阅读说明：本技术 一种送布纠偏机构 (Cloth feeding deviation rectifying mechanism ) 是由 叶异淼 何俊强 于 2021-02-06 设计创作，主要内容包括：本发明公开了一种送布纠偏机构,包括用于夹持布料缝纫边缘的夹料组件,夹料组件包括转动连接的上夹板和下夹板,在上夹板和下夹板的转动中心处设有驱动转轴。上夹板的前部设有第一转轴,后部设有第二转轴。第一转轴、第二转轴和驱动转轴上绕设有至少一根能转动的上滚料带,上滚料带凸出于上夹板的上夹料面。下夹板绕的前设有第三转轴,后部设有第四转轴。第三转轴、第四转轴和驱动转轴上绕设有至少一根的下滚料带,下滚料带凸出于下夹板的上夹料面。送布纠偏机构设有一个通过驱动转轴带动上滚料带和下滚料带同步转动的电机,可以实现布料边缘的实时纠偏,在布料边缘输送到机针前保持直线状态,提高缝纫质量。(The invention discloses a cloth feeding deviation rectifying mechanism which comprises a material clamping assembly used for clamping a cloth sewing edge, wherein the material clamping assembly comprises an upper clamping plate and a lower clamping plate which are rotatably connected, and a driving rotating shaft is arranged at the rotating center of the upper clamping plate and the lower clamping plate. The front part of the upper clamping plate is provided with a first rotating shaft, and the rear part of the upper clamping plate is provided with a second rotating shaft. At least one rotatable upper rolling material belt is wound on the first rotating shaft, the second rotating shaft and the driving rotating shaft, and the upper rolling material belt protrudes out of the upper material clamping surface of the upper clamping plate. The front part of the lower clamping plate is provided with a third rotating shaft, and the rear part of the lower clamping plate is provided with a fourth rotating shaft. At least one lower rolling material belt is wound on the third rotating shaft, the fourth rotating shaft and the driving rotating shaft, and the lower rolling material belt protrudes out of the upper material clamping surface of the lower clamping plate. The cloth feeding deviation correcting mechanism is provided with a motor which drives the upper rolling material belt and the lower rolling material belt to synchronously rotate through the driving rotating shaft, so that the real-time deviation correction of the edge of the cloth can be realized, the edge of the cloth is kept in a linear state before being conveyed to a needle, and the sewing quality is improved.)

1. The utility model provides a work feed mechanism of rectifying, is including the double-layered material subassembly that is used for centre gripping cloth sewing edge, characterized by: the material clamping assembly comprises an upper clamping plate (1) and a lower clamping plate (2) which are connected in a rotating mode, and a driving rotating shaft (3) is arranged at the rotating center of the upper clamping plate (1) and the lower clamping plate (2); the front part of the upper clamping plate (1) is provided with a first rotating shaft (11), and the rear part is provided with a second rotating shaft (12); at least one rotatable upper rolling material belt (13) is wound on the first rotating shaft (11), the second rotating shaft (12) and the driving rotating shaft (3), and the upper rolling material belt (13) protrudes out of the upper material clamping surface of the upper clamping plate (1); a third rotating shaft (21) is arranged in the front of the lower clamping plate (2) in a winding manner, and a fourth rotating shaft (22) is arranged at the rear part of the lower clamping plate; at least one lower rolling material belt (23) is wound on the third rotating shaft (21), the fourth rotating shaft (22) and the driving rotating shaft (3), and the lower rolling material belt (23) protrudes out of the upper material clamping surface of the lower clamping plate (2); the device is provided with a motor (4) which drives the upper rolling material belt (13) and the lower rolling material belt (23) to synchronously rotate through a driving rotating shaft (3).

2. The feed deviation correcting mechanism as set forth in claim 1, wherein: the motor (4) be connected with initiative synchronizing wheel (41), drive pivot (3) be connected with follow-up synchronizing wheel (31), initiative synchronizing wheel (41) and follow-up synchronizing wheel (31) pass through hold-in range (42) and connect.

3. The feed deviation correcting mechanism as set forth in claim 1, wherein: the material pressing cylinder (5) is arranged for driving the upper clamping plate (1) and the lower clamping plate (2) to open and close.

4. The feed deviation correcting mechanism of claim 3, wherein: a spring (51) is provided for applying an elastic force to the upper clamp plate (1) to maintain a pressed state.

5. The feed deviation correcting mechanism as set forth in claim 1, wherein: the lower clamping plate (2) is provided with a lug part (24), and the driving rotating shaft (3) is rotatably arranged on the lug part (24) through a first bearing; the upper clamping plate (1) is rotatably connected with the driving rotating shaft (3) through a second bearing.

6. The feed deviation correcting mechanism as set forth in claim 1, wherein: and a photoelectric sensor (6) for detecting the edge position of the cloth is arranged above the upper clamping plate (1), and the photoelectric sensor (6) sends a signal to a control module for controlling the working state of the motor (4).

7. The feed deviation correcting mechanism as set forth in claim 1, wherein: one of the upper rolling material belt (13) and the lower rolling material belt (23) is crossed and wound.

8. The feed deviation correcting mechanism as set forth in claim 1, wherein: the first rotating shaft (11) and the second rotating shaft (12) are respectively sleeved with an upper belt wheel (14), and grooves clamped in the upper rolling material belt (13) are formed in the upper belt wheel (14) along the wheel circumference; third pivot (21) and fourth pivot (22) overlap respectively and be equipped with down band pulley (25), lower band pulley (25) along the circumference system have the recess of going into down to roll material area (23) into.

9. The feed deviation correcting mechanism as set forth in claim 1, wherein: the sections of the upper roll material belt (13) and the lower roll material belt (23) are circular.

Technical Field

The invention relates to the field of industrial sewing machines, in particular to a cloth feeding deviation rectifying mechanism.

Background

When the edge is sewn by the cloth, the straight line passing through the needle at the edge cannot be ensured because the cloth is longer and soft. Especially, when some annular fabrics need to be sewn, the annular fabrics are sleeved between the two sleeves, and the linear conveying of the edges of the fabrics cannot be kept in the middle of the sleeves, so that the sewing quality can be reduced.

Disclosure of Invention

The invention provides a cloth feeding deviation rectifying mechanism aiming at the current situation of the prior art, which ensures that the edge of cloth passes through a needle in a straight line during cloth conveying and improves sewing quality.

The technical scheme adopted by the invention for solving the technical problems is as follows: a cloth feeding deviation correcting mechanism comprises a material clamping assembly used for clamping a cloth sewing edge, the material clamping assembly comprises an upper clamping plate and a lower clamping plate which are connected in a rotating mode, and a driving rotating shaft is arranged at the rotating center of the upper clamping plate and the rotating center of the lower clamping plate. The front part of the upper clamping plate is provided with a first rotating shaft, and the rear part of the upper clamping plate is provided with a second rotating shaft. At least one rotatable upper rolling material belt is wound on the first rotating shaft, the second rotating shaft and the driving rotating shaft, and the upper rolling material belt protrudes out of the upper material clamping surface of the upper clamping plate. The front part of the lower clamping plate is provided with a third rotating shaft, and the rear part of the lower clamping plate is provided with a fourth rotating shaft. At least one lower rolling material belt is wound on the third rotating shaft, the fourth rotating shaft and the driving rotating shaft, and the lower rolling material belt protrudes out of the upper material clamping surface of the lower clamping plate. The motor is arranged for driving the upper material rolling belt and the lower material rolling belt to synchronously rotate through the driving rotating shaft.

In order to optimize the technical scheme, the invention also comprises the following improved technical scheme.

The motor is connected with a driving synchronous wheel, the driving rotating shaft is connected with a follow-up synchronous wheel, and the driving synchronous wheel and the follow-up synchronous wheel are connected through a synchronous belt.

The cloth feeding deviation rectifying mechanism is provided with a material pressing cylinder for driving the upper clamping plate and the lower clamping plate to open and close.

The cloth feeding deviation rectifying mechanism is provided with a spring which applies elastic force to the upper clamping plate to keep the material pressing state.

The lower clamping plate is provided with a lug part, and the driving rotating shaft is rotatably arranged on the lug part through a first bearing. The upper clamping plate is rotationally connected with the driving rotating shaft through a second bearing.

And a photoelectric sensor for detecting the edge position of the cloth is arranged above the upper clamping plate, and the photoelectric sensor sends a signal to a control module for controlling the working state of the motor.

One of the upper rolling material belt and the lower rolling material belt is crossed and wound.

The first rotating shaft and the second rotating shaft are respectively sleeved with an upper belt wheel, and grooves for clamping the upper rolling material belt are formed in the periphery of the upper belt wheel. The third rotating shaft and the fourth rotating shaft are respectively sleeved with a lower belt wheel, and the lower belt wheel is provided with a groove clamped into the lower rolling material belt along the circumference.

The sections of the upper rolling material belt and the lower rolling material belt are circular.

Compared with the prior art, the cloth feeding deviation correcting mechanism can realize real-time deviation correction of the cloth edge, and the cloth edge is kept in a linear state before being conveyed to a machine needle, so that the sewing quality is improved. The cloth feeding deviation correcting mechanism clamps the edge of cloth through the upper clamp plate and the lower clamp plate which can be opened and closed, utilizes the synchronous rotation of the upper roll material belt and the lower roll material belt to correct the edge position of the cloth during cloth feeding, and has the advantages of small structure and real-time deviation correction.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic perspective view of the embodiment of the present invention in a working state.

Fig. 3 is a partial structural schematic view of fig. 1.

Fig. 4 is a schematic perspective view of fig. 1 at another angle.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 4 are schematic structural views of the present invention.

Wherein the reference numerals are: the automatic feeding device comprises an upper clamping plate 1, a first rotating shaft 11, a second rotating shaft 12, an upper rolling belt 13, an upper belt wheel 14, a lower clamping plate 2, a third rotating shaft 21, a fourth rotating shaft 22, a lower rolling belt 23, lug parts 24, a lower belt wheel 25, a driving rotating shaft 3, a follow-up synchronizing wheel 31, a motor 4, a driving synchronizing wheel 41, a synchronous belt 42, a material pressing cylinder 5, a spring 51 and a photoelectric sensor 6.

The invention discloses a cloth feeding deviation correcting mechanism which comprises a material clamping assembly used for clamping a cloth sewing edge, wherein the material clamping assembly comprises an upper clamping plate 1, a lower clamping plate 2 and a driving rotating shaft 3 used for rotary connection.

The front part of the upper splint 1 is provided with a first rotating shaft 11, and the rear part is provided with a second rotating shaft 12. At least one rotatable upper material rolling belt 13 is wound on the first rotating shaft 11, the second rotating shaft 12 and the driving rotating shaft 3, and the upper material rolling belt 13 protrudes out of the upper material clamping surface of the upper clamping plate 1. The front part of the lower splint 2 is provided with a third rotating shaft 21, and the rear part is provided with a fourth rotating shaft 22. At least one lower material rolling strip 23 is wound on the third rotating shaft 21, the fourth rotating shaft 22 and the driving rotating shaft 3, and the lower material rolling strip 23 protrudes out of the upper material clamping surface of the lower clamping plate 2. A motor 4 which drives the upper material rolling belt 13 and the lower material rolling belt 23 to synchronously rotate through a driving rotating shaft 3 is arranged.

In the preferred embodiment, the lower jaw 2 has a lug 24, on which lug 24 the drive shaft 3 is rotatably arranged by means of a first bearing. The upper clamping plate 1 is rotationally connected with the driving rotating shaft 3 through a second bearing. The upper clamping plate 1 can be opened and closed relative to the lower clamping plate 2, and meanwhile, the driving rotating shaft 3 can independently rotate to drive the upper rolling belt 13 and the lower rolling belt 23 to rotate.

In other embodiments, the upper and lower clamping plates 1, 2 may also be rotatably connected to each other by a bearing, the shaft center of which is concentrically mounted with the shaft center of the driving rotating shaft 3. The driving rotating shaft 3 is connected with the upper clamping plate 1 or the lower clamping plate 2 through another bearing.

The cloth feeding deviation rectifying mechanism is provided with a material pressing cylinder 5 for driving the upper clamping plate 1 and the lower clamping plate 2 to open and close. The material pressing cylinder 5 can be a bidirectional cylinder and drives the upper clamping plate 1 and the lower clamping plate 2 to open and close. The material pressing cylinder 5 can also be a one-way cylinder, drives the upper clamping plate 1 to lift up, is provided with a spring 51 which applies elastic force to the upper clamping plate 1 to keep the material pressing state, and controls the upper clamping plate 1 to press the material through the elastic force.

The motor 4 is connected with a driving synchronizing wheel 41, the driving rotating shaft 3 is connected with a driven synchronizing wheel 31, and the driving synchronizing wheel 41 and the driven synchronizing wheel 31 are connected through a synchronous belt 42.

And a photoelectric sensor 6 for detecting the edge position of the cloth is arranged above the upper clamping plate 1, and the photoelectric sensor 6 sends a signal to a control module for controlling the working state of the motor 4. As shown in fig. 3, the cloth is clamped by the upper clamp plate 1 and the lower clamp plate 2 and conveyed in the direction a, the photoelectric sensor 6 detects the position of the edge of the cloth passing through the cloth feeding deviation correcting mechanism in real time, and when the edge of the cloth deviates to the outer side of the direction B, the motor 4 drives the upper rolling belt 13 and the lower rolling belt 23 to rotate, so that the edge of the cloth is corrected to the inner side of the direction B; when the cloth edge deviates to the inner side of the B direction, the motor 4 drives the upper material rolling belt 13 and the lower material rolling belt 23 to rotate reversely, and the cloth edge is corrected to the outer side of the B direction.

In order to synchronously control the cloth edge to be corrected to one side by the upper rolling belt 13 and the lower rolling belt 23, one of the upper rolling belt 13 and the lower rolling belt 23 is crossed and wound. In this embodiment, the number of the upper rolling belts 13 is one, the number of the lower rolling belts 23 is two, and the upper rolling belts 13 and the lower rolling belts 23 need to be spaced apart to avoid interference. The number of the upper roll belts 13 may be 1 to 5, and is also more according to the width of the upper nip plate 1. The number of the lower roll belt 23 may be also plural according to the width of the lower nip plate 2.

The first rotating shaft 11 and the second rotating shaft 12 are respectively sleeved with an upper belt wheel 14, and the upper belt wheel 14 is provided with a groove clamped into the upper rolling belt 13 along the circumference of the wheel. The third rotating shaft 21 and the fourth rotating shaft 22 are respectively sleeved with a lower belt wheel 25, and the lower belt wheel 25 is provided with a groove clamped into the lower material rolling belt 23 along the circumference.

The upper and lower roll belts 13 and 23 have a circular cross section. The upper rolling belt 13 and the lower rolling belt 23 can roll along with the cloth conveying when rotating around the driving rotating shaft 3 to perform deviation rectifying action. The grooves on the upper and lower pulleys 14, 25 may act as stops when rolling.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the invention.