A new cloth lowering mechanism

Abstract

The present application relates to a novel cloth lowering mechanism, comprising a swivel seat, inner and outer gear rings, a first drive device, a second drive device, and a cloth lowering roller linkage mechanism connected to the swivel seat, and a storage bucket. The first drive device drives the swivel seat to rotate, and drives the cloth lowering roller linkage mechanism and the storage bucket to rotate synchronously along the circumference of the swivel seat. The inner and outer gear rings and the swivel seat are arranged concentrically up and down. The power input end of the cloth lowering roller linkage mechanism is engaged with the inner and outer gear rings. By adjusting the speed difference between the swivel seat and the inner and outer gear rings, the power input end of the cloth lowering roller linkage mechanism is driven to perform differential motion. The present application achieves a flexible cloth lowering effect in which the cloth lowering roller linkage mechanism has an adjustable cloth lowering rate, controllable cloth lowering tension, and controllable cloth lowering width. It has the advantages of a simple structure, reliable functions, easy implementation, and strong practicality.

Description

Technical Field

[0001] The present application relates to the technical field of plush knitting machines, and in particular to a novel cloth lowering mechanism. Background Art

[0002] The cloth-laying mechanism of the plush knitting machine is one of the important components in the plush fabric knitting production process.

[0003] In the prior art, the cloth lowering mechanism consists of two cloth lowering rollers that rotate inward relative to each other, clamping the cloth, creating a downward tensioning and dragging force. As the knitting machine continues to operate, the cloth is continuously collected into a storage device located below the cloth lowering mechanism. The power for the cloth lowering rollers is currently transmitted from the knitting machine's main motor through a series of fixed-speed transmission mechanisms. The cloth lowering speed is solely dependent on the main motor speed, which is a fixed speed ratio. Therefore, the speed of the cloth lowering rollers in the prior art cloth lowering mechanism is fixed, and the cloth lowering mechanism can only lower the cloth at a fixed speed ratio before the cloth is collected in a roll in the storage device.

[0004] However, plush fabric products are different from general fabric products. The cloth lowering speed of the lower cloth roller has a direct impact on the stretching effect of the fabric and the quality of the fabric products. The existing cloth lowering mechanism cannot adjust the speed and tension of the lower cloth roller to pull down and collect the fabric according to demand. Therefore, plush fabric products of different colors and parameters, after passing through the constant speed lower cloth roller, are affected by the tension effect when the lower cloth roller pulls, which will cause different plush fabric products to have different degrees of inconsistent fabric width and distorted patterns. Whether the fabric width is stable and consistent and whether the pattern is distorted and deformed are important factors in product quality. This means that a cloth lowering mechanism with a fixed speed cannot meet the cloth lowering needs of complex and diverse plush fabric products, nor can it meet the increasingly high quality requirements of plush fabric products.

[0005] In addition, improper collection of long-haired fabrics will also cause secondary damage to the product quality of long-haired fabrics. For example, when long-haired fabrics are rolled together, on the one hand, the long pile of the fabric product will be squeezed and deformed, affecting the product quality. On the other hand, long-haired fabrics are thick, and the collection method of rolling takes up a lot of space, which means that workers need to frequently take out the products in the storage device, which greatly reduces work efficiency and cannot meet the collection needs of long fabric products.

[0006] Therefore, a new type of cloth lowering mechanism is in urgent need of. Summary of the Invention

[0007] The purpose of this application is to provide a new type of cloth discharging mechanism to solve the problems in the prior art such as the fixed cloth discharging speed and uncontrollable cloth discharging tension, the inability to meet the cloth discharging needs of complex and diverse plush fabric products, and the inability to meet the increasingly high quality requirements of plush fabric products.

[0008] The embodiments of the present application can be implemented through the following technical solutions:

[0009] A novel cloth lowering mechanism includes a rotating seat and a first drive device connected thereto, a cloth lowering roller linkage mechanism, and a storage bucket. The cloth lowering roller linkage mechanism is connected to the top of the rotating seat, the storage bucket is located below the rotating seat, and the top of the storage bucket is connected to the inner edge of the rotating seat. The first drive device drives the rotating seat to rotate along its circumferential direction, and drives the cloth lowering roller linkage mechanism and the storage bucket to rotate synchronously along the circumferential direction of the rotating seat.

[0010] The cloth lowering mechanism further includes an inner and outer gear ring and a second driving device. The inner and outer gear ring and the rotating seat are arranged concentrically above and below. The power input end of the cloth lowering roller linkage mechanism is engaged with the inner and outer gear ring, and the second driving device drives the inner and outer gear ring to rotate along the circumference of the rotating seat.

[0011] By adjusting the speed difference between the rotating seat and the inner and outer gear rings, the power input end of the lower cloth roller linkage mechanism is driven to perform differential motion.

[0012] Furthermore, the swivel seat is a ring-shaped rotating gear disk, the outside of the swivel seat is accommodated in the shell, and the lower part of the shell is connected to the support frame. Under the support of the support frame, the bottom of the storage barrel is suspended above the ground.

[0013] Furthermore, the second driving device is a variable frequency speed regulating driving mechanism, which adjusts the speed difference between the rotating seat and the inner and outer gear rings by changing the speed and / or direction output by the second driving device.

[0014] Furthermore, the lower cloth roller linkage mechanism includes a first internal transmission mechanism, a second internal transmission mechanism, a transmission box and a lower cloth roller. The lower cloth roller is a clamping assembly composed of two long rollers with a clearance fit. The lower cloth roller is arranged along the radial direction of the swivel seat. The two ends of the lower cloth roller are respectively fixedly connected to the table surface of the swivel seat through the second internal transmission mechanism and the transmission box.

[0015] Furthermore, the power input end of the second internal transmission mechanism is connected to the power output end of the first internal transmission mechanism and transmits power. The base of the first internal transmission mechanism is fixedly connected to the table of the rotating seat, and the power input end of the first internal transmission mechanism is engaged with the inner and outer gear rings.

[0016] Furthermore, the first internal transmission mechanism includes a transmission and an internal transmission gear, and the bottom of the transmission is fixedly connected to the table of the rotating seat;

[0017] The internal transmission gear is the power input end of the lower cloth roller linkage mechanism. The internal transmission gear is connected to the bottom of the transmission through the transmission shaft inside the transmission, and drives the gear on the top of the transmission to rotate. The gear on the top of the transmission is connected to the power input end of the second internal transmission mechanism for transmission.

[0018] Furthermore, the swivel seat includes a swivel track and a receiving groove, the swivel track is a ladder groove arranged along the circumference of the swivel seat, and the inner and outer gear rings are received in the swivel track;

[0019] The accommodating groove is a groove provided on the table surface of the rotating seat. The accommodating groove and the rotating track are radially connected. The internal transmission gear is accommodated in the accommodating groove.

[0020] Furthermore, the rotating track is arranged at the outer diameter of the rotating seat and is adjacent to the outer teeth of the rotating seat.

[0021] Furthermore, the housing includes a second drive connecting groove, an external transmission gear is accommodated in the second drive connecting groove, and the external teeth of the internal and external gear rings are connected to the second drive device through the external transmission gear.

[0022] Furthermore, the internal transmission gear is meshed with the inner teeth of the inner and outer gear rings for transmission.

[0023] The novel cloth lowering mechanism provided by the embodiments of the present application has at least the following beneficial effects:

[0024] The present application drives the inner and outer gear rings to rotate by adding a second driving device, and meshes the power input end of the lower cloth roller linkage mechanism fixedly connected to the swivel seat with the inner and outer gear rings, so that under the respective driving actions of the first driving device and the second driving device, the swivel seat drives the lower cloth roller linkage mechanism to rotate synchronously while the inner and outer gear rings can also rotate independently on the swivel seat, and the speed difference formed between the lower cloth roller linkage mechanism and the inner and outer gear rings drives the power input end of the lower cloth roller linkage mechanism to perform differential movement, thereby achieving the speed and / or direction output by the second driving device. The speed of the power input end driving the lower cloth roller linkage mechanism can be adjusted, thereby achieving a flexible cloth lowering effect of the lower cloth roller linkage mechanism with continuously adjustable cloth lowering rate, controllable cloth lowering tension, and controllable cloth lowering width, and has the advantages of simple structure, reliable function, easy implementation, and strong practicality.

[0025] The present application adopts an arrangement in which the lower cloth roller linkage mechanism, the storage barrel, and the swivel seat rotate synchronously, so that the lower cloth roller linkage mechanism and the storage barrel are relatively stationary. When the lower cloth roller linkage mechanism moves downward while clamping the fabric, the long-haired fabric can be continuously stacked into the storage barrel under the action of gravity, effectively expanding the space for collecting long-haired fabric products in the horizontal direction, so that long-haired fabric products with longer cloth can be collected in the same space, without the need for workers to frequently participate in taking out materials. In addition, compared with the storage method of collecting long-haired fabrics by roll collection, there is no squeezing force between the stacked fabrics during storage, which effectively avoids the squeezing and deformation of the long-haired fabric, improves product quality, and has the advantages of high production efficiency and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a new cloth lowering mechanism for this application;

[0027] Figure 2 This is a schematic diagram of the upper structure of a novel cloth lowering mechanism of this application;

[0028] Figure 3 is a schematic diagram of the internal transmission structure in this application;

[0029] Figure 4 This is a schematic diagram of the exploded state of the internal transmission structure in this application;

[0030] Figure 5 、 Figure 6 They are transmission schematic diagrams of the inner and outer ring gears matching the internal transmission gear under different rotational directions.

[0031] Numbers in the figure

[0032] S-housing; S1-first drive connecting slot; S2-second drive connecting slot; 1-swivel seat; 11-rotating track; 12-accommodating slot; 2-inner and outer gear rings; 3-first drive device; 4-second drive device; 5-first internal transmission mechanism; 51-transmission device; 52-internal transmission gear; 6-second internal transmission mechanism; 7-transmission box; 8-lower cloth roller; 9-main transmission mechanism; 10-external transmission gear; 20-storage bucket; 30-support frame. DETAILED DESCRIPTION

[0033] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0034] In addition, various components in the drawings are enlarged (thickened) or reduced (thinned) to facilitate understanding, but this practice is not intended to limit the scope of protection of this application.

[0035] Words importing the singular include the plural and vice versa.

[0036] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, words such as first and second are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance. Their names may be different in the detailed description and claims of the present application.

[0037] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0038] Figure 1 This is a schematic diagram of the overall structure of a new cloth lowering mechanism for this application. Figure 2 This is a schematic diagram of the upper structure of a new cloth lowering mechanism of this application, as shown in FIG. Figure 1 、 Figure 2 As shown, a novel cloth lowering mechanism includes a rotating seat 1, an inner and outer gear ring 2, a first driving device 3, a second driving device 4, a cloth lowering roller linkage mechanism, and a storage bucket 20. The cloth lowering roller linkage mechanism and the storage bucket 20 are both connected to the rotating seat 1. The first driving device 3 drives the rotating seat 1 to rotate, and drives the cloth lowering roller linkage mechanism and the storage bucket 20 to rotate synchronously along the circumference of the rotating seat 1.

[0039] The inner and outer gear rings 2 are concentrically arranged with the rotating seat 1, and the power input end of the lower cloth roller linkage mechanism is engaged with the inner and outer gear rings 2. The second driving device 4 drives the inner and outer gear rings 2 to rotate along the circumference of the rotating seat 1.

[0040] By adjusting the speed difference between the rotating seat 1 and the inner and outer gear rings 2, a speed difference is formed between the lower cloth roller linkage mechanism and the inner and outer gear rings 2, thereby driving the power input end of the lower cloth roller linkage mechanism to perform differential motion.

[0041] Specifically, the turntable 1 is a ring-shaped rotating gear disk, the middle part of the turntable 1 is connected from top to bottom, and along the radial direction of the turntable 1, the two ends of the lower cloth roller linkage mechanism are respectively connected to the top of the turntable 1. The outside of the turntable 1 is accommodated in the outer shell S and the lower part of the outer shell S is connected to the support frame 30. Under the support of the support frame 30, the turntable 1 is located above the ground and does not contact the ground.

[0042] The storage bucket 20 is a round barrel with an internal accommodating space. The storage bucket 20 is located below the rotating seat 1, and the top of the storage bucket 20 is connected to the inner edge of the rotating seat 1. The bottom of the storage bucket 20 is suspended above the ground and does not contact the ground, so as to avoid friction resistance between the ground and the storage bucket 20 when the rotating seat 1 drives the storage bucket 20 to rotate synchronously.

[0043] In some preferred embodiments, the housing S includes a first drive connecting groove S1, in which a main transmission mechanism 9 is accommodated. The turntable 1 is connected to the first drive device 3 through the main transmission mechanism 9, so that under the driving action of the first drive device 3, the turntable 1 can rotate and displace along its circumferential direction.

[0044] In some preferred embodiments, the housing S further includes a second drive connecting groove S2, in which an external transmission gear 10 is accommodated. The inner and outer gear rings 2 are connected to the second drive device 4 through the external transmission gear 10, so that under the driving action of the second drive device 4, the external transmission gear 10 drives the inner and outer gear rings 2 to rotate independently above the rotating base 1.

[0045] The power input end of the lower cloth roller linkage mechanism is meshed with the inner and outer gear rings 2. Since the lower cloth roller linkage mechanism is fixedly connected to the table surface of the swivel seat 1, and its power input end is meshed with the inner and outer gear rings 2, when a speed difference is formed between the rotational speeds of the swivel seat 1 and the inner and outer gear rings 2, the gear at the power input end of the lower cloth roller linkage mechanism will be rotated to compensate for the speed. Therefore, by changing the speed and / or direction of the inner and outer gear rings 2 driven by the second driving device 4, the speed difference between the swivel seat 1 and the inner and outer gear rings 2 can be adjusted, and then the speed of the power input end of the lower cloth roller linkage mechanism can be adjusted to achieve continuously adjustable cloth lowering rate of the lower cloth roller linkage mechanism.

[0046] In some preferred embodiments, the second drive device 4 is a continuously variable speed variable frequency speed regulation drive mechanism. For example, the second drive device 4 can be a DC speed regulation motor or an AC frequency regulation motor, or a frequency regulation mechanism coordinated with a reducer and a servo motor. The specific structure is not further limited here. It is sufficient as long as the speed and / or direction output by the second drive device 4 are adjustable to adjust the speed and / or direction of the external transmission gear 10 driven by the second drive device 4.

[0047] Specifically, such as Figure 1 As shown, the lower cloth roller linkage mechanism includes a first internal transmission mechanism 5, a second internal transmission mechanism 6, a transmission box 7 and a lower cloth roller 8. The turntable 1 is an annular gear disc structure. The lower cloth roller 8 is arranged along the radial direction of the turntable 1. The lower cloth roller 8 is a clamping assembly composed of two long rollers with variable clearance. The two ends of the lower cloth roller 8 are fixedly connected to the table of the turntable 1 through the second internal transmission mechanism 6 and the transmission box 7. Under the action of the second internal transmission mechanism 6 and the transmission box 7, the two long rollers of the lower cloth roller 8 are driven to rotate inward in opposite directions to form a force for clamping the fabric, tightening and dragging it downward, and stacking the fabric into the storage barrel 20.

[0048] The power input end of the second internal transmission mechanism 6 is connected to the power output end of the first internal transmission mechanism 5 and transmits power. The base of the first internal transmission mechanism 5 is fixedly connected to the table of the turntable 1, and the power input end of the first internal transmission mechanism 5 is engaged with the inner and outer gear rings 2, and the power is transmitted to the second internal transmission mechanism 6 through its power output end, and then the second internal transmission mechanism 6 drives the lower cloth roller 8 to rotate and clamp the fabric.

[0049] Figure 3 Schematic diagram of the internal transmission structure in this application, Figure 4 This is a schematic diagram of the decomposed state of the internal transmission structure in this application, as shown in FIG. Figure 3 、 Figure 4 As shown, the swivel base 1 includes a rotating track 11 , which is a ladder groove arranged along the circumference of the swivel base 1 . The inner and outer gear rings 2 are accommodated in the swivel base 1 , so that the swivel base 1 can rotate stably on the swivel base 1 .

[0050] In some preferred embodiments, the rotating track 11 is arranged at the outer diameter of the turntable 1 and is adjacent to the outer teeth of the turntable 1. The external transmission gear 10 is engaged with the outer teeth of the inner and outer gear rings 2 to optimize the layout and avoid occupying the internal space of the turntable 1, so that when the volume of the cloth lowering mechanism is the same, it can clamp fabrics with a wider width.

[0051] In some preferred embodiments, the swivel seat 1 further includes a receiving groove 12, which is a groove arranged on the table surface of the swivel seat 1. The power input end of the first internal transmission mechanism 5 is accommodated in the receiving groove 12, and the receiving groove 12 is radially connected to the rotating track 11, so that the power input end of the first internal transmission mechanism 5 can engage with the internal and external gear rings 2.

[0052] Specifically, the first internal transmission mechanism 5 includes a transmission 51 and an internal transmission gear 52. The internal transmission gear 52 is the power input end of the lower cloth roller linkage mechanism. The internal transmission gear 52 is accommodated in the accommodating groove 12. The internal transmission gear 52 is engaged with the internal teeth of the inner and outer gear ring 2 for transmission. The internal transmission gear 52 is connected to the bottom of the transmission 51 through the transmission shaft inside the transmission 51, and drives the gear on the top of the transmission 51 to rotate. The bottom of the transmission 51 is fixedly connected to the table of the turntable 1, so that under the action of the speed difference between the turntable 1 and the inner and outer gear ring 2, the internal transmission gear 52 can perform differential rotation in the accommodating groove 12 and transmit the rotation rate to the gear on the top of the internal transmission gear 52.

[0053] In some preferred embodiments, the internal transmission gear 52 is a magnetic transmission, and the gear on the top of the internal transmission gear 52 is a magnetic gear. Compared with other transmissions, the magnetic transmission has the advantages of simple structure, fewer components, few failure points, strong power transmission capability, and automatic slip protection under over-torque, which can improve transmission accuracy.

[0054] In some preferred embodiments, the power input end of the second internal transmission mechanism 6 is connected to the gear at the top of the first internal transmission mechanism 5 through a belt for transmission. Compared with chain and gear transmission, belt transmission can avoid transmission jamming to a certain extent and has the advantage of high transmission accuracy.

[0055] In some preferred embodiments, the swivel seat 1 and the main transmission mechanism 9 are transmitted through gear meshing, and the main transmission mechanism 9 is connected to the first driving device 3 through a belt, which is used to provide a power source for the rotation of the swivel seat 1 through the first driving device 3.

[0056] The following combination Figure 5 、 Figure 6 The transmission diagram of the inner and outer gear rings cooperating with the internal transmission gear under different rotation directions is used to describe in detail the acceleration and deceleration of a new type of cloth lowering mechanism of the present application.

[0057] like Figure 5As shown, when the outer transmission gear 10 drives the inner and outer gear rings 2 to rotate in the direction of the arrow shown in the figure, the first drive device 3 drives the swivel base 1 to rotate in the direction of the arrow shown in the figure through the main transmission mechanism 9, and drives the transmission 51 fixedly connected to the swivel base 1 to rotate synchronously, the swivel base 1 and the inner and outer gear rings 2 have the same direction of rotation. If the rotation speed of the swivel base 1 is greater than the rotation speed of the inner and outer gear rings 2, the inner transmission gear 52 will rotate in the clockwise direction of the arrow shown in the figure. At this time, the rotation speed transmitted to the top output end of the transmission 51 through the inner transmission gear 52 is relatively low, and the lower cloth roller linkage mechanism is equivalent to a decelerated rotation; if the rotation speed of the swivel base 1 is less than the rotation speed of the inner and outer gear rings 2, the inner transmission gear 52 will rotate counterclockwise, and the rotation speed transmitted to the top output end of the transmission 51 through the inner transmission gear 52 is relatively high, and the lower cloth roller linkage mechanism is equivalent to an accelerated rotation.

[0058] On the contrary, if Figure 6 As shown, when the outer transmission gear 10 drives the inner and outer gear rings 2 to rotate in the direction of the arrow shown in the figure, the first drive device 3 drives the swivel base 1 to rotate in the direction of the arrow shown in the figure through the main transmission mechanism 9, and drives the transmission 51 fixedly connected to the swivel base 1 to rotate synchronously, the swivel base 1 and the inner and outer gear rings 2 rotate in opposite directions, and the inner transmission gear 52 will rotate in the clockwise direction of the arrow shown in the figure. At this time, the speed transmitted to the top output end of the transmission 51 through the inner transmission gear 52 is relatively high, and the lower cloth roller linkage mechanism is equivalent to accelerating the rotation.

[0059] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A novel cloth lowering mechanism, comprising a rotating seat (1) and a first driving device (3) connected thereto, a cloth lowering roller linkage mechanism, and a storage barrel (20), characterized in that: The lower cloth roller linkage mechanism is connected to the upper part of the rotating seat (1), the storage barrel (20) is located below the rotating seat (1), and the top of the storage barrel (20) is connected to the inner edge of the rotating seat (1), and the first driving device (3) drives the rotating seat (1) to rotate along its circumferential direction, and drives the lower cloth roller linkage mechanism and the storage barrel (20) to rotate synchronously along the circumferential direction of the rotating seat (1); The cloth lowering mechanism further comprises an inner and outer gear ring (2) and a second driving device (4); the inner and outer gear ring (2) and the rotating seat (1) are arranged concentrically up and down; the power input end of the cloth lowering roller linkage mechanism is meshed with the inner and outer gear ring (2); and the second driving device (4) drives the inner and outer gear ring (2) to rotate along the circumference of the rotating seat (1); By adjusting the speed difference between the rotating seat (1) and the inner and outer gear rings (2), the power input end of the lower cloth roller linkage mechanism is driven to perform differential motion; The rotating seat (1) is a ring-shaped rotating gear disk. The outer portion of the rotating seat (1) is accommodated in the outer shell (S), and the lower portion of the outer shell (S) is connected to the support frame (30). Under the support of the support frame (30), the bottom of the storage barrel (20) is suspended above the ground. The second drive device (4) is a variable frequency speed regulating drive mechanism, which adjusts the speed difference between the rotating seat (1) and the inner and outer gear rings (2) by changing the speed and / or direction output by the second drive device (4); The lower cloth roller linkage mechanism comprises a first internal transmission mechanism (5), a second internal transmission mechanism (6), a transmission box (7) and a lower cloth roller (8); the lower cloth roller (8) is a clamping assembly composed of two long rollers with clearance fit; the lower cloth roller (8) is arranged along the radial direction of the rotating seat (1); and the two ends of the lower cloth roller (8) are fixedly connected to the table of the rotating seat (1) through the second internal transmission mechanism (6) and the transmission box (7); The power input end of the second internal transmission mechanism (6) is connected to the power output end of the first internal transmission mechanism (5) and transmits power. The base of the first internal transmission mechanism (5) is fixedly connected to the table of the rotating seat (1), and the power input end of the first internal transmission mechanism (5) is engaged with the inner and outer gear rings (2).

2. A novel cloth lowering mechanism according to claim 1, characterized in that: The first internal transmission mechanism (5) comprises a transmission (51) and an internal transmission gear (52), wherein the bottom of the transmission (51) is fixedly connected to the table surface of the rotating seat (1); The inner transmission gear (52) is the power input end of the lower cloth roller linkage mechanism. The inner transmission gear (52) is connected to the bottom of the transmission (51) through the transmission shaft inside the transmission (51), and drives the gear on the top of the transmission (51) to rotate. The gear on the top of the transmission (51) is connected to the power input end of the second inner transmission mechanism (6) for transmission.

3. A new cloth lowering mechanism according to claim 2, characterized in that: The rotating seat (1) comprises a rotating track (11) and a receiving groove (12), wherein the rotating track (11) is a ladder groove arranged along the circumference of the rotating seat (1), and the inner and outer gear rings (2) are received in the rotating track (11); The accommodating groove (12) is a groove provided on the table surface of the rotating seat (1), the accommodating groove (12) and the rotating track (11) are radially connected, and the internal transmission gear (52) is accommodated in the accommodating groove (12).

4. A novel cloth lowering mechanism according to claim 3, characterized in that: The rotating track (11) is arranged at the outer diameter of the rotating seat (1) and is adjacent to the outer teeth of the rotating seat (1).

5. A novel cloth lowering mechanism according to claim 4, characterized in that: The housing (S) comprises a second drive connection groove (S2), an external transmission gear (10) is accommodated in the second drive connection groove (S2), and the external teeth of the internal and external gear rings (2) are connected to the second drive device (4) via the external transmission gear (10).

6. A novel cloth lowering mechanism according to claim 5, characterized in that: The internal transmission gear (52) meshes with the internal teeth of the internal and external gear rings (2) for transmission.

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