A constant gravity traction machine

Abstract

This invention discloses a constant-gravity traction machine with a clamp that can move relative to the compression direction, comprising a first and a second traction trolley. Each trolley is equipped with an adjustment frame, on which a traction component is slidably mounted via a guide rail. The traction component includes a traction block driven to rotate by a drive component, and a tension sensor is integrated on the traction block. Each trolley is equipped with a drive component for driving the traction component to slide along the adjustment frame. A wheel-type drive mechanism on the trolley enables overall movement. During operation, the tension sensor detects the tension of the thin profile on the traction block in real time and transmits it to the control system. The system calculates the actual traction force and compares it with the set value, dynamically adjusting the position of the traction component relative to the trolley, thereby compensating for and stabilizing the traction force in real time. This achieves closed-loop precise control of the traction force, effectively preventing problems such as deformation and dimensional inconsistencies in the thin profile caused by tension fluctuations, and significantly improving product quality and yield.

Description

Technical Field

[0001] This invention relates to the field of lightweight profile traction equipment technology, and more specifically, to a constant gravity traction machine. Background Technology

[0002] On continuous profile production lines, especially for thin-walled and small profiles, traction machines are key devices used to smoothly pull the formed thin profiles from the mold exit to subsequent cutting or winding equipment. Traditional traction machines usually use clamps or traction blocks fixedly installed on the traction trolley to directly clamp the thin profiles for traction.

[0003] In actual traction processes, due to inertial impacts during the start-up, stop, or speed change of the traction machine, as well as factors such as the material properties and temperature changes of the thin profiles themselves, the directly fixed traction method is prone to sudden changes or fluctuations in the traction force applied to the thin profiles. When the traction force is too large, it is easy to stretch, thinn, or even break the thin profiles that have not been fully cooled or shaped, resulting in product dimensional deviations, surface defects, or internal structural damage, leading to product defects and a decrease in yield. In addition, traditional traction machines are difficult to achieve real-time detection and precise control of traction force, and cannot meet the process requirements of constant and stable traction force in the production of thin profiles. Therefore, it is necessary to design a traction device that can achieve constant gravitational traction, prevent deformation of thin profiles, and improve product quality and yield. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a constant gravity traction machine to solve the problems existing in the background technology.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a constant gravity traction machine, comprising: a first traction trolley and a second traction trolley; a first adjusting frame is disposed on the first traction trolley near the second traction trolley, and a first traction component is slidably disposed on the first adjusting frame; a second adjusting frame is disposed on the second traction trolley near the first traction trolley, and a second traction component is slidably disposed on the second adjusting frame; the first traction component and the second traction component cooperate to achieve traction of a thin profile; a first guide rail is disposed on the first adjusting frame for guiding the first traction component, and the first traction component is slidably connected to the first guide rail. The second adjusting frame is provided with a second guide rail for guiding the second traction component, and the second traction component is slidably connected to the second guide rail; the first traction trolley is provided with a first drive component for adjusting the relative position of the first traction component and the first adjusting frame, and the output end of the first drive component is drivenly connected to the first traction component; the second traction trolley is provided with a second drive component for adjusting the relative position of the second traction component and the second adjusting frame, and the output end of the second drive component is drivenly connected to the second traction component; the bottom of the first traction trolley and the second traction trolley are respectively provided with a third drive component for movement.

[0006] Optionally, the first traction assembly includes: a first movable frame, a first lifting frame, a first traction block, a first traction plate for cooperating with the first traction block to traction the thin profile, a first driving member for driving the first traction block to rotate, and a second driving member for driving the first lifting frame to lift; the first movable frame is slidably connected to the first guide rail; a first transmission member is provided on one end of the first movable frame near the first guide rail; a first transmission groove is provided on the first adjusting frame, and one end of the first transmission member passes through the first transmission groove and is drivenly connected to the output end of the first driving assembly; the first lifting frame is slidably connected to the first movable frame; the second driving member is detachably connected to the first movable frame; the driving end of the second driving member is drivenly connected to the first lifting frame; the first traction block is rotatably connected to the first lifting frame; the first traction plate is detachably connected to the first lifting frame and is located below the first traction block; the first traction block and the first traction plate cooperate to form a first traction area for clamping one end of the thin profile; the first driving member is detachably connected to the first lifting frame, and the output end of the first driving member is drivenly connected to the first traction block.

[0007] Optionally, the first drive assembly includes: a third drive member and a first transmission chain; the third drive member is detachably connected to the first traction trolley, and the output end of the third drive member is fixedly connected to the first transmission chain; the first transmission member is drively connected to the first transmission chain.

[0008] Optionally, the cross-section of the first traction block is arc-shaped, and the arc-shaped bottom of the first traction block is aligned with the thin profile to pull the thin profile without damaging it.

[0009] Optionally, the second traction assembly includes: a second movable frame, a second lifting frame, a second traction block, a second traction plate for cooperating with the second traction block to traction the thin profile, a fourth driving member for driving the second traction block to rotate, and a fifth driving member for driving the first lifting frame to lift; the second movable frame is slidably connected to the second guide rail; a second transmission member is provided on one end of the second movable frame near the second guide rail; a second transmission groove is provided on the second adjusting frame, and one end of the second transmission member passes through the second transmission groove and is drivenly connected to the output end of the second driving assembly; the second lifting frame is slidably connected to the second movable frame; the fifth driving member is detachably connected to the second movable frame; the driving end of the fifth driving member is drivenly connected to the second lifting frame; the second traction block is rotatably connected to the second lifting frame; the second traction plate is detachably connected to the second lifting frame and is located below the second traction block; the second traction block and the second traction plate cooperate to form a second traction area for clamping the other end of the thin profile; the fourth driving member is detachably connected to the first lifting frame, and the output end of the fourth driving member is drivenly connected to the second traction block.

[0010] Optionally, the second drive assembly includes: a sixth drive member and a second transmission chain; the fourth drive member is detachably connected to the second traction trolley, and the output end of the sixth drive member is fixedly connected to the second transmission chain; the second transmission member is drively connected to the second transmission chain.

[0011] Optionally, the cross-section of the second traction block is arc-shaped, and the arc-shaped bottom of the second traction block is aligned with the thin profile to pull the thin profile without damaging it.

[0012] Optionally, the first and second adjusting frames are respectively provided with a first limiting block and a second limiting block for limiting; the first limiting block and the second limiting block on the first adjusting frame can respectively abut against the first traction component; the first limiting block and the second limiting block on the second adjusting frame can respectively abut against the second traction component.

[0013] Optionally, the first traction block is provided with a first tension sensor for detecting the traction deformation force of the thin profile.

[0014] Optionally, the first traction block is provided with a second tension sensor for detecting the traction deformation force of the thin profile.

[0015] In summary, the present invention has the following beneficial effects: 1. The traction component is designed as a dynamic mechanism that can slide independently of the traction trolley, and a tension sensor is directly integrated into the traction block. This design establishes a closed-loop control system for sensing, feedback, and execution. The tension sensor can detect the positive tension of the thin profile on the traction block in real time and directly; this signal is the most direct and sensitive reflection of the traction force. The built-in or external control system calculates the actual traction force on the thin profile in real time based on this signal and compares it with the preset constant gravitational force target value. Once it is detected that the traction force deviates from the set value due to the inertia of the traction trolley, speed fluctuations, or external interference, The control system immediately drives the first and second drive components to adjust the position of the traction component relative to the traction trolley. When the traction force is too large, the control system slightly moves the traction component in the opposite direction to the movement of the trolley to instantly buffer the tension. When the traction force is too small, the control system slightly moves the traction component in the same direction to increase the tension. This dynamic adjustment process has a fast response speed and high control precision, and can continuously stabilize the traction force within the preset constant range. It solves the problem of tensile deformation, dimensional deviation or internal damage caused by sudden changes or fluctuations in traction force to thin profiles, and solves the long-standing technical problems of traditional fixed traction machines.

[0016] 2. To address the vulnerability of thin and lightweight profiles to damage, clamping structures consisting of a traction block and a traction plate are incorporated into both the first and second traction components. The traction block features an arc-shaped cross-section, with its arc-shaped bottom contacting the profile to effectively distribute clamping stress and prevent indentations or scratches on the profile surface. The traction plate is located below the traction block, forming a clamping area together with the block to provide a stable and reliable clamping force on the profile. This design ensures clamping stability during the traction process while preventing damage to the surface of thin and lightweight profiles, significantly improving the surface quality of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a front view schematic diagram of the specific structure of the first traction trolley of the present invention; Figure 3 This is a side view schematic diagram of the specific structure of the first traction trolley of the present invention.

[0018] In the diagram: 1. First traction trolley; 2. Second traction trolley; 3. First adjusting frame; 31. First guide rail; 32. First transmission groove; 4. Second adjusting frame; 41. Second guide rail; 5. First traction assembly; 51. First moving frame; 52. First traction block; 53. First driving component; 54. First transmission component; 55. First driving component; 56. First lifting frame; 57. First traction plate; 58. Second driving component; 59. First traction area; 6. Second traction assembly; 7. First driving assembly; 71. Third driving component; 72. First transmission chain; 8. First limiting block; 9. Second limiting block; 10. Third driving assembly. Detailed Implementation

[0019] To make the objectives, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0021] In this invention, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] This invention provides a constant gravity traction machine, such as Figure 1 As shown, it includes: a first traction trolley 1 and a second traction trolley 2; a first adjusting frame 3 is provided on the first traction trolley 1 near the second traction trolley 2, and a first traction component 5 is slidably disposed on the first adjusting frame 3; a second adjusting frame 4 is provided on the second traction trolley 2 near the first traction trolley 1, and a second traction component 6 is slidably disposed on the second adjusting frame 4; the first traction component 5 and the second traction component 6 cooperate to achieve traction of the thin profile; a first guide rail 31 is provided on the first adjusting frame 3 for guiding the first traction component 5, and the first traction component 5 is slidably connected to the first guide rail 31; the second adjusting frame 4 is provided with a guide rail 31 for guiding the first traction component 5. A second guide rail 41 guides the second traction component 6, and the second traction component 6 is slidably connected to the second guide rail 41; a first drive component 7 is provided on the first traction trolley 1 for adjusting the relative position of the first traction component 5 and the first adjusting frame 3, and the output end of the first drive component 7 is drivenly connected to the first traction component 5; a second drive component is provided on the second traction trolley 2 for adjusting the relative position of the second traction component 6 and the second adjusting frame 4, and the output end of the second drive component is drivenly connected to the second traction component 6; a third drive component 10 for movement is provided at the bottom of the first traction trolley 1 and the second traction trolley 2 respectively.

[0024] Optionally, the first traction assembly 5 includes: a first movable frame 51, a first lifting frame 56, a first traction block 52, a first traction plate 57 for cooperating with the first traction block 52 to traction the thin profile, a first driving member 55 for driving the first traction block 52 to rotate, and a second driving member 58 for driving the first lifting frame 56 to lift; the first movable frame 51 is slidably connected to the first guide rail 31; a first transmission member 54 is provided on one end of the first movable frame 51 near the first guide rail 31; a first transmission groove 32 is provided on the first adjusting frame 3, and one end of the first transmission member 54 passes through the first transmission groove 32 and transmits power to the output end of the first driving assembly 7. The first lifting frame 56 and the first movable frame 51 are slidably connected; the second driving member 58 is detachably connected to the first movable frame 51; the driving end of the second driving member 58 is drivenly connected to the first lifting frame 56; the first traction block 52 is rotatably connected to the first lifting frame 56; the first traction plate 57 is detachably connected to the first lifting frame 56 and is located below the first traction block 52; the first traction block 52 and the first traction plate 57 cooperate to form a first traction area 59 for clamping one end of the thin profile; the first driving member 55 is detachably connected to the first lifting frame 56, and the output end of the first driving member 55 is drivenly connected to the first traction block 52.

[0025] Optionally, the first drive assembly 7 includes: a third drive member 71 and a first transmission chain 72; the third drive member 71 is detachably connected to the first traction trolley 1, and the output end of the third drive member 71 is fixedly connected to the first transmission chain 72; the first transmission member 54 is drively connected to the first transmission chain 72.

[0026] Optionally, the cross-section of the first traction block 52 is arc-shaped, and the arc-shaped bottom of the first traction block 52 is aligned with the thin profile to pull the thin profile without damaging it.

[0027] Optionally, the second traction assembly 6 includes: a second movable frame, a second lifting frame, a second traction block, a second traction plate for cooperating with the second traction block to traction the thin profile, a fourth driving member for driving the second traction block to rotate, and a fifth driving member for driving the first lifting frame 56 to lift; the second movable frame is slidably connected to the second guide rail 41; a second transmission member is provided on one end of the second movable frame near the second guide rail 41; a second transmission groove is provided on the second adjusting frame 4, and one end of the second transmission member passes through the second transmission groove and connects with the output of the second driving assembly. The system includes: an end drive connection; a slidable connection between the second lifting frame and the second movable frame; a detachable connection between the fifth drive member and the second movable frame; a drive end of the fifth drive member being drivenly connected to the second lifting frame; a rotatable connection between the second traction block and the second lifting frame; a detachable connection between the second traction plate and the second lifting frame, located below the second traction block; the second traction block and the second traction plate cooperating to form a second traction area for clamping the other end of the thin profile; and a detachable connection between the fourth drive member and the first lifting frame 56, with the output end of the fourth drive member being drivenly connected to the second traction block.

[0028] Optionally, the second drive assembly includes: a sixth drive member and a second transmission chain; the fourth drive member is detachably connected to the second traction trolley 2, and the output end of the sixth drive member is fixedly connected to the second transmission chain; the second transmission member is driven by the second transmission chain.

[0029] Optionally, the cross-section of the second traction block is arc-shaped, and the arc-shaped bottom of the second traction block is aligned with the thin profile to pull the thin profile without damaging it.

[0030] Optionally, the first adjusting frame 3 and the second adjusting frame 4 are respectively provided with a first limiting block 8 and a second limiting block 9 for limiting; the first limiting block 8 and the second limiting block 9 on the first adjusting frame 3 can respectively abut against the first traction component 5; the first limiting block 8 and the second limiting block 9 on the second adjusting frame 4 can respectively abut against the second traction component 6.

[0031] Optionally, the first traction block 52 is provided with a first tension sensor for detecting the traction deformation force of the thin profile.

[0032] Optionally, the first traction block 52 is provided with a second tension sensor for detecting the traction deformation force of the thin profile.

[0033] In a specific embodiment, a constant gravity traction machine is provided, including a first traction trolley 1 and a second traction trolley 2, both of which can travel along a production line track (such as...). Figure 1(As shown) can move synchronously or independently.

[0034] On the right side of the first traction trolley 1, i.e., the side closest to the second traction trolley 2, a vertically arranged first adjusting frame 3 is fixedly installed. The front of the first adjusting frame 3 has a first guide rail 31 extending vertically. The first traction assembly 5 is slidably connected to the first guide rail 31 via a first movable frame 51 on it, allowing the first traction assembly 5 to slide left and right along the first guide rail 31. A horizontal first transmission groove 32 is opened on the first adjusting frame 3. A first transmission component 54, preferably a connecting plate, is connected to the back of the first movable frame 51. This first transmission component 54 extends through the first transmission groove 32 to the back of the first adjusting frame 3. A first drive assembly 7 is installed on the first traction trolley 1. In this embodiment, the first... A drive assembly 7 includes a fixedly mounted second drive member 58, preferably a servo motor, and a first transmission chain 72 driven by it; the first transmission chain 72 is arranged horizontally, corresponding to the guiding direction of the first guide rail 31, and its two ends can be tensioned by sprockets; a first transmission member 54 is fixedly connected to the first transmission chain 72, and when the second drive member 58 rotates forward and backward, it drives the first transmission member 54 and the entire first traction assembly 5 to move along the first guide rail 31 through the first transmission chain 72, thereby adjusting the position of the first traction assembly 5 relative to the first traction trolley 1; a first limiting block 8 and a second limiting block 9 are fixed at the left and right ends of the first adjusting frame 3, respectively, to limit the movement range of the first traction assembly 5; The working processes of the first traction component 5 and the second traction component 6 are similar. Taking the first traction component 5 as an example, as follows: Figure 2 As shown, the specific structure of the first traction component 5 includes: a first movable frame 51, a first lifting frame 56, a first traction block 52, a first traction plate 57, a first driving component 55, and a second driving component 58. The first movable frame 51 is slidably connected to the first guide rail 31 and serves as the base of the traction assembly. The first lifting frame 56 is slidably connected to the first movable frame 51, preferably via a guide rail pair, and can slide up and down relative to the first movable frame 51 under the drive of the second driving member 58. The second driving member 58, preferably a lifting cylinder or an electric push rod, is detachably connected to the first movable frame 51, and its driving end is connected to the first lifting frame 56 for driving the first lifting frame 56 to rise and fall, thereby adjusting the height between the first traction block 52 and the first traction plate 57 to accommodate profiles of different thicknesses. The first traction block 52 is rotatably mounted on the first lifting frame 56 via a pivot. The cross-section of the first traction block 52 is arc-shaped, and its arc-shaped bottom is used to contact the thin profile. This arc-shaped design can effectively disperse clamping stress and avoid indentations or scratches on the profile surface. The first traction plate 57 is detachably connected to the first lifting frame 56 and is located below the first traction block 52. The first traction block 52 and the first traction plate 57 cooperate to form a first traction area 59 for clamping one end of the thin profile. During traction, the profile is clamped between the arc-shaped first traction block 52 and the flat first traction plate 57, which ensures clamping stability and protects the profile surface. The first driving component 55 is detachably connected to the first lifting frame 56, and its output end is connected to the first traction block 52 via a coupling or gear set. It can drive the first traction block 52 to rotate, thereby driving the profile to rotate slightly or adjusting the clamping angle when needed. The first traction block 52 integrates a first tension sensor (not shown in the figure) for directly detecting the traction deformation force of the thin profile.

[0035] In the specific implementation process, in the initial state, the first traction trolley 1 and the second traction trolley 2 are located at the beginning of the production line, the first traction component 5 and the second traction component 6 are in the open state, and the first lifting frame 56 and the second lifting frame are in the raised position, that is, the high position state, so that the profile can enter. After the thin profile is extruded from the mold of the previous process to a certain length, the control system issues a command to control the second drive component 58 and the fifth drive component to move, drive the first lifting frame 56 and the second lifting frame to descend to the working height, so that the first traction plate 57 and the second traction plate are in a suitable position below the profile, ready to receive the profile. The control system controls the first drive assembly 7 and the second drive assembly to operate, driving the first traction assembly 5 and the second traction assembly 6 to move towards each other along the guide rail, i.e., to move closer to each other, so that the first traction block 52 and the first traction plate 57, and the second traction block and the second traction plate clamp the profile from the top and bottom directions, respectively. During the clamping process, the first tension sensor and the second tension sensor start to output signals, which the control system can use to determine whether the clamping force is appropriate, and fine-tune the position of the first and second traction assemblies 6 to achieve the preset initial clamping force; at the same time, the first drive member 55 and the fourth drive member can drive the corresponding traction blocks to rotate to adjust the profile posture or provide auxiliary traction; After traction begins, the third drive assembly 10 starts, driving the first and second traction trolleys 2 to move forward synchronously along the production line, thereby dragging the profile forward through the clamped traction assembly. Throughout the traction process, the first and second tension sensors continuously and in real time monitor the normal tension of the profile on the traction block and feed the signal back to the control system in real time to maintain a constant traction force during the traction process and avoid damage to the profile. After traction to the set position, the traction trolley stops and returns, the traction assembly opens, and the first and second lifting frames are raised to prepare for the next traction cycle. The control system can store the force-time curve of each traction for process analysis and quality traceability.

[0036] In this embodiment, an external control system is used as an example, and the technical logic is well known to those skilled in the art. Specifically: The built-in algorithm of the control system calculates the lateral traction force acting on the thin profile in real time based on the signal values ​​of the first and second tension sensors, combined with parameters such as the friction coefficient μ between the traction block and the thin profile (which can be preset or self-learned) and the wrap angle of the traction block. The calculated real-time traction force is compared with the user-preset constant target traction force to obtain the force deviation, and then the position is adjusted. When the absolute value of the force deviation exceeds the set dead zone threshold, the control system immediately issues a command to the first drive component 7 and / or the second drive component. When the traction force is too large, the control system controls the first drive assembly 7 and / or the second drive assembly to work quickly, driving the first traction assembly 5 and / or the second traction assembly 6 in the opposite direction to the movement of the traction trolley. For example, when the trolley moves forward, the first / second traction assembly 6 slides a short distance relative to the trolley, i.e., in the direction of the thin profile material. This action causes a slight relaxation of the clamping point of the traction assembly relative to the thin profile in the traction direction, buffering the sudden increase in tension. In essence, it allows the traction assembly to follow the elastic deformation of the thin profile while maintaining clamping, thus avoiding damage to the thin profile. When the traction force is too small, the control system controls the drive component to make the traction component slide forward relative to the traction trolley by a small distance in the traction direction, thereby increasing the stretch of the thin profile and ensuring the traction force. In other embodiments, the adjustment speed and amplitude can be controlled by PID according to the magnitude of the force deviation to achieve smooth and precise adjustment; at the same time, the control system continuously monitors the original values ​​of the first and second tension sensors; if the value of either sensor instantaneously exceeds the preset limit safety value, it may indicate that the thin profile is stuck, broken or mechanically interfered, and the control system will immediately trigger an emergency stop, the third drive group will stop, and the first and second drive components will drive the traction component to release quickly to protect the equipment and product.

[0037] Through the real-time detection and closed-loop control based on the tension sensor directly mounted on the traction block, the independent, dynamic, and precise position adjustment of the traction component relative to the traction trolley is realized. This adjustment directly responds to changes in the stress state of the thin profile, thereby quickly compensating for traction force fluctuations caused by factors such as the inertial acceleration / deceleration of the traction trolley, uneven track, and changes in the cross-section or material properties of the thin profile. This ensures that the thin profile is always under a preset, constant, and safe tension environment throughout the entire traction process, fundamentally avoiding the risk of the thin profile being stretched, thinned, or broken.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A constant gravity traction machine, characterized in that, include: A first traction trolley and a second traction trolley; a first adjusting frame is provided on the first traction trolley near the second traction trolley, and a first traction component is slidably arranged on the first adjusting frame; a second adjusting frame is provided on the second traction trolley near the first traction trolley, and a second traction component is slidably arranged on the second adjusting frame; the first traction component and the second traction component cooperate to achieve traction and driving of the thin profile; The first adjustment frame is provided with a first guide rail for guiding the first traction component, and the first traction component is slidably connected to the first guide rail; the second adjustment frame is provided with a second guide rail for guiding the second traction component, and the second traction component is slidably connected to the second guide rail. The first traction trolley is provided with a first drive component for adjusting the relative position of the first traction component and the first adjustment frame, and the output end of the first drive component is connected to the first traction component in a transmission manner. The second traction trolley is provided with a second drive assembly for adjusting the relative position of the second traction assembly and the second adjustment frame, and the output end of the second drive assembly is connected to the second traction assembly in a transmission manner; The bottom of the first traction trolley and the second traction trolley are respectively provided with a third drive component for movement.

2. The constant gravity traction machine according to claim 1, characterized in that, The first traction assembly includes: a first movable frame, a first lifting frame, a first traction block, a first traction plate for cooperating with the first traction block to traction the thin profile, a first driving member for driving the first traction block to rotate, and a second driving member for driving the first lifting frame to lift; the first movable frame is slidably connected to the first guide rail; a first transmission member is provided on one end of the first movable frame near the first guide rail; a first transmission groove is provided on the first adjusting frame, and one end of the first transmission member passes through the first transmission groove and is connected to the output end of the first driving assembly; The first lifting frame is slidably connected to the first movable frame; the second driving component is detachably connected to the first movable frame; the driving end of the second driving component is connected to the first lifting frame in a transmission manner. The first traction block is rotatably connected to the first lifting frame; the first traction plate is detachably connected to the first lifting frame and is located below the first traction block; the first traction block and the first traction plate cooperate to form a first traction area for clamping one end of the thin profile. The first drive unit is detachably connected to the first lifting frame, and the output end of the first drive unit is connected to the first traction block via a transmission.

3. The constant gravity traction machine according to claim 1, characterized in that, The first drive assembly includes: a third drive member and a first transmission chain; the third drive member is detachably connected to the first traction trolley, and the output end of the third drive member is fixedly connected to the first transmission chain; the first transmission member is drively connected to the first transmission chain.

4. A constant gravity traction machine according to claim 2, characterized in that, The first traction block has an arc-shaped cross-section, and the arc-shaped bottom of the first traction block is used to pull the thin profile without damaging it.

5. A constant gravity traction machine according to claim 1, characterized in that, The second traction assembly includes: a second movable frame, a second lifting frame, a second traction block, a second traction plate for cooperating with the second traction block to traction the thin profile, a fourth driving member for driving the second traction block to rotate, and a fifth driving member for driving the first lifting frame to lift; the second movable frame is slidably connected to the second guide rail; a second transmission member is provided on one end of the second movable frame near the second guide rail; a second transmission groove is provided on the second adjusting frame, and one end of the second transmission member passes through the second transmission groove and is connected to the output end of the second driving assembly; The second lifting frame is slidably connected to the second movable frame; the fifth driving member is detachably connected to the second movable frame; the driving end of the fifth driving member is connected to the second lifting frame in a transmission manner. The second traction block is rotatably connected to the second lifting frame; the second traction plate is detachably connected to the second lifting frame and is located below the second traction block; the second traction block and the second traction plate cooperate to form a second traction area for clamping the other end of the thin profile. The fourth drive unit is detachably connected to the first lifting frame, and the output end of the fourth drive unit is connected to the second traction block via a transmission connection.

6. A constant gravity traction machine according to claim 5, characterized in that, The second drive assembly includes: a sixth drive member and a second transmission chain; the fourth drive member is detachably connected to the second traction trolley, and the output end of the sixth drive member is fixedly connected to the second transmission chain; the second transmission member is drively connected to the second transmission chain.

7. A constant gravity traction machine according to claim 5, characterized in that, The cross-section of the second traction block is arc-shaped, and the arc-shaped bottom of the second traction block is used to pull the thin profile without damaging the thin profile.

8. A constant gravity traction machine according to claim 1, characterized in that, The first and second adjustment frames are respectively provided with a first limiting block and a second limiting block for limiting the position at both ends; The first limiting block and the second limiting block on the first adjusting frame can respectively abut against the first traction component; the first limiting block and the second limiting block on the second adjusting frame can respectively abut against the second traction component.

9. A constant gravity traction machine according to claim 2, characterized in that, The first traction block is equipped with a first tension sensor for detecting the traction deformation force of the thin profile.

10. A constant gravity traction machine according to claim 5, characterized in that, The first traction block is equipped with a second tension sensor for detecting the traction deformation force of the thin profile.

Images