CN209873296U

CN209873296U - One-way driving mechanism for fur machine feeding disc

Info

Publication number: CN209873296U
Application number: CN201920366485.4U
Authority: CN
Inventors: 黄道生
Original assignee: TAIZHOU JIAJING SEWING MACHINE CO Ltd
Current assignee: TAIZHOU JIAJING SEWING MACHINE CO Ltd
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2019-12-31
Anticipated expiration: 2029-03-21

Abstract

The utility model provides an one-way driving mechanism for fur machine feed table, which belongs to the technical field of sewing machines. The mechanism comprises a feeding shaft for fixedly connecting a feeding disc, a clutch driving body is sleeved outside the feeding shaft, at least one-way bearing is arranged in the clutch driving body, the outer ring of the one-way bearing is fixedly connected to the inner side wall of the clutch driving body, the inner ring of the one-way bearing is connected with the feeding shaft, and the clutch driving body is driven by a power mechanism of a fur machine to realize reciprocating swing. This one-way actuating mechanism structure is simpler, reduces the assembly degree of difficulty by a wide margin, can guarantee the rotational stability of pay-off dish simultaneously, dependable performance and low cost.

Description

One-way driving mechanism for fur machine feeding disc

Technical Field

The utility model belongs to the technical field of special sewing machine, especially a one-way actuating mechanism for fur machine feed table.

Background

The fur sewing machine is a special sewing machine, is mainly used for sewing various furs such as mink fur, fox fur, bear fur and the like, but can also be used for sewing shoes, hats, gloves and the like. The fur machine is the same as a common sewing machine in structure, and also comprises a thread take-up device, a thread hooking device, a feeding device, a pressing device, a lubricating device and the like. Wherein, material feeding unit includes the horizontal main shaft that is driven by the motor, horizontal main shaft passes through eccentric link mechanism and connects the porter bar, the porter bar is located the below of main shaft and is perpendicular with the main shaft level, swing back and forth through the porter bar makes the porter bar unidirectional rotation, the top rigid coupling of porter bar has the delivery wheel, in the course of making up, with the vertical clamp of surface fabric between the delivery wheel and the pressure material wheel among the press device, through the anticlockwise unidirectional rotation of delivery wheel, push the surface fabric to the place ahead, in order to guarantee that the delivery wheel unidirectional rotation all the time, be equipped with one-way actuating mechanism between porter bar and porter bar, make the delivery wheel pay-off with step-.

The existing one-way driving mechanism of the feeding wheel is generally complex in structure, such as patent documents disclosed by the intellectual property office of China: a one-way driving mechanism of a fur machine feeding wheel (application number CN 200920121079.8; publication No. CN201395692 discloses a unidirectional driving mechanism comprising: comprises a feeding shaft for fixedly connecting a feeding wheel, and is characterized in that the feeding shaft is fixedly sleeved with a one-way wheel, the outside of the one-way wheel is sequentially sleeved with a movable ring and a fixed ring which can axially fix the one-way wheel from top to bottom, the movable ring is driven by a power mechanism of the fur machine, the fixed ring is fixedly connected with a machine shell, a plurality of movable grooves which are uniformly distributed according to the circumference and gradually increase towards the clockwise rotation direction of the movable ring are arranged between the one-way wheel and the movable ring as well as between the one-way wheel and the fixed ring, each movable groove is respectively provided with an upper roller and a lower roller which are vertically superposed, the upper roller can simultaneously contact the movable ring and the one-way wheel, the lower roller can simultaneously contact the fixed ring and the one-way wheel, and an upper spring and a lower spring are fixedly arranged on the side wall of one end of each movable groove, which is positioned at the maximum groove width, the two ends of the upper spring respectively act on the upper roller and the one-way wheel, and the two ends of the lower spring respectively act on the lower roller and the one-way wheel. The above-mentioned unidirectional driving structure adopts more spare and accessory parts, such as rotating ring, fixed ring, unidirectional wheel, upper spring, lower spring, upper roller and lower roller, etc., in order to realize accurate unidirectional driving, the clearance and precision requirements after the assembly of these spare and accessory parts are all very high, and the structural strength requirement to these spare and accessory parts itself also greatly increases, in addition also requires that the assembly worker has higher business level, these circumstances increase a large amount of costs undoubtedly, and the stability, durability and uniformity of the unidirectional driving mechanism after the assembly can not be guaranteed.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides an one-way driving mechanism for a fur machine feeding plate, which aims to solve the technical problems that: how to simplify the structure of the one-way driving mechanism on the premise of not influencing the performance of the one-way driving mechanism so as to reduce the assembly difficulty and the assembly cost of the one-way driving mechanism.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a one-way actuating mechanism for fur machine feed table establishes in fur machine's casing, and this mechanism is including the pay-off axle that is used for linking firmly the pay-off dish, its characterized in that, the pay-off axle overcoat connect a clutch initiative body, the clutch initiative in be provided with at least one-way bearing, one-way bearing's outer lane fixed connection be in clutch initiative internal lateral wall on, one-way bearing's inner circle with the pay-off hub connection, the clutch initiative body drive by fur machine's power unit and realize reciprocating swing.

In the one-way driving mechanism for the fur machine feeding plate, the clutch driving body is internally overlapped with two one-way bearings, inner rings of the two one-way bearings are in contact with the feeding shaft, and the rotating directions of the inner rings of the two one-way bearings are consistent. Through setting up two one-way bearings that superpose from top to bottom, can play axial positioning's effect to the pay-off axle, ensure that the pay-off axle keeps stable at the rotation in-process.

In the one-way driving mechanism for the fur machine feeding plate, the clutch driving body is sleeved at the lower end of the feeding shaft, the end part of the lower end of the feeding shaft is fixedly connected with the clamping piece through a screw, and the clutch driving body is positioned above the clamping piece. The clutch driving body is limited by arranging the clamping piece.

In the one-way driving mechanism for the fur machine feed tray, the upper end of the feed shaft is further sleeved with at least one-way bearing, the inner ring of the one-way bearing positioned at the upper end of the feed shaft is in contact with the feed shaft, the outer ring of the one-way bearing positioned at the upper end of the feed shaft is used for being fixedly connected to the shell of the fur machine, and the rotation directions of the one-way bearing positioned at the upper end of the feed shaft and the inner ring of the one-way bearing positioned in the clutch driving body are consistent. One-way bearing is established through the upper end cover at the pay-off axle for improve the rotational stability of pay-off axle.

In the one-way driving mechanism for the fur machine feed plate, the one-way bearing is a one-way needle bearing.

In foretell one-way actuating mechanism for fur machine feed table, power unit drive shaft, first transfer line and second transfer line, the one end of first transfer line pass through the eccentric wheel and rotate the connection and be in the drive shaft on, the other end of first transfer line with the one end of second transfer line connect, the other end of second transfer line with clutch initiative body coupling. The driving shaft rotates to enable the eccentric wheel to rotate to drive the first transmission rod to swing, the first transmission rod swings to pull the second transmission rod to swing, the second transmission rod pulls the clutch driving body to swing back and forth around the axis line of the feeding shaft, and the feeding shaft rotates in a single direction under the action of the one-way bearing.

Compared with the prior art, the utility model has the advantages of it is following: 1. the structure is simpler, and the number of parts is reduced; 2. the one-way bearing is reliable in stability and wear resistant; 3. the power transmission is more stable and reliable, and the loss is low.

Drawings

Fig. 1 is a schematic structural view of a one-way driving mechanism for a fur machine feed plate of the utility model.

In the figure, 1, a feeding shaft; 2. a feed tray; 3. a clutch driving body; 4. a one-way bearing; 4a, an outer ring; 4b, an inner ring; 5. a power mechanism; 5a, a drive shaft; 5b, a first transmission rod; 5c, a second transmission rod; 6. a clamping member; 7. a screw; 8. an eccentric wheel.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the one-way driving mechanism for the fur machine feed tray is arranged in a shell of the fur machine, the mechanism comprises a feed shaft 1 for fixedly connecting a feed tray 2, a clutch driving body 3 is sleeved outside the feed shaft 1, two one-way bearings 4 are overlapped in the clutch driving body 3, inner rings 4b of the two one-way bearings 4 are in contact with the feed shaft 1, and the rotating directions of the inner rings 4b of the two one-way bearings 4 are consistent. The outer ring 4a of each one-way bearing 4 is fixedly connected to the inner side wall of the clutch driving body 3, and the clutch driving body 3 is driven by a power mechanism 5 of the fur machine to realize reciprocating swing. Through setting up two one-way bearings 4 of overlapping from top to bottom, can play axial positioning's effect to pay-off axle 1, ensure that pay-off axle 1 keeps stable at the rotation in-process.

The clutch driving body 3 is sleeved at the lower end of the feeding shaft 1, the end part of the lower end of the feeding shaft 1 is fixedly connected with a clamping piece 6 through a screw 7, and the clutch driving body 3 is positioned above the clamping piece 6. The upper end of the feeding shaft 1 is further sleeved with at least one-way bearing 4, an inner ring 4b of the one-way bearing 4 positioned at the upper end of the feeding shaft 1 is in contact with the feeding shaft 1, an outer ring 4a of the one-way bearing 4 positioned at the upper end of the feeding shaft 1 is used for being fixedly connected to a shell of the fur machine, and the rotation directions of the one-way bearing 4 positioned at the upper end of the feeding shaft 1 and the inner ring 4b of the one-way bearing 4 positioned in the clutch driving body 3 are consistent. One-way bearing 4 is sleeved on the upper end of the feeding shaft 1 and is matched with one-way bearing 4 arranged in the clutch driving body 3, so that the rotating stability of the feeding shaft 1 is improved. It should be noted that the unidirectional bearings 4 in the present application are all unidirectional needle roller bearings, and the number of the unidirectional bearings 4 is not limited to the number exemplified in the present embodiment, and the number and the arrangement position may be adjusted appropriately according to actual needs.

The clutch driving mechanism comprises a driving shaft 5a of the power mechanism 5, a first transmission rod 5b and a second transmission rod 5c, wherein one end of the first transmission rod 5b is rotatably connected to the driving shaft 5a through an eccentric wheel 8, the other end of the first transmission rod 5b is connected with one end of the second transmission rod 5c, and the other end of the second transmission rod 5c is connected with the clutch driving body 3.

The principle of the utility model is as follows: after the fur machine is started, the driving shaft 5a rotates under the drive of manpower or a motor and the like, so that the eccentric wheel 8 eccentrically rotates, the first transmission rod 5b carries things on the eccentric wheel 8 to realize reciprocating swing, the lower end of the first transmission rod 5b drives the second transmission rod 5c to transversely swing, the other end of the second transmission rod 5c pulls the clutch driving body 3 to reciprocally rotate around the axial lead of the feeding shaft 1, and due to the action of the one-way bearing 4, the feeding shaft 1 realizes intermittent one-way rotation under the action of the inner ring 4b of the one-way bearing 4, so that the one-way rotation of the feeding disc 2 is realized. The one-way driving mechanism of this embodiment's structure is simple relatively, converts into unidirectional rotation by the swing and only can realize reliable and stable power transmission through the cooperation of one or more one-way bearing 4, and the accessories of whole mechanism are less relatively, compares with prior art and has simplified the structure complexity, has reduced the assembly degree of difficulty by a wide margin, and can not influence power transmission stability and reliability.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a one-way actuating mechanism for fur machine feed table establishes in fur machine's casing, and this mechanism is including being used for linking firmly feed table (2) pay-off axle (1), its characterized in that, pay-off axle (1) outer cup joint have a clutch initiative body (3), clutch initiative body (3) in be provided with at least one way bearing (4), outer lane (4a) fixed connection of one way bearing (4) in clutch initiative body (3) inside wall on, inner circle (4b) of one way bearing (4) with pay-off axle (1) connect, clutch initiative body (3) drive by power unit (5) of fur machine and realize reciprocal swing.

2. The one-way driving mechanism for the fur machine feeding disc is characterized in that two one-way bearings (4) are stacked in the clutch driving body (3), inner rings (4b) of the two one-way bearings (4) are in contact with the feeding shaft (1), and the rotating directions of the inner rings (4b) of the two one-way bearings (4) are consistent.

3. The one-way driving mechanism for the fur machine feeding disc is characterized in that the clutch driving body (3) is sleeved at the lower end of the feeding shaft (1), the end part of the lower end of the feeding shaft (1) is fixedly connected with a clamping piece (6) through a screw (7), and the clutch driving body (3) is positioned above the clamping piece (6).

4. The one-way driving mechanism for the fur machine feeding disc is characterized in that at least one-way bearing (4) is further sleeved at the upper end of the feeding shaft (1), an inner ring (4b) of the one-way bearing (4) positioned at the upper end of the feeding shaft (1) is in contact with the feeding shaft (1), an outer ring (4a) of the one-way bearing (4) positioned at the upper end of the feeding shaft (1) is fixedly connected to a shell of the fur machine, and the rotation directions of the one-way bearing (4) positioned at the upper end of the feeding shaft (1) and the inner ring (4b) of the one-way bearing (4) positioned in the clutch driving body (3) are consistent.

5. The one-way driving mechanism for the fur machine feeding disc is characterized in that the one-way bearing (4) is a one-way needle bearing.

6. The one-way driving mechanism for the fur machine feed tray is characterized in that the power mechanism (5) comprises a driving shaft (5a), a first transmission rod (5b) and a second transmission rod (5c), one end of the first transmission rod (5b) is rotatably connected to the driving shaft (5a) through an eccentric wheel (8), the other end of the first transmission rod (5b) is connected with one end of the second transmission rod (5c), and the other end of the second transmission rod (5c) is connected with the clutch driving body (3).