to adjust the cutting angle of the strip when wrapping the core material, restoring it to the set angle and completing the neat wrapping work.

[0096] This case can use two sets of wrapping components 10, as shown in Figure 14, to achieve two wrapping operations, as shown in Figure 15. The second wrapping strip needs to cover the wrapping seam of the first wrapping strip.

[0097] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made to the technical solutions and inventive concepts of the present invention should all be covered within the scope of protection of the present invention.

Claims

1. A concentric strip wrapping device with an adjustable cutting angle online, characterized in that, It includes a wrapping assembly (10) and a moving assembly (20). The wrapping assembly (10) has a core material passage area at its center and a tension adjustment structure (30) on it. The wrapping assembly (10) wraps the strip around the core material surface through the tension adjustment structure (30). The moving assembly (20) drives the wrapping assembly (10) to run along the axial direction to adjust the wrapping cutting angle.

2. The concentric strip wrapping device with adjustable cutting angle according to claim 1, characterized in that: The moving component (20) includes: a side frame (21), which is independently distributed on one side of the wrapping component (10), and a moving block (22) is slidably fitted on the side frame (21), which is connected to the wrapping component (10); a servo motor (23) and a transmission screw (24), which are both mounted on the side frame (21), and the output end of the servo motor (23) is connected to the transmission screw (24) to drive the moving block (22) to move along the side frame (21); a guide rail (25) and an adjusting block (26), which are independently distributed on the outside of the wrapping component (10), and the adjusting block (26) is mounted on the wrapping component (10), which is slidably fitted on the guide rail (25).

3. The concentric strip wrapping device with adjustable cutting angle according to claim 1, characterized in that: The wrapping assembly (10) includes: a rotating spindle (11), which has a core material passage area for the core material to pass through and an internal channel (13) for the strip material to pass through; a rotating motor assembly (12), which is connected to the rotating spindle (11) to drive the rotating spindle (11) to rotate; a strip material release component (14), which is distributed on the outside of the rotating spindle (11); a release motor assembly (15), which is connected to the strip material release component (14) to drive the strip material release component (14) to release the strip material; and a tension adjustment structure (30) which is arranged on the outside of one end of the rotating spindle (11), and the strip material is led out through the internal channel (13) and the tension of the strip material is adjusted online by the tension adjustment structure (30).

4. The concentric strip wrapping device with adjustable cutting angle according to claim 3, characterized in that: The tension adjustment structure (30) includes: a support base (31), which is rotatably fitted with the rotating main shaft (11); a floating disk (32), which is mounted on the outer wall of the rotating main shaft (11); an adjustment frame (33), which is provided with an installation chamber (34) for the floating disk (32) to rotate, and the installation chamber (34) is provided with two sets of magnetic groups one (36) and the floating disk (32) is provided with magnetic group two (35); a tension adjustment cylinder (37), which is mounted on the support base (31) and the piston rod is connected to the floating disk (32); and a movable tensioning wheel group (38), which is slidably fitted on the outer wall of the rotating main shaft (11) along the axial direction of the rotating main shaft (11) and is connected to the floating disk (32) through a connecting rod (383).

5. The concentric strip wrapping device with adjustable cutting angle according to claim 4, characterized in that: The movable tensioning wheel assembly (38) includes a guide plate (381), on which a linkage disc (382) is slidably fitted. The linkage disc (382) and the floating disc (32) are connected by a connecting rod (383). The linkage disc (382) is equipped with a movable wheel (385) and a tensioning wheel (384). At the end of the guide plate (381) away from the floating disc (32), a wrapping wheel (386) and a winding wheel (387) are installed. The strip is led out through the built-in channel (13) of the rotating spindle (11) and wound around the core material surface through the winding wheel (387), the tensioning wheel (384), and the wrapping wheel (386).

6. The concentric strip wrapping device with online adjustable cutting angle according to claim 4, characterized in that: A fixing rod (39) is installed on the support base (31), and a connecting block (310) is slidably fitted on the fixing rod (39). The connecting block (310) is installed on the adjusting frame (33).

7. The concentric strip wrapping device with online adjustable cutting angle according to claim 3, characterized in that: The strip release component (14) includes: a mounting plate (141), which is mounted on the outside of the rotating spindle (11); a pulley disc (142), which is rotatably mounted on the outside of the rotating spindle (11); a strip roller (143), which is rotatably mounted on the outside of the rotating spindle (11); and a transmission component (144), which is rotatably mounted on the mounting plate (141) and whose two ends are respectively connected to the pulley disc (142) and the strip roller (143).

8. The concentric strip wrapping device with online adjustable cutting angle according to claim 7, characterized in that: The transmission component (144) is provided with transmission gears (145) at both ends; the pulley disc (142) and the strip roller (143) are provided with a transmission disc (146) at one end facing the mounting disc (141), and the inner wall of the transmission disc (146) is provided with a transmission tooth structure for meshing with the transmission gear (145).

9. A concentric strip wrapping device with an adjustable cutting angle according to claim 7, characterized in that: The mounting plate (141) is provided with a through hole (147) for the strip to pass through; the mounting plate (141) is provided with a belt picker (148), a strip passage groove (149) and a pressing roller group (151) on the side facing the pulley disc (142). A sealing plate (150) is installed at the opening of the strip passage groove (149). A strip inlet is provided on the sealing plate (150). The strip passes through the through hole (147), the belt picker (148) and is pressed by the pressing roller group (151) onto the transmission disc (146), and then enters the built-in channel (13) through the strip passage groove (149) via the strip inlet.

10. A concentric strip wrapping device with an adjustable cutting angle according to claim 4, characterized in that: The adjustment frame (33) includes a first ring disc (331) and a second ring disc (332). An outer sealing ring (333) is provided between the first ring disc (331) and the second ring disc (332). A first magnetic group (36) is installed between the two sides of the first ring disc (331) and the second ring disc (332) and is distributed in a circumferential and equally spaced manner.

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