Traction equipment for aluminum alloy profile

Abstract

The utility model discloses traction equipment for aluminum alloy sections, which comprises a connecting support, a connecting base is connected to the end face of the connecting support, an adjustable traction structure is connected to the end face of the connecting base, and an adjustable guide structure is connected to the end face of the connecting base and located on one side of the adjustable traction structure. The adjustable traction structure is arranged in the traction equipment for the aluminum alloy profile, so that the distance between the first rotating roller and the second rotating roller is adjusted by utilizing the design that the adjusting electric cylinder in the adjustable traction structure passes through the transmission structure, and the distance between the first rotating roller and the second rotating roller can be adjusted according to the thickness of the aluminum alloy profile. And the distance between the first rotating roller and the second rotating roller is adjusted, so that the traction requirement of the aluminum alloy profile is met, the device is more convenient to use, and the problem that the distance between the first rotating roller and the second rotating roller cannot be adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of profile processing, in particular to a traction device used for aluminum alloy profiles. Background Art

[0002] Most of the current traction equipment is designed for specific profiles, making it inconvenient to adjust the distance between the first rotating roller and the second rotating roller and the distance between the guide wheels according to the thickness and width of the profile when the device is in use, making the device not very convenient to use. Utility Model Content

[0003] The utility model provides an automatic cleaning and sterilizing device for a saccharification tank to solve the above problems.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A traction device for aluminum alloy profiles, comprising a connecting bracket, a connecting base connected to the end surface of the connecting bracket, an adjustable traction structure connected to the end surface of the connecting base, an adjustable guide structure connected to the end surface of the connecting base and located on one side of the adjustable traction structure, and a controller connected to the side wall of the connecting base;

[0006] The adjustable traction structure includes two groups of fixed boxes connected, the two groups of fixed boxes are connected to a connecting base, a rotating motor is connected to the side wall of the fixed box on the right side, the driving end of the rotating motor is connected to a driving rod through a coupling, two groups of driving worms are symmetrically connected to the side wall of the driving rod, the side walls of the two groups of driving worms are meshed and connected with driven worm gears, the center of the driven worm gear is connected with a rotating rod, the side wall of the rotating rod is connected with a connecting box and a moving box, and the side wall of the rotating rod and located in the inner cavity of the connecting box are meshed and connected with a driven bevel gear through a driving bevel gear. The center of the driven bevel gear is connected to the first rotating roller, and the side wall of the rotating rod and the inner cavity of the moving box are connected with a transmission bevel gear through the rotating bevel gear meshing, and the center of the transmission bevel gear is connected to the second rotating roller, and the end surfaces of the two groups of moving boxes are connected with fixed connecting plates, and the end surfaces of the connecting base and the upper part of the fixed connecting plate are connected with a fixed bracket, and the end surface of the fixed bracket is connected with an adjusting electric cylinder, and the driving end of the adjusting electric cylinder is connected to the end surface of the fixed connecting plate, and the end surfaces of the fixed connecting plate and the two sides of the adjusting electric cylinder are symmetrically connected with limiting sliding rods.

[0007] The adjustable guide structure includes a fixed shell, the fixed shell is connected to the end face of the connecting base, the side wall of the fixed shell is connected to the adjusting motor through a connecting box, the driving end of the adjusting motor is connected to the adjusting screw through a coupling, the side wall of the adjusting screw is symmetrically connected to a movable slider, the movable slider and the two sides of the adjusting screw are symmetrically connected to a fixed slide rod, the two ends of the fixed slide rod are connected to the side wall of the inner cavity of the fixed shell, the side walls of the two groups of the movable sliders are symmetrically connected to a rotating connecting rod through a rotating shaft, the other end of the rotating connecting rod is rotatably connected to a movable connecting plate through a rotating shaft, multiple groups of connecting connecting rods are connected to the end face of the movable connecting plate, and the side wall of the connecting connecting rod is rotatably connected to a guide wheel through a bearing.

[0008] As a preferred solution of the utility model, the rotating motor is connected to the controller through a wire and the connection method is electrical connection, and the driving rod is connected to the side wall of the fixed box through a bearing seat, wherein the connection method between the driving rod and the bearing seat is rotational connection.

[0009] As a preferred solution of the utility model, the rotating rod is connected to the end face of the connecting base through a bearing seat, wherein the connection method of the rotating rod and the bearing seat is a rotational connection, and the first rotating roller is connected to the side wall of the connecting box through the bearing seat, wherein the connection method of the first rotating roller and the bearing seat is a rotational connection.

[0010] As a preferred solution of the utility model, the cross-section of the rotating rod is a hexagonal structure, and a connecting hole is opened at the center of the rotating bevel gear and corresponding to the rotating rod, wherein the rotating rod and the connecting hole are connected in a sliding manner, and the second rotating roller is connected to the side wall of the movable box through a bearing seat, wherein the second rotating roller and the bearing seat are connected in a rotating manner.

[0011] As a preferred solution of the utility model, bearing seats are arranged on the upper and lower end surfaces of the movable box body and correspond to the rotating rod, wherein the rotating rod and the bearing seats are connected in a movable manner, the adjusting electric cylinder is connected to the controller through a wire and the connection method is an electrical connection, and a connecting hole is opened on the end surface of the fixed bracket and corresponds to the limiting slide rod, wherein the limiting slide rod and the connecting hole are connected in a sliding manner.

[0012] As a preferred solution of the utility model, the adjusting motor is connected to the controller through a wire and the connection method is electrical connection, the adjusting screw is connected to the side wall of the fixed shell through a bearing seat, wherein the connection method of the adjusting screw and the bearing seat is a rotational connection, and the adjusting screw is spliced ​​by a section of left-handed screw and a section of right-handed screw.

[0013] As a preferred solution of the utility model, the connection method between the adjusting screw and the movable slider is a threaded connection, a connecting hole is provided on the movable slider and corresponds to the fixed slide rod, wherein the connection method between the fixed slide rod and the connecting hole is a sliding connection, and a sliding groove is provided on the end surface of the fixed shell and corresponds to the connecting rod, wherein the connection method between the connecting rod and the sliding groove is a sliding connection.

[0014] The utility model utilizes the design that the adjustment electric cylinder in the adjustable traction structure is adjusted through the transmission structure to adjust the distance between the first rotating roller and the second rotating roller, so that during the use of the traction equipment for aluminum alloy profiles, the distance between the first rotating roller and the second rotating roller can be adjusted according to the thickness of the aluminum alloy profiles, thereby meeting the traction requirements of the aluminum alloy profiles, making the device more convenient during use.

[0015] The utility model utilizes the design of adjusting the distance between the guide wheels by using the adjusting motor in the adjustable guide structure through the transmission structure, so that during the use of the traction equipment for aluminum alloy profiles, the distance between the guide wheels can be adjusted according to the width of the aluminum alloy profiles, thereby meeting the traction requirements of the aluminum alloy profiles, making the device more convenient to use, thereby solving the problem that the distance between the guide wheels cannot be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front and side structures of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the adjustable traction structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of some structures;

[0019] Figure 4 This is a schematic diagram of the structure of the adjustable guide structure of the utility model;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of some structures.

[0021] In the figure: 1, connecting bracket; 2, connecting base; 3, adjustable traction structure; 4, adjustable guide structure; 5, controller; 301, fixed box; 302, rotating motor; 303, driving rod; 304, driving worm; 305, driven worm gear; 306, rotating rod; 307, connecting box; 308, moving box; 309, driving bevel gear; 310, driven bevel gear; 311, first rotating roller; 312, rotating bevel gear; 313, transmission bevel gear; 314, second rotating roller; 315, fixed connecting plate; 316, fixed bracket; 317, adjusting electric cylinder; 318, limiting slide rod; 401, fixed housing; 402, adjusting motor; 403, adjusting screw rod; 404, moving slider; 405, fixed slide rod; 406, rotating connecting rod; 407, moving connecting plate; 408, connecting connecting rod; 409, guide wheel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] For example, please refer to Figure 1-5 , the utility model provides a technical solution:

[0024] A traction device for aluminum alloy profiles, comprising a connecting bracket 1, a connecting base 2 is connected to the end surface of the connecting bracket 1, an adjustable traction structure 3 is connected to the end surface of the connecting base 2, an adjustable guide structure 4 is connected to the end surface of the connecting base 2 and located on one side of the adjustable traction structure 3, and a controller 5 is connected to the side wall of the connecting base 2;

[0025] In this embodiment, reference Figure 1 , Figure 2 and Figure 3The adjustable traction structure 3 includes two sets of fixed boxes 301 connected, the two sets of fixed boxes 301 are connected to the connecting base 2, a rotating motor 302 is connected to the side wall of the fixed box 301 on the right side, the driving end of the rotating motor 302 is connected to the driving rod 303 through a coupling, two sets of driving worms 304 are symmetrically connected to the side wall of the driving rod 303, the side walls of the two sets of driving worms 304 are meshed with driven worm gears 305, the center of the driven worm gear 305 is connected with a rotating rod 306, the side wall of the rotating rod 306 is connected to a connecting box 307 and a movable box 308, the side wall of the rotating rod 306 and located in the inner cavity of the connecting box 307 is meshed with a driven bevel gear 310 through a driving bevel gear 309, The center of the driven bevel gear 310 is connected to the first rotating roller 311, and a transmission bevel gear 313 is meshed and connected to the side wall of the rotating rod 306 and located in the inner cavity of the moving box 308 through a rotating bevel gear 312, and a second rotating roller 314 is connected to the center of the transmission bevel gear 313. The end faces of the two groups of moving boxes 308 are connected to fixed connecting plates 315, and a fixed bracket 316 is connected to the end face of the connecting base 2 and located above the fixed connecting plate 315. An adjusting electric cylinder 317 is connected to the end face of the fixed bracket 316, and the driving end of the adjusting electric cylinder 317 is connected to the end face of the fixed connecting plate 315. The end face of the fixed connecting plate 315 and the two sides of the adjusting electric cylinder 317 are symmetrically connected to the limit sliding rods 318.

[0026] Based on the above structure and the connection relationship of the above structure, the operation of the adjusting electric cylinder 317 is controlled by the controller 2. When the driving end of the adjusting electric cylinder 317 moves downward, the second rotating roller 314 is driven to move downward, so that the second rotating roller 314 and the first rotating roller 311 clamp the aluminum alloy profile.

[0027] Further, the operation of the rotating motor 302 is controlled by the controller 2. When the driving end of the rotating motor 302 rotates, it sequentially drives the driving rod 303, the driving worm 304, the driven worm gear 305, the rotating rod 306, the driving bevel gear 309, the driven bevel gear 310, the first rotating roller 311, the rotating bevel gear 312, the transmission bevel gear 313, and the second rotating roller 314, so that the first rotating roller 311 and the second rotating roller 314 rotate in opposite directions, thereby pulling the aluminum alloy profile;

[0028] Furthermore, the rotating motor 302 is connected to the controller 5 via a wire and the connection mode is an electrical connection, and the adjusting electric cylinder 317 is connected to the controller 5 via a wire and the connection mode is an electrical connection, and the operation of the rotating motor 302 and the adjusting electric cylinder 317 is controlled by the controller 5;

[0029] Further, the driving rod 303 is connected to the side wall of the fixed box 301 through the bearing seat, wherein the driving rod 303 is connected to the bearing seat in a rotational connection, the rotating rod 306 is connected to the end surface of the connecting base 2 through the bearing seat, wherein the rotating rod 306 is connected to the bearing seat in a rotational connection, the first rotating roller 311 is connected to the side wall of the connecting box 307 through the bearing seat, wherein the first rotating roller 311 is connected to the bearing seat in a rotational connection, the cross section of the rotating rod 306 is a hexagonal structure, and a connecting hole is opened at the center of the rotating bevel gear 312 and corresponding to the rotating rod 306. The connection mode between the rotating rod 306 and the connection hole is a sliding connection, the second rotating roller 314 is connected to the side wall of the movable box 308 through a bearing seat, the connection mode between the second rotating roller 314 and the bearing seat is a rotating connection, the upper and lower end surfaces of the movable box 308 are provided with bearing seats corresponding to the rotating rod 306, the connection mode between the rotating rod 306 and the bearing seat is a movable connection, and a connection hole is provided on the end surface of the fixed bracket 316 and corresponding to the limiting slide bar 318, the connection mode between the limiting slide bar 318 and the connection hole is a sliding connection, so that the device is more convenient in use;

[0030] In this embodiment, reference Figure 1 , Figure 4 and Figure 5 The adjustable guide structure 4 includes a fixed shell 401, which is connected to the end surface of the connecting base 2. The side wall of the fixed shell 401 is connected to the adjusting motor 402 through a connecting box. The driving end of the adjusting motor 402 is connected to an adjusting screw 403 through a coupling. A movable slider 404 is symmetrically connected to the side wall of the adjusting screw 403. Fixed slide bars 405 are symmetrically connected to the movable slider 404 and located on both sides of the adjusting screw 403. Both ends of the fixed slide bars 405 are connected to the side walls of the inner cavity of the fixed shell 401. The side walls of the two groups of movable sliders 404 are symmetrically connected to rotating connecting rods 406 through rotating shafts. The other end of the rotating connecting rod 406 is rotatably connected to a movable connecting plate 407 through a rotating shaft. Multiple groups of connecting connecting rods 408 are connected to the end surface of the movable connecting plate 407. The side wall of the connecting connecting rod 408 is rotatably connected to a guide wheel 409 through a bearing.

[0031] Based on the above structure and the connection relationship of the above structure, the operation of the adjusting motor 402 is controlled by the controller 2. When the driving end of the adjusting motor 402 rotates, the adjusting screw 403 is driven to rotate in turn. When the adjusting screw 403 rotates, the two groups of moving sliders 404 move in opposite directions along the side wall of the adjusting screw 403. When the two groups of moving sliders 404 move in opposite directions along the side wall of the adjusting screw 403, the two groups of connecting rods 408 are driven to move closer to the middle, so that the guide wheel 409 contacts the side wall of the aluminum alloy profile; the adjusting motor 402 is connected to the controller 5 through a wire and the connection method is electrical connection. The operation of the adjusting motor 402 is controlled by the controller 5.

[0032] The adjusting screw 403 is connected to the side wall of the fixed shell 401 through a bearing seat, wherein the adjusting screw 403 and the bearing seat are connected in a rotating manner, and the adjusting screw 403 is spliced ​​by a section of left-handed screw and a section of right-handed screw. The adjusting screw 403 and the movable slider 404 are connected in a threaded manner, and a connecting hole is provided on the movable slider 404 corresponding to the fixed slide rod 405, wherein the fixed slide rod 405 and the connecting hole are connected in a sliding manner, and a sliding groove is provided on the end surface of the fixed shell 401 corresponding to the connecting link 408, wherein the connecting link 408 and the sliding groove are connected in a sliding manner, which makes the device more convenient during use.

[0033] When the utility model is used, the device is first connected to the power supply so that the device is in a working state. Then, according to the width of the aluminum alloy profile, the adjusting motor 402 is started under the condition that the adjusting motor 402 is connected to the controller 5 through a wire and the connection method is an electrical connection, so that the driving end of the adjusting motor 402 rotates, and the adjusting screw rod 403 is connected to the side wall of the fixed shell 401 through a bearing seat, and the connection method of the adjusting screw rod 403 and the bearing seat is a rotational connection, which drives the adjusting screw rod 403 to rotate. The adjusting screw rod 403 is spliced ​​by a section of left-handed screw rod and a section of right-handed screw rod, and the connection method of the adjusting screw rod 403 and the movable slider 404 is a threaded connection. The movable slider 404 is provided with a connecting hole corresponding to the fixed slider 405, and the fixed slider 405 is connected to the movable slider 404. The connection mode of the connecting hole is a sliding connection, which drives the two groups of movable sliders 404 to move in opposite directions on the side walls of the adjusting screw rod 403. The side walls of the two groups of movable sliders 404 are symmetrically connected with rotating links 406 through a rotating shaft. The other end of the rotating link 406 is rotatably connected with a movable connecting plate 407 through a rotating shaft. A plurality of groups of connecting links 408 are connected to the end surface of the movable connecting plate 407. A guide wheel 409 is rotatably connected to the side wall of the connecting link 408 through a bearing. A sliding groove is provided on the end surface of the fixed shell 401 and corresponds to the connecting link 408. The connection mode of the connecting link 408 and the sliding groove is a sliding connection, which drives the two groups of connecting links 408 to move closer to the middle under the condition of sliding connection, and at the same time makes the guide wheel 409 contact with the side wall of the aluminum alloy profile.

[0034] When the adjusting electric cylinder 317 is connected to the controller 5 through a wire and the connection method is electrical connection, the adjusting electric cylinder 317 is started, so that the driving end of the adjusting electric cylinder 317 moves downward, and a connecting hole is opened on the end surface of the fixed bracket 316 and corresponds to the limiting slide bar 318, wherein the limiting slide bar 318 is connected to the connecting hole in a sliding manner, and bearing seats are arranged on the upper and lower end surfaces of the movable box 308 and correspond to the rotating rod 306, wherein the rotating rod 306 is connected to the bearing seat in an active manner, and the cross-section of the rotating rod 306 is a hexagonal structure, and a connecting hole is opened at the center of the rotating bevel gear 312 and corresponds to the rotating rod 306, wherein the rotating rod 306 is connected to the connecting hole in a sliding manner, driving the second rotating roller 314 to move downward, so that the second rotating roller 314 and the first rotating roller 311 clamp the aluminum alloy profile.

[0035] The rotating motor 302 is started under the condition that the rotating motor 302 is connected to the controller 5 through a wire and the connection mode is an electrical connection, so that the driving end of the rotating motor 302 rotates, and the driving rod 303 is connected to the side wall of the fixed box body 301 through a bearing seat, and the driving rod 303 is driven to rotate under the condition that the connection mode between the driving rod 303 and the bearing seat is a rotational connection. When the driving rod 303 rotates, it drives the driving worm 304 to rotate. Under the condition that the side walls of the two sets of driving worms 304 are meshed and connected with the driven worm gear 305, the driven worm gear 305 is driven to rotate. The rotating rod 306 is connected to the end surface of the connecting base 2 through the bearing seat, and the rotating rod 306 and the bearing seat are connected. The connection method of the seat is to drive the rotating rod 306 to rotate under the condition of rotational connection. When the rotating rod 306 rotates, a driven bevel gear 310 is meshed and connected through a driving bevel gear 309 on the side wall of the rotating rod 306 and in the inner cavity of the connecting box 307. The center of the driven bevel gear 310 is connected to a first rotating roller 311. A transmission bevel gear 313 is meshed and connected through a rotating bevel gear 312 on the side wall of the rotating rod 306 and in the inner cavity of the moving box 308. The center of the transmission bevel gear 313 is connected to a second rotating roller 314, which drives the first rotating roller 311 and the second rotating roller 314 to rotate in opposite directions, thereby pulling the aluminum alloy profile.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traction device for aluminum alloy profiles, comprising a connecting bracket (1), characterized in that: The end surface of the connecting bracket (1) is connected to a connecting base (2), the end surface of the connecting base (2) is connected to an adjustable traction structure (3), the end surface of the connecting base (2) and one side of the adjustable traction structure (3) is connected to an adjustable guide structure (4), and the side wall of the connecting base (2) is connected to a controller (5); The adjustable traction structure (3) comprises two groups of fixed boxes (301) connected, the two groups of fixed boxes (301) are connected to the connection base (2), a rotating motor (302) is connected to the side wall of the fixed box (301) on the right side, the driving end of the rotating motor (302) is connected to a driving rod (303) via a coupling, two groups of driving worms (304) are symmetrically connected to the side wall of the driving rod (303), the side walls of the two groups of driving worms (304) are meshedly connected to driven worm gears (305), a rotating rod (306) is connected at the center of the driven worm gear (305), a connecting box (307) and a movable box (308) are connected to the side wall of the rotating rod (306), and a driven bevel gear (310) is meshedly connected to the side wall of the rotating rod (306) and located in the inner cavity of the connecting box (307) via a driving bevel gear (309). ), the center of the driven bevel gear (310) is connected to a first rotating roller (311), a transmission bevel gear (313) is meshed and connected to the side wall of the rotating rod (306) and is located in the inner cavity of the moving box (308) through a rotating bevel gear (312), and a second rotating roller (314) is connected to the center of the transmission bevel gear (313), fixed connecting plates (315) are connected to the end surfaces of the two groups of moving boxes (308), a fixed bracket (316) is connected to the end surface of the connecting base (2) and located above the fixed connecting plate (315), an adjusting electric cylinder (317) is connected to the end surface of the fixed bracket (316), a driving end of the adjusting electric cylinder (317) is connected to the end surface of the fixed connecting plate (315), and limiting sliding rods (318) are symmetrically connected to the end surface of the fixed connecting plate (315) and located on both sides of the adjusting electric cylinder (317).

2. The traction device for aluminum alloy profiles according to claim 1, characterized in that: The adjustable guide structure (4) comprises a fixed housing (401), the fixed housing (401) being connected to the end surface of the connection base (2), the side wall of the fixed housing (401) being connected to an adjusting motor (402) via a connection box, the driving end of the adjusting motor (402) being connected to an adjusting screw (403) via a coupling, the side wall of the adjusting screw (403) being symmetrically connected to a moving slider (404), and the moving slider (404) being symmetrically connected to fixed The sliding rod (405) has two ends connected to the side walls of the inner cavity of the fixed shell (401), and the side walls of the two groups of movable sliding blocks (404) are symmetrically connected to rotating connecting rods (406) through rotating shafts, and the other end of the rotating connecting rod (406) is connected to a movable connecting plate (407) through a rotating shaft, and multiple groups of connecting connecting rods (408) are connected to the end surface of the movable connecting plate (407), and the side wall of the connecting connecting rod (408) is connected to a guide wheel (409) through a bearing.

3. The traction device for aluminum alloy profiles according to claim 1, characterized in that: The rotating motor (302) is connected to the controller (5) via a wire and the connection method is an electrical connection. The driving rod (303) is connected to the side wall of the fixed box (301) via a bearing seat, wherein the connection method between the driving rod (303) and the bearing seat is a rotational connection.

4. The traction device for aluminum alloy profiles according to claim 1, characterized in that: The rotating rod (306) is connected to the end surface of the connecting base (2) via a bearing seat, wherein the rotating rod (306) and the bearing seat are connected in a rotating manner, and the first rotating roller (311) is connected to the side wall of the connecting box (307) via the bearing seat, wherein the first rotating roller (311) and the bearing seat are connected in a rotating manner.

5. The traction device for aluminum alloy profiles according to claim 1, characterized in that: The cross section of the rotating rod (306) is a hexagonal structure, a connecting hole is provided at the center of the rotating bevel gear (312) and corresponding to the rotating rod (306), wherein the rotating rod (306) and the connecting hole are connected in a sliding manner, and the second rotating roller (314) is connected to the side wall of the moving box (308) via a bearing seat, wherein the second rotating roller (314) and the bearing seat are connected in a rotating manner.

6. The traction device for aluminum alloy profiles according to claim 1, characterized in that: Bearing seats are provided on the upper and lower end surfaces of the movable box (308) and correspond to the rotating rod (306), wherein the rotating rod (306) and the bearing seats are connected in a movable manner, the adjusting electric cylinder (317) is connected to the controller (5) via a wire and the connection is electrically connected, and a connecting hole is provided on the end surface of the fixed bracket (316) and corresponds to the limiting slide rod (318), wherein the limiting slide rod (318) and the connecting hole are connected in a sliding manner.

7. The traction device for aluminum alloy profiles according to claim 2, characterized in that: The adjusting motor (402) is connected to the controller (5) via a wire and the connection method is electrical connection. The adjusting screw (403) is connected to the side wall of the fixed housing (401) via a bearing seat, wherein the connection method of the adjusting screw (403) and the bearing seat is rotational connection. The adjusting screw (403) is composed of a section of left-handed screw and a section of right-handed screw.

8. The traction device for aluminum alloy profiles according to claim 2, characterized in that: The adjusting screw rod (403) and the movable slider (404) are connected by threaded connection. A connecting hole is provided on the movable slider (404) and corresponds to the fixed slider (405), wherein the fixed slider (405) and the connecting hole are connected by sliding connection. A sliding groove is provided on the end surface of the fixed housing (401) and corresponds to the connecting rod (408), wherein the connecting rod (408) and the sliding groove are connected by sliding connection.

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