An end flaring device for the production of cable protection pipes

Abstract

An end flaring device for the production of cable protection pipes, belonging to the technical field of protection pipe production, used for flaring the ends of protection pipes, including a box body and a controller, the controller is arranged at the top of the side wall of the box body, and further includes: a limit guiding component, a first flaring component and a second flaring component, the limit guiding component is installed on the upper surface of the box body, and the limit guiding component includes an inner support chamber; four groups of the first flaring components are circumferentially arranged at equal intervals. The present invention can perform a uniform outward expansion and inner support action on the port of the protection pipe, so that during a single operation of the equipment, the circumferential flaring processing of the port of the protection pipe can be directly completed. This process does not require manual rotation to adjust the flaring angle, effectively avoiding the problem of uneven flaring of the protection pipe caused by manual adjustment; for the protection pipe processed by the flaring of the present invention, the circumferential force is balanced, and it can ensure that the edge thickness is consistent after the protection pipe is flared.

Description

Technical Field

[0001] The invention belongs to the technical field of protective tube production, and particularly relates to an end expanding device for producing cable protective tubes. Background Art

[0002] In power cable installation projects, protective tubes are typically placed around the cables for protection. However, given the often long lengths of power cables, and the limitations of manufacturing processes, transportation conditions, and on-site installation, the standard length of protective tubes is relatively limited. Therefore, in practical engineering, multiple protective tubes are often used in conjunction to meet the demands of long-distance cable installation. To ensure good sealing and mechanical stability between the multiple protective tubes, one end of each tube is flared during production. During actual installation, construction workers can precisely insert the non-flared end of one protective tube into the flared end of another, creating a reliable connection.

[0003] Reference Figure 19 and Figure 20 As shown in the figure, current cable protection tube end flaring operations typically utilize a pliers-like tool with a C-shaped flaring structure. During the flaring operation, the C-shaped flare is first inserted into the inner cavity of the cable protection tube end. Initially, the two C-shaped flares apply outward force to prop the tube end open. Subsequently, the two C-shaped flares are rotated 90 degrees within the tube, and then force is applied inward again to prop it up. This completes the circumferential, internally supported flaring process for the tube end.

[0004] However, using this method to flare the ends of cable protection tubes requires two separate flaring operations, preventing the circumferential expansion of the tube ends from being achieved in a single operation. Because the flaring process relies heavily on manual labor, it's difficult for operators to consistently apply consistent force, and it's also difficult to precisely rotate the C-shaped flare angle. These factors hinder the uniformity of the tube flaring process, leading to inconsistent wall thickness. This uneven wall thickness can negatively impact the stability of subsequent connections between multiple tubes, reducing the reliability and sealing of the connections. Summary of the Invention

[0005] In view of the problems in the prior art that when flaring the port of a cable protection pipe in the existing manner, the flaring operation needs to be carried out twice successively, and the circumferential flaring of the protection pipe port cannot be directly achieved in a single operation. Moreover, it seriously relies on manual operation, resulting in the uniformity of the flaring of the protection pipe port not being effectively guaranteed, and the problem of inconsistent wall thickness at the port is likely to occur. The present invention provides an end flaring device for the production of cable protection pipes, which can complete the circumferential flaring of the protection pipe end in a single operation without manual angle adjustment, making the circumferential force on the port after flaring balanced and the edge thickness consistent, and ensuring the connection stability and sealing performance. The specific technical solution is as follows:

[0006] An end flaring device for the production of cable protection pipes, which is used for flaring the end of a protection pipe, includes a box body and a controller. The controller is arranged at the top of the side wall of the box body. It further includes: a limit guiding component, a first flaring component and a second flaring component. The limit guiding component is installed on the upper surface of the box body, and the limit guiding component includes an inner support chamber; Four groups of the first flaring components are arranged equidistantly along the circumference; Four groups of the second flaring components are arranged equidistantly along the circumference, and the second flaring components and the first flaring components are arranged alternately and spaced apart along the circumference;

[0007] Among them, the first flaring component and the second flaring component are divided into an inner support state and a retracted state: in the inner support state, the first flaring component and the second flaring component form an annular inner support structure at the inner support chamber, and the diameter of the annular inner support structure is larger than the diameter of the protection pipe, and the protection pipe is flared at the annular inner support structure; In the retracted state, the first flaring component and the second flaring component are retracted into the inner cavity of the limit guiding component and the inner support chamber.

[0008] In the above technical solution, the limit guiding component further includes: a fixed seat, a first hollow cylinder, a first mounting plate, a guiding column body, a guiding groove, a second mounting plate and a second hollow cylinder. The fixed seat is fixedly installed on the upper surface of the box body; The first hollow cylinder is fixedly installed on the fixed seat, and the front edge of the first hollow cylinder extends out of the front side wall of the box body; The first mounting plate is fixedly installed at the rear side of the inner cavity of the first hollow cylinder; The guiding column body is vertically and fixedly installed on the front side wall of the first mounting plate; Eight groups of guiding grooves are provided, and the eight groups of guiding grooves are opened equidistantly along the circumference on the side wall circumference of the guiding column body; The second mounting plate is vertically and fixedly installed at the front end of the guiding column body; The second hollow cylinder is fixedly installed on the outside of the second mounting plate;

[0009] Among them, the centers of the first hollow cylinder, the first mounting plate, the center point of the guiding column body, the center of the second mounting plate, and the center of the second hollow cylinder are all located on the same central axis. The first hollow cylinder and the second hollow cylinder are separately arranged to form the inner support chamber.

[0010] In the above technical solution, it further includes a first flaring unit. The first flaring unit includes: a first support plate, a first supporting seat, a first hydraulic cylinder, a disc, a first driving rod, a first connecting seat, a first linkage rod, and a second connecting seat. The first support plate is vertically and fixedly installed on the upper surface of the box body; the first supporting seat is vertically and fixedly installed at the top of the first support plate, and the rear end of the first supporting seat is fixedly connected to the top of the first support plate; the first hydraulic cylinder is installed on the first supporting seat; the disc is connected to the output end of the first hydraulic cylinder; there are four groups of the first driving rods, and the four groups of the first driving rods are vertically installed on the front side wall of the disc, and the four groups of the first driving rods are equidistantly arranged in the circumferential direction; the first connecting seat is fixedly connected to the front end of the first driving rod, and the first connecting seat is slidably embedded in the inner cavity of the guiding groove; one end of the first linkage rod is rotatably connected to the first connecting seat; the second connecting seat is rotatably connected to the other end of the first linkage rod, and the second connecting seat is connected to the first flaring assembly;

[0011] Among them, the first linkage rod is inclined between the second connecting seat and the first connecting seat.

[0012] In the above technical solution, the first flaring assembly includes: a first flaring block, a first front guiding block, and a first rear guiding block. The first flaring block is fixedly connected to the second connecting seat, and the outer side wall of the first flaring block is set as a smooth arc; the first front guiding block and the first rear guiding block are respectively fixedly installed at the front and rear ends of the first flaring block, and the first front guiding block and the first rear guiding block are arranged corresponding to each other in the front and rear directions with respect to the first flaring block;

[0013] Among them, the cross-sectional view of the first flaring block, the first front guiding block, and the first rear guiding block in the front and rear directions is trapezoidal.

[0014] In the above technical solution, a second flaring unit is further included. The second flaring unit includes: a second support plate, a second supporting seat, a second hydraulic cylinder, a U-shaped driving frame, a supporting seat, an annular disc, a second driving rod, a third connecting seat, a second linkage rod, and a fourth connecting seat. The second support plate is vertically and fixedly installed on the upper surface of the box body; the second supporting seat is vertically and fixedly installed at the top of the second support plate; the second hydraulic cylinder is installed on the second supporting seat; the U-shaped driving frame is connected to the output end of the second hydraulic cylinder, and the U-shaped driving frame is set in a U shape; the supporting seat is vertically and fixedly installed on the upper surface of the box body, and the U-shaped driving frame slidably penetrates through the side wall of the supporting seat; the annular disc is fixedly connected to the front end of the U-shaped driving frame, and the annular disc is provided with a hollow inner cavity; four groups of the second driving rods are provided, and the four groups of the second driving rods are vertically installed on the front side wall of the annular disc, and the four groups of the second driving rods are equidistantly arranged in the circumferential direction; the third connecting seat is fixedly connected to the front end of the second driving rod, and the third connecting seat is slidably embedded in the inner cavity of the guiding groove; one end of the second linkage rod is rotatably connected to the third connecting seat; the fourth connecting seat is rotatably connected to the other end of the second linkage rod, and the fourth connecting seat is connected to the first flaring assembly;

[0015] Wherein, the second linkage rod is inclined between the third connecting seat and the fourth connecting seat.

[0016] In the above technical solution, the diameter of the hollow inner cavity of the annular disc is larger than the diameter of the disc.

[0017] In the above technical solution, the second flaring assembly includes: a second flaring block, a second front guiding block, and a second rear guiding block. The second flaring block is fixedly connected to the fourth connecting seat, and the outer side wall of the second flaring block is set to a smooth arc shape; the second front guiding block and the second rear guiding block are respectively fixedly installed at the front and rear ends of the second flaring block, and the second front guiding block and the second rear guiding block are arranged corresponding to each other in the front and rear directions with respect to the second flaring block;

[0018] Wherein, the cross-sectional view in the front and rear directions of the second flaring block, the second front guiding block, and the second rear guiding block is trapezoidal.

[0019] In the above technical solution, in the inner support state, the shape of the second front guiding block is adapted to the shape of the space between two adjacent first front guiding blocks, the shape of the second flaring block is adapted to the shape of the space between two adjacent first flaring blocks, and the shape of the second rear guiding block is adapted to the shape of the space between two adjacent first rear guiding blocks.

[0020] In the above technical solution, a conveying unit is further included. The conveying unit includes two sets of conveying components. The two sets of conveying components are symmetrically arranged left and right with the protective tube as the center. Each set of conveying components includes: a third support plate, a top plate, a first through groove, a second through groove, a connecting rod, an arc plate, a first blind groove, a second blind groove, a connecting piece and a limit pin. The third support plate is vertically and fixedly installed on the upper surface of the box body; the top plate is vertically and fixedly installed at the top end of the front side wall of the third support plate; the first through groove and the second through groove are both vertically formed in the top plate. The first through groove and the second through groove are communicated with each other, and the first through groove is inclined relative to the second through groove; the connecting rod is vertically and slidably arranged in the inner cavities of the first through groove and the second through groove; the arc plate is fixedly installed at the bottom end of the connecting rod, and the arc plate is arranged in an arc shape; the first blind groove and the second blind groove are both formed on the upper surface of the top plate. The first through groove and the second blind groove are communicated with each other, and the first blind groove is inclined relative to the second blind groove. The first blind groove is parallel to the first through groove, and the second blind groove is parallel to the second through groove; the connecting piece is fixedly installed at the top end of the connecting rod; the limit pin is vertically and fixedly installed on the lower surface of the connecting piece, and the limit pin is slidably arranged in the inner cavities of the first blind groove and the second blind groove.

[0021] In the above technical solution, the conveying unit further includes a driving component. The driving component includes: a moving frame, a fixing plate, a third supporting seat and a third hydraulic cylinder. The moving frame is slidably sleeved on the connecting rod, and the moving frame moves in the front-rear direction along the upper surface of the top plate; the fixing plate is fixedly installed on the side wall of the top plate; the third supporting seat is fixedly installed on the rear side wall of the fixing plate; the third hydraulic cylinder is installed on the third supporting seat, and the output end of the third hydraulic cylinder is fixedly connected to the moving frame.

[0022] Compared with the prior art, the beneficial effects of an end flaring device for producing a cable protection tube according to the present invention are as follows:

[0023] 1. When flaring the port of a cable protection pipe using the existing method, it is necessary to perform the flaring operation twice successively. It is impossible to directly achieve the circumferential flaring of the protection pipe port in a single operation, and it highly relies on manual operation, resulting in the inability to effectively guarantee the uniformity of the flaring of the protection pipe port and prone to problems such as inconsistent wall thickness at the port. With the help of the first flaring block body, the first front guiding block body, and the first rear guiding block body components that expand and support outward, and the second flaring block body, the second front guiding block body, and the second rear guiding block body components that also expand and support outward, they can cooperate with each other to perform a uniform outward expansion and internal support action on the port of the protection pipe, thereby directly completing the circumferential flaring processing of the protection pipe port during a single operation of the equipment. This process does not require manual rotation to adjust the flaring angle, effectively avoiding the problem of uneven flaring of the protection pipe caused by manual adjustment; after the protection pipe is flared by the present invention, its circumferential force is balanced, ensuring that the edge thickness is consistent after the protection pipe is flared, laying a solid foundation for the stability of the connection between multiple subsequent protection pipes, and effectively guaranteeing the reliability and tightness of the connection part of the protection pipe;

[0024] 2. In the present invention, four groups of the first flaring block body, the first front guiding block body, and the first rear guiding block body, as well as four groups of the second flaring block body, the second front guiding block body, and the second rear guiding block body, which are evenly distributed and arranged in the circumferential direction, can perform an internal support type flaring processing operation on the port of the protection pipe at equal circumferential intervals, thereby ensuring that during the flaring process of the port of the protection pipe, each part can receive an internal support force with equal magnitude and evenly outward direction, without the need to adjust the angle of the flaring tool or component, effectively avoiding the flaring deviation caused by manually adjusting the angle of the flaring tool and avoiding the problems of repeated flaring or insufficient flaring in some positions of the protection pipe, greatly improving the quality and accuracy of the flaring processing;

[0025] 3. In the traditional flaring method, due to the manual flaring method or the setting defect that the flaring tool cannot fully fit the inner wall of the protection pipe after internal support, it is easy to cause the port shape of the protection pipe to be irregular or the port thickness to be inconsistent, which easily leads to the problem that the protection pipe cannot achieve a tight and effective fit when connecting with other cable protection pipes. In the present invention, the four groups of the first flaring block body and the four groups of the second flaring block body are arranged at intervals in the circumferential direction. When performing an internal support operation on the port of the protection pipe, the above components can build a closed annular internal support structure, ensuring that when performing the internal support flaring operation on the protection pipe, it can achieve a full - range and gap - free internal support fit with the inner wall of the protection pipe port. Thus, after the flaring process is completed, the protection pipe port presents a circular shape with uniform thickness, effectively guaranteeing the shape accuracy and dimensional stability of the protection pipe port, providing a solid guarantee for its reliable connection with other protection pipes, and further ensuring the integrity and functionality of the entire cable protection pipe system;

[0026] IV. In the present invention, with the drive of the first hydraulic cylinder and the cooperation of the limit guiding assembly, the four groups of first flaring blocks, first front guiding blocks, and first rear guiding blocks can be evenly and synchronously pushed outwards and inwards. With the drive of the second hydraulic cylinder and the cooperation of the limit guiding assembly, the four groups of second flaring blocks, second front guiding blocks, and second rear guiding blocks can be evenly and synchronously pushed outwards and inwards. Thus, the present invention not only ensures circumferentially uniform inwards flaring operation on the port of the protection pipe, realizes high-precision and high-consistency flaring, effectively avoids the problem of port quality defects caused by uneven flaring, which affects the connection stability of the protection pipe, but also the two driving methods can operate in parallel without interfering with each other, and the circumferential flaring operation of the protection pipe can be completed at one time without adjusting the direction of the flaring tool, effectively overcoming the deficiencies in operation coordination and precision of traditional flaring technologies, ensuring that the equipment can efficiently complete the flaring of a large number of protection pipe ports in a short time, greatly meeting the needs of large-scale construction, and providing a more efficient solution for the industrialized flaring processing of cable protection pipes;

[0027] V. In the present invention, through the split design of the first hollow cylinder and the second hollow cylinder, an inner supporting chamber is formed, which provides precise positioning for the circumferential equidistant interval distribution of the four groups of first flaring blocks and the four groups of second flaring blocks, and ensures that the first flaring blocks and the second flaring blocks after inner support in this positioning space can form an effective annular inner support structure. At the same time, it provides guiding and limiting for the retraction of the four groups of first flaring blocks and the four groups of second flaring blocks, ensuring that the four groups of first flaring blocks and the four groups of second flaring blocks can be smoothly retracted to disengage from the inner wall of the port of the flared protection pipe, realizing the smooth disassembly of the flared protection pipe;

[0028] VI. In the present invention, through the setting of components such as the guiding column body and the guiding groove, in the same system, precise and stable guiding and limiting functions can be provided for the first flaring unit and the second flaring unit during the process of achieving the inner support state and the retraction state. Thus, the present invention can ensure the independent operation of the first flaring unit and the second flaring unit, and they can independently play their functions without any interference with each other, effectively maintaining the efficient and stable operation of the entire system, and also effectively avoiding the problem of space occupation caused by separately configuring independent guiding and limiting components for the first flaring unit and the second flaring unit, significantly improving the space utilization rate inside the equipment, optimizing the overall structural space layout of the equipment, and realizing a more compact and efficient space setting;

[0029] VII. In the present invention, with the setting of the annular disk with a hollow inner cavity, it can ensure the normal displacement of the annular disk and the disk in the same direction without being hindered and interfered, so as to complete the operation requirements of circumferential inner flaring processing of the protection pipe port on the premise of ensuring the independent operation of the second flaring unit and the first flaring unit without interference, and ensuring the precise progress of the entire flaring processing process;

[0030] 8. In the traditional operation mode, when docking the port of the protection tube with the flaring tool, it is usually manually operated to complete the insertion and placement. However, since it is difficult to ensure the accuracy of the insertion angle by manual operation, it is very easy to cause the port of the protection tube to be skewed when docking with the flaring tool. During the subsequent flaring process, this skew will cause the flared part of the protection tube to deviate from the ideal position of the port of the protection tube, and ultimately the circumferential uniform flaring of the port of the protection tube cannot be achieved, affecting the flaring quality and the subsequent connection performance of the product. To address the above defects, the present invention provides two sets of arc-shaped plates that can move towards each other. By precisely supporting and limiting the port of the protection tube with the two sets of arc-shaped plates, it can ensure that the port of the protection tube always maintains a vertical state when entering the subsequent flaring station, effectively avoiding the occurrence of port skew problems, and ensuring that the flared part is accurately aligned with the port of the protection tube without skew, providing a reliable prerequisite for realizing the circumferential uniform flaring operation of the port of the protection tube to ensure the accuracy and quality of the flaring operation;

[0031] 9. In the present invention, the moving frame can drive the displacement of the connecting rod and the limit pin to achieve the continuous operation of supporting and limiting the port of the protection tube and sending it to the flaring station. That is, the present invention adopts a single power driving mechanism, which can complete two key action processes in one go: First, it causes the two sets of arc-shaped plates to move towards each other, thereby implementing the operation of supporting and limiting the port of the protection tube to ensure that the port of the protection tube is accurately positioned at the initial position. Second, under the continuous drive of the moving frame, it pushes the protection tube to accurately fit into the flaring station in a vertical posture; the above operation process can be completed with only a single power source without relying on two different driving powers. It not only meets the process requirements that the protection tube must enter the flaring station in a vertical state to ensure the high precision of the flaring operation, but also effectively avoids problems such as poor action connection and coordination caused by using two driving powers by reducing the number of power sources, ensuring the smoothness and stability of the equipment operation. Moreover, the two sets of arc-shaped plates under the same power source can ensure the unified symmetrical movement to ensure the accuracy of limiting and pushing the protection tube;

[0032] 10. In the present invention, through the setting of the first through groove and the second through groove, it can cause the two sets of arc-shaped plates to first move towards each other and then push the protection tube to the flaring station in a vertical state. By setting the connecting piece, the first blind groove and the second blind groove, it can limit the moving direction of the connecting rod to ensure that the connecting rod does not rotate when moving along the inner cavities of the first through groove and the second through groove. Thus, it ensures that the protection tube limited by the two connecting rods can be stably and vertically pushed to the flaring station, providing a guarantee for the accurate operation of the subsequent flaring operation and effectively avoiding the flaring quality problems caused by the movement deviation of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1Schematic structural diagram of the end flaring device for cable protection pipe production in Embodiment 1 of the present invention;

[0034] Figure 2 Schematic structural diagram of the protection pipe after flaring processing in Embodiment 1 of the present invention;

[0035] Figure 3 Front view structural diagram of Embodiment 1 of the present invention;

[0036] Figure 4 Schematic structural diagram of the limit guiding assembly in Embodiment 1 of the present invention;

[0037] Figure 5 Exploded view of the limit guiding assembly in Embodiment 1 of the present invention;

[0038] Figure 6 Schematic structural diagram of the first front guiding block in Embodiment 1 of the present invention;

[0039] Figure 7 Schematic structural diagram of the first mounting plate in Embodiment 1 of the present invention;

[0040] Figure 8 Schematic structural diagram of the first flaring block in Embodiment 1 of the present invention;

[0041] Figure 9 Schematic structural diagram of the second flaring block in Embodiment 1 of the present invention;

[0042] Figure 10 Schematic structural diagram of the first flaring unit in Embodiment 1 of the present invention;

[0043] Figure 11 Schematic structural diagram of the second flaring unit in Embodiment 1 of the present invention;

[0044] Figure 12 Cross-sectional structural diagram of the second flaring block in Embodiment 1 of the present invention;

[0045] Figure 13 Front view structural diagram of the second front guiding block in Embodiment 1 of the present invention;

[0046] Figure 14 Schematic structural diagram of the feeding unit in Embodiment 1 of the present invention;

[0047] Figure 15 Top view structural diagram of the feeding unit in Embodiment 1 of the present invention;

[0048] Figure 16 Schematic structural diagram of the end flaring device for cable protection pipe production in Embodiment 2 of the present invention;

[0049] Figure 17Schematic structural diagram of the disc in Embodiment 2 of the present invention;

[0050] Figure 18 Schematic structural diagram of the annular disc in Embodiment 2 of the present invention;

[0051] Figure 19 Schematic structural diagram of a C-type flaring tool in the existing market;

[0052] Figure 20 Physical diagram of flaring the protection tube with a C-type flaring tool in the existing market;

[0053] Figures 1 to 18 In the figure, 1, box body; 2, controller; 3, limit guiding component, 3001, fixed seat, 3002, first hollow cylinder, 3003, first mounting plate, 3004, guiding column body, 3005, guiding groove, 3006, second mounting plate, 3007, second hollow cylinder; 4, first flaring unit, 4001, first support plate, 4002, first supporting seat, 4003, first hydraulic cylinder, 4004, disc, 4005, first driving rod, 4006, first connecting seat, 4007, first linkage rod, 4008, second connecting seat, 4009, first flaring block, 4010, first front guiding block, 4011, first rear guiding block; 5, second flaring unit, 5001, second support plate, 5002, second supporting seat, 5003, second hydraulic cylinder, 5004, U-shaped driving frame, 5005, support seat, 5006, annular disc, 5007, second driving rod, 5008, third connecting seat, 5009, second linkage rod, 5010, fourth connecting seat, 5011, second flaring block, 5012, second front guiding block, 5013, second rear guiding block; 6, protection tube; 7, feeding unit, 7001, third support plate, 7002, top plate, 7003, first through groove, 7004, second through groove, 7005, connecting rod, 7006, arc plate, 7007, first blind groove, 7008, second blind groove, 7009, connecting piece, 7010, limit pin, 7011, moving frame, 7012, fixing plate, 7013, third supporting seat, 7014, third hydraulic cylinder. Detailed implementation manners

[0054] The following further illustrates the present invention in conjunction with specific implementation cases and attached Figures 1 to 18 However, the present invention is not limited to these embodiments.

[0055] Embodiment 1

[0056] Refer to Figures 1 to 15As shown in the figure, an end flaring device for the production of cable protection pipes is used to flare the ends of the protection pipes 6. It includes a box body 1 and a controller 2. The box body 1 provides support for the installation of other components, and the inner cavity of the box body 1 can be used for assembling the supporting electronic control system of electrical components. The controller 2 is arranged at the top of the side wall of the box body 1. The controller 2 adopts a commonly used controller model in the market. It is a programmable memory that stores instructions for performing operations such as logical operations, sequential control, timing, counting, and arithmetic operations inside it, and controls various types of mechanical equipment or production processes through digital or analog inputs and outputs. In this embodiment, through the controller 2, each electrically connected component can receive and control corresponding instructions, which is common prior art, and its model and other situations will not be elaborated here; This solution also includes: a limit guiding component 3, a first flaring component, and a second flaring component. The limit guiding component 3 is installed on the upper surface of the box body 1, and the limit guiding component 3 includes an inner support chamber. The protection pipe 6 is internally supported at the inner support chamber of the limit guiding component 3 to achieve flaring processing; Four groups of the first flaring components are circumferentially arranged at equal intervals; Four groups of the second flaring components are circumferentially arranged at equal intervals, and the second flaring components and the first flaring components are alternately arranged at intervals in the circumferential direction. With the cooperation of the first flaring component and the second flaring component, the protection pipe 6 is internally supported and flared at the inner support chamber of the limit guiding component 3;

[0057] Among them, the first flaring component and the second flaring component are divided into an inner support state and a retracted state: In the inner support state, the first flaring component and the second flaring component form an annular inner support structure at the inner support chamber, and the diameter of the annular inner support structure is larger than the diameter of the protection pipe 6, so as to ensure that the annular inner support structure can flare the port of the protection pipe 6 into a diameter larger than the diameter of the protection pipe 6 itself, and the protection pipe 6 is flared at the annular inner support structure; In the retracted state, the first flaring component and the second flaring component retract into the inner cavity of the limit guiding component 3 and the inner support chamber. In this state, the protection pipe 6 can be smoothly sleeved on the annular inner support structure at the limit guiding component 3, which provides convenience for the feeding of the protection pipe 6 and subsequent flaring operations.

[0058] With the aid of the first flaring component that expands and internally supports outward, and the second flaring component that also expands and internally supports outward, the present invention can cooperate with each other to perform a uniform outward expansion and internal support action on the port of the protection pipe 6, so as to directly complete the circumferential flaring processing of the port of the protection pipe 6 during a single operation of the equipment. Different from the traditional flaring method, the present invention does not require manual rotation to adjust the flaring angle, effectively avoiding the problem of uneven flaring of the protection pipe 6 caused by manual operation deviation. After the port of the protection pipe 6 is flared by the present invention, the circumferential force is uniform, ensuring that the edge thickness is consistent after flaring, providing a stable and reliable basis for the connection between multiple subsequent protection pipes, and effectively guaranteeing the reliability and sealing performance of the connection part of the protection pipe, improving the overall performance of the cable protection pipe system.

[0059] In addition, in the traditional method, manual adjustment of the angle is likely to cause repeated flaring or insufficient flaring at some positions of the protective tube 6. To address this problem, the first flaring assembly and the second flaring assembly of the present invention are evenly distributed along the circumferential direction. When flaring the port of the protective tube 6, an inner support operation with equal circumferential spacing can be achieved; during the entire flaring process, this layout enables each part of the port of the protective tube 6 to receive an inner support force with the same magnitude and evenly outward direction. During the processing, there is no need to adjust the angle of the flaring tool or components, thereby avoiding the flaring deviation caused by manual angle adjustment and improving the quality and accuracy of the flaring process.

[0060] Furthermore, in the traditional flaring method, manual flaring is prone to errors, and the inner support of the flaring tool cannot fully fit the inner wall of the protective tube 6, resulting in an irregular shape and uneven thickness of the port of the protective tube 6, making it difficult to closely cooperate when connecting with other cable protective tubes. However, in the present invention, four groups of first flaring assemblies and four groups of second flaring assemblies are distributed at intervals along the circumference. During the inner support operation, a closed annular inner support structure can be constructed, which fits the inner wall of the port of the protective tube 6 in all directions without gaps. After flaring, the port of the protective tube 6 is in the shape of a ring with uniform thickness, ensuring the shape accuracy and dimensional stability, and enabling reliable connection with other protective tubes to ensure the integrity and functionality of the entire cable protective tube system.

[0061] For main reference Figure 4 、 Figure 5 and Figure 7As shown in the figure, in the present invention, the limit guiding assembly 3 further includes: a fixed seat 3001, a first hollow cylinder 3002, a first mounting plate 3003, a guiding column body 3004, a guiding groove 3005, a second mounting plate 3006 and a second hollow cylinder 3007. The fixed seat 3001 is fixedly installed on the upper surface of the box body 1; the first hollow cylinder 3002 is fixedly installed on the fixed seat 3001, and the front edge of the first hollow cylinder 3002 extends out of the front side wall of the box body 1. The fixed seat 3001 provides support for the installation of the first hollow cylinder 3002, and the front edge of the first hollow cylinder 3002 extends forward relative to the box body 1, which can provide sufficient space for the subsequent protective tube 6 to be sleeved in front of the first hollow cylinder 3002; the first mounting plate 3003 is fixedly installed on the rear side of the inner cavity of the first hollow cylinder 3002; the guiding column body 3004 is vertically and fixedly installed on the front side wall of the first mounting plate 3003. The first mounting plate 3003 can not only seal the rear side of the inner cavity of the first hollow cylinder 3002, but also provide support for the installation of the guiding column body 3004; there are eight groups of guiding grooves 3005, and the eight groups of guiding grooves 3005 are circumferentially and equidistantly arranged on the circumferential side wall of the guiding column body 3004; the second mounting plate 3006 is vertically and fixedly installed at the front end of the guiding column body 3004, and the second mounting plate 3006 provides support for the installation of the guiding column body 3004; the second hollow cylinder 3007 is fixedly installed on the outer side of the second mounting plate 3006; wherein, the centers of the first hollow cylinder 3002, the first mounting plate 3003, the center point of the guiding column body 3004, the center of the second mounting plate 3006, and the center of the second hollow cylinder 3007 are all located on the same central axis. The guiding column body 3004 is fixedly connected between the first mounting plate 3003 and the second mounting plate 3006, which ensures that the second hollow cylinder 3007 and the first hollow cylinder 3002 can be stably connected under the connection action of the guiding column body 3004. The first hollow cylinder 3002 and the second hollow cylinder 3007 are separately arranged to form an inner support chamber. At this inner support chamber, the first flaring assembly and the second flaring assembly complete the inner support and flaring processing of the protective tube 6.

[0062] Through the split design of the first hollow cylinder 3002 and the second hollow cylinder 3007, an inner support chamber is formed, which provides precise limit for the subsequent four groups of first flaring assemblies and four groups of second flaring assemblies to be circumferentially and equidistantly spaced. And it ensures that the first flaring assembly and the second flaring assembly after inner support can form an effective annular inner support structure at this limit space. At the same time, it provides guiding limit for the subsequent retraction of the four groups of first flaring assemblies and four groups of second flaring assemblies, ensuring that the four groups of first flaring assemblies and four groups of second flaring assemblies can be smoothly retracted to disengage from the inner wall of the port of the flared protective tube 6, realizing the smooth disassembly of the flared protective tube 6.

[0063] Mainly refer to Figures 6 to 10As shown in the figure, the present invention further includes a first flaring unit 4, and the first flaring unit 4 includes: a first support plate 4001, a first supporting seat 4002, a first hydraulic cylinder 4003, a disc 4004, a first driving rod 4005, a first connecting seat 4006, a first linkage rod 4007 and a second connecting seat 4008. The first support plate 4001 is vertically and fixedly installed on the upper surface of the box body 1; the first supporting seat 4002 is vertically and fixedly installed at the top of the first support plate 4001, and the rear end of the first supporting seat 4002 is fixedly connected to the top of the first support plate 4001, thereby ensuring that there is enough space below the first supporting seat 4002 for other components to move; the first hydraulic cylinder 4003 is installed on the first supporting seat 4002; the disc 4004 is connected to the output end of the first hydraulic cylinder 4003, and the movement of the output end of the first hydraulic cylinder 4003 can drive the disc 4004 to move in the corresponding direction; there are four groups of first driving rods 4005, and the four groups of first driving rods 4005 are vertically installed on the front side wall of the disc 4004, and the four groups of first driving rods 4005 are equidistantly arranged in the circumferential direction. When the disc 4004 moves, it can drive the four groups of first driving rods 4005 to displace synchronously; the first connecting seat 4006 is fixedly connected to the front end of the first driving rod 4005, and the first connecting seat 4006 is slidably embedded in the inner cavity of the guiding groove 3005. The movement of the first driving rod 4005 can drive the first connecting seat 4006 to move along the inner cavity of the guiding groove 3005; one end of the first linkage rod 4007 is rotatably connected to the first connecting seat 4006 through a pin shaft; the second connecting seat 4008 is rotatably connected to the other end of the first linkage rod 4007 through a pin shaft, and the second connecting seat 4008 is connected to the first flaring assembly. By the movement of the first connecting seat 4006 along the inner cavity of the guiding groove 3005, the first linkage rod 4007, the second connecting seat 4008 and the first flaring assembly are driven to move synchronously; wherein, the first linkage rod 4007 is inclined between the second connecting seat 4008 and the first connecting seat 4006, ensuring that after the first linkage rod 4007 drives the second connecting seat 4008 to complete the inner support of the protection tube 6, the second connecting seat 4008 can still be directly reset along the original path under the action of the first linkage rod 4007.

[0064] Specifically, mainly refer to Figure 10As shown in the figure, the first flaring assembly includes: a first flaring block 4009, a first front guiding block 4010, and a first rear guiding block 4011. The first flaring block 4009 is fixedly connected to the second connecting seat 4008, and the outer side wall of the first flaring block 4009 is set to be a smooth arc, so as to ensure that after the inner wall of the protection tube 6 is internally supported and flared at this place subsequently, the inner wall of the protection tube 6 is still a smooth arc, thereby ensuring the uniformity and smoothness of the inner wall of the protection tube 6 after the flaring is completed; the first front guiding block 4010 and the first rear guiding block 4011 are respectively fixedly installed at the front and rear ends of the first flaring block 4009, and the first front guiding block 4010 and the first rear guiding block 4011 are arranged corresponding to each other in the front and rear directions with respect to the first flaring block 4009; wherein, the cross-sectional view of the first flaring block 4009, the first front guiding block 4010, and the first rear guiding block 4011 in the front and rear directions is trapezoidal, thereby ensuring that the outer side wall of the first front guiding block 4010 departing from the first flaring block 4009 is an inclined end face, ensuring that under the action of the external force for external support subsequently, the second hollow cylinder 3007 can drive the first front guiding block 4010 to be forced to expand outwards along the edge of the second hollow cylinder 3007, and the outer side wall of the first rear guiding block 4011 departing from the first flaring block 4009 is also an inclined end face, ensuring that under the action of the external force for recovery subsequently, the first hollow cylinder 3002 can drive the first rear guiding block 4011 to be forced to retract into the inner cavity of the first hollow cylinder 3002 along the edge of the first hollow cylinder 3002; that is, through the inclined end faces of the first front guiding block 4010 and the first rear guiding block 4011, in cooperation with the first flaring block 4009, a common body with a trapezoidal cross-section is formed, facilitating the first flaring assembly to form an internal support state or a retracted state between the first hollow cylinder 3002 and the second hollow cylinder 3007.

[0065] Specifically, when the inclined end face of the first front guiding block 4010 touches the rear side edge of the second hollow cylinder 3007, under the pushing action of the continuously forward moving first driving rod 4005, it is urged that the first front guiding block 4010 always fits and moves along the rear side edge of the second hollow cylinder 3007, and then the first linkage rod 4007 drives the second connecting seat 4008 to extend outwards, that is, under the limiting action of the rear side wall edge of the second hollow cylinder 3007, four groups of first flaring blocks 4009 are urged to expand equidistantly outwards, forming four groups of arc-shaped internal support structures arranged at intervals with a smooth outer side wall. During this process, the four groups of first flaring blocks 4009 that expand outwards drive the protection tube 6 to be forced to expand outwards, realizing the flaring processing of the port of the protection tube 6.

[0066] For main reference Figures 6 to 9 、 Figures 11 to 13As shown in the figure, it further includes a second flaring unit 5, and the second flaring unit 5 includes: a second support plate 5001, a second supporting seat 5002, a second hydraulic cylinder 5003, a U-shaped driving frame 5004, a support seat 5005, an annular disc 5006, a second driving rod 5007, a third connecting seat 5008, a second linkage rod 5009, and a fourth connecting seat 5010. The second support plate 5001 is vertically and fixedly installed on the upper surface of the box body 1; the second supporting seat 5002 is vertically and fixedly installed at the top of the second support plate 5001; the second hydraulic cylinder 5003 is installed on the second supporting seat 5002; the U-shaped driving frame 5004 is connected to the output end of the second hydraulic cylinder 5003, and the U-shaped driving frame 5004 is set in a U shape; the support seat 5005 is vertically and fixedly installed on the upper surface of the box body 1, and the U-shaped driving frame 5004 slidably penetrates through the side wall of the support seat 5005, providing support for the displacement of the U-shaped driving frame 5004 through the support seat 5005 without affecting the normal movement of the U-shaped driving frame 5004; the annular disc 5006 is fixedly connected to the front end of the U-shaped driving frame 5004, and the annular disc 5006 is provided with a hollow inner cavity; the diameter of the hollow inner cavity of the annular disc 5006 is larger than the diameter of the disc 4004; by means of the setting of the annular disc 5006 with a hollow inner cavity, it can ensure that the annular disc 5006 and the disc 4004 can perform normal displacement in the same direction without being hindered and interfered, so as to complete the operation requirement of the circumferential internal flaring processing of the port of the protection tube 6 on the premise that the second flaring unit 5 and the first flaring unit 4 operate independently without interference, ensuring the precise progress of the entire flaring processing process; there are four groups of second driving rods 5007, and the four groups of second driving rods 5007 are vertically installed on the front side wall of the annular disc 5006, and the four groups of second driving rods 5007 are equidistantly arranged along the circumference; the third connecting seat 5008 is fixedly connected to the front end of the second driving rod 5007, and the third connecting seat 5008 is slidably embedded in the inner cavity of the guide groove 3005; one end of the second linkage rod 5009 is rotatably connected to the third connecting seat 5008 through a pin shaft; the fourth connecting seat 5010 is rotatably connected to the other end of the second linkage rod 5009 through a pin shaft, and the fourth connecting seat 5010 is connected to the first flaring assembly; wherein, the second linkage rod 5009 is inclined between the third connecting seat 5008 and the fourth connecting seat 5010, ensuring that after the second linkage rod 5009 drives the fourth connecting seat 5010 to complete the internal support of the protection tube 6, the fourth connecting seat 5010 can still be directly reset along the original path under the action of the second linkage rod 5009.

[0067] Specifically, mainly refer to Figure 11 and Figure 12As shown in the figure, the second flaring assembly includes: a second flaring block 5011, a second front guiding block 5012, and a second rear guiding block 5013. The second flaring block 5011 is fixedly connected to the fourth connecting seat 5010, and the outer wall of the second flaring block 5011 is set to a smooth arc shape to ensure that after the inner wall of the protection tube 6 is internally supported and flared at this position subsequently, the inner wall of the protection tube 6 remains a smooth arc; the second front guiding block 5012 and the second rear guiding block 5013 are respectively fixedly installed at the front and rear ends of the second flaring block 5011, and the second front guiding block 5012 and the second rear guiding block 5013 are arranged corresponding to each other in the front and rear directions relative to the second flaring block 5011; wherein, the cross-section of the second flaring block 5011, the second front guiding block 5012, and the second rear guiding block 5013 in the front and rear directions is trapezoidal, which is the same as the principle of the trapezoidal design of the cross-section of the first flaring block 4009, the first front guiding block 4010, and the first rear guiding block 4011 in the front and rear directions. Through this setting, it is convenient to realize the inner support state or the retracted state of the second flaring assembly between the first hollow cylinder 3002 and the second hollow cylinder 3007.

[0068] When the second hydraulic cylinder 5003 is started, it will drive the U-shaped driving frame 5004, and then drive the annular disc 5006 to displace forward; during this process, the four groups of second driving rods 5007 installed on the side wall of the annular disc 5006 will respectively slide forward along the inner cavity of the corresponding guiding grooves 3005, so that the four groups of third connecting seats 5008, the second linkage rod 5009, and the fourth connecting seat 5010 move synchronously; until the fourth connecting seat 5010 pushes the inclined end face of the second front guiding block 5012 to contact the rear edge of the second hollow cylinder 3007; as the second driving rods 5007 and the third connecting seats 5008 continue to move forward, it will force the second linkage rod 5009, the fourth connecting seat 5010, and the second flaring block 5011 to extend outward; in view of the fact that the second flaring block 5011 is located at the gap position between two circumferentially adjacent first flaring blocks 4009, so when the second flaring block 5011 extends outward, it can fill the gap between the two adjacent first flaring blocks 4009, and perform the inner support and flaring operation on the port of the protection tube 6 again; finally, the four groups of second flaring blocks 5011 in the inner support state and the four groups of first flaring blocks 4009 in the inner support state together form an annular inner support structure with a smooth arc-shaped outer wall; this annular inner support structure acts on the port of the protection tube 6 to ensure that the second flaring block 5011 and the first flaring block 4009 are in full contact with the inner wall of the port of the protection tube 6 without gaps, so that the port of the protection tube 6 forms a uniform flared shape.

[0069] Specifically, mainly refer to Figure 8 and Figure 13As shown, in the inner support state, the shape of the second front guide block 5012 is adapted to the shape of the space between two adjacent groups of the first front guide blocks 4010, the shape of the second flaring block 5011 is adapted to the shape of the space between two adjacent groups of the first flaring blocks 4009, and the shape of the second rear guide block 5013 is adapted to the shape of the space between two adjacent groups of the first rear guide blocks 4011. When the above components are supported inwardly to the outside, it can ensure that a smooth outer wall annular inner support surface is formed by a plurality of second flaring blocks 5011 and first flaring blocks 4009. After the protection tube 6 is supported inwardly, the thickness of its port remains uniform and smooth.

[0070] In addition, in the present invention, through the arrangement of components such as the guide column 3004 and the guide groove 3005, during the process of achieving the inner support state and the retracted state of the first flaring unit 4 and the second flaring unit 5 in the same system, an accurate and stable guiding and limiting function can be provided. Therefore, the present invention can ensure the respective operations of the first flaring unit 4 and the second flaring unit 5, and each can independently perform its function without any interference with each other, effectively maintaining the efficient and stable operation of the entire system. It also effectively avoids the problem of space occupation caused by separately configuring independent guiding and limiting components for the first flaring unit 4 and the second flaring unit 5, significantly improving the space utilization rate inside the device, optimizing the overall structural space layout of the device, and achieving a more compact and efficient space setting.

[0071] Mainly refer to Figure 1 、 Figure 14 、 Figure 15As shown in the figure, it further includes a conveying unit 7. The conveying unit 7 includes two groups of conveying components, which are symmetrically arranged left and right with the protection tube 6 as the center. Each group of conveying components includes: a third support plate 7001, a top plate 7002, a first through groove 7003, a second through groove 7004, a connecting rod 7005, an arc plate 7006, a first blind groove 7007, a second blind groove 7008, a connecting piece 7009 and a limit pin 7010. The third support plate 7001 is vertically and fixedly installed on the upper surface of the box body 1; the top plate 7002 is vertically and fixedly installed at the top of the front side wall of the third support plate 7001; both the first through groove 7003 and the second through groove 7004 are formed through the top plate 7002, the first through groove 7003 is communicated with the second through groove 7004, and the first through groove 7003 is inclined relative to the second through groove 7004; the connecting rod 7005 is vertically and slidably arranged in the inner cavities of the first through groove 7003 and the second through groove 7004; the arc plate 7006 is fixedly installed at the bottom end of the connecting rod 7005, and the arc plate 7006 is arranged in an arc shape; both the first blind groove 7007 and the second blind groove 7008 are formed on the upper surface of the top plate 7002, the first through groove 7003 is communicated with the second blind groove 7008, and the first blind groove 7007 is inclined relative to the second blind groove 7008, the first blind groove 7007 is parallel to the first through groove 7003, and the second blind groove 7008 is parallel to the second through groove 7004; the connecting piece 7009 is fixedly installed at the top end of the connecting rod 7005; the limit pin 7010 is vertically and fixedly installed on the lower surface of the connecting piece 7009, and the limit pin 7010 is slidably arranged in the inner cavities of the first blind groove 7007 and the second blind groove 7008;

[0072] When loading the protection tube 6 before flaring, manually align the flaring processing part of the protection tube 6 with the two arc plates 7006. When the two arc plates 7006 clamp the side wall of the protection tube 6 to ensure that the protection tube 6 will not fall off, remove the manual supporting force on the protection tube 6 to ensure that the protection tube 6 can be automatically and accurately conveyed along the second hollow cylinder 3007 by means of the conveying unit 7 subsequently, avoiding the feeding deviation caused by manual feeding and affecting the subsequent flaring accuracy.

[0073] Specifically, the settings of the first through groove 7003 and the second through groove 7004 enable the two arc plates 7006 to first move closer to each other, and then push the protection tube 6 to the flaring station in a vertical posture. The existence of the connecting piece 7009, the first blind groove 7007 and the second blind groove 7008 can limit the moving direction of the connecting rod 7005 to ensure that the connecting rod 7005 will not rotate when moving in the inner cavities of the first through groove 7003 and the second through groove 7004. In this way, the protection tube 6 limited by the two connecting rods 7005 can be stably and vertically sent to the flaring station, providing guarantee for the accurate development of the subsequent flaring operation and effectively avoiding the flaring quality problems caused by the movement deviation of the components.

[0074] In addition, the conveying unit 7 further includes a driving assembly, which includes a moving frame 7011, a fixing plate 7012, a third supporting seat 7013 and a third hydraulic cylinder 7014. The moving frame 7011 is slidably sleeved on the connecting rod 7005, and the moving frame 7011 moves back and forth along the upper surface of the top plate 7002. The fixing plate 7012 is fixedly installed on the side wall of the top plate 7002. The third supporting seat 7013 is fixedly installed on the rear side wall of the fixing plate 7012. The third hydraulic cylinder 7014 is installed on the third supporting seat 7013, and the output end of the third hydraulic cylinder 7014 is fixedly connected to the moving frame 7011. While driving the connecting rod 7005 to move along the inner cavities of the first through groove 7003 and the second through groove 7004 through the moving frame 7011, the connecting piece 7009 connected to the connecting rod 7005 can drive the limit pin 7010 to move synchronously along the inner cavities of the first blind groove 7007 and the second blind groove 7008, so as to guide and limit the displacement of the connecting rod 7005, ensure that the connecting rod 7005 does not rotate during the displacement process, and further ensure that the arc-shaped plate 7006 at the bottom end of the connecting rod 7005 can drive the protective tube 6 to be sleeved on the second hollow cylinder 3007 in a vertical direction.

[0075] The present invention uses a single power driving mechanism to coherently complete two key steps. First, by virtue of this power, the two arc-shaped plates 7006 are driven to move towards each other to support and limit the port of the protective tube 6, so that the port of the protective tube 6 is accurately positioned at the initial stage. Second, under the continuous drive of the moving frame 7011, the protective tube 6 is pushed into the flaring station accurately in a vertical state. The whole operation only relies on a single power source without two powers. This not only meets the process requirements for the protective tube 6 to vertically enter the flaring station, ensures high-precision flaring, but also reduces the number of power sources, avoids situations such as poor action connection and coordination caused by dual power sources, and ensures the smooth and stable operation of the equipment. At the same time, the same power source makes the two arc-shaped plates 7006 move symmetrically and uniformly, ensuring the accuracy of limiting and pushing the protective tube 6.

[0076] In addition, it is worth noting that in the present invention, the first hydraulic cylinder 4003, the second hydraulic cylinder 5003, and the third hydraulic cylinder 7014 are all commonly used hydraulic cylinders on the market. Their output ends can stay at any position and be locked. The corresponding common models can be adopted, and there is no need to elaborate and limit here. And in the present invention, through the controller 2, the start-stop, displacement and the timing of start-stop displacement of the first hydraulic cylinder 4003, the second hydraulic cylinder 5003, and the third hydraulic cylinder 7014 can be controlled to form a coherent overall step of supporting and feeding the protective tube 6, automatically flaring the protective tube 6, automatically resetting the flaring tool, and automatically discharging the protective tube 6 after flaring. This is the prior art and will not be elaborated here. The above components can all select appropriate models and installation methods as needed, and there is no limit to the models of the above existing components and no excessive elaboration.

[0077] An end flaring device for the production of a cable protection pipe according to the present invention. The working principle of flaring the port of the protection pipe 6 is as follows:

[0078] First, prepare for flaring: Manually place the port of the protection pipe 6 to be processed between two arc-shaped plates 7006. As the third hydraulic cylinder 7014 that is opened drives the moving frame 7011 to move backward, it drives two groups of connecting rods 7005 to move backward along the inner cavity of the first through groove 7003. At this time, the arc-shaped plates 7006 move synchronously with the connecting rods 7005. Since the first through groove 7003 is inclined relative to the second through groove 7004, when the connecting rods 7005 move from the inner cavity of the first through groove 7003 to the inner cavity of the second through groove 7004, it causes the two groups of arc-shaped plates 7006 connected by the two connecting rods 7005 to approach each other, realizing the support and clamping of the outer wall of the protection pipe 6 by the two arc-shaped plates 7006. At this time, the manual support effect on the protection pipe 6 is removed. As the connecting rods 7005 continue to drive the arc-shaped plates 7006 and the protection pipe 6 to move backward, it causes the port of the protection pipe 6 to be sleeved on the second hollow cylinder 3007 backward, and ensures that the port of the protection pipe 6 is at the flaring station formed by the second mounting plate 3006 and the first hollow cylinder 3002. At this time, the output end of the third hydraulic cylinder 7014 stops moving and locks its position, thus completing the automatic pushing of the protection pipe 6 to the flaring station;

[0079] When flaring the port of the protection tube 6, first, the first hydraulic cylinder 4003 that is turned on drives the disc 4004 to move forward. The disc 4004 drives the four groups of first driving rods 4005 installed on its side wall to move forward synchronously to the front side, so as to prompt the four groups of first connecting seats 4006 to move forward along the guiding grooves 3005 at corresponding positions respectively. The first connecting seats 4006 that move forward to the front side first prompt the first linkage rod 4007, the second connecting seat 4008, the first flaring block 4009 and the first front guiding block 4010 to move forward synchronously to the front side until the inclined end face of the first front guiding block 4010 touches the rear edge of the second hollow cylinder 3007. Under the pushing action of the continuously forward moving first driving rod 4005, the first front guiding block 4010 is prompted to always fit and move along the rear edge of the second hollow cylinder 3007, and then the first linkage rod 4007 drives the second connecting seat 4008 to extend outward. That is, under the limiting action of the rear side wall edge of the second hollow cylinder 3007, the four groups of first flaring blocks 4009 are prompted to expand equidistantly outward, forming four arc-shaped inner support structures that are spaced apart with a smooth outer wall, and in this process, the four groups of first flaring blocks 4009 that support inward drive the protection tube 6 to be forced to expand outward, realizing the preliminary flaring processing of the port of the protection tube 6; Secondly, the second hydraulic cylinder 5003 that is turned on drives the U-shaped driving frame 5004 to drive the annular disc 5006 to move forward to the front side, so as to prompt the four groups of second driving rods 5007 installed on the side wall of the annular disc 5006 to move forward along the inner cavity of the guiding grooves 3005 at corresponding positions respectively, so as to realize the synchronous displacement of the four groups of third connecting seats 5008, the second linkage rod 5009 and the fourth connecting seat 5010 until the inclined end face of the second front guiding block 5012 driven by the fourth connecting seat 5010 touches the rear edge of the second hollow cylinder 3007. The continuously moving second driving rod 5007 and the third connecting seat 5008 drive the second linkage rod 5009, the fourth connecting seat 5010 and the second flaring block 5011 to extend outward. Since the second flaring block 5011 is arranged at the gap between two circumferentially adjacent first flaring blocks 4009, as the second flaring block 5011 extends outward, the gap between two adjacent first flaring blocks 4009 can be filled, and the inner support flaring processing of the port of the protection tube 6 is realized again; Finally, through the four groups of second flaring blocks 5011 in the inner support state and the four groups of first flaring blocks 4009 in the inner support state, a circular inner support structure with a smooth outer wall is jointly formed. This circular inner support structure prompts the inner support of the port of the protection tube 6, ensuring that the second flaring blocks 5011 and the first flaring blocks 4009 are in full-contact and gapless inner support fitting at the port of the protection tube 6, and prompting the port of the protection tube 6 to form a uniform flaring structure;

[0080] In summary, the present invention can complete the circumferential flaring of the end of the cable protection pipe in a single operation, effectively avoiding the uncertainty brought by manual angle adjustment, enabling the circumferential force on the flared port to reach a high level of balance, with a uniform edge thickness, enhancing the stability and sealing performance of the connection part of the protection pipe; the component design evenly distributed along the circumferential direction can achieve equidistant internal support flaring of the cable protection pipe port, thus effectively avoiding deviations during the flaring process and significantly improving the quality and precision of the flaring process; at the same time, the annular internal support structure can achieve full-round close fitting with the inner wall of the cable protection pipe port, ensuring the shape accuracy and dimensional stability of the port, and strongly promoting the reliable connection between the protection pipes.

[0081] Embodiment 2

[0082] Refer to Figures 16 to 18 As shown, in this state, the protection pipe 6 is ready for flaring processing, and the first flaring unit 4 and the second flaring unit 5 are in the initial position state.

[0083] When disassembling the protective tube 6 after the hole expansion process, refer to the steps and principles in the above embodiment 1, first use the output end of the second hydraulic cylinder 5003 to drive the annular disk 5006 to move backward, so that the four sets of second drive rods 5007 respectively drive the third connecting seat 5008, the second connecting rod 5009, and the fourth connecting seat 5010 at the corresponding positions to retract. Due to the setting of the inclined end face of the second rear guide block 5013, the second drive rod 5007 continues to move backward to achieve The inclined end surface of the second rear guide block 5013 is displaced along the front edge of the first hollow cylinder 3002 until the second flared block 5011, the second front guide block 5012 and the second rear guide block 5013 are completely retracted into the inner cavity of the first hollow cylinder 3002; the output end of the first hydraulic cylinder 4003 is then used to drive the disc 4004 to move backward, so that the four groups of first driving rods 4005 respectively drive the first connecting seat 4006, the first connecting rod 4007 and the second connecting rod 4008 at the corresponding positions. The seat 4008 shows a tendency to retract. With the help of the setting of the inclined end face of the first rear guide block 4011, the first driving rod 4005 continues to move backward, so that the inclined end face of the first rear guide block 4011 moves along the front edge of the first hollow cylinder 3002 until the first flaring block 4009, the first front guide block 4010, and the first rear guide block 4011 are retracted to the inner wall of the end of the protection tube 6. At this time, the flared protection tube 6 is no longer affected by the first flaring block 4009 and the second flaring block. The internal supporting effect of the body 5011; that is, in the above-mentioned operation steps, it can be ensured that when the protective tube 6 is internally supported and expanded, the four groups of first expanding blocks 4009 are first pushed outward and inward, and then the four groups of second expanding blocks 5011 are pushed outward and inward; when the protective tube 6 is disassembled after internal support, the four groups of second expanding blocks 5011 are first retracted and reset, and then the four groups of first expanding blocks 4009 are retracted and reset, so as to avoid the interference between the retraction and reset of the first expanding blocks 4009 and the second expanding blocks 5011.

[0084] In addition, referring to the step principles in the above-mentioned embodiment 1, the output end of the third hydraulic cylinder 7014 is moved forward to enable the two sets of connecting rods 7005 to enter the inner cavity of the first through groove 7003 along the inner cavity of the second through groove 7004, so that the arc plate 7006 can drive the protective tube 6 to the front side to separate from the outer wall of the second hollow cylinder 3007, and gradually separate from the purpose of supporting the side wall of the protective tube 6, that is, to realize the automatic unloading of the protective tube 6 after the expansion processing.

[0085] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0086] In the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0087] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0088] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0089] Unless otherwise specified, the term "plurality" means two or more.

[0090] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0091] The term "and / or" describes the association relationship of objects and indicates that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0092] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An end flaring device for the production of cable protection pipes, which is used for flaring the ends of the protection pipes (6), including a box body (1) and a controller (2), the controller (2) is arranged at the top end of the side wall of the box body (1), and is characterized in that: Further included are: A limit guiding component (3), the limit guiding component (3) is installed on the upper surface of the box body (1), and the limit guiding component (3) includes an inner support chamber; a first flaring component, four groups of the first flaring components are circumferentially arranged at equal intervals; a second flaring component, four groups of the second flaring components are circumferentially arranged at equal intervals, and the second flaring component and the first flaring component are alternately arranged at intervals in the circumferential direction; wherein, the first flaring component and the second flaring component are in an inner support state and a retracted state: in the inner support state, the first flaring component and the second flaring component form an annular inner support structure at the inner support chamber, and the diameter of the annular inner support structure is greater than the diameter of the protection tube (6), and the protection tube (6) realizes flaring processing at the annular inner support structure; in the retracted state, the first flaring component and the second flaring component are retracted into the inner cavity of the limit guiding component (3) and the inner support chamber; The limit guiding component (3) further includes: a fixed seat (3001), the fixed seat (3001) is fixedly installed on the upper surface of the box body (1); a first hollow cylinder (3002), the first hollow cylinder (3002) is fixedly installed on the fixed seat (3001), and the front edge of the first hollow cylinder (3002) extends out of the front side wall of the box body (1); a first mounting plate (3003), the first mounting plate (3003) is fixedly installed on the rear side of the inner cavity of the first hollow cylinder (3002); a guiding column body (3004), the guiding column body (3004) is vertically and fixedly installed on the front side wall of the first mounting plate (3003); guiding grooves (3005), eight groups of guiding grooves (3005) are provided, and the eight groups of guiding grooves (3005) are circumferentially and equally spaced on the circumferential side wall of the guiding column body (3004); a second mounting plate (3006), the second mounting plate (3006) is vertically and fixedly installed at the front end of the guiding column body (3004); a second hollow cylinder (3007), the second hollow cylinder (3007) is fixedly installed on the outside of the second mounting plate (3006); wherein, the centers of the first hollow cylinder (3002), the first mounting plate (3003), the center point of the guiding column body (3004), the center of the second mounting plate (3006), and the center of the second hollow cylinder (3007) are all located on the same central axis, and the first hollow cylinder (3002) and the second hollow cylinder (3007) are separately arranged to form the inner support chamber; It further includes a first flaring unit (4), and the first flaring unit (4) includes: a first support plate (4001) vertically and fixedly installed on the upper surface of the box body (1); a first supporting seat (4002) vertically and fixedly installed at the top end of the first support plate (4001), and the rear end of the first supporting seat (4002) is fixedly connected to the top end of the first support plate (4001); a first hydraulic cylinder (4003) installed on the first supporting seat (4002); a disc (4004) connected to the output end of the first hydraulic cylinder (4003); a first driving rod (4005), there are four groups of the first driving rods (4005), the four groups of the first driving rods (4005) are vertically installed on the front side wall of the disc (4004), and the four groups of the first driving rods (4005) are equidistantly arranged along the circumference; a first connecting seat (4006) fixedly connected to the front end of the first driving rod (4005), and the first connecting seat (4006) is slidably embedded in the inner cavity of the guiding groove (3005); a first linkage rod (4007), one end of the first linkage rod (4007) is rotatably connected to the first connecting seat (4006); a second connecting seat (4008) rotatably connected to the other end of the first linkage rod (4007), and the second connecting seat (4008) is connected to the first flaring assembly; wherein, the first linkage rod (4007) is inclined between the second connecting seat (4008) and the first connecting seat (4006). It further includes a second flaring unit (5), and the second flaring unit (5) includes: a second support plate (5001) vertically and fixedly installed on the upper surface of the box body (1); a second support seat (5002) vertically and fixedly installed at the top of the second support plate (5001); a second hydraulic cylinder (5003) installed on the second support seat (5002); a U-shaped driving frame (5004) connected to the output end of the second hydraulic cylinder (5003), and the U-shaped driving frame (5004) is set in a U shape; a support seat (5005) vertically and fixedly installed on the upper surface of the box body (1), and the U-shaped driving frame (5004) slidably penetrates through the side wall of the support seat (5005); an annular disc (5006) fixedly connected to the front end of the U-shaped driving frame (5004), and the annular disc (5006) is provided with a hollow inner cavity; four groups of second driving rods (5007) vertically installed on the front side wall of the annular disc (5006), and the four groups of second driving rods (5007) are equidistantly arranged in the circumferential direction; a third connecting seat (5008) fixedly connected to the front end of the second driving rod (5007), and the third connecting seat (5008) is slidably embedded in the inner cavity of the guiding groove (3005); a second linkage rod (5009) with one end rotatably connected to the third connecting seat (5008); a fourth connecting seat (5010) rotatably connected to the other end of the second linkage rod (5009), and the fourth connecting seat (5010) is connected to the first flaring assembly; wherein, the second linkage rod (5009) is inclined between the third connecting seat (5008) and the fourth connecting seat (5010).

2. The end flaring device for producing cable protection pipes according to claim 1, wherein: The first flaring component includes: a first flaring block (4009), the first flaring block (4009) is fixedly connected to the second connecting seat (4008), and the outer wall of the first flaring block (4009) is set as a smooth arc; a first front guiding block (4010) and a first rear guiding block (4011), the first front guiding block (4010) and the first rear guiding block (4011) are respectively fixedly installed at the front and rear ends of the first flaring block (4009), and the first front guiding block (4010) and the first rear guiding block (4011) are arranged corresponding to each other in the front and rear directions with respect to the first flaring block (4009); wherein, the cross-sectional view in the front and rear direction of the first flaring block (4009), the first front guiding block (4010), and the first rear guiding block (4011) is trapezoidal.

3. The end flaring device for producing a cable protection pipe according to claim 1, wherein: The diameter of the hollow inner cavity of the annular disc (5006) is larger than the diameter of the disc (4004).

4. The end flaring device for producing a cable protection pipe according to claim 2, wherein: The second flaring component includes: a second flaring block (5011), the second flaring block (5011) is fixedly connected to the fourth connecting seat (5010), and the outer wall of the second flaring block (5011) is set as a smooth arc; a second front guiding block (5012) and a second rear guiding block (5013), the second front guiding block (5012) and the second rear guiding block (5013) are respectively fixedly installed at the front and rear ends of the second flaring block (5011), and the second front guiding block (5012) and the second rear guiding block (5013) are arranged corresponding to each other in the front and rear directions with respect to the second flaring block (5011); wherein, the cross-sectional view in the front and rear direction of the second flaring block (5011), the second front guiding block (5012), and the second rear guiding block (5013) is trapezoidal.

5. The end flaring device for producing a cable protection pipe according to claim 4, wherein: In the inner support state, the shape of the second front guiding block (5012) is adapted to the shape of the space between two adjacent groups of the first front guiding blocks (4010), the shape of the second flaring block (5011) is adapted to the shape of the space between two adjacent groups of the first flaring blocks (4009), and the shape of the second rear guiding block (5013) is adapted to the shape of the space between two adjacent groups of the first rear guiding blocks (4011).

6. The end flaring device for producing a cable protection pipe according to claim 1, wherein: It further includes a conveying unit (7), the conveying unit (7) includes two groups of conveying components, the two groups of conveying components are symmetrically arranged left and right with the protective tube (6) as the center, and each group of conveying components includes: a third support plate (7001), the third support plate (7001) is vertically and fixedly installed on the upper surface of the box body (1); a top plate (7002), the top plate (7002) is vertically and fixedly installed at the top end of the front side wall of the third support plate (7001); a first through groove (7003) and a second through groove (7004), the first through groove (7003) and the second through groove (7004) are both formed through the top plate (7002), the first through groove (7003) is communicated with the second through groove (7004), and the first through groove (7003) is inclined with respect to the second through groove (7004); a connecting rod (7005), the connecting rod (7005) is vertically and slidably arranged in the inner cavities of the first through groove (7003) and the second through groove (7004); an arc plate (7006), the arc plate (7006) is fixedly installed at the bottom end of the connecting rod (7005), and the arc plate (7006) is arranged in an arc shape; a first blind groove (7007) and a second blind groove (7008), the first blind groove (7007) and the second blind groove (7008) are both formed on the upper surface of the top plate (7002), the first through groove (7003) is communicated with the second blind groove (7008), and the first blind groove (7007) is inclined with respect to the second blind groove (7008), the first blind groove (7007) is parallel to the first through groove (7003), and the second blind groove (7008) is parallel to the second through groove (7004); a connecting piece (7009), the connecting piece (7009) is fixedly installed at the top end of the connecting rod (7005); a limit pin (7010), the limit pin (7010) is vertically and fixedly installed on the lower surface of the connecting piece (7009), and the limit pin (7010) is slidably arranged in the inner cavities of the first blind groove (7007) and the second blind groove (7008).

7. The end flaring device for producing a cable protection tube according to claim 6, characterized in that: The conveying unit (7) further includes a driving assembly, and the driving assembly includes: a moving frame (7011) which is slidably sleeved on the connecting rod (7005), and the moving frame (7011) moves in the front-back direction along the upper surface of the top plate (7002); a fixing plate (7012) which is fixedly installed on the side wall of the top plate (7002); a third supporting seat (7013) which is fixedly installed on the rear side wall of the fixing plate (7012); a third hydraulic cylinder (7014) which is installed on the third supporting seat (7013), and the output end of the third hydraulic cylinder (7014) is fixedly connected to the moving frame (7011).

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