Processing device suitable for stem pulling roller and stem pulling roller processing method

Abstract

The invention provides a processing device and method suitable for a stem pulling roller, and the processing device comprises a rack which is provided with a working surface; the supporting mechanism is mounted on the working surface so as to support the barrel and allow the barrel to rotate around the axis of the barrel; the limiting mechanism is mounted on the working surface and is configured to limit the blade, so that the blade is tangent to the circumferential surface, deviating from the working surface, of the barrel; the angle positioning mechanism is detachably mounted with the guide cone and the spline housing, rotates synchronously with the cylinder body, and is provided with a first through hole group and a second through hole group which are uniformly distributed around the axis of the cylinder body at intervals; a phase difference with a preset angle is formed between each first through hole in the first through hole group and a connecting line formed between the adjacent second through hole in the second through hole group and the axis of the barrel; and the positioning mechanism is matched with the first through hole group or the second through hole group so as to position the two barrels respectively, so that the blades welded on the two barrels have a phase difference.

Description

Technical Field

[0001] At least one embodiment of this disclosure relates to the field of agricultural machinery processing technology, and in particular to a processing device and a processing method for stem-pulling rollers. Background Technology

[0002] With the development of agricultural mechanization, corn harvesters can replace manual labor in performing multiple tasks such as corn picking, conveying, and collecting. The stalk puller is a key component of the corn harvester, used to clamp and pull the stalks of the corn plant, while effectively separating the corn ears from the stalks.

[0003] Typically, two pull rollers are needed to clamp and pull the corn stalks. Specifically, the spiral ribs of the two pull rollers rotate in opposite directions, conveying the stalks backward to the working area of ​​the blades. The two sets of blades on the pull rollers rotate in a staggered, opposite direction, manner, with a gap between them. When rotating in opposite directions, they exert a downward pulling force on the corn stalk, pulling it down. Therefore, the precision of the phase difference and gap between the two sets of blades on the two pull rollers is crucial for corn harvesting. However, the welding process for the pull roller blades is complex, making it impossible to guarantee the precision of the phase difference and gap between the two sets of blades on the two pull rollers. Summary of the Invention

[0004] In view of this, the present disclosure provides a processing apparatus and a processing method for stem-pulling rollers, which at least partially solves the above-mentioned technical problems, ensures the accuracy of the phase difference and gap between the blades of the two stem-pulling rollers, and improves the accuracy and convenience of stem-pulling roller processing.

[0005] The first aspect of this disclosure provides a processing apparatus suitable for a stem-pulling roller, the stem-pulling roller including a cylinder, a plurality of blades, a guide cone, and a spline sleeve, wherein the plurality of blades are welded evenly spaced to the circumferential surface of the cylinder, and the guide cone and the spline sleeve are respectively disposed at opposite ends of the cylinder. The processing apparatus includes: a frame having a working surface; a support mechanism mounted on the working surface to support the cylinder and allow the cylinder to rotate about its own axis; and a limiting mechanism mounted on the working surface and configured to limit the blades, such that the blades are separated from the cylinder from the working surface. The circumferential surfaces are tangent; an angle positioning mechanism is detachably installed with the guide cone and the spline sleeve, and rotates synchronously with the cylinder. The angle positioning mechanism is provided with a first through hole group and a second through hole group evenly spaced around the axis of the cylinder. The line connecting each first through hole in the first through hole group and the adjacent second through hole in the second through hole group to the axis of the cylinder has a preset angle phase difference; a positioning mechanism cooperates with the first through hole group or the second through hole group to position the two cylinders respectively, so that the blades welded to the two cylinders have the phase difference.

[0006] According to embodiments of this disclosure, the number of the first through holes and the second through holes is the same as the number of the blades; and / or the first through hole group and the second through hole group are distributed at intervals in the radial direction of the cylinder.

[0007] According to an embodiment of this disclosure, the positioning mechanism includes: a bracket mounted on the working surface; and a positioning component disposed on the bracket and configured to detachably engage with the first through hole or the second through hole to prevent the angle positioning mechanism from rotating relative to the support mechanism.

[0008] According to an embodiment of this disclosure, the angle positioning mechanism includes an angle positioning part, which is installed on the spline sleeve and rotatably disposed on the support mechanism about the axis of the cylinder to allow the cylinder to rotate about its own axis. The first through hole group and the second through hole group are disposed on the angle positioning part.

[0009] According to an embodiment of this disclosure, the angle positioning mechanism further includes: a spline shaft, coaxially connected to the angle positioning part and interference-fitted with the spline sleeve; and a rotating shaft, interference-fitted with the end of the guide cone away from the cylinder; wherein the spline shaft and the rotating shaft are rotatably disposed on the support mechanism about the axis of the cylinder.

[0010] According to an embodiment of this disclosure, the key of the spline shaft is offset from the first through hole and the second through hole in the radial direction of the cylinder.

[0011] According to an embodiment of this disclosure, the support mechanism includes: a first support portion mounted on the working surface and rotatably connected to the spline shaft; a second support portion mounted on the working surface and rotatably connected to the rotating shaft; and a constraint assembly mounted on the first support portion and / or the second support portion, configured to prevent the rotating shaft from moving in the radial direction of the cylinder.

[0012] According to an embodiment of this disclosure, the limiting mechanism includes: a limiting part having a limiting groove for placing the blade, such that the blade is parallel to the working surface and tangent to the circumferential surface of the cylinder opposite to the working surface; and a mounting assembly disposed on the limiting part and detachably connected to the working surface to adjust the distance between the limiting groove and the cylinder.

[0013] According to an embodiment of this disclosure, the limiting groove includes: a first limiting surface, parallel to the working surface, such that the blade is parallel to the working surface; and a second limiting surface, perpendicular to the first limiting surface, and abutting against a first side of the blade away from the cylinder, such that the first side of the plurality of blades welded to the cylinder is at the same distance from the axis of the cylinder.

[0014] The second aspect of this disclosure provides a method for processing stem-pulling rollers using the processing device described above. Two cylinders are provided, including a first cylinder and a second cylinder. The method includes: installing an angle positioning mechanism onto guide cones and spline sleeves at both ends of the first cylinder or the second cylinder; installing the first cylinder or the second cylinder onto a support mechanism; rotating the angle positioning mechanism to drive the first cylinder or the second cylinder to rotate relative to the support mechanism around its own axis; sequentially fixing the positioning mechanism relative to each first through hole in the first through hole group to position the first cylinder at multiple corresponding positions, and sequentially welding the blade of the limiting mechanism to the first cylinder; or sequentially fixing the positioning mechanism relative to each second through hole in the second through hole group to position the second cylinder at multiple corresponding positions, and sequentially welding the blade of the limiting mechanism to the second cylinder.

[0015] According to an embodiment of this disclosure, the welding positions at both ends of the cylinder in the same radial direction are adjacent welding positions to symmetrically weld the blades.

[0016] According to the processing apparatus and method for stem-pulling rollers provided in this disclosure, when using the processing apparatus, the guide cone and spline sleeve of the stem-pulling roller are pre-installed at opposite ends of the cylinder. An angle positioning mechanism is installed on the spline sleeve and guide cone. The cylinder is then installed on the support mechanism, allowing the cylinder and angle positioning mechanism to rotate relative to the support mechanism about the axis of the cylinder. This facilitates rotating the cylinder to the desired position for welding the blade, improving processing convenience.

[0017] When welding blades to the two cylinders respectively, the positioning mechanism cooperates with the first through-hole group to position the first cylinder. Specifically, the positioning mechanism is sequentially fixed relative to each first through-hole, thereby preventing the first cylinder from rotating relative to the support mechanism and positioning it in the corresponding position for sequential welding of blades on the circumferential surface of the first cylinder. The positioning mechanism cooperates with the second through-hole group to position the second cylinder. Specifically, the positioning mechanism is sequentially fixed relative to each second through-hole, thereby preventing the second cylinder from rotating relative to the support mechanism and positioning it in the corresponding position for sequential welding of blades on the circumferential surface of the second cylinder. Since the lines connecting each first through-hole in the first through-hole group and the adjacent second through-hole in the second through-hole group to the axis of the cylinder have a preset phase difference, there is a phase difference between the position of the blade welded on the first cylinder and the position of the blade welded on the second cylinder, thereby ensuring the accuracy of the phase difference between the blades of the two pull rollers and improving the machining accuracy of the pull rollers. Furthermore, the limiting mechanism limits each blade, ensuring that each blade is in the same relative position to the cylinder, reducing the circular runout of the blades in a single cylinder, improving the accuracy of blade installation, thereby improving the uniformity of the gap between the two sets of blades on the two pull rollers, and further improving the accuracy of pull roller processing. Attached Figure Description

[0018] The above and other objects, features and advantages of this disclosure will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0019] Figure 1 A schematic cross-sectional view of a stem-pulling roller according to an embodiment of the present disclosure is shown;

[0020] Figure 2 A schematic side view of the blade of a stem-pulling roller according to an embodiment of the present disclosure is shown;

[0021] Figure 3 A schematic side view of a stem-pulling roller according to an embodiment of the present disclosure is shown;

[0022] Figure 4 A perspective view of a processing apparatus according to an embodiment of the present disclosure is shown schematically;

[0023] Figure 5 A side view of a processing apparatus according to an embodiment of the present disclosure is shown schematically;

[0024] Figure 6 A schematic view of another side of the processing apparatus according to an embodiment of the present disclosure is shown;

[0025] Figure 7 A schematic cross-sectional view of a processing apparatus according to an embodiment of the present disclosure is shown;

[0026] Figure 8 This schematic diagram illustrates the positions of the blade and the limiting portion according to an embodiment of the present disclosure;

[0027] Figure 9 A partial view of a processing apparatus according to an embodiment of the present disclosure is shown schematically;

[0028] Figure 10 A flowchart illustrating a method for processing a stem-pulling roller according to an embodiment of the present disclosure is shown schematically.

[0029] Figure 11 A schematic diagram illustrating the installation of a stem-pulling roller for detecting circular runout according to an embodiment of the present disclosure is shown; and

[0030] Figure 12 The diagram schematically illustrates the location of the circular runout data measured at three marked points for each blade.

[0031] Figure Labels

[0032] 1. Frame; 11. Working surface; 2. Support mechanism; 21. First support part; 22. Second support part; 23. Constraint assembly; 3. Limiting mechanism; 31. Limiting part; 311. Limiting groove; 3111. First limiting surface; 3112. Second limiting surface; 32. Mounting assembly; 4. Angle positioning mechanism; 41. Angle positioning part; 411. First through hole group; 4111. First through hole; 412. Second through hole group; 4121. Second through hole; 42. Splined shaft; 43. Rotating shaft; 5. Positioning mechanism; 51. Bracket; 52. Positioning assembly; 6. Rotating shaft; 7. Pulling roller; 71. Cylinder; 711. Positioning hole; 72. Blade; 721. First side; 722. Second side; 73. Guide cone; 731. Mounting inner hole; 74. Splined sleeve; 75. Spiral rib. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0034] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0035] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0036] When using expressions such as "at least one of A, B, and C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C.

[0037] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this disclosure. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this disclosure.

[0038] When using a corn harvester to replace manual labor for corn harvesting, the spiral ribs of two stalk-pulling rollers rotate in opposite directions, conveying the stalks backward to the working area of ​​the blades on the rollers. The two sets of blades on the rollers rotate in a staggered, opposite direction, manner, with a gap between them. When rotating in opposite directions, they exert a downward pulling force on the corn stalks, pulling them down. The higher the precision of the phase difference and gap between the two sets of blades on the two rollers, the better the stalk-pulling effect. If the gap between the two sets of blades is large, the staggered, opposite-direction rotation will not generate a downward pulling force on the stalks, resulting in a poor stalk-pulling effect. If the gap between the two sets of blades is small or the phase difference is inaccurate, the corn stalks may be broken, causing the stalks to be conveyed backward along with the corn ears. Therefore, the precision of the phase difference and gap between the two sets of blades on the two rollers is crucial for corn harvesting. However, the welding process of the stalk-pulling roller blades is complex, making it impossible to guarantee the precision of the phase difference and gap between the two sets of blades on the two rollers.

[0039] In detail, refer to Figure 1 As shown, the stem-pulling roller 7 includes a cylindrical body 71, a guide cone 73, multiple blades 72, a spline sleeve 74, and a spiral rib 75. The cylindrical body 71 has a cylindrical structure. At the first end of the cylindrical body 71 in the axial direction ( Figure 1 The left end of the middle cylinder 71 is provided with a positioning hole 711 for mounting the guide cone 73. The second end of the cylinder 71, opposite the first end... Figure 1 A spline sleeve 74 is provided at the right end of the middle cylinder 71 to engage with the spline shaft of the gearbox of the corn harvester, allowing the stalk-pulling roller 7 to rotate around its own axis. A guide cone 73 is interference-fitted with a positioning hole 711. Thus, the guide cone 73 and the spline sleeve 74 are respectively located at opposite ends of the cylinder 71. An inner mounting hole 731 is provided at the end of the guide cone 73 furthest from the cylinder 71. Spiral ribs 75 are welded to the circumferential surface of the guide cone 73.

[0040] Reference Figure 1 and Figure 2 As shown, the first side 721 of the blade 72 ( Figure 2 The lower side of the blade 72 is the cutting edge for cutting stems. The blade 72 is opposite the first side 721 to the second side 722 (…). Figure 2 The upper side (of the cylinder) is a long straight side, welded to the circumferential surface of the cylinder 71. (Refer to...) Figure 1 and Figure 3As shown, multiple blades 72 are welded evenly spaced to the circumferential surface of the cylinder 71, and each blade 72 is tangent to the circumferential surface of the cylinder 71.

[0041] Embodiments of this disclosure provide a processing apparatus suitable for a stem-pulling roller 7, with reference to... Figure 4 , Figure 5 and Figure 6 As shown, the processing device includes a frame 1, a support mechanism 2, a limiting mechanism 3, an angle positioning mechanism 4, and a positioning mechanism 5.

[0042] The frame 1 has a working surface 11. A support mechanism 2 is mounted on the working surface 11 to support the cylinder 71 and allow it to rotate about its own axis. A limiting mechanism 3 is mounted on the working surface 11 and configured to limit the blade 72, such that the blade 72 is tangent to the circumferential surface of the cylinder 71 away from the working surface 11. An angle positioning mechanism 4 is detachably mounted to the guide cone 73 and the spline sleeve 74, and rotates synchronously with the cylinder 71. The angle positioning mechanism 4 has a first through-hole group 411 and a second through-hole group 412 evenly spaced around the axis of the cylinder 71. Each first through-hole 4111 in the first through-hole group 411 and the adjacent second through-hole 4121 in the second through-hole group 412 form a line with the axis of the cylinder 71 with a preset angular phase difference. A positioning mechanism 5 cooperates with either the first through-hole group 411 or the second through-hole group 412 to position the two cylinders 71 respectively, so that the blades 72 welded to the two cylinders 71 have a phase difference.

[0043] In detail, the frame 1 is placed vertically, and the working surface 11 of the frame 1 is a horizontal plane. The working surface 11 is provided with a plurality of arrayed mounting holes for mounting the support mechanism 2 and the limiting mechanism 3.

[0044] The support mechanism 2 and the limiting mechanism 3 are, but are not limited to, mounted on the working surface 11 of the frame 1 by bolts, screws, clips or any other mounting components. The support mechanism 2 includes, but is not limited to, a support frame and bearings, to support the cylinder 71 and allow the cylinder 71 to rotate around its own axis.

[0045] Reference Figure 4 As shown, the cylinder 71 is placed on top of the support mechanism 2 and extends in the X direction. The X direction is the axial direction of the cylinder 71. It should be noted that the distance between the limiting mechanism 3 and the support mechanism 2 in the Y direction can be adjusted according to the required pulling roller 7. In this way, the relative position of the blade 72 and the cylinder 71 can be adjusted so that the blade 72 is tangent to the circumferential surface of the cylinder 71, so as to weld different types of pulling rollers 7.

[0046] Reference Figure 4 and Figure 5As shown, the angle positioning mechanism 4 may include, but is not limited to, an indexing dial, a scale dial, etc., depending on actual needs. The angle positioning mechanism 4 is coaxially arranged with the cylinder 71 and rotates synchronously with the cylinder 71. (Refer to...) Figure 6 As shown, the angle positioning mechanism 4 is provided with a first through hole group 411 and a second through hole group 412 evenly spaced around the axis of the cylinder 71. Each first through hole 4111 in the first through hole group 411 and the adjacent second through hole 4121 in the second through hole group 412 have a preset angle phase difference between the line connecting them to the axis of the cylinder 71, that is, the first through hole 4111 and the second through hole 4121 are staggered in the radial direction of the angle positioning mechanism 4.

[0047] The positioning mechanism 5 includes, but is not limited to, cooperating with the first through hole group 411 or the second through hole group 412 through a pin, screw, snap fastener or any other detachable connecting component to prevent the angle positioning mechanism 4 and the cylinder 71 from rotating relative to the support mechanism 2, so as to position the cylinder 71 so that the cylinder 71 is tangentially set with the blade 72 positioned by the limiting mechanism 3 to complete the welding.

[0048] It should be noted that when welding the blades 72 to the cylinders 71 of the two pull rollers 7 respectively, the positioning mechanism 5 cooperates with the first through-hole group 411 to position the first cylinder 71. Specifically, the positioning mechanism 5 is sequentially fixed relative to each of the first through-holes 4111, thereby preventing the first cylinder 71 from rotating relative to the support mechanism 2 and positioning it in the corresponding position so that the blades 72 can be sequentially welded to the circumferential surface of the first cylinder 71. The positioning mechanism 5 cooperates with the second through-hole group 412 to position the second cylinder 71. Specifically, the positioning mechanism 5 is sequentially fixed relative to each of the second through-holes 4121, thereby preventing the second cylinder 71 from rotating relative to the support mechanism 2 and positioning it in the corresponding position so that the blades 72 can be sequentially welded to the circumferential surface of the second cylinder 71.

[0049] In this way, since each of the first through holes 4111 in the first through hole group 411 and the adjacent second through holes 4121 in the second through hole group 412 have a preset angle phase difference between the line connecting them to the axis of the cylinder 71, the position of the blade 72 welded on the first cylinder 71 and the position of the blade 72 welded on the second cylinder 71 have a phase difference, which ensures the accuracy of the phase difference of the blades 72 of the two pulling rollers 7 and improves the processing accuracy of the pulling rollers 7.

[0050] Furthermore, the limiting mechanism 3 limits each blade 72, so that the relative position of each blade 72 and the cylinder 71 is the same, reducing the circular runout value of the blade 72 of a single cylinder 71, improving the installation accuracy of the blade 72, thereby improving the uniformity of the gap between the two sets of blades 72 of the two pull rollers 7, and further improving the processing accuracy of the pull rollers 7.

[0051] According to embodiments of this disclosure, when using the processing device, the guide cone 73 and spline sleeve 74 of the pull roller 7 are pre-installed at opposite ends of the cylinder 71. An angle positioning mechanism 4 is installed on the spline sleeve 74 and the guide cone 73. The cylinder 71 is then installed on the support mechanism 2, allowing the cylinder 71 and the angle positioning mechanism 4 to rotate relative to the support mechanism 2 around the axis of the cylinder 71. This facilitates the rotation of the cylinder 71 to the desired position for welding the blade 72, improving processing convenience. By setting the angle positioning mechanism 4 and the positioning mechanism 5, the cylinder 71 is positioned at the position corresponding to the first through hole 4111 or the second through hole 4121, and the blade 72 is positioned by the limiting mechanism 3, thereby ensuring the accuracy of the phase difference and gap between the blades 72 of the two pull rollers 7 and improving the processing accuracy of the pull roller 7.

[0052] In one exemplary embodiment, reference is made to Figure 3 , Figure 4 and Figure 6 As shown, the number of the first through hole 4111 and the second through hole 4121 is the same as the number of the blades 72.

[0053] Based on the number of blades 72 required for the pull roller 7, select the same number of first through holes 4111 and second through holes 4121 as the number of blades 72.

[0054] In this way, the positioning mechanism 5 is sequentially fixed relative to each of the first through holes 4111 or the second through holes 4121, thereby preventing the cylinder 71 from rotating relative to the support mechanism 2 and positioning it in the corresponding position, so that the blades 72 are sequentially welded on the circumferential surface of the cylinder 71, so that the number of blades 72 of the first cylinder 71 and the number of blades 72 of the second cylinder 71 are the same, and they have the same phase difference as the phase difference of the first through hole group 411 and the second through hole group 412, ensuring the accuracy of the phase difference of the blades 72 of the two pull rollers 7 and improving the processing accuracy of the pull rollers 7.

[0055] In one exemplary embodiment, reference is made to Figure 6 As shown, the first through hole group 411 and the second through hole group 412 are distributed at intervals in the radial direction of the cylinder 71, that is, the diameter of the circle formed by the first through hole group 411 is different from the diameter of the circle formed by the second through hole group 412.

[0056] Thus, when welding the blade 72 to the first cylinder 71, the corresponding first through-hole group 411 is selected to cooperate with the positioning mechanism 5. When welding the blade 72 to the second cylinder 71, the corresponding second through-hole group 412 is selected to cooperate with the positioning mechanism 5. The first through-hole group 411 and the second through-hole group 412 are distributed at intervals in the radial direction of the cylinder 71, which facilitates the differentiation between the first through-hole group 411 and the second through-hole group 412 and improves the convenience of operation.

[0057] In one exemplary embodiment, reference is made to Figure 4 , Figure 5 and Figure 6 As shown, the positioning mechanism 5 includes a bracket 51 and a positioning component 52. The bracket 51 is mounted on the working surface 11. The positioning component 52 is disposed on the bracket 51 and is configured to detachably engage with the first through hole 4111 or the second through hole 4121 to prevent the angle positioning mechanism 4 from rotating relative to the support mechanism 2.

[0058] In detail, the bracket 51 is mounted to the working surface 11 by means of bolts, pins, snap-fit ​​components or any other connecting components. It is understood that the bracket 51 may also be mounted to the support mechanism 2.

[0059] The positioning component 52 can be a pin, screw, insert, locking post, etc., depending on the actual needs, so as to achieve detachable insertion and engagement with the first through hole 4111 and the second through hole 4121.

[0060] In this embodiment, when positioning of the cylinder 71 is required, the positioning component 52 is inserted into the first through hole 4111 or the second through hole 4121 to prevent the angle positioning mechanism 4 and the cylinder 71 from rotating relative to the support mechanism 2, thereby positioning the cylinder 71 and welding the blade 72. When it is necessary to adjust the installation position of the next blade 72 on the cylinder 71, the positioning component 52 is pulled out from the first through hole 4111 or the second through hole 4121, canceling the positioning of the angle positioning mechanism 4 and the cylinder 71, allowing the angle positioning mechanism 4 and the cylinder 71 to rotate relative to the support mechanism 2 around their own axis, improving the convenience of positioning and adjusting the position of the cylinder 71.

[0061] In one exemplary embodiment, reference is made to Figure 4 and Figure 6 As shown, the angle positioning mechanism 4 includes an angle positioning part 41, which can be a circular indexing plate. A first through hole group 411 and a second through hole group 412 are disposed on the angle positioning part 41. The angle positioning part 41 is mounted on the spline sleeve 74 and is rotatably disposed on the support mechanism 2 around the axis of the cylinder 71, so as to allow the cylinder 71 to rotate around its own axis.

[0062] In one exemplary embodiment, reference is made to Figure 4 , Figure 5 and Figure 7 As shown, the angle positioning mechanism 4 also includes a splined shaft 42 and a rotating shaft 43. The splined shaft 42 is coaxially connected to the angle positioning part 41 and is interference-fitted with the splined sleeve 74. The rotating shaft 43 is interference-fitted with the end of the guide cone 73 away from the cylinder 71. The splined shaft 42 and the rotating shaft 43 are rotatably mounted on the support mechanism 2 about the axis of the cylinder 71.

[0063] In this embodiment, the splined shaft 42 is interference-fitted with the splined sleeve 74, thereby coaxially connecting the angle positioning part 41, the splined shaft 42, and the cylinder 71, and allowing them to rotate synchronously. The rotating shaft 43 is interference-fitted with the mounting inner hole 731 at the end of the guide cone 73 furthest from the cylinder 71. Thus, the angle positioning mechanism 4, the splined shaft 42, the rotating shaft 43, and the cylinder 71 are coaxially connected and rotate synchronously, causing the cylinder 71 to rotate around its own axis, thereby improving the convenience of adjusting the welding position of the blade 72 during the welding process of the cylinder 71.

[0064] In one exemplary embodiment, reference is made to Figure 6 , Figure 7 and Figure 8 As shown, the key of the spline shaft 42 is offset from the first through hole 4111 and the second through hole 4121 in the radial direction of the cylinder 71. In this way, the line connecting each first through hole 4111 or each second through hole 4121 and the key of the spline shaft 42 to the axis of the cylinder 71 has a phase difference of another preset angle, thereby ensuring the accuracy of the phase difference between the blades 72 of the two pull rollers 7 and the spline sleeve 74, and improving the machining accuracy of the pull rollers 7.

[0065] In one exemplary embodiment, reference is made to Figure 4 , Figure 5 , Figure 7 and Figure 9 As shown, the support mechanism 2 includes a first support portion 21, a second support portion 22, and a constraint assembly 23. The first support portion 21 is mounted on the working surface 11 and is rotatably connected to the splined shaft 42. The second support portion 22 is mounted on the working surface 11 and is rotatably connected to the rotating shaft 43. The constraint assembly 23 is mounted on the first support portion 21 and / or the second support portion 22 and is configured to prevent the rotating shaft 43 from moving in the radial direction of the cylinder 71.

[0066] Specifically, the first support portion 21 and the second support portion 22 are located on the same straight line and parallel to the axis of the cylinder 71. The first support portion 21 and the second support portion 22 are installed on the working surface 11 by means of, but not limited to, bolts, snap-fit ​​assemblies, or any other connecting components. The first support portion 21 and the second support portion 22 are... Figure 4 It extends in the Z direction. Understandably, the distance between the first support portion 21 and the second support portion 22 in the X direction can be adjusted according to the length of the cylinder 71, improving the applicability of the support mechanism 2. Both the first support portion 21 and the second support portion 22 are provided with two... Figure 4 The bearings are arranged side-by-side in the Y direction, and both bearings can rotate about an axis in the X direction. A splined shaft 42 is mounted above the two bearings of the first support 21, and is rotatably mounted on the first support 21. A rotating shaft 43 is mounted above the two bearings of the second support 22, and is rotatably mounted on the second support 22.

[0067] Specifically, refer to Figure 4 and Figure 9 As shown, the constraint assembly 23 includes, but is not limited to, C-clamps and bolts. The C-clamps of the constraint assembly 23 are fastened to the top of the spline shaft 42 and the rotating shaft 43. The C-clamps are bolted to the top of the first support portion 21 to press the spline shaft 42 against the two bearings of the first support portion 21, thereby positioning the spline shaft 42 in the radial direction of the cylinder 71. Thus, the spline shaft 42 is rotatably engaged with the two bearings of the first support portion 21 and the constraint assembly 23. Similarly, the C-clamps are bolted to the top of the second support portion 22 to press the rotating shaft 43 against the two bearings of the second support portion 22, thereby positioning the rotating shaft 43 in the radial direction of the cylinder 71. Thus, the rotating shaft 43 is rotatably engaged with the two bearings of the second support portion 22 and the constraint assembly 23.

[0068] In this embodiment, the constraint component 23 limits the cylinder 71, spline shaft 42, and rotating shaft 43 in the radial direction of the cylinder 71, preventing the cylinder 71 from swaying in the radial direction during rotation and improving the stability of the cylinder 71's rotation. In an exemplary embodiment, referring to... Figure 4 and Figure 8 As shown, the limiting mechanism 3 includes a limiting part 31 and a mounting assembly 32. The limiting part 31 is provided with a limiting groove 311 for placing the blade 72, such that the blade 72 is parallel to the working surface 11 and tangent to the circumferential surface of the cylinder 71 opposite to the working surface 11. Figure 8 The middle cylinder 71 is located on the circumferential surface at the top position. The mounting assembly 32 is disposed on the limiting part 31 and is detachably connected to the working surface 11 to adjust the distance between the limiting groove 311 and the cylinder 71.

[0069] In detail, the mounting component 32 can be bolts, pins, snap-fit ​​components, etc., to install the limiting part 31 onto the working surface 11. It should be noted that the mounting component 32 is detachably connected to the working surface 11, and the distance between the limiting part 31 and the support mechanism 2 and the cylinder 71 in the Y direction can be adjusted according to different pull rollers 7. This allows adjustment of the relative position of the blade 72 and the cylinder 71, making the blade 72 tangent to the circumferential surface of the cylinder 71, to weld different types of pull rollers 7.

[0070] Furthermore, the limiting groove 311 is located on the side of the limiting part 31 facing the cylinder 71. The limiting groove 311 limits the blade 72, making the blade 72 parallel to the working surface 11, thereby causing the blade 72 and the cylinder 71 to move away from the circumferential surface of the working surface 11. Figure 8 The vertices of the middle cylinder 71 are tangent.

[0071] In this embodiment, by setting an adjustable limiting part 31, it is applicable to limiting the blade 72 of different types of pull rollers 7, so that the blade 72 is tangent to the circumferential surface of the cylinder 71 away from the working surface 11 and the welding is completed.

[0072] In one exemplary embodiment, reference is made to Figure 4 and Figure 8 As shown, the limiting groove 311 includes a first limiting surface 3111 and a second limiting surface 3112. The first limiting surface 3111 is parallel to the working surface 11 to place the blade 72, such that the bottom surface of the blade 72 is parallel to the working surface 11. The second limiting surface 3112 is perpendicular to the first limiting surface 3111 and abuts against the first side 721 of the blade 72 away from the cylinder 71, such that the first side 721 of the plurality of blades 72 welded to the cylinder 71 is at the same distance from the axis of the cylinder 71.

[0073] In detail, the second limiting surface 3112 is vertically arranged and perpendicular to the first limiting surface 3111 and the working surface 11. The second limiting surface 3112 is located on the side of the limiting part 31 facing the cylinder 71. The second limiting surface 3112 abuts against the end of the first side edge 721 of the blade 72, thereby limiting the relative position of the blade 72 and the cylinder 71 in the Y direction.

[0074] The first limiting surface 3111 and the second limiting surface 3112 are perpendicular to each other, forming an L-shaped structure. Specifically, the first limiting surface 3111 is parallel to the working surface 11, and the first limiting surface 3111 and the circumferential surface of the cylinder 71 are opposite to the working surface 11. Figure 8 The apex of the middle cylinder 71 is at the same height.

[0075] In this way, the first limiting surface 3111 and the second limiting surface 3112 simultaneously limit the blade 72. When the blade 72 is placed in the limiting groove 311, the first limiting surface 3111 limits the blade 72 in the Z direction, and the second limiting surface 3112 limits the blade 72 in the Y direction, so that the bottom surface of the blade 72 contacts and is tangent to the circumferential surface of the cylinder 71 away from the working surface 11, so as to weld the blade 72 to the circumferential surface of the cylinder 71.

[0076] The embodiments of this disclosure also propose a processing method using the above-described processing apparatus with a stem-pulling roller 7, the processing method including operation S110-operation S140.

[0077] Operate S110 to install the angle positioning mechanism 4 onto the guide cones 73 and spline sleeves 74 at both ends of the first cylinder 71 or the second cylinder 71.

[0078] Operate S120 to install the first cylinder 71 or the second cylinder 71 onto the support mechanism 2.

[0079] Operation S130 rotates the angle positioning mechanism 4, causing the first cylinder 71 or the second cylinder 71 to rotate relative to the support mechanism 2 around its own axis.

[0080] In operation S140, the positioning mechanism 5 is sequentially fixed relative to each of the first through holes 4111 in the first through hole group 411 to position the first cylinder 71 at multiple corresponding positions, and the blade 72 of the limiting mechanism 3 is sequentially welded to the first cylinder 71; or the positioning mechanism 5 is sequentially fixed relative to each of the second through holes 4121 in the second through hole group 412 to position the second cylinder 71 at multiple corresponding positions, and the blade 72 of the limiting mechanism 3 is sequentially welded to the second cylinder 71.

[0081] In detail, before operating S110, the guide cone 73 is pre-installed with the positioning hole 711 at the first end of the cylinder 71, the spline sleeve 74 is pre-installed with the second end of the cylinder 71 opposite to the first end, and the blade 72 is machined. The support mechanism 2 and the limiting mechanism 3 are installed on the working surface 11 of the frame 1, and the positioning mechanism 5 is installed.

[0082] In operation S110, the angle positioning mechanism 4 is installed on the guide cones 73 and spline sleeves 74 at both ends of the first cylinder 71 or the second cylinder 71. Specifically, the spline sleeves 74 and guide cones 73 are respectively fitted with spline shafts 42 and rotating shafts 43. That is, the spline sleeves 74 at the second end of the first cylinder 71 or the second cylinder 71 are interference-fitted with the spline shafts 42. The mounting inner hole 731 at the end of the guide cone 73 away from the cylinder 71 is interference-fitted with the rotating shaft 43.

[0083] In operation S120, the first cylinder 71 or the second cylinder 71 is installed on the support mechanism 2. Specifically, the splined shaft 42 is mounted on the two bearings of the first support part 21 of the support mechanism 2 and rotated. The rotating shaft 43 is mounted on the two bearings of the second support part 22 of the support mechanism 2 and rotated.

[0084] In operation S130, the rotation angle positioning mechanism 4 drives the first cylinder 71 or the second cylinder 71 to rotate relative to the support mechanism 2 around its own axis, thereby improving the ease of rotation of the cylinder 71.

[0085] In operation S140, specifically, when welding the blades 72 to the two cylinders 71 respectively, the positioning mechanism 5 cooperates with the first through-hole group 411 to position the first cylinder 71. Specifically, the positioning mechanism 5 is sequentially fixed relative to each of the first through-holes 4111, thereby preventing the first cylinder 71 from rotating relative to the support mechanism 2 and positioning it in multiple corresponding positions. Simultaneously, the blades 72 of the limiting mechanism 3 are sequentially welded to the circumferential surface of the first cylinder 71.

[0086] The positioning mechanism 5 cooperates with the second through hole group 412 to position the second cylinder 71. Specifically, the positioning mechanism 5 is sequentially fixed relative to each of the second through holes 4121, thereby preventing the second cylinder 71 from rotating relative to the support mechanism 2 and positioning it in multiple corresponding positions. At the same time, the blade 72 of the limiting mechanism 3 is sequentially welded to the circumferential surface of the second cylinder 71.

[0087] In this embodiment, since the line connecting each first through hole 4111 in the first through hole group 411 and the adjacent second through hole 4121 in the second through hole group 412 to the axis of the cylinder 71 has a preset angle phase difference, the position of the blade 72 welded on the first cylinder 71 and the position of the blade 72 welded on the second cylinder 71 have a phase difference, thereby ensuring the accuracy of the phase difference of the blades 72 of the two stem-pulling rollers 7 and improving the processing accuracy of the stem-pulling rollers 7.

[0088] Furthermore, the limiting mechanism 3 limits each blade 72, so that the relative position of each blade 72 and the cylinder 71 is the same, reducing the circular runout value of the blade 72 of a single cylinder 71, improving the installation accuracy of the blade 72, thereby improving the uniformity of the gap between the two sets of blades 72 of the two pull rollers 7, and further improving the processing accuracy of the pull rollers 7.

[0089] In one exemplary embodiment, during operation S140, the welding positions at both ends of the cylinder 71 in the same radial direction are adjacent welding positions to symmetrically weld the blades 72.

[0090] Specifically, refer to Figure 8 As shown, eight blades 72 are welded to the circumferential surface of the cylinder 71, namely L1, L2, L3, L4, L5, L6, L7, and L8. Blade 72 L1 and blade 72 L5 are located at opposite ends of the same radial direction. Blade L2 and blade L6 are located at opposite ends of the same radial direction. Blade L3 and blade L7 are located at opposite ends of the same radial direction. Blade L4 and blade L8 are located at opposite ends of the same radial direction. The welding sequence can be L1, L5, L2, L6, L3, L7, L4, L8, to weld the blades 72 symmetrically.

[0091] In one exemplary embodiment, after the blade 72 is welded, the spiral rib 75 is fitted onto the circumferential surface of the guide cone 73. Then, the end of the spiral rib 75 is positioned opposite the end of the blade 72L1. Because there is a phase difference between the two sets of blades 72 on the two pull rollers 7, the positions of the two sets of spiral ribs 75 on the two pull rollers 7 are staggered.

[0092] Embodiments of this disclosure also provide a method for detecting the circular runout of the blade 72 of the stem-pulling roller 7. (Refer to...) Figure 11 and Figure 12As shown, the circular runout detection method includes: an interference fit between the external rotating shaft 6 and the spline sleeve 74 of the cylinder 71. The end of the rotating shaft 6 away from the cylinder 71 is clamped by a three-jaw chuck, and the end of the guide cone 73 away from the cylinder 71 is held in place by a center. Three marking points A, B, and C are selected at intervals along the first side 721 of the blade 72 and along the axial direction of the cylinder 71. The three-jaw chuck drives the cylinder 71 to rotate one revolution around its own axis. Simultaneously, refer to... Figure 12 As shown, the circular runout data of each blade 72 at three marked points, A1-A8, B1-B8, and C1-C8, are measured using a lever dial indicator. The circular runout value of the blade 72 is analyzed based on the circular runout data. If the circular runout value of the blade 72 is greater than 2, the blade 72 is returned to the welding process for correction.

[0093] According to the processing apparatus and processing method for the stem-pulling roller 7 provided in this embodiment, when using the processing apparatus, the guide cone 73 and spline sleeve 74 of the stem-pulling roller 7 are pre-installed at opposite ends of the cylinder 71. An angle positioning mechanism 4 is installed on the spline sleeve 74, the guide cone 73, and the spline sleeve 74. Then, the cylinder 71 is installed on the support mechanism 2, allowing the cylinder 71 and the angle positioning mechanism 4 to rotate relative to the support mechanism 2 around the axis of the cylinder 71. This facilitates the rotation of the cylinder 71 to the desired position for welding the blade 72, improving processing convenience.

[0094] When welding the blades 72 to the two cylinders 71 respectively, the positioning mechanism 5 cooperates with the first through-hole group 411 to position the first cylinder 71. Specifically, the positioning mechanism 5 is sequentially fixed relative to each of the first through-holes 4111, thereby preventing the first cylinder 71 from rotating relative to the support mechanism 2 and positioning it in the corresponding position so that the blades 72 can be sequentially welded to the circumferential surface of the first cylinder 71. The positioning mechanism 5 cooperates with the second through-hole group 412 to position the second cylinder 71. Specifically, the positioning mechanism 5 is sequentially fixed relative to each of the second through-holes 4121, thereby preventing the second cylinder 71 from rotating relative to the support mechanism 2 and positioning it in the corresponding position so that the blades 72 can be sequentially welded to the circumferential surface of the second cylinder 71. Because each first through hole 4111 in the first through hole group 411 and the adjacent second through hole 4121 in the second through hole group 412 have a preset angle phase difference between the line connecting them to the axis of the cylinder 71, the positions of the blades 72 welded on the first cylinder 71 and the blades 72 welded on the second cylinder 71 have a phase difference, thus ensuring the accuracy of the phase difference between the blades 72 of the two pulling rollers 7 and improving the machining accuracy of the pulling rollers 7. Furthermore, the limiting mechanism 3 limits each blade 72, making the relative position of each blade 72 with the cylinder 71 the same, reducing the circular runout value of the blades 72 of a single cylinder 71, improving the installation accuracy of the blades 72, thereby improving the uniformity of the gap between the two sets of blades 72 of the two pulling rollers 7 and further improving the machining accuracy of the pulling rollers 7.

[0095] The embodiments of this disclosure have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of this disclosure. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of this disclosure is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of this disclosure, and all such substitutions and modifications should fall within the scope of this disclosure.

Claims

1. A processing device suitable for stem-pulling rollers, characterized in that, The stem-pulling roller includes a cylinder, multiple blades, a guide cone, and a spline sleeve. The multiple blades are welded evenly spaced to the circumferential surface of the cylinder. The guide cone and spline sleeve are respectively disposed at opposite ends of the cylinder. The processing device includes: The frame is equipped with a working surface; A support mechanism is installed on the working surface to support the cylinder and allow the cylinder to rotate about its own axis; A limiting mechanism, installed on the working surface, is configured to limit the blade so that the blade is tangent to the circumferential surface of the cylinder opposite to the working surface; An angle positioning mechanism is detachably installed with the guide cone and the spline sleeve, and rotates synchronously with the cylinder. The angle positioning mechanism has a first group of through holes and a second group of through holes evenly spaced around the axis of the cylinder. Each first through hole in the first group and each adjacent second through hole in the second group have a preset angular phase difference between their lines and the axis of the cylinder. The positioning mechanism cooperates with the first through-hole group or the second through-hole group to position the two cylinders respectively, so that the blades welded to the two cylinders have the phase difference.

2. The processing apparatus according to claim 1, characterized in that, The number of the first through holes and the second through holes is the same as the number of the blades; and / or The first through-hole group and the second through-hole group are distributed at intervals in the radial direction of the cylinder.

3. The processing apparatus according to claim 1 or 2, characterized in that, The positioning mechanism includes: A bracket, installed on the working surface; and A positioning component, disposed on the bracket, is configured to detachably engage with the first or second through hole to prevent the angle positioning mechanism from rotating relative to the support mechanism.

4. The processing apparatus according to claim 1, characterized in that, The angle positioning mechanism includes an angle positioning part, which is installed on the spline sleeve and rotatably disposed on the support mechanism around the axis of the cylinder to allow the cylinder to rotate around its own axis. The first through hole group and the second through hole group are disposed on the angle positioning part.

5. The processing apparatus according to claim 4, characterized in that, The angle positioning mechanism also includes: The splined shaft is coaxially connected to the angle positioning part and is interference-fitted with the splined sleeve; and The rotating shaft is interference-fitted with the end of the guide cone away from the cylinder. The spline shaft and the rotating shaft are rotatably mounted on the support mechanism about the axis of the cylinder.

6. The processing apparatus according to claim 5, characterized in that, The key of the spline shaft is offset from the first through hole and the second through hole in the radial direction of the cylinder.

7. The processing apparatus according to claim 5, characterized in that, The supporting structure includes: The first support part is installed on the working surface and is rotatably connected to the spline shaft; A second support portion is installed on the working surface and rotatably connected to the rotating shaft; and A constraint assembly, mounted on the first support and / or the second support, is configured to prevent the rotation axis from moving in the radial direction of the cylinder.

8. The processing apparatus according to claim 1, characterized in that, The limiting mechanism includes: The limiting part is provided with a limiting groove for placing the blade, such that the blade is parallel to the working surface and tangent to the circumferential surface of the cylinder opposite to the working surface; and An installation component is provided on the limiting part and is detachably connected to the working surface to adjust the distance between the limiting groove and the cylinder.

9. The processing apparatus according to claim 8, characterized in that, The limiting groove includes: A first limiting surface is parallel to the working surface, such that the blade is parallel to the working surface; and The second limiting surface is perpendicular to the first limiting surface and abuts against the first side of the blade away from the cylinder, such that the first side of the plurality of blades welded to the cylinder is at the same distance from the axis of the cylinder.

10. A method for processing stem rollers using the processing apparatus according to any one of claims 1 to 9, characterized in that, Two cylinders are provided, including a first cylinder and a second cylinder respectively, and the processing method of the stem-pulling roller includes: The angle positioning mechanism is installed on the guide cones and spline sleeves at both ends of the first cylinder or the second cylinder; The first cylinder or the second cylinder is installed on the support mechanism; Rotating the angle positioning mechanism causes the first cylinder or the second cylinder to rotate relative to the support mechanism around its own axis; The positioning mechanism is sequentially fixed relative to each of the first through holes in the first through hole group to position the first cylinder at multiple corresponding positions, and the blade of the limiting mechanism is sequentially welded to the first cylinder; or The positioning mechanism is sequentially fixed relative to each of the second through holes in the second through hole group to position the second cylinder at multiple corresponding positions, and the blade of the limiting mechanism is sequentially welded to the second cylinder.

11. The method for processing stem-pulling rollers according to claim 10, characterized in that, The welding positions at both ends of the cylinder in the same radial direction are adjacent to each other to symmetrically weld the blades.

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