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Abstract

The present invention provides a device including a plurality of thread-setting knife assemblies, a plurality of corresponding adjustment assemblies and a flipping drive assembly. Due to the flipping drive assembly, the thread-setting knife can be flipped to a position close to the epidermis placed on the mold, so as to facilitate the operator to perform thread-setting operations on the epidermis. Furthermore, the operator can adjust the height of the thread-setting knife relative to the epidermis through the adjustment assembly, so as to perform thread-setting more accurately and improve the quality of the final product. The flipping drive assembly can also flip the thread-setting knife to a position away from the epidermis, so as to facilitate the operator to place the epidermis, or perform subsequent hemming, hot pressing and other operations, so as to avoid being scratched by the thread-setting knife in subsequent operations. In summary, the thread-setting mechanism of the present invention can not only improve the quality of the final product, but also facilitate the operator to perform corresponding operations, thereby improving production efficiency, and also protecting the operator during the production process.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile workpiece processing equipment, and in particular relates to an alignment mechanism. Background Art

[0002] Car interiors are car products used inside cars, including car seat cushions, car dashboards, door interior panels, etc. The production process of car interiors is generally to cover the formed car workpiece with leather and other materials of a specific material to form the final car interior product. Among them, the leather used for covering is mostly composite leather with sewing lines such as decorative lines or splicing lines. Due to the complex structure of car interiors, these sewing lines are often long and complex in shape. They are prone to distortion and positional displacement during the covering process, which affects the appearance and function of the final product. Therefore, the sewing lines need to be aligned during the covering process.

[0003] In the prior art, workers usually manually operate the line cutting tool to perform the line setting operation, which is not only time-consuming and labor-intensive, but also has low production efficiency. In addition, there are obvious differences in the technical levels of different workers, making it difficult to ensure the quality and consistency of the final product. Summary of the invention

[0004] The present invention is made to solve the above problems, and aims to provide a semi-automatic alignment mechanism that can ensure the consistency of the final product. The present invention adopts the following technical solutions:

[0005] The present invention provides a thread alignment mechanism for aligning the sewing thread of a skin placed on a mold, and is characterized in that it comprises: at least one thread alignment knife for aligning the sewing thread; at least one adjustment component for adjusting the position of the thread alignment knife; and a flipping drive component for driving the thread alignment knife to flip so that the thread alignment knife is close to or away from the skin.

[0006] The alignment mechanism provided by the present invention may also have such technical features, wherein the flipping drive assembly includes: a bracket; a rotating shaft, which is installed on the bracket and extends in the horizontal direction; a swing arm, one end of which is rotatably installed on the rotating shaft, and the other end of which is equipped with the adjustment assembly; a gear, which is installed at one end of the rotating shaft; a rack, which is meshed with the gear; and a flipping drive cylinder, whose output end is fixedly connected to the rack.

[0007] The alignment mechanism provided by the present invention may also have such technical features, and also includes: a limit assembly, comprising: a limit piece, fixed in the middle of the rotating shaft, and having an extension portion extending outward; and a limit cylinder, the output end of which is transmission-connected to the extension portion, for limiting the rotation angle of the limit piece, thereby limiting the rotation angle of the line-setting knife.

[0008] The alignment mechanism provided by the present invention may also have such technical features, wherein the adjustment component includes: a support rod, installed at the end of the swing arm, and having a connecting rod through hole; an operating handle, used to adjust the height of the wire-setting knife; and a connecting rod, one end of which is connected to the wire-setting knife, and the other end is connected to the operating handle, and passes through the connecting rod through hole.

[0009] The alignment mechanism provided by the present invention may also have such technical features, wherein the support rod also has a plurality of guide rod through holes, the extension direction of the guide rod through holes is consistent with the extension direction of the connecting rod through holes, and the adjustment component also includes: a plurality of guide rods, each of which is connected to the line-fixing knife at one end and passes through the corresponding guide rod through holes respectively, for providing guidance during the adjustment process.

[0010] The alignment mechanism provided by the present invention may also have such a technical feature, wherein the adjustment component also includes: a locking cylinder, which is arranged between the support rod and the wire-aligning knife, and the output end abuts against one end of the wire-aligning knife, and is used to limit the height of the wire-aligning knife when the wire-aligning knife is flipped to a predetermined position.

[0011] The alignment mechanism provided by the present invention may also have such a technical feature, wherein, there are multiple wire-aligning knives, the ends of the multiple wire-aligning knives form a predetermined straight line or curve, and the number of the adjustment components is consistent with the number of the wire-aligning knives, which are respectively used to adjust the positions of the corresponding wire-aligning knives.

[0012] The alignment mechanism provided by the present invention may also have such a technical feature, wherein the flip angle range of the alignment knife is 150°-200°.

[0013] Function and Effect of the Invention

[0014] According to the thread alignment mechanism of the present invention, it includes a thread alignment knife, an adjustment component and a flip drive component. Due to the flip drive component, the thread alignment knife can be flipped to a position close to the epidermis placed on the mold, so as to facilitate the operator to perform thread alignment operations on the epidermis. Further, the operator can adjust the position of the thread alignment knife relative to the epidermis through the adjustment component, so as to be able to perform thread alignment more accurately and improve the quality of the final product; the flip drive component can also flip the thread alignment knife to a position away from the epidermis, so as to facilitate the operator to place the epidermis, or perform subsequent hemming, hot pressing and other operations, so as to avoid being scratched by the thread alignment knife in subsequent operations. In summary, the thread alignment mechanism of the present invention can not only improve the quality of the final product, but also facilitate the operator to perform corresponding operations, thereby improving production efficiency, and also protect the operator during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural exploded view of the central control edge wrapping device in an embodiment of the present invention;

[0016] Figure 2 is a structural diagram of the alignment mechanism in an embodiment of the present invention;

[0017] Figure 3 is a side view of the alignment mechanism in an embodiment of the present invention;

[0018] Figure 4 is a structural diagram of multiple line-setting knives in an embodiment of the present invention;

[0019] Figure 5 is a partial structural diagram of an adjustment component in an embodiment of the present invention;

[0020] Figure 6 is a partial structural diagram of a flip drive assembly in an embodiment of the present invention;

[0021] Figure 7 This is a structural diagram of the alignment mechanism in the embodiment of the present invention when it is in the pressing position;

[0022] Figure 8 It is a structural diagram of the alignment mechanism in the embodiment of the present invention when it is in the flip position.

[0023] Reference numerals:

[0024] Central control hemming device 10; upper mold 11; lower mold 12; alignment mechanism 20; threading knife assembly 21; connecting piece 211; threading knife 212; threading end 212a; adjustment assembly 22; support rod 221; guide rod through hole 2211; connecting rod through hole 2212; guide rod 222; operating handle 223; connecting rod 224; locking cylinder 225; flip drive assembly 23; flip bracket 231; rotating shaft 232; swing arm 233; gear 234; rack 235; adapter 2351; flip drive cylinder 236; limit assembly 24; limit piece 241; extension part 2411; limit bracket 242; limit connecting rod 243; abutment 2431; limit cylinder 244; limit column 245; proximity sensor 251; magnetic switch 252. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the line alignment mechanism of the present invention is described in detail below in conjunction with embodiments and drawings.

[0026] In the description of the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0027] <Example>

[0028] This embodiment provides a thread alignment mechanism for aligning a cover for covering, wherein the cover is a composite cover composed of multiple pieces of leather, and has multiple straight or curved sewing lines of different lengths on the cover.

[0029] Figure 1 It is a structural exploded diagram of the central control edge wrapping device in this embodiment.

[0030] like Figure 1 As shown, the central control hemming device 10 includes an upper mold 11 for carrying the central control frame to be covered, a lower mold 12 for carrying the skin for covering, and a line alignment mechanism 20 for aligning the sewing thread on the skin. The central control hemming device 10 also includes a plurality of hemming mechanisms for hemming the skin and a hot pressing mechanism for hot pressing the skin, etc., which are prior arts and will not be described in detail.

[0031] Figure 2 It is a structural diagram of the alignment mechanism in this embodiment.

[0032] Figure 3 It is a side view of the alignment mechanism in this embodiment.

[0033] like Figure 2 and Figure 3 As shown, the line alignment mechanism 20 includes a plurality of line alignment knife assemblies 21 , a plurality of adjustment assemblies 22 , a flip drive assembly 23 and a limit assembly 24 .

[0034] The thread-setting knife assembly 21 is used for setting the thread of the sewing thread.

[0035] Figure 4 4 is a structural diagram of multiple line-setting knife assemblies in this embodiment.

[0036] like Figure 2 and Figure 4 As shown, the threading knife assembly 21 includes a connecting member 211 and a threading knife 212. One end of the threading knife 212 is mounted on the connecting member 211 by a fixing member such as a screw, and the other end is a threading end 212a for threading. The connecting member 211 is mounted on the flip drive assembly 23.

[0037] In this embodiment, the number of the thread-fixing knife assemblies 21 is three, and correspondingly, the number of the thread-fixing knife 212 is three, the thread-fixing ends 212a of the three thread-fixing knives 212 respectively have a predetermined curvature, and the three thread-fixing ends 212a are arranged in sequence to form a curve with a predetermined shape and curvature, which matches the length and shape of the sewing thread.

[0038] The adjustment component 22 is used to adjust the position of the corresponding line-fixing knife component 21, that is, to adjust the position of the line-fixing end portion 212a.

[0039] Figure 5 1 is a structural diagram of the wire setting knife and the adjustment assembly in this embodiment.

[0040] like Figure 2 and Figure 5 As shown, the adjustment assembly 22 includes a support rod 221 , a plurality of guide rods 222 , an operating handle 223 , a linkage rod 224 and a locking cylinder 225 .

[0041] The support rod 221 is a square rod with a square cross section. Two guide rod through holes 2211 and a linkage rod through hole 2212 are provided on the support rod 221. The guide rod through hole 2211 is a circular through hole matching the guide rod 222. The linkage rod through hole 2212 is a circular through hole matching the linkage rod 224. The extension direction of the guide rod through hole 2211 is consistent with that of the linkage rod through hole 2212. In addition, in this embodiment, the support rods 221 of the plurality of adjustment components 22 are integrally formed square rods, and along the extension direction of the square rods, the square rods have a certain curvature, so that the three line-fixing ends 212a form a curve matching the sewing line.

[0042] One end of the guide rod 222 is fixedly connected to the connecting piece 211 and passes through the corresponding guide rod through hole 2211 to form a guiding fit, thereby playing a guiding role when adjusting the height of the line-setting knife 212 .

[0043] The operating handle 223 and the connecting rod 224 are used to adjust the height of the thread-setting knife 212 relative to the epidermis. One end of the operating handle 223 is rotatably mounted on the support rod 221, and the other end is spherical, which is convenient for the operator to grasp. The middle part of the operating handle 223 is rotatably connected to one end of the connecting rod 224, and the other end of the connecting rod 224 is fixedly connected to the connecting piece 211.

[0044] The locking cylinder 225 is arranged between the support rod 221 and the wire-fixing knife assembly 21, and the output end abuts against the end of the connecting piece 211 toward the support rod 221, and is used to lock the height of the wire-fixing knife 212 when the wire-fixing knife assembly 21 is flipped to a predetermined position, thereby preventing the operator from being injured.

[0045] Figure 6It is a partial structural diagram of the flip drive assembly in this embodiment.

[0046] like Figure 2 , Figure 3 and Figure 6 As shown, the flip driving assembly 23 includes a flip bracket 231 , a rotating shaft 232 , a swing arm 233 , a gear 234 , a rack 235 and a flip driving cylinder 236 .

[0047] Both ends of the rotating shaft 232 are respectively mounted on the flip bracket 231 through bearing assemblies, and the rotating shaft 232 extends in the horizontal direction.

[0048] One end of the swing arm 233 is rotatably mounted on the rotating shaft 232, and the other end is used to mount the wire cutter assembly 21. There are two swing arms 233, which are respectively mounted near the two ends of the rotating shaft 232. Three wire cutter assemblies 21 are mounted between the two ends of the two swing arms 233. In addition, two round rods are mounted between the two swing arms 233 to enhance the structural strength.

[0049] The gear 234 is fixedly connected to one end of the rotating shaft 232 and is coaxially arranged. The gear 234 meshes with the rack 235. The rack 235 extends in the vertical direction. The middle part of the rack 235 is connected to the output end of the flip driving cylinder 236 through an adapter. Therefore, under the drive of the flip driving cylinder 236, the rack 235 moves upward, drives the gear 234 to rotate clockwise, and the rotating shaft 232 rotates synchronously, thereby driving the swing arm 233 to flip clockwise, so that the thread cutting assembly 21 is close to the skin placed on the mold; similarly, under the drive of the flip driving cylinder 236, the rack 235 moves downward, drives the gear 234 to rotate counterclockwise, and the rotating shaft 232 rotates synchronously, thereby driving the swing arm 233 to flip counterclockwise, so that the thread cutting assembly 21 is away from the skin placed on the mold.

[0050] The limit assembly 24 is used to limit the flip angle of the swing arm 233 in two directions, that is, to limit the flip angle and position of the line-setting knife assembly 21. The limit assembly 24 includes a limit member 241, a limit bracket 242, a limit connecting rod 243, a limit cylinder 244 and a limit column 245, which are arranged at a position corresponding to clockwise flipping.

[0051] The limiting member 241 is fixedly mounted on the rotating shaft 232 and can rotate synchronously with the rotating shaft 232 . The limiting member 241 has an extending portion 2411 that extends outward and gradually narrows.

[0052] One end of the limiting link 243 is rotatably mounted on the limiting bracket 242, and the other end is rotatably mounted on the output end of the limiting cylinder 244. An abutment 2431 is mounted in the middle of the limiting link 243, and one side of the extension 2411 of the limiting link 241 has a structure matching the abutment 2431.

[0053] Figure 7 It is a structural diagram of the alignment mechanism in this embodiment when it is in the pressing position.

[0054] like Figure 7 As shown, when the threading knife assembly 21 is flipped to the pressing position, the extension part 2411 abuts against the abutment member 2431, thereby limiting the rotation angle of the stop member 241 and the rotating shaft 232, that is, limiting the flipping angle and position of the threading knife assembly 21. At this time, the threading knife assembly 21 is close to the skin on the mold, and the threading knife 212 is roughly vertical. The operator can further accurately adjust the height of the threading end 212a relative to the skin by operating the handle 223 and start the threading operation.

[0055] Figure 8 It is a structural diagram of the alignment mechanism in this embodiment when it is in the flipping position.

[0056] like Figure 8 As shown, the limiting assembly 24 further includes two limiting posts 245 , which are arranged on the side corresponding to the counterclockwise flipping, and the positions of the two limiting posts 245 correspond to the two swing arms 233 , respectively.

[0057] When the thread-setting knife assembly 21 is flipped to the flip position, the two swing arms 233 respectively contact the limit posts 245 on the corresponding sides, thereby limiting the rotation angle of the limit member 241 and the rotating shaft 232, that is, limiting the flip angle and position of the thread-setting knife assembly 21. At this time, in the vertical direction, the swing arm 233 and the thread-setting knife assembly 21 completely have no shielding on the mold and the skin, and the operator can place the skin on the mold, or start subsequent hemming, hot pressing and other operations through the corresponding industrial computer.

[0058] In this embodiment, the flip angle of the thread-setting knife assembly 21 is set to 150°-200°.

[0059] In addition, if Figure 2 , Figure 7 and Figure 8 As shown, a proximity sensor 251 is also provided on the side of the rack 235, which is set at a height corresponding to the flipping position. Two magnetically controlled switches 252 are also provided on the side of the flipping drive cylinder 236, which are respectively set at positions corresponding to the clamping position and the flipping position. Therefore, under the control of the corresponding industrial computer, automatic control can also be achieved. For example, when the proximity sensor 251 senses the adapter 2351, it means that it has been flipped into place and the wire-fixing knife assembly 21 is already in the predetermined flipping position. At this time, under the control of the industrial computer, multiple locking cylinders 225 will lock the corresponding wire-fixing knife 212 so that it will not be displaced again, thereby protecting the operator in subsequent operations.

[0060] Example Function and Effect

[0061] According to the alignment mechanism provided in this embodiment, it includes multiple thread-setting knife assemblies, multiple corresponding adjustment assemblies, and a flip drive assembly. Due to the flip drive assembly, the thread-setting knife can be flipped to a position close to the epidermis placed on the mold, so as to facilitate the operator to perform thread-setting operations on the epidermis. Furthermore, the operator can adjust the height of the thread-setting knife relative to the epidermis through the adjustment assembly, so as to perform thread-setting more accurately and improve the quality of the final product; the flip drive assembly can also flip the thread-setting knife to a position away from the epidermis, so as to facilitate the operator to place the epidermis, or perform subsequent hemming, hot pressing and other operations, so as to avoid being scratched by the thread-setting knife in subsequent operations. In summary, the thread-setting mechanism of the present invention can not only improve the quality of the final product, but also facilitate the operator to perform corresponding operations, thereby improving production efficiency, and also protect the operator during the production process.

[0062] Furthermore, there are multiple thread-setting knife assemblies, which are arranged in sequence, and multiple thread-setting ends form a straight line or a curve that matches the sewing thread. Therefore, after the thread-setting knife assembly is flipped into place, the operator can start the thread-setting operation by simply adjusting the relative height between the thread-setting end and the surface, and there is no need to adjust the thread-setting knife one by one according to the shape of the sewing thread and relying on experience. This greatly improves the production efficiency of automotive interiors, reduces the influence of workers' experience and technical level on product quality, improves product quality overall, and greatly improves the consistency of the final product.

[0063] The above embodiments are only used to illustrate specific implementation modes of the present invention, and the present invention is not limited to the description scope of the above embodiments.

[0064] In the above embodiment, the number of the thread-setting knives is three, and correspondingly, the number of the adjusting components is three. In other embodiments of the present invention, the number of the thread-setting knives and the adjusting components may also be set to different numbers according to the length and shape of the sewing thread.

[0065] In the above embodiment, the three thread-setting ends of the three thread-setting knives are arranged in sequence to form a curve matching the sewing thread. In other schemes of the present invention, according to the shape of the sewing thread, the thread-setting ends of the multiple thread-setting knives can also form corresponding straight lines, or curves with different shapes and curvatures.

[0066] In the above embodiment, the output ends of the rack and the flip driving cylinder extend in the vertical direction. In other embodiments of the present invention, the output ends of the rack and the flip driving cylinder may also extend in other directions.

[0067] In the above embodiment, the limiting assembly includes a connecting rod assembly for limiting the flipping angle and position of the thread-setting knife assembly when flipping clockwise. In other schemes of the present invention, the limiting assembly may also adopt other limiting structures in the prior art.

Claims

1. A thread alignment mechanism for aligning the sewing thread of a skin placed on a mold, characterized in that: include: A thread-setting knife assembly, comprising a plurality of thread-setting knives, for locating the sewing thread; A plurality of adjustment components, each used to adjust the position of the corresponding wire cutter; and A flip driving assembly, comprising a rotating shaft, two swing arms connected to the rotating shaft, and a flip driving cylinder, wherein the flip driving cylinder is used to drive the rotating shaft to drive the two swing arms to swing, thereby driving the thread cutting knife and the adjusting assembly to flip, so that the thread cutting knife is close to or away from the epidermis; and The limiting assembly is used to limit the flipping angle of the swing arm in two directions. Each of the line-fixing cutters has a line-fixing end portion for fixing a line, and the line-fixing end portion has a predetermined curvature. The thread-setting ends of the plurality of thread-setting knives are arranged in sequence to form a curve with a predetermined shape and curvature, and the curve matches the length and shape of the sewing thread. The adjustment component comprises: The support rod has a linkage rod through hole and a plurality of guide rod through holes extending in the same direction; An operating handle, used for adjusting the height of the line cutter relative to the support rod, one end of which is rotatably mounted on the support rod and the other end of which is spherical; A linkage rod, one end of which is connected to the thread-setting knife, and the other end of which is rotatably connected to the middle part of the operating handle and passes through the linkage rod through hole; A plurality of guide rods, each of which has one end connected to the line-setting knife and passes through the corresponding guide rod through hole, respectively, for providing guidance during the adjustment process; and A locking cylinder is arranged between the support rod and the wire cutter, and the output end of the locking cylinder abuts against one end of the wire cutter, and is used to lock the height of the wire cutter when the wire cutter is flipped to a predetermined position. The support rods of the plurality of adjustment assemblies are integrally formed square rods, which are mounted on the ends of the swing arms, and along the extending direction of the square rods, the square rods have a predetermined curvature, so that the plurality of alignment ends form the curves. The flip angle range of the plurality of line-setting knives is 150°-200°. The limiting component comprises: A limiter, fixed on the rotating shaft and capable of rotating synchronously with the rotating shaft, having an extension portion extending outward and gradually narrowing in size; The limit bracket and the limit cylinder are arranged at a position corresponding to the clockwise flip; A limit connecting rod, one end of which is rotatably mounted on the limit bracket, and the other end of which is rotatably mounted on the output end of the limit cylinder; an abutment member installed in the middle of the limiting link, one side of the extension portion has a structure matching the abutment member, and the abutment member is used to abut against the extension portion when the thread-fixing knife assembly is flipped to the pressing position, thereby limiting the rotation angle of the rotating shaft; and Two limit posts are arranged on the side corresponding to the counterclockwise flipping, and their positions correspond to the two swing arms respectively, and are used to abut against the two swing arms when the line-fixing knife assembly flips to the flipping position, so as to limit the rotation angle of the rotating shaft.

2. The line alignment mechanism according to claim 1, Features: Wherein, the flip driving component comprises: A bracket, wherein the rotating shaft is mounted on the bracket and extends in a horizontal direction; The swing arm has one end rotatably mounted on the rotating shaft and the other end is mounted with the adjusting assembly; A gear mounted on one end of the rotating shaft; a rack meshing with the gear; and The output end of the tilting drive cylinder is fixedly connected to the rack. A proximity sensor is provided on the side of the rack, and is arranged at a height corresponding to the flip position. Two magnetically controlled switches are arranged on the side of the flipping driving cylinder, and are respectively arranged at positions corresponding to the pressing position and the flipping position.

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