Cable sheath profiling device

Abstract

The utility model relates to a cable sheath profiling device which comprises two profiling wheel forming sets, and each profiling wheel forming set comprises a supporting module, a profiling wheel module and a driving module. The profiling wheel module is connected with the supporting module, comprises a first convex profiling wheel, a first concave profiling wheel, a second convex profiling wheel and a second concave profiling wheel, and is used for sequentially profiling the metal strip; the driving module is connected with the profiling wheel module and used for adjusting the position relation of the first convex profiling wheel, the first concave profiling wheel, the second convex profiling wheel and the second concave profiling wheel. Through cooperative work of the two profiling wheel forming sets, the overall forming radian of the metal strip is gradually increased, and the cable sheath forming effect is more accurate and uniform; and each driving piece of the driving module can independently adjust the position relation of each profiling wheel, so that flexible adjustment can be performed according to different metal strip specifications and forming requirements, and the adaptability and universality of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable manufacturing, in particular to a cable sheath pressing device. Background Art

[0002] As the outer protective layer of the power cable, the cable sheath guides the electric field and current inside the cable to the ground in the return path of the fault current and the return path of the inductive capacitor charging current, reducing the safety risks to people and equipment. It also provides the necessary protection and safety measures for the moisture and water resistance of the cable insulation, ensuring the stability and safety of power transmission. Therefore, the cable sheath is widely used in ultra-high voltage, high voltage, medium voltage and low voltage cable transmission lines.

[0003] However, in the cable manufacturing process, the cable outer sheath has been manually adjusted using traditional mechanical wheels. The cable outer sheath is poorly formed after pressing, and problems such as welding leakage or cold welding often occur in the welding pipe. After such defective cables with welding leakage or cold welding are applied to the power grid system, water will enter the cable due to surface defects. Under the action of the electric field, water tree aging will occur, which may eventually cause cable breakdown and large-scale power outages. Utility Model Content

[0004] Based on this, it is necessary to provide a cable sheath profiling device to address the problem of inaccurate cable sheath profiling.

[0005] A cable sheath profiling device, the device comprises two profiling wheel forming groups, the profiling wheel forming groups comprising:

[0006] Support module;

[0007] A profiling wheel module connected to the supporting module, the profiling wheel module comprising a first convex profiling wheel, a first concave profiling wheel, a second convex profiling wheel and a second concave profiling wheel, for sequentially profiling the metal strip; and

[0008] The driving module is connected to the pressing wheel module and is used to adjust the positional relationship between the first convex pressing wheel, the first concave pressing wheel, the second convex pressing wheel and the second concave pressing wheel.

[0009] In one embodiment, the device further comprises:

[0010] A first cam screw shaft, disposed on the central axis of the first convex pressure wheel, a first end of the first cam screw shaft being connected to the driving module, and being used to drive the first convex pressure wheel to move along a first direction; and

[0011] A first concave wheel screw shaft is arranged on the central axis of the first concave pressure wheel, and a first end of the first concave wheel screw shaft is connected to the driving module, so as to drive the first concave pressure wheel to move along the first direction;

[0012] Wherein, the first cam screw shaft and the first cam screw shaft are hollow shafts.

[0013] In one embodiment, the device further comprises:

[0014] A second cam screw shaft, disposed on the central axis of the second convex pressure wheel, a second end of the second cam screw shaft connected to the second end of the first cam screw shaft, and a first end of the second cam screw shaft connected to the driving module; and

[0015] The second cam screw shaft is arranged on the central axis of the second concave pressing wheel, the second end of the second cam screw shaft is connected to the second end of the first cam screw shaft, and the first end of the second cam screw shaft is connected to the driving module.

[0016] In one embodiment, the device further comprises a first positioning assembly for adjusting the position of the first convex pressing wheel in the first direction, the first positioning assembly comprising:

[0017] A first output member, connected to the supporting module, comprises a first cylinder and a first electromagnetic head, wherein the first cylinder drives the first electromagnetic head to fit the first reflecting member; and

[0018] The first reflecting member is arranged at one end of the first convex pressure wheel close to the first output member, and is used for locking or unlocking the first convex pressure wheel and the first cam screw shaft.

[0019] In one embodiment, the first reflective member comprises:

[0020] A first magnetic conductive plate, arranged corresponding to the first electromagnetic head;

[0021] A first wedge is configured as a triangular cylindrical wedge, and when the first electromagnetic head is in contact with the first magnetic conductive plate, the first wedge moves along the second direction and is in contact with the first magnetic conductive plate; and

[0022] The first positioning pin abuts against the first wedge and moves along the second direction with the first wedge.

[0023] In one embodiment, the opposing surfaces of the first wedge and the first positioning pin are complementary inclined surfaces.

[0024] In one of the embodiments, the first cam screw shaft is evenly provided with first positioning grooves in the circumference thereof, and the first positioning grooves are matched with the first positioning pins.

[0025] In one embodiment, the support module comprises:

[0026] A first vertical screw rod, a first end of the first vertical screw rod is connected to the support module, and a second end of the first vertical screw rod is connected to the drive module; the first vertical screw rod is used to adjust the position of the first convex pressure wheel in the second direction.

[0027] In one embodiment, the support module further comprises:

[0028] A first bearing seat having a first mounting hole for passing the first cam screw shaft; and

[0029] The first support plate is connected to the first bearing seat and is used to support the first cam screw shaft and the first drive motor.

[0030] In one of the embodiments, a first deep groove ball bearing is disposed in the first mounting hole, and an inner ring of the first deep groove ball bearing is tightly matched with the first cam screw shaft.

[0031] The cable sheath profiling device mentioned above can accurately perform multiple profiling on the cable sheath through the coordinated work of the profiling wheel forming group, and can make the forming effect more accurate and uniform by gradually increasing the arc of the overall forming of the metal strip; each driving component of the driving module can independently adjust the positional relationship of each profiling wheel, so that it can be flexibly adjusted according to different metal strip specifications and forming requirements, thereby improving the adaptability and versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is a front structural schematic diagram of a cable sheath profiling device in one embodiment of the utility model;

[0034] Figure 2 It is a side sectional view of a profiling device for profiling a cable sheath in one embodiment of the utility model;

[0035] Figure 3 A cross-sectional view of a first convex pressing wheel in one embodiment of the utility model;

[0036] Figure 4 This is a structural diagram of the first cylinder in one embodiment of the utility model;

[0037] Figure 5 This is a structural diagram of the first bearing seat in one embodiment of the utility model. DETAILED DESCRIPTION

[0038] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0045] The x direction is the first direction, and the y direction is the second direction.

[0046] See also Figure 1 , Figure 1 The front structural schematic diagram of the cable sheath profiling device in one embodiment of the utility model is shown. The cable sheath profiling device provided in one embodiment of the utility model includes two profiling wheel forming groups, and the profiling wheel forming groups include a supporting module, a profiling wheel module and a driving module. The profiling wheel module is connected to the supporting module, and the profiling wheel module includes a first convex profiling wheel, a first concave profiling wheel, a second convex profiling wheel and a second concave profiling wheel, which are used to perform profiling on the metal strip in sequence; the driving module is connected to the profiling wheel module, and is used to adjust the positional relationship between the first convex profiling wheel, the first concave profiling wheel, the second convex profiling wheel and the second concave profiling wheel.

[0047] Specifically, the first convex embossing wheel 102 and the second convex embossing wheel 104 have the same shape and size, the first concave embossing wheel 106 and the second concave embossing wheel 108 have the same shape and size, the surfaces of the first convex embossing wheel 102 and the first concave embossing wheel 106 close to each other are complementary, and the surfaces of the second convex embossing wheel 104 and the second concave embossing wheel 108 close to each other are complementary. The driving module includes a first driving member 110, a second driving member 112, a third driving member 114 and a fourth driving member 116, the first driving member is connected to the first convex embossing wheel 102, the second driving member is connected to the first concave embossing wheel 106, the third driving member is connected to the second convex embossing wheel 104, and the fourth driving member is connected to the second concave embossing wheel 108. Each driving member of the driving module can independently adjust the positional relationship between the first convex embossing wheel 102, the first concave embossing wheel 106, the second convex embossing wheel 104 and the second concave embossing wheel 108. Exemplarily, the metal strip is pulled by the pulling device through the first embossing wheel forming group 10, and the two sides of the metal strip are embossed by the first convex embossing wheel 102, the first concave embossing wheel 106, the second convex embossing wheel 104, and the second concave embossing wheel 108, respectively, and the arc of the overall forming of the metal strip is gradually increased during the embossing process. Secondly, the metal strip passes through the second embossing wheel forming group, and the second embossing wheel forming group 20 continues to emboss the two sides of the metal strip and gradually increases the arc of the overall forming of the metal strip. Among them, the metal strip 30 drives the rotation of the first convex embossing wheel 102, the first concave embossing wheel 106, the second convex embossing wheel 104, and the second concave embossing wheel 108 of the first embossing wheel forming group.

[0048] Optionally, the two pressing wheel forming groups are arranged in sequence along the first direction, the center distance between the two pressing wheel forming groups is 0.9 to 1.2 meters, and the center lines between the pressing wheel modules of the two pressing wheel forming groups are on the same center line.

[0049] In this embodiment, by the coordinated work of two profiling wheel forming groups, the cable sheath can be accurately profiled multiple times, and the forming effect can be made more precise and uniform by gradually increasing the arc of the overall forming of the metal strip; each driving component of the driving module can independently adjust the positional relationship of each profiling wheel, so that it can be flexibly adjusted according to different metal strip specifications and forming requirements, thereby improving the adaptability and versatility of the device.

[0050] Please continue reading Figure 1 Combined with Figure 2 In some embodiments, the cable sheath pressing device further includes a first cam screw shaft, a first cam screw shaft, a second cam screw shaft and a second cam screw shaft.

[0051] Among them, the first cam screw shaft 118 is arranged on the central axis of the first convex pressure wheel, and the first end of the first cam screw shaft 118 is connected to the first driving member, which is used to drive the first convex pressure wheel to move along the first direction; the first concave wheel screw shaft 120 is arranged on the central axis of the first concave pressure wheel, and the first end of the first concave wheel screw shaft 120 is connected to the second driving member, which is used to drive the first concave pressure wheel to move along the first direction; the second cam screw shaft 122 is arranged on the central axis of the second convex pressure wheel, and the second end of the second cam screw shaft 122 is connected to the second end of the first cam screw shaft 118, and the first end of the second cam screw shaft 122 is connected to the third driving member; the second concave wheel screw shaft 124 is arranged on the central axis of the second concave pressure wheel, and the second end of the second concave wheel screw shaft 124 is connected to the second end of the first concave wheel screw shaft 120, and the first end of the second concave wheel screw shaft 124 is connected to the fourth driving member. The first cam screw shaft 118, the first concave screw shaft 120, the second cam screw shaft 122 and the second concave screw shaft 124 are provided with threads, which are connected with the first convex pressure wheel 102, the first concave pressure wheel 106, the second convex pressure wheel 104 and the second concave pressure wheel 108 through the threads and control the position in the first direction. The first cam screw shaft 118 and the first concave screw shaft 120 are hollow shafts, and the second cam screw shaft 122 includes a first shaft body 126 and a second shaft body 128. The diameter of the first shaft body is the same as the diameter of the first cam screw shaft 118, and the diameter of the second shaft body is the same as the inner diameter of the first cam screw shaft 118. The second shaft body extends into the hollow part of the first cam screw shaft 118; the second concave screw shaft 124 has the same size type as the second cam screw shaft 122. Optionally, graphite copper sleeves are arranged in the hollow shafts of the first cam screw shaft 118 and the first cam screw shaft 120 to facilitate the movable connection between the second cam screw shaft 122 and the first cam screw shaft 118 , and the second cam screw shaft 124 and the first cam screw shaft 120 .

[0052] Specifically, the support module includes a base 130, a first support base 132, a second support base 134, a first support platform 136, a second support platform 138, a first vertical frame 140 and a second vertical frame 142. The first support base 132 and the second support base 134 are screwed to both ends of the base 130 along the first direction, the first support platform 136 is connected to the first support base 132, and the second support platform is connected to the second support base 134. The first support base 132, the first support platform 136 and the first vertical frame are installed as one body, and a first support plate 144 is provided on the first support base 132, and the first support plate is arranged parallel to the first support base 132 along the second direction for carrying the first driving member; the second support base 134, the second support platform and the second vertical frame are installed as one body, and the second support plate 146 is arranged parallel to the second support base 134 along the second direction for carrying the second driving member. A first bearing and a second bearing are provided on the first vertical structure, and a third bearing and a fourth bearing are provided on the second vertical structure; the first cam screw shaft 118, the first cam screw shaft 120, the second cam screw shaft 122 and the second cam screw shaft 124 are respectively fastened to the first bearing, the second bearing, the third bearing and the fourth bearing through a sleeve locking nut. Optionally, the second bearing and the fourth bearing are ball rolling bearings.

[0053] The driving module further includes a first electromagnetic clutch 148, a second electromagnetic clutch 150, a third electromagnetic clutch and a fourth electromagnetic clutch; the first electromagnetic clutch, the second electromagnetic clutch, the third electromagnetic clutch and the fourth electromagnetic clutch are respectively connected to the first driving member, the second driving member, the third driving member and the fourth driving member through a shaft coupling 152; the other ends of the first electromagnetic clutch, the second electromagnetic clutch, the third electromagnetic clutch and the fourth electromagnetic clutch are respectively connected to the first cam screw shaft 118, the first concave wheel screw shaft 120, the second cam screw shaft 122 and the second concave wheel screw shaft 124 through a shaft end coupling 154. Exemplarily, the first driving member rotates through the coupling to drive the first electromagnetic clutch to rotate, the first electromagnetic clutch drives the first cam screw shaft 118 to rotate through the shaft end coupling, and the thread on the first cam screw shaft 118 adjusts the position of the first convex pressure wheel 102 in the first direction.

[0054] In this embodiment, precise adjustment and positioning of the profiling wheel module are achieved through the cooperation of the screw shaft and the drive module; the integrated connection between the base and the first vertical structure and the second vertical structure enhances the overall stability of the device, reduces vibration and displacement during the profiling process, and improves the profiling quality; the combination of the electromagnetic clutch and the drive element can efficiently transmit the driving force, and achieve rapid response and adjustment, thereby improving production efficiency.

[0055] See also Figure 1-5In some embodiments, the cable sheath profiling device further comprises a first positioning assembly for adjusting a position of the first convex profiling wheel in a first direction, and the first positioning assembly comprises a first output member and a first reflecting member.

[0056] The first output member is connected to the first vertical frame 140, and the first output member includes a first cylinder 156, a first electromagnetic head 158 and a first photoelectric sensor, and the first electromagnetic head is installed at the end of the push rod of the first cylinder. The first reflector is arranged at one end of the first convex pressure wheel close to the first output member, and is used to lock or unlock the first convex pressure wheel 102 and the first cam screw shaft 118. The first reflector includes a first magnetic conductive plate 160, a first wedge 162 and a first positioning pin 164, and the first magnetic conductive plate is arranged corresponding to the first electromagnetic head; the first wedge is arranged as a triangular cylindrical wedge, and when the first electromagnetic head is in contact with the first magnetic conductive plate, the first wedge moves along the second direction to be in contact with the first magnetic conductive plate; the first positioning pin abuts against the first wedge, and moves along the second direction with the first wedge through the spring 166. The first cylinder adopts MAL-CA40X150 cylinder, including a cylinder body 172, on which a front air source interface 174 and a rear air source interface 176 are installed; a fixed installation thread 178 is arranged on the cylinder body, and an extension shaft is installed on the cylinder push rod 180 of the cylinder body, and a first electromagnetic head and a photoelectric sensor are installed on the end of the extension shaft, wherein the first electromagnetic head 158 is provided with an electromagnetic head terminal 184, and the photoelectric sensor 188 is provided with a photoelectric sensor terminal 186.

[0057] Exemplarily, the first photoelectric sensor detects the reflector 168 on the first magnetic conductive plate to determine the position of the first convex pressure wheel 102. When the first convex pressure wheel 102 is not in the desired position, the push rod of the first cylinder pushes the first electromagnetic head to make the first electromagnetic head fit with the first magnetic conductive plate, and the first magnetic conductive plate absorbs the first wedge, and the first wedge moves away from the first cam screw shaft 118 along the second direction. The spring applies a thrust to the positioning pin, so that the positioning pin abuts against the first wedge, and the relative surfaces of the first wedge and the first positioning pin are complementary inclined surfaces, so that the first cam screw shaft 118 can continue to rotate with the first driving member and continue to adjust the position of the first convex pressure wheel 102 in the first direction. The first cam screw shaft 118 is evenly provided with first positioning grooves in the circumference, and the first positioning grooves are matched with the first positioning pins. Optionally, the first positioning grooves 170 are evenly provided with four grooves along the circumference of the first cam screw shaft 118, and the first positioning grooves are distributed in a cross shape.

[0058] In this embodiment, the first convex profiling wheel is locked and unlocked on the screw through the first positioning piece, and the first convex profiling wheel is precisely adjusted and positioned to ensure the accuracy and consistency of the profiling process; the first magnetic conductive plate, the first wedge and the first positioning pin are used to ensure the stability and reliability of the positioning assembly, reduce mechanical wear and improve the response speed.

[0059] In some embodiments, the support module also includes a first vertical screw and a first bearing seat, the first end of the first vertical screw is connected to the support module, and the second end of the first vertical screw is connected to the driving module; the first vertical screw is used to adjust the position of the first convex wheel in the second direction; the first bearing seat is provided with a first mounting hole for passing the first cam screw shaft; a first deep groove ball bearing is provided in the first mounting hole, and the inner ring of the first deep groove ball bearing is tightly matched with the first cam screw shaft.

[0060] Specifically, the first vertical structure is provided with a first slide groove 202, and the first bearing seat 196 is installed on the first slide groove 202. The first bearing seat 196 and the lower end of the first vertical screw rod 194 pass through the movable hole of the first bearing seat 196. The first bearing seat 196 is locked by two upper and lower locking nuts. A pressure bearing is installed at the upper and lower positions of the two locking nuts. The first bearing seat 196 is moved up and down on the first vertical structure 140 by rotating the first vertical screw rod 194. The first bearing seat 196 is provided with a first mounting hole, and a first deep groove ball bearing 198 is provided in the first mounting hole 200. The first cam screw shaft 118 passes through the first deep groove ball bearing and is fastened to the first bearing seat 196 by a locking nut. The first bearing seat 196 is provided with a slideway and a movable hole 204. The slideway of the first bearing seat 196 can move along the second direction in the first slide groove 202 of the first vertical structure.

[0061] Optionally, the first bearing seat 196 is a UCT series bearing seat. The first vertical screw 194 is connected to the first gearbox, a thread is arranged in the first gearbox to engage with the first vertical screw 194, the first gearbox is mounted on the first vertical structure, and the first vertical drive member 190 is mounted on the first gearbox 192; when the first vertical drive member is powered on, it drives the first gearbox to rotate, and the first gearbox drives the first vertical screw 194 to rotate, so that the first bearing seat 196 moves along the second direction on the first vertical structure.

[0062] In this embodiment, the position of the first convex profiling wheel in the second direction can be accurately adjusted through the first vertical screw and the first bearing seat to ensure the accuracy of the profiling process; the inner ring of the first deep groove ball bearing is tightly matched with the first cam screw shaft to ensure the high efficiency and stability of the transmission and reduce wear; through the first slide groove and slideway structure set on the first vertical structure, the stable movement of the first bearing seat is achieved, which further enhances the stability of the device and reduces vibration displacement.

[0063] It should be understood from the accompanying drawings that the functions and structures of the first concave embossing wheel 106 , the second convex embossing wheel 104 and the second concave embossing wheel 108 are the same as or similar to those of the first convex embossing wheel 102 , and are not described in detail herein.

[0064] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cable sheath profiling device, characterized in that: The device comprises two pressing wheel forming groups, and the pressing wheel forming groups comprise: Support module; a profiling wheel module connected to the supporting module, the profiling wheel module comprising a first convex profiling wheel, a first concave profiling wheel, a second convex profiling wheel and a second concave profiling wheel, for profiling the metal strip; and A driving module is connected to the molding wheel module and is used to adjust the positional relationship among the first convex molding wheel, the first concave molding wheel, the second convex molding wheel and the second concave molding wheel.

2. The device according to claim 1, characterized in that The device also includes: a first cam screw shaft, disposed on the central axis of the first convex pressure wheel, wherein a first end of the first cam screw shaft is connected to the driving module and is used to drive the first convex pressure wheel to move in a first direction; and A first concave wheel screw shaft is arranged on the central axis of the first concave pressure wheel, and a first end of the first concave wheel screw shaft is connected to the driving module, so as to drive the first concave pressure wheel to move along a first direction; Wherein, the first cam screw shaft and the first cam screw shaft are hollow shafts.

3. The device according to claim 2, characterized in that The device also includes: A second cam screw shaft, disposed on the central axis of the second convex-shaped wheel, a second end of the second cam screw shaft connected to the second end of the first cam screw shaft, and a first end of the second cam screw shaft connected to the driving module; and The second cam screw shaft is arranged on the central axis of the second concave pressure wheel, the second end of the second cam screw shaft is connected to the second end of the first cam screw shaft, and the first end of the second cam screw shaft is connected to the driving module.

4. The device according to claim 2, characterized in that The device further comprises a first positioning assembly for adjusting the position of the first convex profiling wheel in the first direction, the first positioning assembly comprising: A first output member connected to the supporting module comprises a first cylinder and a first electromagnetic head, wherein the first cylinder drives the first electromagnetic head to fit the first reflecting member; and A first reflecting member is disposed at one end of the first convex pressure wheel close to the first output member, and is used for locking or unlocking the first convex pressure wheel and the first cam screw shaft.

5. The device according to claim 4, characterized in that The first reflective member comprises: A first magnetic conductive plate, arranged corresponding to the first electromagnetic head; A first wedge is configured as a triangular cylindrical wedge, and when the first electromagnetic head is in contact with the first magnetic conductive plate, the first wedge moves along a second direction to be in contact with the first magnetic conductive plate; and The first positioning pin abuts against the first wedge and moves along the second direction with the first wedge.

6. The device according to claim 5, characterized in that The opposing surfaces of the first wedge and the first positioning pin are complementary inclined surfaces.

7. The device according to claim 5, characterized in that The first cam screw shaft is evenly provided with first positioning grooves in the circumference thereof, and the first positioning grooves are matched with the first positioning pins.

8. The device according to claim 1, characterized in that The support module comprises: A first vertical screw rod, wherein the first end of the first vertical screw rod is connected to the supporting module, and the second end of the first vertical screw rod is connected to the driving module; the first vertical screw rod is used to adjust the position of the first convex pressure wheel in the second direction.

9. The device according to claim 2, characterized in that The support module also includes: A first bearing seat, having a first mounting hole for passing the first cam screw shaft; and The first support plate is connected to the first bearing seat and is used to support the first cam screw shaft and the first drive motor.

10. The device according to claim 9, characterized in that A first deep groove ball bearing is disposed in the first mounting hole, and an inner ring of the first deep groove ball bearing is tightly matched with the first cam screw shaft.

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