Positioning and guiding machine for profile machining

Abstract

The application belongs to the technical field of profile guiding, and discloses a positioning and guiding machine for profile machining, which comprises a plurality of passive rollers, a correction mechanism arranged between two adjacent passive rollers and used for assisting the passive rollers in guiding and conveying a coiled profile, and a driving mechanism in transmission connection with the correction mechanism and used for driving the correction mechanism to actively correct the posture of the profile. The correction mechanism comprises a sleeve roller in winding connection with the surface of the profile, a plurality of protrusions uniformly embedded in the sleeve roller along a spiral track, an air bag sleeved in the sleeve roller, and guide fences arranged at both ends of the sleeve roller. The guide fence comprises guide rods fixed to the inner wall of the sleeve roller and arranged in an array along the circumference of the sleeve roller, and a plurality of supporting plates movably sleeved on the guide rods at both ends. The above technical solution can correct the profile without stopping the machine, and can effectively protect the edge of the profile from being damaged during correction.

Description

Technical Field

[0001] This invention belongs to the field of profile guiding technology, specifically a positioning and guiding machine for profile processing. Background Technology

[0002] Processing steps such as thinning of wound profiles require unwinding, which is then conveyed at the workstation by the cooperation of active and passive rollers. Therefore, a positioning and guiding mechanism is needed to assist in this conveying process. Existing positioning and guiding mechanisms use passive rollers for guidance, with passively rotatable limit posts at both ends between the passive rollers. These limit posts block the profile on both sides to prevent large-scale deviations.

[0003] However, this method cannot actively correct the profile; it can only provide a limited limiting effect. Furthermore, when the profile's offset is large, the close pressure and contact between the profile's edge and the limiting post can damage its fragile edges. The existing common correction method involves temporarily stopping the conveyor, loosening the passive rollers to allow the profile to move and offset in the width direction, and then actively pushing the profile through the limiting post. This method is time-consuming and relatively difficult to operate.

[0004] This application aims to improve upon the shortcomings of the prior art mentioned above, thereby overcoming the defects therein. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention provides a positioning and guiding machine for profile processing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a positioning and guiding machine for profile processing, comprising a plurality of passive rollers, and further comprising,

[0007] A correction mechanism is set between two adjacent passive rollers to assist the passive rollers in guiding and conveying the wound profile;

[0008] The drive mechanism, which is connected to the correction mechanism, is used to drive the correction mechanism to actively correct the posture of the profile.

[0009] The correction mechanism includes a sleeve roller that wraps around the surface of the profile, multiple protrusions that are evenly embedded in the sleeve roller along a spiral trajectory, an airbag sleeved inside the sleeve roller, and guide grids set at both ends inside the sleeve roller. The guide grids include guide rods that are fixed to the inner wall of the sleeve roller and arranged in an array along the circumference of the sleeve roller. Several support plates are aligned at both ends of the guide rods and movably sleeved. The airbag is set within the space enclosed by the several support plates. One side of the support plate supports the inner end of the protrusion and the expansion of the airbag supports the protrusion outside the surface of the sleeve roller.

[0010] One end of the airbag is connected to a conduit that is connected to an external air pump via a rotary seal.

[0011] Preferably, the inner end of the protrusion is fixedly connected to the support plate, and two limiting steps are provided on both sides of the inner end of the protrusion.

[0012] Preferably, the other end of the airbag is connected to a rigid conduit via a rotary seal, and the other end of the rigid conduit is connected to an air cylinder. The inner cavity of the air cylinder is fitted with a piston rod, the outer end of the piston rod passes through a sleeve roller to the outside and is fixedly connected to a friction plate, and the end of the piston rod is fitted with the sleeve roller via a flat key.

[0013] Preferably, the driving mechanism includes a drive motor and a turbine mechanism that is driven to the drive motor. The output end of the turbine mechanism is driven to a second friction plate. The first friction plate may be pressed tightly against the second friction plate or may not be pressed against it.

[0014] Preferably, one end of the roller is connected to a rod support, the end of the rod support is fixed to the mounting frame, and an air passage is opened inside the rod support. The two ends of the air passage are respectively connected to a conduit and an air pump.

[0015] Preferably, the positioning guide machine further includes an oiling roller, which is disposed below one of the correction mechanisms.

[0016] A cylinder, fixed to a mounting bracket on the side of the coating roller and fixedly connected to both the driven roller and the coating roller, is used to drive them to move up and down synchronously.

[0017] The offset measuring mechanism is located at the side edge of the conveyed profile and rolls and contacts it to detect its offset.

[0018] The oiling roller is located directly below the passive roller, and the profile passes between the two and wraps around or contacts one of them.

[0019] Preferably, the offset measuring mechanism includes a second rod support fixed on the mounting frame, a central shaft fixedly sleeved in the second rod support, a rotating sleeve sleeved on the central shaft via a bearing, and a tension / compression sensor between the end of the central shaft and the second rod support.

[0020] Preferably, the offset measuring mechanism is located below the profile, and the rotating sleeve is attached to the bottom surface of the conveyed profile.

[0021] Preferably, when the oiling roller contacts the profile, the contact portion between the oiling roller and the profile does not overlap with the contact portion between the rotating sleeve and the profile.

[0022] Preferably, the positioning and guiding mechanism further includes a slide table, and the offset measuring mechanism is fixedly installed on the slide table and its position is controlled by the horizontal movement of the slide table, which is driven by a lead screw.

[0023] Preferably,

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] The aforementioned technical solution utilizes multiple outward-expanding internal protrusions to form a set of rounded protrusions distributed along a spiral trajectory on the surface. During rotation, these protrusions exert frictional force on the profile along its width, thus pushing the profile in that direction. Regardless of the profile's direction of deviation, controlling the steering direction can alter the direction of the frictional force on the profile surface, thereby controlling the profile's deviation direction. Correction can be performed without stopping the machine, and the edges of the profile can be effectively protected from damage during correction.

[0026] By driving and cooperating with the guide at the other end, both are pulled upwards. The profiles that were originally connected are straightened by the conveyor rollers and moved upwards until they finally contact the bottom of the profiles, where lubricant is evenly applied to their surfaces. Because there is lubrication at the bottom of the profiles, their friction in the axial direction is significantly reduced, which reduces the friction force during straightening and facilitates the straightening process.

[0027] The force applied to the surface of the profile will be measured when there is a tendency to detach outward or compress inward. When the conveying direction of the profile deviates, causing a tendency to detach or compress, the corresponding tension value and direction can be detected. The magnitude of the tension value is determined by the magnitude of the friction force, which in turn is determined by the degree of deviation. Therefore, the deviation, i.e., the degree of deviation, can be measured to assist in controlling the operation of the correction mechanism, providing its correction direction, and stopping the correction after it is completed. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the complete structure of the present invention;

[0029] Figure 2 This is a top view of the structure of the present invention;

[0030] Figure 3 This is a front view of the structure of the present invention after removing the mounting bracket;

[0031] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of part A;

[0032] Figure 5 This is a partial cross-sectional view of the correction mechanism of the present invention;

[0033] Figure 6 This is a schematic diagram of the internal axial direction of the correction mechanism of the present invention;

[0034] Figure 7 This is a cross-sectional view and a schematic diagram of the fit of the rod support of the present invention;

[0035] Figure 8 This is a cross-sectional view of the offset measuring mechanism of the present invention;

[0036] Figure 9 This is a schematic diagram showing the application of the offset measuring mechanism of the present invention to the winding profile.

[0037] In the diagram: 100, Passive roller; 200, Bidirectional lead screw; 300, Correction mechanism; 301, Sleeve roller; 3011, Rod support one; 3012, Air passage; 302, Protrusion; 303, Airbag; 304, Guide grid; 3041, Guide rod; 305, Air cylinder; 3051, Piston rod; 3052, Friction plate one; 306, Rotary seal; 307, Support plate; 400, Offset measuring mechanism; 401, Rod support two; 402, Central shaft; 403, Bearing; 404, Rotating sleeve; 405, Tension / compression sensor; 500, Slide table; 600, Drive mechanism; 601, Turbine mechanism; 602, Friction plate two; 700, Cylinder; 800, Oiling roller. Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 9 As shown, the present invention provides a positioning and guiding machine for profile processing, such as... Figures 1 to 9 As shown, it includes several passive rollers 100, and also includes,

[0040] A correction mechanism 300 is disposed between two adjacent passive rollers 100 to assist the passive rollers 100 in guiding and conveying the wound profile.

[0041] A drive mechanism 600 is connected to a correction mechanism 300 for driving the correction mechanism 300 to actively correct the profile posture.

[0042] The correction mechanism 300 includes a sleeve roller 301 that is wound around the surface of the profile, a plurality of protrusions 302 that are evenly embedded in the sleeve roller 301 along a spiral trajectory, an airbag 303 that is sleeved inside the sleeve roller 301, and guide grids 304 that are set at both ends inside the sleeve roller 301. The guide grid 304 includes guide rods 3041 that are fixed to the inner wall of the sleeve roller 301 and arranged in a circumferential array along the sleeve roller 301. The two guide rods 3041 at both ends are aligned and movably sleeved with a plurality of support plates 307. The airbag 303 is set within the space enclosed by the plurality of support plates 307. One side of the support plate 307 is supported against the inner end of the protrusion 302 and the expansion of the airbag 303 supports the protrusion 302 outside the surface of the sleeve roller 301.

[0043] One end of the airbag 303 is connected to a conduit that is connected to an external air pump via a rotary seal 306.

[0044] When the conveyed profile deviates, the correction mechanism 300 corrects its posture. Under normal conveying conditions, the correction mechanism 300 acts as a passive conveying roller, with the protrusions 302 all housed within its surface. However, during correction, multiple protrusions 302 located inside are pushed outward, forming a set of rounded protrusions distributed along a spiral trajectory on its surface. When rotating, these protrusions exert frictional force on the profile along its width, thus pushing the profile in that direction. Regardless of the direction of profile deviation, controlling the direction of the correction mechanism 300 changes the direction of the frictional force exerted by the protrusions 302 on the profile surface. The protrusions 302 are movably fitted between the inner walls of the roller 301, while multiple support plates 307 support their inner ends. When the air bladder 303 inflates, it pushes the protrusions 302 outward, forming spiral protrusions. This also expands the radius of the roller 301 surface.

[0045] like Figure 4 As shown, the inner end of the protrusion 302 is fixedly connected to the support plate 307, and two layers of limiting steps are also provided on both sides of the inner end of the protrusion 302.

[0046] The airbag 303 is also fixedly bonded to the support plate 307, allowing the support plate 307 to retract inward as the airbag 303 retracts. This is just one embodiment; other retraction methods, such as providing a support spring between the support plate 307 and the inner wall of the roller 301, can also cause it to retract inward, but this method is not shown in the figure. Steps are provided on both sides of the inner end of the protrusion 302 to limit its movement and prevent it from falling outward.

[0047] like Figure 5As shown, the other end of the airbag 303 is connected to a rigid conduit via a rotary seal 306. The other end of the rigid conduit is connected to an air cylinder 305. The inner cavity of the air cylinder 305 is interference-fitted with a piston rod 3051. The outer end of the piston rod 3051 passes through the sleeve roller 301 to the outside and is fixedly connected to a friction plate 3052. The end of the piston rod 3051 is connected to the sleeve roller 301 via a flat key.

[0048] Using the above technical solution, when the airbag 303 is inflated to its maximum extent, the internal pressure will affect the piston rod 3051. The air pressure will push the piston rod 3051 to extend outward, and allow the friction plate 3052 to dock with the drive mechanism 600. The piston rod 3051 is provided with a flat key that slides and engages with the end of the sleeve roller 301. When the piston rod 3051 rotates, it can drive the sleeve roller 301 to rotate.

[0049] like Figure 5 As shown, the drive mechanism 600 includes a drive motor and a turbine mechanism 601 that is driven to the drive motor. The output end of the turbine mechanism 601 is driven to a friction plate 602. One of the friction plates 3052 may be pressed against the friction plate 602 or not.

[0050] The drive motor can drive the friction plate 602 to rotate through the turbine mechanism 601. When the air bag 303 is filled with air and expands to the maximum extent, the piston rod 3051 in the air cylinder 305 will be subjected to greater pressure and will extend outward. The friction plate 3052 will then extend until it is pressed against the surface of the friction plate 602. Thus, the rotation of the friction plate 602 can drive the roller 301 to rotate synchronously.

[0051] like Figure 7 As shown, one end of the roller 301 is connected to a bearing with a rod support 3011. The end of the rod support 3011 is fixed to the mounting frame. An air passage 3012 is provided inside the rod support 3011. The two ends of the air passage 3012 are respectively connected to a conduit and an air pump.

[0052] The rod support 3011 is fixedly installed on the mounting bracket and does not rotate. It is connected to the air pump through the external interface of the air passage 3012. The air pump injects air into the airbag 303 through the air passage 3012, or it can draw the air out to the outside to make the airbag 303 retract.

[0053] like Figure 1-4 As shown, the positioning and guiding machine also includes an oiling roller 800, which is positioned below one of the correction mechanisms 300.

[0054] Cylinder 700, which is fixed on the mounting bracket on the side of the oiling roller 800, and is fixedly connected to the driven roller 100 and the oiling roller 800 for driving them to move up and down synchronously.

[0055] The offset measuring mechanism 400 is located at the side edge of the conveyed profile and rolls and contacts it to detect its offset.

[0056] The oiling roller 800 is located directly below the passive roller 100, and the profile passes between the two and wraps around or contacts one of them.

[0057] Using the above technical solution, when the wound profile is being conveyed normally, the passive roller 100 presses the profile downwards and wraps around it, achieving a normal guiding and conveying effect. When profile straightening is required, the cylinder 700 drives the passive roller 100 and the oiling roller 800, in conjunction with the guide at the other end, to pull them upwards. The profile originally wrapped around the passive roller 100 is straightened by the conveying roller, and the oiling roller 800 moves upwards until it contacts the bottom of the profile, evenly applying lubricating oil to its surface. Subsequently, as the profile continues to be conveyed forward, passing several other passive rollers 100 wrapped around its bottom, the lubrication at their bottoms significantly reduces friction in the axial direction, facilitating straightening.

[0058] Furthermore, the upward movement of the passive roller 100 straightens the profile and also provides corresponding length compensation to the profile that the correction mechanism 300 wraps around. This is because after the protrusion 302 on the correction mechanism 300 extends, the diameter on which it can be wrapped around is significantly increased.

[0059] like Figure 8 As shown, the offset measuring mechanism 400 includes a second rod support 401 fixed on the mounting frame, a central shaft 402 fixedly sleeved in the second rod support 401, a rotating sleeve 404 sleeved on the central shaft 402 through a bearing 403, and a tension / compression sensor 405 provided between the end of the central shaft 402 and the second rod support 401.

[0060] like Figure 3 and 9 As shown, the offset measuring mechanism 400 is located below the profile, and the rotating sleeve 404 is attached to the bottom surface of the conveyed profile.

[0061] In the above technical solution, the rod support 401 and the central shaft 402 are limited by a flat key, allowing for axial slippage but preventing circumferential rotation. A rotating sleeve 404 is connected to the outside of the central shaft 402 via two bearings, allowing the sleeve to rotate independently of the shaft. After fitting against the conveyed profile, the sleeve rotates along with the profile during transport. A tension / compression sensor 405, connected to both, is installed in the inner cavity formed by the ends of the rod support 401 and the central shaft 402. Therefore, when the central shaft 402 exhibits a tendency to detach outwards or compress the rod support 401 inwards, this force will be detected by the tension / compression sensor 405. When the conveying direction of the profile deviates, such as... Figure 9As shown, its offset direction is obliquely away from the rotating sleeve 404, so the rotating sleeve 404 is subjected to an outward frictional force, causing the rotating sleeve 404 to drive the central shaft 402 to tend to disengage from the rod support 401. The tension and pressure sensor 405 can detect the corresponding tension value. The magnitude of the tension value is determined by the magnitude of the frictional force, which in turn is determined by the degree of offset. Therefore, the offset, i.e. the degree of offset, can be measured to assist in controlling the operation of the correction mechanism.

[0062] like Figure 2 As shown, when the oiling roller 800 contacts the profile, the contact portion between the oiling roller 800 and the profile does not coincide with the contact portion between the rotating sleeve 404 and the profile.

[0063] The contact position between the offset measuring mechanism 400 and the profile is adjustable along the width direction of the profile, and the oiling roller 800 can be selected to match the length of the profile. By adjusting the contact positions so that they do not overlap in the conveying direction, the problem of insufficient friction on the rotating sleeve 404 after the oiling roller 800 applies lubricating oil to the bottom of the profile can be avoided. This allows the offset measuring mechanism 400 to maintain a relatively good friction environment for accurate measurement of the profile's offset. If the contact areas of the two overlap in the conveying direction, the presence of lubricating oil at the contact position between the rotating sleeve 404 and the profile will reduce friction, causing the measured offset to differ from the actual situation.

[0064] like Figure 1 As shown, the positioning and guiding mechanism also includes a slide table 500. The offset measuring mechanism 400 is fixedly installed on the slide table 500 and its position is controlled by the horizontal movement of the slide table 500. The slide table 500 is driven by a lead screw.

[0065] The slide table 500 consists of a bidirectional ball screw structure and a drive mechanism. A offset measuring mechanism 400 can be installed on the sliding sleeves at both ends of the bidirectional ball screw, or both can be equipped with offset measuring mechanisms 400. This allows the offset measuring mechanism 400 to adjust its suitable setting position according to the different widths of the wound profile so as to make contact with it. Alternatively, the slide table 500 can drive the offset measuring mechanism 400 to adjust the contact area and position with the wound profile. The slide table 500 can also be used to install components such as limit posts to limit the profile (not shown in the figure).

[0066] Working principle and usage process of this invention:

[0067] When the conveyed profile deviates, the correction mechanism 300 corrects its posture. Under normal conveying conditions, the correction mechanism 300 acts as a passive conveying roller, with the protrusions 302 all housed within its surface. However, during correction, multiple protrusions 302 located inside are pushed outward, forming a set of rounded protrusions distributed along a spiral trajectory on its surface. As they rotate, these protrusions exert frictional force on the profile along its width, thus pushing the profile in that direction. Regardless of the direction of the profile's deviation, controlling the direction of the correction mechanism 300 changes the friction direction of the protrusions 302 on the profile surface.

[0068] 404 is attached to the surface of the profile. When 402 has a tendency to detach outward or compress 401 inward, it will be detected by 405. When the conveying direction of the profile deviates, causing 404 to drive 402 to tend to detach or press against 401, 405 can detect the corresponding tension value and direction of the force. The magnitude of the tension value is determined by the magnitude of the friction force, which in turn is determined by the degree of deviation. Therefore, the deviation, i.e., the degree of deviation, can be measured to assist in controlling the operation of the correction mechanism, providing its correction direction, and stopping the correction after the correction is completed.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning and guiding machine for profile processing, comprising a plurality of passive rollers (100), characterized in that: It also includes, A correction mechanism (300) is disposed between two adjacent passive rollers (100) to assist the passive rollers (100) in guiding and conveying the wound profile; A drive mechanism (600) is connected to a correction mechanism (300) for driving the correction mechanism (300) to actively correct the profile posture; The correction mechanism (300) includes a sleeve roller (301) that is wound around the surface of the profile, a plurality of protrusions (302) that are uniformly embedded in the sleeve roller (301) along a spiral trajectory, an airbag (303) sleeved inside the sleeve roller (301), and guide grids (304) set at both ends inside the sleeve roller (301). The guide grid (304) includes guide rods (3041) that are fixed to the inner wall of the sleeve roller (301) and arranged in a circumferential array along the sleeve roller (301). The guide rods (3041) at both ends are aligned and movably sleeved with a plurality of support plates (307). The airbag (303) is set within the space enclosed by the plurality of support plates (307). One side of the support plate (307) is supported against the inner end of the protrusion (302) and the expansion of the airbag (303) supports the protrusion (302) outside the surface of the sleeve roller (301). One end of the airbag (303) is connected to a conduit that is connected to an external air pump via a rotary seal (306); The other end of the airbag (303) is connected to a rigid conduit via a rotary seal (306), and the other end of the rigid conduit is connected to an air cylinder (305). The inner cavity of the air cylinder (305) is press-fitted with a piston rod (3051). The outer end of the piston rod (3051) passes through the sleeve roller (301) to the outside and is fixedly connected to a friction plate (3052). The end of the piston rod (3051) is connected to the sleeve roller (301) via a flat key. The drive mechanism (600) includes a drive motor and a turbine mechanism (601) that is driven to the drive motor. The output end of the turbine mechanism (601) is driven to a friction plate two (602). The friction plate one (3052) and the friction plate two (602) may be pressed together or not.

2. The positioning and guiding machine for profile processing according to claim 1, characterized in that: The inner end of the protrusion (302) is fixedly connected to the support plate (307), and two layers of limiting steps are provided on both sides of the inner end of the protrusion (302).

3. The positioning and guiding machine for profile processing according to claim 1, characterized in that: One end of the roller (301) is connected to a rod support (3011) by a bearing. The end of the rod support (3011) is fixed to the mounting frame. An air passage (3012) is provided inside the rod support (3011). The two ends of the air passage (3012) are respectively connected to a conduit and an air pump.

4. The positioning and guiding machine for profile processing according to claim 1, characterized in that: The positioning guide machine also includes an oiling roller (800), which is disposed below one of the correction mechanisms (300). A cylinder (700), fixed to a mounting bracket on the side of the oiling roller (800), and fixedly connected to the driven roller (100) and the oiling roller (800) for driving them to move up and down synchronously. Offset measuring mechanism (400) is set at the side edge of the conveyed profile and rolls and contacts it to detect its offset. The oiling roller (800) is located directly below the passive roller (100), and the profile passes between the two and wraps around or contacts one of them.

5. A positioning and guiding machine for profile processing according to claim 4, characterized in that: The offset measuring mechanism (400) includes a second rod support (401) fixed on the mounting frame. A central shaft (402) is fixedly sleeved in the second rod support (401). A rotating sleeve (404) is sleeved on the central shaft (402) through a bearing (403). A tension and compression sensor (405) is provided between the end of the central shaft (402) and the second rod support (401).

6. A positioning and guiding machine for profile processing according to claim 5, characterized in that: The offset measuring mechanism (400) is located below the profile, and the rotating sleeve (404) is attached to the bottom surface of the conveyed profile.

7. A positioning and guiding machine for profile processing according to claim 6, characterized in that: When the oiling roller (800) comes into contact with the profile, the contact portion between the oiling roller (800) and the profile does not overlap with the contact portion between the rotating sleeve (404) and the profile.

8. A positioning and guiding machine for profile processing according to claim 4, characterized in that: The positioning and guiding mechanism also includes a slide (500). The offset measuring mechanism (400) is fixedly installed on the slide (500) and its position is controlled by the horizontal movement of the slide (500). The slide (500) is driven by a lead screw.

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