CN220724503U - Deviation correcting device for annular lower pendulum machine - Google Patents

Abstract

The utility model provides a deviation correcting device for an annular lower pendulum machine, which comprises: a drum rotatable about its own axis; the deviation correcting assemblies are uniformly distributed around the axis of the rotary drum; the deviation correcting assembly comprises a first driven wheel, a second driven wheel and an annular deviation correcting belt, the first driven wheel and the second driven wheel are arranged on the rotary drum at intervals along the axial direction of the rotary drum, and the axial directions of the first driven wheel and the second driven wheel are perpendicular to the radial direction of the deviation correcting assembly on the rotary drum; one end of the deviation correcting belt winds around the outer circumferential surface of the first driven wheel, the other end winds around the outer circumferential surface of the second driven wheel, and the part of the deviation correcting belt between the first driven wheel and the second driven wheel protrudes out of the outer circumferential surface of the rotary drum; the driving wheels are helical gears and coaxial with the rotary drum, are meshed with the first driven wheels, and can rotate around the axis of the driving wheels. The utility model can provide higher deviation correcting speed and can meet the requirements by being equipped with a common motor.

Description

Deviation correcting device for annular lower pendulum machine

Technical Field

The utility model relates to the technical field of sewing, in particular to a deviation correcting device for an annular lower hem machine.

Background

A sewing machine is a machine that interweaves or sews one or more layers of stitching material by forming one or more stitches on the stitching material with one or more stitching threads. With the development of technology, the application of automatic sewing is increasing. When the clothing hem is processed, the hem needs to be folded and sewn, so that an annular hem machine is needed, and the annular hem machine is one type of sewing machine. However, many garments such as T-shirts are flexible fabrics, and the positions of the stitches on the T-shirts are inevitably moved during the process of sewing the hems by the annular hemlet machine, so that the hemlines on the final T-shirts are distorted and skewed, which is very unattractive, and even the hems are folded and not sewn in place, which affects the sewing effect.

Based on the above, an automatic deviation correcting device is usually arranged on the annular lower hem machine, and a plurality of deviation correcting belts are arranged in the automatic deviation correcting device so as to correct the position of the lower hem in real time and ensure the sewing effect of the sewing materials. Even if the deviation correcting device is arranged, the deviation correcting speed is required, especially when the T-shirt is sewn, the cloth is high in elasticity, the higher deviation correcting speed is often required, namely the moving speed of the deviation correcting belt is high enough, so that the position of the T-shirt can be corrected in time, otherwise, the position of the T-shirt cannot be corrected in time due to the too slow deviation correcting speed, and the stitch is skewed.

Most of the transmission systems of the existing automatic deviation correcting devices comprise worm and gear transmission, such as the prior art with the authorized bulletin number of CN 210826625U and the name of 'sewing machine cloth feeding deviation correcting device', the prior art drives cloth to move through a deviation correcting belt to correct, and the transmission route for driving the deviation correcting belt to move is as follows: correcting drive shaft, central gear, planetary gear, a section of worm on the gear shaft of the planetary gear, worm wheel and correcting belt. The transmission mode in the prior art is gear transmission firstly, and then the deviation correcting belt can be driven through worm and gear transmission once. The worm gear is generally large in transmission ratio, so that the motor needs to increase the rotating speed in extremely short time to achieve the required deviation correcting speed, the motor is required to be provided with high requirements, the motor which is expensive to purchase is required to meet the requirement of use, meanwhile, the power consumption is large, in addition, parts required by the transmission mode are more, the structure is relatively complex, the occupied space is large, the number of times of power transmission is large, the transmission efficiency is low, and the stability and the durability of the deviation correcting device can be reduced due to the fact that the parts are more.

Disclosure of Invention

The utility model provides a deviation correcting device for an annular lower pendulum machine, which aims to provide higher deviation correcting speed through a smaller transmission ratio so that the common motor can meet the cloth deviation correcting requirement.

In order to achieve the above object, the present utility model provides a correction device for an annular skirt machine, comprising:

a drum rotatable about its own axis;

the deviation correcting assemblies are uniformly distributed around the axis of the rotary drum; the deviation correcting assembly comprises a first driven wheel, a second driven wheel and an annular deviation correcting belt, wherein a bevel gear is arranged on the first driven wheel, the first driven wheel and the second driven wheel are arranged on the rotary drum at intervals along the axial direction of the rotary drum, and the axial directions of the first driven wheel and the second driven wheel are perpendicular to the radial direction of the rotary drum; one end of the deviation correcting belt winds around the outer peripheral surface of the first driven wheel, the other end winds around the outer peripheral surface of the second driven wheel, and the part of the deviation correcting belt between the first driven wheel and the second driven wheel protrudes out of the outer peripheral surface of the rotary drum;

the driving wheels are helical gears and coaxial with the rotating drum, the driving wheels are meshed with the helical gears on the first driven wheels, and the driving wheels can rotate around the axis of the driving wheels.

Optionally, the deviation correcting device comprises a bearing, the deviation correcting belt winds the bearing, and the bearing pushes the deviation correcting belt to partially protrude out of the outer circumferential surface of the rotary drum. The correcting device for the annular lower pendulum machine further comprises a bearing, the bearing is arranged on the rotary drum, the correcting belt winds the bearing, and the bearing pushes the part, close to the first driven wheel, of the correcting belt to protrude out of the outer peripheral surface of the rotary drum.

Optionally, a lifting plate is arranged between two adjacent sets of deviation rectifying assemblies, the bearing is arranged on the lifting plate, and the lifting plate is arranged on the rotary drum.

Optionally, a supporting plate is installed in the rotary drum, and the supporting plate pushes up the part of the deviation rectifying belt between the first driven wheel and the second driven wheel to the part protruding out of the peripheral surface of the rotary drum.

The first driven wheel is provided with a first annular groove for placing the deviation rectifying belt, the second driven wheel is provided with a second annular groove for placing the deviation rectifying belt, one end of the deviation rectifying belt bypasses the first annular groove, and the other end of the deviation rectifying belt bypasses the second annular groove.

Optionally, at least one side of the first driven wheel is provided with a boss protruding along the axial direction of the first driven wheel, and the first annular groove is arranged on the boss.

Optionally, the transmission ratio of the driving wheel to the first driven wheel ranges from 1:3 to 1:1.

Optionally, a portion of the deviation correcting belt protruding from the outer circumferential surface of the drum is parallel to the axis of the drum.

Optionally, the deviation correcting device for the annular lower pendulum machine further comprises a rotary drum driving device, a deviation correcting shaft and a rotary drum driving shaft, the deviation correcting shaft, the rotary drum driving shaft and the rotary drum are coaxial, one end of the deviation correcting shaft penetrates through the rotary drum along the axial direction of the rotary drum and is connected with the driving wheel, the other end of the deviation correcting shaft extends into the deviation correcting driving device and is driven by the deviation correcting driving device, the rotary drum driving shaft is sleeved on the deviation correcting shaft, the output end of the rotary drum driving shaft is connected with the rotary drum, and the input end of the rotary drum driving shaft extends into the rotary drum driving device and is driven by the rotary drum driving device.

Optionally, the deviation correcting device comprises a first end cover and a second end cover, and the first end cover and the second end cover two ends of the rotary drum respectively.

According to the configuration, the driving wheel is used for transmitting deviation correcting power to the first driven wheel, the first driven wheel drives the deviation correcting belt wound on the first driven wheel to move, so that the deviation correcting belt corrects the cloth under the cooperation of the first driven wheel and the second driven wheel.

Drawings

It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the utility model and do not constitute any limitation on the scope of the utility model. Wherein:

FIG. 1 is a schematic view of a deviation correcting device for an annular skirt machine according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating the assembly of a correction belt in a correction device for an annular skirt machine according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a lifting plate, bearings and a correction belt in a correction device for an annular skirt machine according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating the assembly of a first end cap and a second end cap of a deviation correcting device for an annular skirt machine according to an embodiment of the present utility model;

fig. 5 is a cross-sectional view of fig. 4.

Wherein, the reference numerals are as follows:

10-a rotary drum; 11-a support plate; 20-correcting the offset axis; 30-a driving wheel; 40-a first driven wheel; 41-a first annular groove; 42-boss; 50-correcting deviation band; 60-a second driven wheel; 61-a second annular groove; 70-bearing; 71-a lifting plate; 80-a housing.

Detailed Description

In this document, unless otherwise indicated, the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "top," "bottom," and the like are used for indicating orientation or positional relationship based on the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have the orientation and operation of their features, and thus should not be construed as limiting the utility model.

Specific embodiments of the present utility model will be described in more detail below with reference to the drawings. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

Preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a deviation correcting device for an annular skirt machine according to an embodiment of the present utility model, and fig. 2 is an assembly schematic diagram of a deviation correcting belt in the deviation correcting device for an annular skirt machine according to an embodiment of the present utility model. Referring to fig. 1 and 2, an embodiment of the present utility model provides a correction device for an annular skirt machine, including a drum driving device, a correction driving device, a drum 10, a drum driving shaft 14, a correction shaft 20, a driving wheel 30 and a plurality of sets of correction assemblies, where the driving wheel 30 is coaxial with the drum 10, the correction shaft 20, the drum driving shaft 14 and the drum 10 are coaxial, one end of the correction shaft 20 passes through the drum 10 along a central axis of the drum 10 and is connected with the driving wheel 30, and a connection manner of the correction shaft 20 and the driving wheel 30 is not limited, for example, the correction shaft 20 and the driving wheel 30 may be connected through a spline, and the correction shaft 20 and the driving wheel 30 may also be connected through a flat key, it may be understood that the correction shaft 20 may drive the driving wheel 30 to rotate, thereby transmitting power of the correction driving device to the driving wheel 30. The driving wheel 30 is a bevel gear, and the other end of the deviation rectifying shaft 20 extends into and is driven by the deviation rectifying driving device. The rotary drum driving shaft 14 is sleeved on the deviation rectifying shaft 20, the output end of the rotary drum driving shaft 14 is connected with the rotary drum 10, the input end of the rotary drum driving shaft 14 extends into and is driven by the rotary drum driving device, the rotary drum driving device and the deviation rectifying driving device can be arranged in the shell 80, and the rotary drum driving shaft 14 and the deviation rectifying shaft 20 extend into the shell 80. The sets of correction assemblies are uniformly distributed around the circumference of the rotary drum 10, the number of sets of correction assemblies is not limited, for example, the correction assemblies can be three sets, four sets, five sets or six sets, etc., and according to the actual situation, the correction assemblies can be five sets, and the rotary drum 10 is divided into five equal parts along the circumference of the rotary drum 10. The deviation rectifying assembly comprises a first driven wheel 40, a second driven wheel 60 and a deviation rectifying belt 50, in this embodiment, the deviation rectifying belt 50 may be an elastic ring, which has the advantages of good elasticity and large friction, and may easily drive the cloth to move, and in other embodiments, the deviation rectifying belt 50 may also be a silicone ring. The first driven wheel 40 and the second driven wheel 60 are disposed on the drum 10 at intervals along the axial direction of the drum 10, and the respective axial directions of the first driven wheel 40 and the second driven wheel 60 are perpendicular to the radial direction of the drum 10, and it is understood that each set of deviation rectifying assemblies corresponds to one radial direction of the drum 10, and the respective axial directions of the first driven wheel and the second driven wheel in the set of deviation rectifying assemblies are perpendicular to the radial direction of the drum to which the set of deviation rectifying assemblies corresponds. The first driven wheel 40 is provided with a bevel gear and is meshed with the driving wheel 30, and the axial lead of the first driven wheel 40 is perpendicular to the axial lead of the driving wheel 30. The first driven wheel 40 is further provided with a first annular groove 41 for placing the deviation rectifying belt 50, and it is understood that the first annular groove 41 is located at the side edge of the bevel gear of the first driven wheel 40, and the axial lead of the first annular groove 41 is coincident with the axial lead of the bevel gear. The second driven wheel 60 is provided with a second annular groove 61 for placing the deviation rectifying belt 50, one end of the deviation rectifying belt 50 bypasses the first annular groove 41, the other end bypasses the second annular groove 61, and a section of the deviation rectifying belt 50 between the first driven wheel 40 and the second driven wheel 60 protrudes out of the peripheral surface of the rotary drum 10. It will be appreciated that the first driven pulley 40 and the second driven pulley 60 are disposed back and forth along the axial direction of the drum 10, so that the deviation correcting belt 50 can pull the cloth along the axial direction of the drum 10 for correcting the position of the cloth.

According to the configuration, the driving wheel 30 is used for transmitting the deviation rectifying power to the first driven wheel 40, the first driven wheel 40 drives the deviation rectifying belt 50 wound on the driving wheel to move, so that the deviation rectifying belt 50 rectifies the cloth under the cooperation of the first driven wheel 40 and the second driven wheel.

Further, referring to fig. 2 and 3, the correcting device for the annular skirt machine further includes a bearing 70, the bearing 70 is disposed on the drum 10, the correcting belt 50 passes around the bearing 70, and the bearing 70 pushes a portion of the correcting belt 50 close to the first driven wheel to protrude from the outer peripheral surface of the drum 10. Further, a lifting plate 71 is arranged between two adjacent sets of deviation rectifying assemblies, a bearing 70 is arranged on the lifting plate 71, and the lifting plate 71 is arranged on the rotary drum 10. In this way, the bearing 70 mounted on the lifting plate 71 can push the deviation rectifying belt 50 toward the outer circumference of the drum 10, and the protruding purpose of the deviation rectifying belt 50 is not affected even if the diameter of the first annular groove 41 is small, so that the diameter of the first annular groove 41 can be set smaller to prevent the deviation rectifying belt 50 from interfering with the driving wheel 30. The raising plate 71 is circular arc-shaped, and the center of the circular arc is on the axis of the rotary drum 10. Referring to fig. 3, the lifter plate 71 is provided with mounting holes for mounting with the bowl 10.

Preferably, a support plate 11 is installed in the drum 10, and the support plate 11 partially protrudes from the outer circumferential surface of the drum 10 by pushing up a portion of the deviation rectifying belt 50 between the first driven pulley 40 and the second driven pulley 60. Referring to fig. 2, the support plate 11 extends in the axial direction of the drum 10 and is positioned between the first driven pulley 40 and the second driven pulley 60, such that the support plate 11 is capable of supporting a length of the deviation correcting belt 50 between the first driven pulley 40 and the second driven pulley 60. In general, when sewing the cloth, the cloth is pressed on the rectifying belt 50, and the rectifying belt 50 is pressed to bend toward the inside of the drum 10 due to the pressure, so that the rectifying belt 50 cannot be attached to the cloth, the friction between the rectifying belt 50 and the cloth is reduced, the rectifying effect is finally affected, after the supporting plate 11 is added, the supporting plate 11 can support the rectifying belt 50 to force the rectifying belt 50 to attach to the cloth, the friction between the rectifying belt 50 and the cloth is improved, and the rectifying effect is ensured.

Further, at least one side of the first driven wheel 40 is provided with a boss 42 protruding in the axial direction thereof, and the first annular groove 41 is provided on the boss 42. It will be appreciated that the boss 42 is located on the helical gear side of the first driven wheel 40. The first driven wheel 40 may have a boss 42 on one side, or may have bosses 42 on both sides, and in this embodiment, the first driven wheel 40 has bosses 42 on both sides.

Alternatively, the transmission ratio of the driving wheel 30 to the first driven wheel 40 may range from 1:3 to 1:1. The utility model does not limit the requirement of the transmission ratio of the driving wheel 30 and the first driven wheel 40, and can determine according to practical situations, and the transmission ratio of the driving wheel 30 and the first driven wheel 40 can also be 1:1. 2:3 or 3:4, etc.

Preferably, the portion of the deviation rectifying belt 50 protruding from the outer circumferential surface of the drum 10 is parallel to the axis of the drum 10, so that the degree of adhesion of the deviation rectifying belt 50 to the cloth is improved.

Referring to fig. 4 and 5, the deviation rectifying device includes a first end cover 12 and a second end cover 13, wherein the first end cover 12 and the second end cover 13 cover two ends of the drum 10 respectively, and the first end cover 12, the second end cover 13 and the drum 10 jointly enclose the first driven wheel 40 and the second driven wheel 60 to play a role in dust prevention. In this embodiment, the bowl 10 is coupled to the bowl drive shaft 14 via the second end cap 13, thereby transmitting power from the bowl drive shaft 14 to the second end cap 13 and to the bowl 10. In other embodiments, the bowl 10 may also be directly coupled to the bowl drive shaft 14.

When the cloth sewing machine works, the rotary drum driving device drives the rotary drum driving shaft 14 to rotate, the rotary drum driving shaft 14 drives the rotary drum 10 to rotate, so that cloth can be sewn, when the cloth deviates from a correct position, the deviation correcting driving device drives the deviation correcting shaft 20 to rotate, the deviation correcting shaft 20 drives the driving wheel 30 to rotate, the driving wheel 30 is meshed with the first driven wheel 40 so as to drive the first driven wheel 40 to rotate, the first driven wheel 40 drives the deviation correcting belt 50 to move, the deviation correcting belt 50 moves around the first driven wheel 40 and the second driven wheel 60, and meanwhile, the deviation correcting belt 50 can tear the cloth by virtue of friction force, so that the aim of correcting the position of the cloth is fulfilled. In operation, the correction belt 50 does not always move in one direction, but reciprocates, by controlling whether the correction drive device outputs torque clockwise or counterclockwise.

It should be appreciated that references in the specification to "one embodiment," "an embodiment," "a particular embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be noted that, in the present description, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, the description is relatively simple because of corresponding to the method disclosed in the embodiment, and the relevant points refer to the description of the method section.

It should be further noted that although the present utility model has been disclosed in the preferred embodiments, the above embodiments are not intended to limit the present utility model. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art without departing from the scope of the technology, or the technology can be modified to be equivalent. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

It should be further understood that the terms "first," "second," "third," and the like in this specification are used merely for distinguishing between various components, elements, steps, etc. in the specification and not for indicating a logical or sequential relationship between the various components, elements, steps, etc., unless otherwise indicated.

It should also be understood that the terminology described herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present utility model. It must be noted that, as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. For example, reference to "a step" or "an apparatus" means a reference to one or more steps or apparatuses, and may include sub-steps as well as sub-apparatuses. All conjunctions used should be understood in the broadest sense. And, the word "or" should be understood as having the definition of a logical "or" rather than a logical "exclusive or" unless the context clearly indicates the contrary. Furthermore, implementation of the methods and/or apparatus in embodiments of the utility model may include performing selected tasks manually, automatically, or in combination.

Claims (10)

1. The utility model provides a deviation correcting device for annular lower hem machine which characterized in that includes:

a drum rotatable about its own axis;

the deviation correcting assemblies are uniformly distributed around the axis of the rotary drum; the deviation correcting assembly comprises a first driven wheel, a second driven wheel and an annular deviation correcting belt, wherein a bevel gear is arranged on the first driven wheel, the first driven wheel and the second driven wheel are arranged on the rotary drum at intervals along the axial direction of the rotary drum, and the axial directions of the first driven wheel and the second driven wheel are perpendicular to the radial direction of the rotary drum; one end of the deviation correcting belt winds around the outer peripheral surface of the first driven wheel, the other end winds around the outer peripheral surface of the second driven wheel, and the part of the deviation correcting belt between the first driven wheel and the second driven wheel protrudes out of the outer peripheral surface of the rotary drum;

the driving wheels are helical gears and coaxial with the rotating drum, the driving wheels are meshed with the helical gears on the first driven wheels, and the driving wheels can rotate around the axis of the driving wheels.

2. The apparatus according to claim 1, further comprising a bearing provided on the drum, the correction belt being wound around the bearing, the bearing pushing a portion of the correction belt near the first driven wheel to protrude from an outer peripheral surface of the drum.

3. The correction device for the annular skirt machine according to claim 2, wherein a lifting plate is arranged between two adjacent sets of correction assemblies, the bearing is arranged on the lifting plate, and the lifting plate is arranged on the rotary drum.

4. The deviation correcting device for the annular skirt machine according to claim 1, wherein a supporting plate is installed in the rotary drum, and the supporting plate pushes the part of the deviation correcting belt between the first driven wheel and the second driven wheel to protrude out of the outer circumferential surface of the rotary drum.

5. The correction device for the annular skirt machine according to claim 1, wherein the first driven wheel is provided with a first annular groove for placing the correction belt, the second driven wheel is provided with a second annular groove for placing the correction belt, one end of the correction belt bypasses the first annular groove, and the other end bypasses the second annular groove.

6. The correcting device for the annular skirt machine according to claim 5, wherein at least one side of the first driven wheel is provided with a boss protruding in an axial direction of the first driven wheel, and the first annular groove is provided on the boss.

7. The deviation correcting device for an annular skirt machine according to claim 1, wherein a transmission ratio of the driving wheel to the first driven wheel ranges from 1:3 to 1:1.

8. The deviation correcting device for an annular skirt machine according to claim 1, wherein a portion of the deviation correcting belt protruding from the outer circumferential surface of the drum is parallel to the axis of the drum.

9. The correcting device for the annular lower swing machine according to claim 1, further comprising a rotary drum driving device, a correcting shaft and a rotary drum driving shaft, wherein the correcting shaft, the rotary drum driving shaft and the rotary drum are coaxial, one end of the correcting shaft penetrates through the rotary drum along the axial direction of the rotary drum and is connected with the driving wheel, the other end of the correcting shaft extends into the correcting driving device and is driven by the correcting driving device, the rotary drum driving shaft is sleeved on the correcting shaft, the output end of the rotary drum driving shaft is connected with the rotary drum, and the input end of the rotary drum driving shaft extends into the rotary drum driving device and is driven by the rotary drum driving device.

10. The apparatus of claim 1, wherein the apparatus comprises a first end cap and a second end cap, the first end cap and the second end cap covering the two ends of the drum, respectively.