An encoder mounting mechanism

Abstract

The utility model discloses an encoder mounting mechanism relates to the field of textile and garment cutting technology, and it is characterized by comprising: driving shaft, both ends are fixed with driving chain disc, passive shaft, both ends rotatably are equipped with passive chain disc, and passive chain disc is connected through chain transmission with driving chain disc, and passive chain disc is equipped with encoder gear wheel, encoder component, including fixedly being equipped with the encoder fixed ring of passive shaft, the encoder seat of fixedly being equipped with the encoder fixed ring and the encoder of installing in the encoder seat, and the encoder is connected with gear shaft through the shaft coupling, and gear shaft is rotatably connected with the encoder seat, and one end of gear shaft is connected with encoder pinion, and encoder pinion is engaged with encoder gear wheel. The above-mentioned encoder mounting mechanism, encoder component is installed on the passive shaft, and the movement of the rough brick is indirectly detected through the rotation of the passive chain disc by the encoder, and the position of the rough brick after the elastic deformation of the driving shaft and the chain can be fed back in real time, and the cutting precision of cloth is ensured.

Description

Technical Field

[0001] This utility model relates to the field of textile and garment cutting technology, and in particular to an encoder mounting mechanism. Background Technology

[0002] In multi-layer cutting operations, high-precision control of the displacement of the fabric carrier (the rough block fixed to the chain) is required for accurate cutting of the upper layer of fabric. A motor-driven chain transmission system is typically used, with an encoder mounted on the system's drive shaft to detect displacement. A common installation method involves fixing a large gear on the drive shaft, which meshes with a small gear fixed to the encoder shaft to transmit the rotational motion of the drive shaft to the encoder.

[0003] However, this existing technology has significant drawbacks: First, due to the vacuum adsorption of the fabric, the rough brick is subjected to a large negative pressure, resulting in a heavy load when driven by the motor. Under this heavy load, the drive shaft and transmission chain undergo elastic deformation during operation. The encoder mounted on the drive shaft cannot detect this deformation, leading to a deviation between the feedback displacement signal and the actual displacement of the rough brick, thus affecting cutting accuracy. Second, when the motor reverses, the chain undergoes a switching process between loose and tight sides. During this process, the encoder on the drive shaft has already started rotating, but the rough brick has not moved immediately, which again leads to detection errors. Finally, the encoder shaft directly mounts gears and bears the meshing force, which can easily affect reading accuracy due to gear runout. Furthermore, direct force can easily damage the encoder, shortening its service life.

[0004] Therefore, there are still shortcomings and deficiencies in the existing technology. How to provide an encoder mounting mechanism that can ensure cutting accuracy and extend encoder service life is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an encoder mounting mechanism that solves the technical problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides an encoder mounting mechanism, comprising:

[0007] The drive shaft has drive chain discs fixed at both ends;

[0008] A passive shaft has passive chain discs rotatably mounted at both ends. The passive chain discs are connected to the driving chain discs via chain drive. The passive chain discs are equipped with encoder gears.

[0009] The encoder assembly includes an encoder retaining ring fixedly disposed on the driven shaft, an encoder mount fixedly disposed on the encoder retaining ring, and an encoder mounted on the encoder mount. The encoder is connected to a gear shaft via a coupling. The gear shaft is rotatably connected to the encoder mount. One end of the gear shaft is connected to an encoder pinion, which meshes with the encoder gear.

[0010] Preferably, the passive chain is rotatably connected to the passive shaft via a passive chain bearing.

[0011] Preferably, a bearing limiting sleeve is provided on one side of the passive chain bearing.

[0012] Preferably, both ends of the passive shaft are fixedly mounted on the tension fixing seat.

[0013] Preferably, the encoder's large gear is concentrically arranged with the passive chain.

[0014] Preferably, the encoder assembly further includes an encoder mounting bracket, which has an L-shaped structure. One side of the encoder mounting bracket is fixedly connected to the bottom of the encoder base, and the other side is detachably connected to the encoder retaining ring.

[0015] Preferably, the encoder mounting bracket is provided with a waist-shaped fixing hole, and the encoder mounting bracket is connected to the encoder fixing ring by bolts.

[0016] Preferably, one end of the encoder housing is provided with a bearing inner hole, a bearing is installed in the bearing inner hole, and the gear shaft is rotatably connected to the encoder housing through the bearing.

[0017] Preferably, a bearing retaining ring is provided on one side of the bearing.

[0018] Preferably, the gear shaft is threaded with a limiting nut, which is located on the other side of the bearing.

[0019] Compared to the aforementioned background technology, the encoder mounting mechanism provided by this utility model has the encoder assembly mounted on the driven shaft. The encoder indirectly detects the movement of the rough brick by detecting the rotation of the driven chain, and can provide real-time feedback on the position of the rough brick after the elastic deformation of the drive shaft and chain, ensuring the cutting accuracy of the fabric covering the rough brick on the cutting bed. Moreover, the encoder and the encoder pinion are connected by a coupling, so the encoder is not directly subjected to force, making it less prone to damage, and the encoder reading is not easily affected by gear runout, thereby extending its service life and ensuring cutting accuracy. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the encoder mounting mechanism provided in an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the encoder mounting mechanism from another perspective;

[0023] Figure 3 This is a schematic diagram of the encoder assembly provided in an embodiment of the present utility model;

[0024] Figure 4 for Figure 3 A cross-sectional view of the encoder component shown;

[0025] Figures 1 to 4 Chinese figure reference numerals: 1. Passive shaft; 11. Passive sprocket; 12. Encoder large gear; 13. Passive sprocket bearing; 14. Bearing limit sleeve; 15. Tensioner fixing seat; 2. Encoder assembly; 21. Encoder retaining ring; 22. Encoder base; 221. Bearing; 222. Bearing retaining ring; 23. Encoder; 24. Coupling; 25. Gear shaft; 251. Encoder pinion; 252. Limit nut; 26. Encoder mounting bracket; 261. Waist-shaped fixing hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] This utility model provides an encoder mounting mechanism. By mounting the encoder assembly 2 on the passive shaft 1, the position of the rough brick after the elastic deformation of the drive shaft and chain can be fed back in real time, solving the problem that the encoder 23 cannot accurately feed back the real-time position of the rough brick fixed on the chain in a multi-layer cutting bed.

[0029] Please refer to this as well. Figures 1 to 4 The encoder mounting mechanism provided by this utility model includes:

[0030] The drive shaft has drive chain discs fixed at both ends;

[0031] The passive shaft 1 has a passive chain disc 11 rotatably mounted at both ends. The passive chain disc 11 is connected to the driving chain disc via chain drive. The passive chain disc 11 is equipped with an encoder large gear 12.

[0032] The encoder assembly 2 includes an encoder retaining ring 21 fixedly mounted on the driven shaft 1, an encoder base 22 fixedly mounted on the encoder retaining ring 21, and an encoder 23 mounted on the encoder base 22. The encoder 23 is connected to a gear shaft 25 via a coupling 24. The gear shaft 25 is rotatably connected to the encoder base 22. One end of the gear shaft 25 is connected to an encoder pinion 251, which meshes with the encoder gear 12.

[0033] The drive shaft rotates actively, and the chain drives the driven chain 11 to rotate on the driven shaft 1 through the cooperation of the drive chain disc and the driven chain disc 11. The driven shaft 1 itself does not rotate. As the driven chain disc 11 rotates, it drives the encoder large gear 12 to rotate. Through the meshing of the encoder large gear 12 and the encoder small gear 251, the gear shaft 25 rotates. The encoder 23 is connected to the gear shaft 25 through the coupling 24, which drives the shaft of the encoder 23 to rotate. By analyzing and calculating the encoder 23 signal, the displacement of the chain can be known, which is the displacement of the rough brick fixed on the chain, to ensure the cutting accuracy of the cutting bed on the fabric covering the rough brick.

[0034] With this configuration, the encoder 23's detection position is set on the passive shaft 1, allowing real-time feedback on the position of the rough brick after the elastic deformation of the drive shaft and chain. The displacement calculated by the encoder 23 does not deviate from the actual displacement, thus not affecting the cutting accuracy of the fabric. Furthermore, the encoder 23 is connected to the gear shaft 25 via the coupling 24, and the encoder pinion 251 on the gear shaft 25 meshes with the encoder gear 12. The encoder 23 is not directly subjected to force, making it less prone to damage, and the encoder reading is not easily affected by gear runout.

[0035] In addition, in actual use, a drive motor is set to drive the drive shaft to rotate. A power chain is set in the middle of the drive shaft. The drive motor outputs rotational motion, which drives the power chain to rotate through the transmission chain, thereby driving the drive shaft to rotate.

[0036] In some embodiments, please refer to the following: Figures 1 to 2 The passive chain 11 is rotatably connected to the passive shaft 1 through the passive chain bearing 13.

[0037] The passive sprocket bearing 13 is sleeved on the passive shaft 1, and the passive sprocket 11 is rotatably mounted on the passive shaft 1 via the passive sprocket bearing 13. When the drive shaft rotates, the passive sprocket 11 is driven to rotate through the chain and the drive sprocket, while the passive shaft 1 itself does not rotate.

[0038] In some embodiments, please refer to the following: Figures 1 to 2 A bearing limiting sleeve 14 is provided on one side of the passive chain bearing 13.

[0039] The passive chain 11 can be positioned by setting the bearing limiting sleeve 14. The bearing limiting sleeve 14 presses against the inner ring of the passive chain bearing 13, thereby axially positioning the passive chain 11.

[0040] In some embodiments, please refer to the following: Figures 1 to 2 The two ends of the passive shaft 1 are fixedly mounted on the tension fixing seat 15.

[0041] Both ends of the driven shaft 1 are fixed to the tensioning base 15 with bolts, ensuring that the driven shaft 1 remains stationary. When the rough brick needs to move in the reverse direction, the chain between the driving sprocket and the driven sprocket 11 first changes its tension side. During this process, the bolts connecting the driven shaft 1 and the tensioning base 15 are loosened, allowing the driven shaft 1 to move. By changing the distance between the driven shaft 1 and the driving shaft, the tension side of the chain can be changed. During this chain tension side change, neither the rough brick nor the encoder 23 shafts rotate. After the chain tension side change is completed, the driven shaft 1 is re-fixed to the tensioning base 15 with bolts. The driving shaft rotates in the reverse direction, causing the rough brick to move in the reverse direction. There is no elastic deformation between the encoder 23 and the rough brick, and it is unaffected by the tension side. The encoder 23 can provide real-time feedback on the position of the rough brick.

[0042] In some embodiments, please refer to the following: Figures 1 to 2 The encoder's large gear 12 and the passive chain 11 are concentrically arranged.

[0043] The concentric arrangement ensures that the rotation of the encoder's large gear 12 and the driven chain 11 is completely synchronized, so that the encoder 23 can reflect the true position of the rough brick without distortion, ensuring the cutting accuracy of the fabric covering the rough brick on the cutting bed.

[0044] In some embodiments, please refer to the following: Figures 1 to 4 The encoder assembly 2 also includes an encoder mounting bracket 26, which has an L-shaped structure. One side of the encoder mounting bracket 26 is fixedly connected to the bottom of the encoder base 22, and the other side is detachably connected to the encoder retaining ring 21.

[0045] In some embodiments, please refer to the following: Figures 3 to 4The encoder mounting bracket 26 is provided with a waist-shaped fixing hole 261, and the encoder mounting bracket 26 is connected to the encoder fixing ring 21 by bolts.

[0046] The waist-shaped fixing hole 261 is located on the side of the encoder mounting bracket 26 used for connection with the encoder retaining ring 21. Bolts pass through the waist-shaped fixing hole 261 and connect to the encoder retaining ring 21, thereby fixing the encoder mounting bracket 26 to the encoder retaining ring 21. By adjusting the position of the encoder mounting bracket 26, allowing the bolts to pass through the waist-shaped fixing hole 261 at different positions to connect with the encoder retaining ring 21, the distance between the encoder pinion 251 and the encoder gear 12 can be changed, causing the encoder pinion 251 and encoder gear 12 to engage tightly. With this configuration, the encoder 23 signal is more stable, and the clamping force is not directly applied to the encoder 23 shaft, resulting in a longer service life for the encoder 23.

[0047] In addition, the encoder retaining ring 21 is circular and includes two semi-circular ring-shaped components that can be connected as one piece. When in use, the encoder retaining ring 21 is first fitted onto the driven shaft 1. After adjusting the distance between the encoder pinion 251 and the encoder gear 12 along the axial direction of the driven shaft 1, the encoder pinion 251 and the encoder gear 12 are meshed and then fixed.

[0048] In some embodiments, please refer to the following: Figures 1 to 4 The encoder base 22 has a bearing inner hole at one end, and a bearing 221 is installed in the bearing inner hole. The gear shaft 25 is rotatably connected to the encoder base 22 through the bearing 221.

[0049] In some embodiments, please refer to the following: Figures 3 to 4 A bearing retainer ring 222 is provided on one side of the bearing 221.

[0050] By setting the bearing retainer ring 222, the bearing 221 can be precisely axially positioned and fixed, preventing unnecessary axial movement of the bearing 221 within the bearing bore.

[0051] In some embodiments, please refer to the following: Figures 3 to 4 The gear shaft 25 is threadedly connected to a limit nut 252, which is located on the other side of the bearing 221.

[0052] Specifically, the gear shaft 25 has an external thread on the side near the coupling 24. The limiting nut 252 is threaded to the gear shaft 25 through the external thread. After tightening the limiting nut 252, it can press against the inner ring of the bearing 221. By setting the limiting nut 252, the gear shaft 25 can be precisely axially positioned and fixed, thereby locking the entire gear shaft 25 in the axial position and preventing any unwanted axial movement.

[0053] The bearing retaining rings 222 and the limiting nuts 252 on both sides of the bearing 221 cooperate with each other to ensure that the bearing 221 will not move axially and to ensure structural stability.

[0054] The encoder mounting mechanism provided by this utility model has an encoder assembly 2 mounted on a driven shaft 1. The encoder 23 indirectly detects the movement of the rough brick by detecting the rotation of the driven chain 11. It can provide real-time feedback on the position of the rough brick after the elastic deformation of the drive shaft and chain, ensuring the cutting accuracy of the fabric covering the rough brick on the cutting bed. The driven chain 11 on the driven shaft 1 only rotates when the chain actually moves, thus providing real-time feedback on the position of the rough brick after reverse rotation. This avoids a large deviation between the displacement calculated by the encoder 23 and the actual displacement due to the presence of a loose or tight side in the chain. Moreover, the encoder 23 is connected to the encoder pinion 251 via a coupling 24. The encoder 23 is not directly subjected to force, making it less prone to damage, and the reading of the encoder 23 is not easily affected by gear runout.

[0055] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0056] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An encoder mounting mechanism, characterized in that, include: The drive shaft has drive chain discs fixed at both ends; A passive shaft (1) is provided with a passive chain disc (11) at both ends, which is rotatably provided. The passive chain disc (11) is connected to the active chain disc via chain drive. The passive chain disc (11) is provided with an encoder gear (12). The encoder assembly (2) includes an encoder retaining ring (21) fixedly disposed on the driven shaft (1), an encoder housing (22) fixedly disposed on the encoder retaining ring (21), and an encoder (23) mounted on the encoder housing (22). The encoder (23) is connected to a gear shaft (25) via a coupling (24). The gear shaft (25) is rotatably connected to the encoder housing (22). One end of the gear shaft (25) is connected to an encoder pinion (251), which meshes with the encoder gear (12).

2. The encoder mounting mechanism according to claim 1, characterized in that, The passive chain (11) is rotatably connected to the passive shaft (1) via a passive chain bearing (13).

3. The encoder mounting mechanism according to claim 2, characterized in that, The passive chain bearing (13) is provided with a bearing limiting sleeve (14) on one side.

4. The encoder mounting mechanism according to claim 1, characterized in that, Both ends of the passive shaft (1) are fixed to the tension fixing seat (15).

5. The encoder mounting mechanism according to claim 1, characterized in that, The encoder gear (12) is concentrically arranged with the passive chain (11).

6. The encoder mounting mechanism according to claim 1, characterized in that, The encoder assembly (2) further includes an encoder mounting bracket (26), which has an L-shaped structure. One side of the encoder mounting bracket (26) is fixedly connected to the bottom of the encoder base (22), and the other side is detachably connected to the encoder retaining ring (21).

7. The encoder mounting mechanism according to claim 6, characterized in that, The encoder mounting bracket (26) is provided with a waist-shaped fixing hole (261), and the encoder mounting bracket (26) is connected to the encoder fixing ring (21) by bolts.

8. The encoder mounting mechanism according to claim 1, characterized in that, The encoder housing (22) has a bearing inner hole at one end, and a bearing (221) is installed in the bearing inner hole. The gear shaft (25) is rotatably connected to the encoder housing (22) through the bearing (221).

9. The encoder mounting mechanism according to claim 8, characterized in that, One side of the bearing (221) is provided with a bearing retainer (222).

10. The encoder mounting mechanism according to claim 9, characterized in that, The gear shaft (25) is threadedly connected to a limiting nut (252), which is located on the other side of the bearing (221).

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