Flaring device for cable protection pipe production

Abstract

The invention discloses a flaring device for cable protection pipe production, and relates to the technical field of cable protection pipe production, the flaring device comprises a base, a first transmission assembly, an adjusting assembly and a second transmission assembly, the base is intermittently and rotatably connected with a synchronous belt, and the synchronous belt is equidistantly provided with a plurality of positioning parts for positioning cable protection pipes; a flaring column and a heating sleeve are synchronously and slidably connected to the base, a first clamping piece and a second clamping piece are synchronously and slidably connected to the upper portion of the synchronous belt in a reciprocating mode, a transfer table is arranged on the base, and the first transmission assembly is driven by sliding of the first clamping piece so that the synchronous belt can intermittently rotate. In the sliding process of the first clamping piece, the first clamping piece is made to rotate through the adjusting assembly, and the second transmission assembly is driven by sliding of the first clamping piece so that the flaring column and the heating sleeve can slide synchronously. According to the device, the two ends of a batch of cable protection pipes can be continuously heated and flared, and the working efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of cable protection tube production, in particular to a expander for cable protection tube production. Background Art

[0002] A cable protection tube is a protective tube with a certain mechanical strength that is laid on the outer layer of the cable to prevent the cable from being damaged. When the cable protection tube enters the cable trench (tunnel) or cable well, in order to protect the outer protective layer of the cable from being cut by the tube opening, it is generally required to expand the tube opening.

[0003] For example, the Chinese patent with publication number CN213593627U and name "A expanding device for cable protection tube production" includes a frame, a expanding component arranged on the frame, a clamping component, an inclined feeding platform, a cable protection tube, and a control device. A heating component is arranged on the side of the clamping component close to the expanding component, and the clamping component, the expanding component and the heating component are all electrically connected to the control device. In actual application, the cable protection tube to be expanded rolls into the clamping component from the inclined feeding platform, the control device controls the clamping component to clamp the cable protection tube to be expanded, heats the cable protection tube to be expanded by the heating component, expands the heated cable protection tube by the expanding component, and after the expansion is completed, the expanded cable protection tube can be taken out by loosening the clamping component. The utility model is easy to install and remove, the expanded thickness of the pipe is uniform, the expanding effect is good, and the production efficiency is high.

[0004] Although the expanding device for cable protection tube production in the above patent is practical and convenient, it also has shortcomings. The above patent can only expand one end of a cable protection tube at a time, and cannot cyclically expand both ends of a batch of cable protection tubes. The work efficiency is low and cannot meet the demand for expanding both ends of the protection tube. Summary of the invention

[0005] The object of the present invention is to provide a expander for producing a cable protection tube, so as to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: the expander for producing cable protection tubes comprises a base, a first transmission assembly, an adjustment assembly and a second transmission assembly, the base is intermittently rotatably connected to a synchronous belt, a plurality of positioning members for positioning the cable protection tube are equidistantly arranged on the synchronous belt, a expanding column and a heating sleeve are synchronously slidably connected to the base, a first clamping member and a second clamping member are synchronously reciprocatingly slidably connected above the synchronous belt, a transfer table is provided on the base, the first transmission assembly is driven by the sliding of the first clamping member to make the synchronous belt intermittently rotate, and during the sliding of the first clamping member, the first clamping member is rotated by the adjustment assembly, and the second transmission assembly is driven by the sliding of the first clamping member to make the expanding column and the heating sleeve slide synchronously.

[0007] Furthermore, a first fixed plate and a second fixed plate are fixedly connected to the base, a driving roller and a driven roller are rotatably connected between the first fixed plate and the second fixed plate, and the synchronous belt is rotatably sleeved on the peripheral side surfaces of the driving roller and the driven roller.

[0008] Further, the first transmission assembly includes a first gear and a first irregular gear meshing with the first gear, the first gear and the first irregular gear are rotatably connected to one side of a first fixed plate, and one end of the first gear is coaxially fixedly connected to one end of an active roller, one side of the first fixed plate is fixedly connected to a support plate, the support plate is provided with a motor, and the output end of the motor is coaxially fixedly connected to the first irregular gear.

[0009] Furthermore, the other end of the first irregular gear is coaxially fixedly connected to a rotating rod, and two spiral grooves connected end to end are opened on the rotating rod. A movable plate is reciprocatingly slidably connected to the rotating rod, and a protrusion is provided in the movable plate. Both of the spiral grooves are slidably matched with the protrusion. A first guide rod is horizontally arranged on the other side of the first fixed plate, and the movable plate is slidably sleeved on the first guide rod. A first connecting block is provided on the side of the movable plate close to the first clamping member, and a connecting rod is provided between the first clamping member and the first connecting block, and the connecting rod is rotatably connected to one side of the first connecting block.

[0010] Furthermore, the adjustment assembly includes a second bracket, a first rack and a second gear meshing with the first rack, the second gear is sleeved on the connecting rod, the second bracket is fixedly connected to the base, the first rack is horizontally fixedly connected to the top of the second bracket, and during the sliding process of the first clamping member, the first rack has an engagement position meshing with the second gear.

[0011] Furthermore, the second transmission assembly includes a pushing rod, a first spring, a slider, an abutment block, a second guide rod, a second spring, a second connecting block and a third connecting block. The second fixed plate is provided with a first sliding groove and a second sliding groove which is connected to and perpendicular to the first sliding groove. The pushing rod and the slider are horizontally slidably connected in the first sliding groove, and the abutment block and the second connecting block are horizontally slidably connected in the second sliding groove. The pushing rod is penetrated at one end of the slider, the first spring is sleeved on the pushing rod, and the two ends of the first spring are respectively fixedly connected to one end of the slider close to the pushing rod and the inner wall of the first sliding groove, and the other end of the slider is connected to one end of the abutment block. The ends are slidably abutted, the abutment block is slidably sleeved on the second guide rod, the second guide rod is horizontally fixedly connected in the second slide groove, the second spring is sleeved on the second guide rod, the two ends of the second spring are respectively fixedly connected to the other end of the abutment block and the inner wall of the second slide groove, the second connecting block is arranged between the bottom of the third connecting block and the top of the abutment block, the two ends of the third connecting block are respectively fixedly connected to the heating sleeve and the flaring column, the end of the abutment block close to the slider is inclined, the end of the push rod close to the first connecting block is conical, and the first connecting block and the end of the push rod away from the slider are slidably abutted.

[0012] Furthermore, each of the positioning members includes a connecting plate, a cylinder, a first positioning groove and a second positioning groove, the connecting plate is arranged on the synchronous belt, the cylinder is horizontally fixedly connected to one side of the connecting plate, the first positioning groove and the second positioning groove are both opened on one side of the connecting plate, and the inner diameter and outer diameter of the first positioning groove are both smaller than the inner diameter and outer diameter of the second positioning groove.

[0013] Furthermore, the first clamping member includes an L-shaped first clamping block, a first clamping plate, a rotating shaft and a torsion spring, one side of the first clamping block is fixedly connected to one end of the connecting rod, the rotating shaft is arranged in the first clamping block, the first clamping plate is rotatably sleeved on the rotating shaft, the torsion spring is arranged between the first clamping plate and the rotating shaft, and the torsion spring is sleeved on the rotating shaft.

[0014] Furthermore, the second clamping member includes an L-shaped second clamping block, a second clamping plate and a second irregular gear, the second irregular gear is horizontally rotatably connected to the bottom end of the second clamping block, and the second clamping plate is fixedly connected to the second irregular gear and formed as one piece, and the top of the second clamping block and one side of the first connecting block are respectively fixedly connected to the two ends of the first bracket.

[0015] Furthermore, a transfer trough is provided on the transfer platform, a second rack meshing with a second irregular gear is horizontally arranged in the transfer trough, and a first through hole and a second through hole communicating with the transfer trough are provided on the transfer platform.

[0016] Compared with the prior art, the present invention provides the following beneficial effects: the expander for cable protection tube production intermittently transports the cable protection tube through the positioning piece on the synchronous belt, and when the synchronous belt does not rotate, the first clamping piece and the second clamping piece clamp the cable protection tube with one end already expanded and move toward the transfer platform at the same time, the cable protection tube with one end already expanded is transported to the transfer platform, and the first clamping piece clamps the cable protection tube with the expanded end closest to it in the transfer platform, and during the movement of the first clamping piece, the expanding column and the heating sleeve are synchronously slid to the two ends of the synchronous belt through the second transmission component. The corresponding cable protection tubes are expanded and heated respectively. During the reverse movement of the first clamping member, the first clamping member drives the cable protection tube whose one end has been expanded to rotate 180° through the adjusting component. When the synchronous belt rotates intermittently, the other end of the cable protection tube whose one end has been expanded can undergo subsequent heating and expanding processes. During the reverse movement of the first clamping member, secondary expansion and secondary heating are performed through the second transmission component to improve the expansion effect and heating efficiency. The overall device has high working efficiency and can continuously operate to expand both ends of a batch of cable protection tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A top view of the overall structure provided by an embodiment of the present invention; Figure 3 for Figure 2 Sectional view at AA in the middle; Figure 4 for Figure 3 The enlarged view of point B in the middle; Figure 5 for Figure 1 Enlarged view of point C in the middle; Figure 6 for Figure 2 Sectional view at DD in the middle; Figure 7 for Figure 6 Sectional view at EE; Figure 8 for Figure 7 Enlarged view of point F in the middle.

[0019] Explanation of the reference numerals: 1, base; 2, first fixed plate; 3, second fixed plate; 4, support plate; 5, motor; 6, first irregular gear; 7, first gear; 8, active roller; 9, driven roller; 10, synchronous belt; 11, moving plate; 12, rotating rod; 13, spiral groove; 14, protrusion; 15, first guide rod; 16, first connecting block; 17, connecting rod; 18, second gear; 19, first clamping block; 20, first clamping plate; 21, rotating shaft; 22, torsion spring; 23, first bracket; 24, second clamping block; 25, second clamping plate; 26, second Irregular gear; 27, second bracket; 28, first rack; 29, connecting plate; 30, cylinder; 31, first positioning groove; 32, second positioning groove; 33, push rod; 34, first slide groove; 35, first spring; 36, slider; 37, second slide groove; 38, abutment block; 39, guide hole; 40, second guide rod; 41, second spring; 42, second connecting block; 43, third connecting block; 44, heating sleeve; 45, flaring column; 46, transfer table; 47, second rack; 48, transfer groove; 49, first through hole; 50, second through hole. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1-8 The embodiment of the present invention provides a technical solution: the expander for cable protection tube production includes a base 1, a first transmission assembly, an adjustment assembly and a second transmission assembly. The base 1 is intermittently rotatably connected with a synchronous belt 10, and a plurality of positioning members for positioning the cable protection tube are arranged at equal distances on the synchronous belt 10. The base 1 is synchronously slidably connected with an expansion column 45 and a heating sleeve 44. The upper part of the synchronous belt 10 is synchronously reciprocatingly slidably connected with a first clamping member and a second clamping member. The base 1 is provided with a transfer platform 46. The first transmission assembly is driven by the first clamping member to slide so that The synchronous belt 10 rotates intermittently. During the sliding of the first clamping member, the first clamping member is rotated by the adjusting component. The second transmission component is driven by the sliding of the first clamping member to make the expanding column 45 and the heating sleeve 44 slide synchronously. Specifically, the expanding column 45 is truncated cone-shaped at one end facing the positioning member, which is convenient for expanding the hole of the cable protection tube. The first fixed plate 2 and the second fixed plate 3 are fixedly connected to the base 1. The active roller 8 and the driven roller 9 are rotatably connected between the first fixed plate 2 and the second fixed plate 3. The synchronous belt 10 is rotatably sleeved on the peripheral side surfaces of the active roller 8 and the driven roller 9.

[0022] As a preferred technical solution, the first transmission assembly includes a first gear 7 and a first irregular gear 6 meshing with the first gear 7, the first gear 7 and the first irregular gear 6 are rotatably connected to one side of the first fixed plate 2, and one end of the first gear 7 is coaxially fixedly connected to one end of the active roller 8, a support plate 4 is fixedly connected to one side of the first fixed plate 2, a motor 5 is provided on the support plate 4, and the output end of the motor 5 is coaxially fixedly connected to the first irregular gear 6. Specifically, start the motor 5, and the motor 5 drives the first irregular gear 6 to rotate. When the first irregular gear 6 is meshed with the first gear 7, the synchronous belt 10 rotates a certain distance, and when the first irregular gear 6 is not meshed with the first gear 7, the synchronous belt 10 stops rotating.

[0023] As a preferred technical solution, the other end of the first irregular gear 6 is coaxially fixedly connected to a rotating rod 12, and two spiral grooves 13 connected end to end are opened on the rotating rod 12. A movable plate 11 is reciprocatingly slidably connected to the rotating rod 12, and a protrusion 14 is provided in the movable plate 11, and the two spiral grooves 13 are slidably matched with the protrusion 14. A first guide rod 15 is horizontally arranged on the other side of the first fixed plate 2, and the movable plate 11 is slidably sleeved on the first guide rod 15. A first connecting block 16 is provided on the side of the movable plate 11 close to the first clamping member, and a connecting rod 17 is provided between the first clamping member and the first connecting block 16. The connecting rod 17 is rotatably connected to one side of the first connecting block 16. Specifically, the first irregular gear 6 drives the rotating rod 12 to rotate, and the sliding match between the protrusion 14 and the two spiral grooves 13 is achieved. At the same time, the first guide rod 15 limits the circumferential rotation of the movable plate 11, so that the movable plate 11 drives the first clamping member to slide reciprocatingly through the first connecting block 16 and the connecting rod 17.

[0024] As a preferred technical solution, the adjustment component includes a second bracket 27, a first rack 28 and a second gear 18 meshing with the first rack 28. The second gear 18 is sleeved on the connecting rod 17, the second bracket 27 is fixedly connected to the base 1, and the first rack 28 is horizontally fixedly connected to the top of the second bracket 27. During the sliding process of the first clamping member, the first rack 28 has an engagement position for meshing with the second gear 18. Specifically, after the first clamping member moves to the transfer platform 46 to clamp the cable protection tube with one end already expanded, in the process of moving toward the synchronous belt 10, the first clamping member drives the clamped cable protection tube to rotate 180 degrees through the meshing rotation between the second gear 18 and the first rack 28, so that the other end of the clamped cable protection tube can undergo the next step of heating and reaming process, thereby realizing the expansion of both ends of the cable protection tube, which can meet the needs of society.

[0025] As a preferred technical solution, the second transmission assembly includes a push rod 33, a first spring 35, a slider 36, an abutment block 38, a second guide rod 40, a second spring 41, a second connecting block 42 and a third connecting block 43. A first slide groove 34 and a second slide groove 37 that is connected to and perpendicular to the first slide groove 34 are provided in the second fixed plate 3. The push rod 33 and the slider 36 are horizontally slidably connected in the first slide groove 34, the abutment block 38 and the second connecting block 42 are horizontally slidably connected in the second slide groove 37, the push rod 33 is penetrated at one end of the slider 36, the first spring 35 is sleeved on the push rod 33, and the two ends of the first spring 35 are respectively connected to the end of the slider 36 close to the push rod 33 and the third connecting block 43. The inner wall of the first slide groove 34 is fixedly connected, the other end of the slider 36 is slidably abutted against one end of the abutment block 38, the abutment block 38 is slidably sleeved on the second guide rod 40, the second guide rod 40 is horizontally fixedly connected in the second slide groove 37, the second spring 41 is sleeved on the second guide rod 40, the two ends of the second spring 41 are respectively fixedly connected to the other end of the abutment block 38 and the inner wall of the second slide groove 37, the second connecting block 42 is arranged between the bottom of the third connecting block 43 and the top of the abutment block 38, the two ends of the third connecting block 43 are respectively fixedly connected to the heating sleeve 44 and the flaring column 45, the abutment block 38 is inclined at one end close to the slider 36, and the push rod 33 is close to the first connecting One end of the block 16 is tapered, and the first connecting block 16 is slidably abutted against the end of the push rod 33 away from the slider 36. Specifically, a guide hole 39 is provided in the abutting block 38, and the abutting block 38 is slidably sleeved on the second guide rod 40 through the guide hole 39. In the process of the moving plate 11 driving the first connecting block 16 to move toward the transfer platform 46, since the end of the push rod 33 close to the first connecting block 16 is tapered, the first connecting block 16 slides against the push rod 33, so that the push rod 33 can drive the slider 36 to move toward the abutting block 38, and since the end of the abutting block 38 close to the slider 36 is inclined, the abutting block 38 can pass through the second connecting block 42 and the third connecting block 4 3 drives the heating sleeve 44 and the expanding column 45 to move toward the first fixed plate 2, and the two cable protection tubes are heated and expanded respectively. When the first connecting block 16 is not in contact with the pushing rod 33, the slider 36 slides in the opposite direction through the elastic deformation of the first spring 35. When the slider 36 slides in the opposite direction, the abutting block 38 drives the heating sleeve 44 and the expanding column 45 to slide in the opposite direction through the second connecting block 42 and the third connecting block 43 through the elastic deformation of the second spring 41. When the movable plate 11 drives the first connecting block 16 to move toward the first fixed plate 2, the two cable protection tubes can be heated and expanded for the second time respectively, thereby improving the expansion effect and heating efficiency.

[0026] As a preferred technical solution, each positioning member includes a connecting plate 29, a cylinder 30, a first positioning groove 31 and a second positioning groove 32. The connecting plate 29 is arranged on the synchronous belt 10, and the cylinder 30 is horizontally fixedly connected to one side of the connecting plate 29. The first positioning groove 31 and the second positioning groove 32 are both opened on one side of the connecting plate 29, and the inner diameter and outer diameter of the first positioning groove 31 are smaller than the inner diameter and outer diameter of the second positioning groove 32. Specifically, the cylinder 30 is adapted to the inner diameter of the cable protection tube, and the cable protection tube is sleeved on the cylinder 30, and the end of the cable protection tube that has not been expanded is snap-fitted in the first positioning groove 31, and the end of the cable protection tube that has been expanded is snap-fitted in the second positioning groove 32. Preferably, after one end of the cable protection tube is expanded, the overall length of the cable protection tube is shortened, and the depth of the first positioning groove 31 is deeper than the second positioning groove 32, which can ensure that the degree of heating and expansion at both ends is the same.

[0027] As a preferred technical solution, the first clamping member includes an L-shaped first clamping block 19, a first clamping plate 20, a rotating shaft 21 and a torsion spring 22. One side of the first clamping block 19 is fixedly connected to one end of the connecting rod 17. The rotating shaft 21 is arranged in the first clamping block 19. The first clamping plate 20 is rotatably sleeved on the rotating shaft 21. The torsion spring 22 is arranged between the first clamping plate 20 and the rotating shaft 21, and the torsion spring 22 is sleeved on the rotating shaft 21. Specifically, the cable protection tube is clamped by the elastic deformation of the torsion spring 22, and when the first clamping member After the cable protection tube with one end expanded is sleeved on the corresponding cylinder 30, the first irregular gear 6 meshes with the first gear 7 to horizontally displace the cable protection tube, and the first clamping plate 20 is rotated by squeezing. When the cable protection tube is out of the clamp, the first clamping plate 20 is reset by the elastic deformation of the torsion spring 22. Preferably, when the first clamping plate 20 and the first clamping block 19 move toward the transfer platform 46, one side of the first clamping plate 20 and the first clamping block 19 is inclined to facilitate clamping of the cable protection tube.

[0028] As a preferred technical solution, the second clamping member includes an L-shaped second clamping block 24, a second clamping plate 25 and a second irregular gear 26, the second irregular gear 26 is horizontally rotatably connected to the bottom end of the second clamping block 24, and the second clamping plate 25 is fixedly connected to the second irregular gear 26 and is integrally formed, the top of the second clamping block 24 and one side of the first connecting block 16 are respectively fixedly connected to the two ends of the first bracket 23, specifically, a transfer groove 48 is provided on the transfer platform 46, and a second rack 47 meshing with the second irregular gear 26 is horizontally arranged in the transfer groove 48. When the synchronous belt 10 rotates, the cable protection tube closest to the second clamping member is squeezed into between the second clamping block 24 and the second clamping plate 25 through the positioning member, and the first connecting block 1 The second clamping block 24 and the second clamping plate 25 are driven to move by the first bracket 23, and the second clamping block 24 and the second clamping plate 25 drive the clamped cable protection tube to move toward the transfer platform 46. The second clamping plate 25 is driven to rotate by the meshing between the second irregular gear 26 and the second rack 47, so as to release the clamping force on the lower side of the clamped cable protection tube. The clamped cable protection tube rolls into the transfer groove 48 by its own gravity, so as to facilitate the subsequent clamping and transfer of the cable protection tube by the second clamping member. The transfer platform 46 is provided with a first through hole 49 and a second through hole 50 which are communicated with the transfer groove 48. The first through hole 49 and the second through hole 50 are provided to adapt to the first clamping member and the second clamping member to avoid hindering the movement of the first clamping member and the second clamping member.

[0029] Working principle: The expander for producing the cable protection tube starts the motor 5, and the motor 5 drives the first irregular gear 6 to rotate. When the first irregular gear 6 is meshed with the first gear 7, the synchronous belt 10 rotates, driving the cable protection tube between the first clamping block 19 and the first clamping plate 20 to move horizontally, and the first clamping plate 20 is rotated by squeezing, so that the cable protection tube is disengaged from the clamping. At the same time, the cable protection tube closest to the second clamping member is squeezed into between the second clamping block 24 and the second clamping plate 25 through the positioning member. When the first irregular gear 6 is not meshed with the first gear 7, the synchronous belt 10 does not rotate, and the first clamping member and the second clamping member are in contact with each other. The holding member clamps the cable protection tube with one end expanded and moves toward the transfer platform 46 at the same time, and through the meshing between the second irregular gear 26 and the second rack 47, the second clamping plate 25 is driven to rotate, and the clamping force on the bottom of the clamped cable protection tube is released. The clamped cable protection tube rolls into the transfer groove 48 by its own gravity, which is convenient for the subsequent second clamping member to clamp and transfer it. The first clamping member clamps the cable protection tube with the expanded end closest to the transfer platform 46 through the elastic deformation of the torsion spring 22. In the process of the moving plate 11 moving toward the transfer platform 46, the first connecting block 1 The push rod 33 is slidably abutted against the push rod 33, so that the push rod 33 drives the slider 36 to move toward the abutment block 38, and the abutment block 38 drives the heating sleeve 44 and the flaring column 45 to move toward the first fixed plate 2 through the second connecting block 42 and the third connecting block 43, so that the two cable protection tubes are heated and flared respectively. When the first connecting block 16 is not in contact with the push rod 33, the slider 36 slides in the opposite direction through the elastic deformation of the first spring 35. When the slider 36 slides in the opposite direction, the abutment block 38 drives the heating sleeve 44 through the second connecting block 42 and the third connecting block 43 through the elastic deformation of the second spring 41. The cylinder 44 and the flaring column 45 slide in opposite directions. During the reverse movement of the movable plate 11, the meshing rotation between the second gear 18 and the first rack 28 causes the first clamping member to drive the clamped cable protection tube to rotate 180 degrees, so that the other end of the clamped cable protection tube can be subjected to the next heating and flaring process, thereby achieving flaring of both ends of the cable protection tube to meet the needs of society. At the same time, the two cable protection tubes can be flared and heated for a secondary time to improve the flaring effect and heating efficiency. The overall device has high working efficiency and can continuously operate to flare both ends of a batch of cable protection tubes.

[0030] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A expander for producing a cable protection tube, comprising a base (1), a synchronous belt (10) being intermittently rotatably connected to the base (1), a plurality of positioning members for positioning the cable protection tube being arranged at equal distances on the synchronous belt (10), an expanding column (45) and a heating sleeve (44) being synchronously slidably connected to the base (1), a first clamping member and a second clamping member being synchronously reciprocatingly slidably connected above the synchronous belt (10), a transfer platform (46) being arranged on the base (1), characterized in that: Also includes: A first transmission assembly, which is driven by the sliding movement of the first clamping member to cause the synchronous belt (10) to rotate intermittently; An adjusting component, which is used to rotate the first clamping member during the sliding process of the first clamping member; The second transmission assembly is driven by the sliding movement of the first clamping member to enable the expansion column (45) and the heating sleeve (44) to slide synchronously.

2. The expander for producing a cable protection tube according to claim 1, characterized in that: A first fixed plate (2) and a second fixed plate (3) are fixedly connected to the base (1); a driving roller (8) and a driven roller (9) are rotatably connected between the first fixed plate (2) and the second fixed plate (3); and the synchronous belt (10) is rotatably sleeved on the peripheral side surfaces of the driving roller (8) and the driven roller (9).

3. The expander for producing a cable protection tube according to claim 2, characterized in that: The first transmission assembly comprises a first gear (7) and a first irregular gear (6) meshing with the first gear (7); the first gear (7) and the first irregular gear (6) are rotatably connected to one side of a first fixed plate (2); one end of the first gear (7) is coaxially fixedly connected to one end of an active roller (8); a support plate (4) is fixedly connected to one side of the first fixed plate (2); a motor (5) is provided on the support plate (4); an output end of the motor (5) is coaxially fixedly connected to the first irregular gear (6).

4. The expander for producing a cable protection tube according to claim 3, characterized in that: The other end of the first irregular gear (6) is coaxially fixedly connected to a rotating rod (12), the rotating rod (12) is provided with two spiral grooves (13) connected end to end, the rotating rod (12) is reciprocatingly slidably connected to a moving plate (11), a protrusion (14) is provided in the moving plate (11), the two spiral grooves (13) are slidably matched with the protrusion (14), a first guide rod (15) is horizontally arranged on the other side of the first fixed plate (2), the moving plate (11) is slidably sleeved on the first guide rod (15), a first connecting block (16) is provided on the side of the moving plate (11) close to the first clamping member, a connecting rod (17) is provided between the first clamping member and the first connecting block (16), and the connecting rod (17) is rotatably connected to one side of the first connecting block (16).

5. The expander for producing a cable protection tube according to claim 4, characterized in that: The adjustment assembly comprises a second bracket (27), a first rack (28) and a second gear (18) meshing with the first rack (28); the second gear (18) is sleeved on the connecting rod (17); the second bracket (27) is fixedly connected to the base (1); the first rack (28) is horizontally fixedly connected to the top of the second bracket (27); and during the sliding process of the first clamping member, the first rack (28) has a meshing position meshing with the second gear (18).

6. The expander for producing a cable protection tube according to claim 4, characterized in that: The second transmission assembly comprises a push rod (33), a first spring (35), a slider (36), an abutment block (38), a second guide rod (40), a second spring (41), a second connection block (42) and a third connection block (43); a first slide groove (34) and a second slide groove (37) which is in communication with and perpendicular to the first slide groove (34) are provided in the second fixed plate (3); the push rod (33) and the slider (36) are horizontally slidably connected in the first slide groove (34); the abutment block (38) and the second connection block (42) are horizontally slidably connected in the second slide groove (37); the push rod (33) is inserted into one end of the slider (36); the first spring (35) is sleeved on the push rod (33); two ends of the first spring (35) are respectively fixedly connected to one end of the slider (36) close to the push rod (33) and the inner wall of the first slide groove (34); the other end of the slider (36) is connected to the One end of the abutment block (38) is slidably abutted, and the abutment block (38) is slidably sleeved on the second guide rod (40), and the second guide rod (40) is horizontally fixedly connected in the second slide groove (37). The second spring (41) is sleeved on the second guide rod (40), and the two ends of the second spring (41) are respectively fixedly connected to the other end of the abutment block (38) and the inner wall of the second slide groove (37). The second connecting block (42) is arranged between the bottom of the third connecting block (43) and the top of the abutment block (38), and the two ends of the third connecting block (43) are respectively fixedly connected to the heating sleeve (44) and the flaring column (45). The end of the abutment block (38) close to the slider (36) is inclined, and the end of the push rod (33) close to the first connecting block (16) is conical. The first connecting block (16) and the end of the push rod (33) away from the slider (36) are slidably abutted.

7. The expander for producing a cable protection tube according to claim 1, characterized in that: Each of the positioning members comprises a connecting plate (29), a cylinder (30), a first positioning groove (31) and a second positioning groove (32); the connecting plate (29) is arranged on the synchronous belt (10); the cylinder (30) is horizontally fixedly connected to one side of the connecting plate (29); the first positioning groove (31) and the second positioning groove (32) are both provided on one side of the connecting plate (29); and the inner diameter and the outer diameter of the first positioning groove (31) are both smaller than the inner diameter and the outer diameter of the second positioning groove (32).

8. The expander for producing a cable protection tube according to claim 4, characterized in that: The first clamping member comprises an L-shaped first clamping block (19), a first clamping plate (20), a rotating shaft (21) and a torsion spring (22); one side of the first clamping block (19) is fixedly connected to one end of the connecting rod (17); the rotating shaft (21) is arranged in the first clamping block (19); the first clamping plate (20) is rotatably sleeved on the rotating shaft (21); the torsion spring (22) is arranged between the first clamping plate (20) and the rotating shaft (21), and the torsion spring (22) is sleeved on the rotating shaft (21).

9. The expander for producing a cable protection tube according to claim 4, characterized in that: The second clamping member comprises an L-shaped second clamping block (24), a second clamping plate (25) and a second irregular gear (26); the second irregular gear (26) is horizontally rotatably connected to the bottom end of the second clamping block (24); the second clamping plate (25) and the second irregular gear (26) are fixedly connected and integrally formed; the top of the second clamping block (24) and one side of the first connecting block (16) are respectively fixedly connected to two ends of the first bracket (23).

10. The expander for producing a cable protection tube according to claim 9, characterized in that: The transfer platform (46) is provided with a transfer groove (48), a second rack (47) is horizontally arranged in the transfer groove (48) and meshes with the second irregular gear (26), and the transfer platform (46) is provided with a first through hole (49) and a second through hole (50) which are in communication with the transfer groove (48).

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