CN219010635U - Crawler-type cloth dragging wheel and sewing equipment - Google Patents

Abstract

The utility model provides a crawler-type cloth dragging wheel and a sewing device, which belong to the technical field of sewing devices and comprise: the fixed bracket is provided with a rotatable driving gear; the driving mechanism is arranged on the fixed bracket, the driving gear is connected with the driving mechanism, and the driving mechanism can drive the driving gear to rotate; one end of the rotating arm is hinged with the fixed bracket and is connected with a rotatable first synchronous wheel, and the other end of the rotating arm is connected with a rotatable second synchronous wheel; the dragging belt is sleeved on the driving gear, the first synchronous wheel and the second synchronous wheel, and the driving gear, the first synchronous wheel and the second synchronous wheel are connected in a linkage way through the dragging belt. The beneficial effects of the utility model are as follows: the crawler-type cloth dragging wheel is provided, the second synchronous wheel can press the cloth through the dragging belt, and when the driving gear rotates, the second synchronous wheel and the dragging belt can move to drag the cloth, so that larger dragging force is provided, and the practical use effect is relatively good.

Description

Crawler-type cloth dragging wheel and sewing equipment

Technical Field

The utility model belongs to the technical field of sewing equipment, and relates to a crawler-type cloth dragging wheel and sewing equipment.

Background

In order to enable the cloth to be moved while being sewn and to ensure the flatness of the cloth during sewing by a sewing machine or an overedger, it is necessary to arrange a cloth dragging wheel to drag the cloth backward during sewing.

At present, a plurality of sewing equipment are provided with a cloth dragging wheel, for example, chinese patent application number 201810726573.0 discloses a cloth dragging wheel device which is contacted with cloth through a driven wheel so as to drag the cloth to move, but the dragging force of the cloth dragging wheel is smaller, and the practical use effect is not ideal.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a crawler-type cloth dragging wheel and sewing equipment.

The aim of the utility model can be achieved by the following technical scheme: a tracked mop wheel comprising:

the fixed bracket is provided with a rotatable driving gear;

the driving mechanism is arranged on the fixed bracket, the driving gear is connected with the driving mechanism, and the driving mechanism can drive the driving gear to rotate;

one end of the rotating arm is hinged with the fixed bracket and is connected with a rotatable first synchronous wheel, and the other end of the rotating arm is connected with a rotatable second synchronous wheel;

the dragging belt is sleeved on the driving gear, the first synchronizing wheel and the second synchronizing wheel, the driving gear, the first synchronizing wheel and the second synchronizing wheel are connected in a linkage mode through the dragging belt, and the second synchronizing wheel can contact and drag cloth through the dragging belt.

Preferably, the driving mechanism comprises a driving motor, a first driving wheel, a second driving wheel and a driving belt, wherein the driving motor is connected with the fixed support, the driving gear is provided with a driving shaft, the first driving wheel is connected with the driving motor, the second driving wheel is connected with the driving shaft through a key, the driving belt is sleeved on the first driving wheel and the second driving wheel, and the first driving wheel and the second driving wheel are connected through the driving belt in a linkage manner.

Preferably, the device further comprises an adjusting motor, an eccentric shaft and an adjusting rod, wherein the adjusting motor is connected with the fixed support, the eccentric shaft is connected with the adjusting motor, one end of the adjusting rod is connected with the eccentric shaft, the other end of the adjusting rod is hinged with the rotating arm to form a crank rocker mechanism, and the motor drives the rotating arm to swing relative to the fixed support through the adjusting rod when driving the eccentric shaft to rotate.

Preferably, the adjusting rod comprises a first rod body and a second rod body, the second rod body is movably connected with the first rod body and forms a telescopic structure, the first rod body is connected with the eccentric shaft, the second rod body is hinged with the rotating arm, a spring is sleeved on the first rod body, one end of the spring is in abutting connection with the second rod body, the other end of the spring is in abutting connection with the first rod body, and therefore one end of the second rod body, hinged with the rotating arm, extends out of the first rod body and enables the rotating arm to form a floating structure.

Preferably, the second rod body is movably inserted into the first rod body, and the second rod body is provided with a limiting end, and the limiting end is in abutting connection with the first rod body when the second rod body extends out.

Preferably, the fixing support is connected with a tensioning wheel, and the tensioning wheel is in abutting connection with the outer peripheral surface of the dragging belt and enables the dragging belt to be tensioned.

Preferably, the peripheral surface of the first rod body is provided with an external thread, a nut is sleeved on the first rod body, the nut is connected with the first rod body through the external thread, the nut can be screwed to enable the nut to move along the axial direction of the first rod body, one end of the spring is in abutting connection with the nut, the other end of the spring is in abutting connection with the second rod body, and the compression amount of the spring can be adjusted by screwing the nut.

Preferably, one end of the rotating arm is provided with a hinge shaft, the rotating arm is hinged with the fixed bracket through the hinge shaft, and the first synchronizing wheel is rotatably connected with the hinge shaft.

Also provides a sewing device provided with the crawler-type cloth dragging wheel.

Preferably, the sewing device is a sewing machine or an overedger.

Compared with the prior art, the utility model has the beneficial effects that:

1. the crawler-type cloth dragging wheel is provided, the second synchronous wheel can press the cloth through the dragging belt, and when the driving gear rotates, the second synchronous wheel and the dragging belt can move to drag the cloth, so that larger dragging force is provided, and the practical use effect is relatively good.

2. The first driving wheel and the second driving wheel are connected in a linkage way through a driving belt, so that the driving motor can drive the second driving wheel to rotate through the driving belt when driving the first driving wheel to rotate, and the driving gear is driven to rotate through the driving shaft when driving the second driving wheel to rotate, thereby providing power for the dragging belt.

3. The adjusting motor can lift or put down the rotating arm through the eccentric shaft and the adjusting rod, namely, the second synchronizing wheel is lifted up to release the cloth or is pressed down so as to press the cloth, and the pressing force of the second synchronizing wheel for pressing the cloth can be adjusted.

Drawings

Fig. 1 is a schematic view of a connection structure of a crawler-type mop wheel of the present utility model.

Fig. 2 is a schematic view of a tracked mop wheel of the present utility model.

Fig. 3 is a front view of the tracked mop wheel of the present utility model.

Fig. 4 is a schematic structural view of the driving mechanism of the present utility model.

Fig. 5 is a schematic diagram of the connection relationship of the adjusting motor, the eccentric shaft and the adjusting rod according to the present utility model.

Fig. 6 is an exploded view of the structure of the eccentric shaft and the adjusting lever of the present utility model.

100, fixing a bracket; 110. a drive gear; 120. a drive shaft; 130. a tensioning wheel; 200. a driving mechanism; 210. a driving motor; 220. a first driving wheel; 230. a second driving wheel; 240. a transmission belt; 300. a rotating arm; 310. a hinge shaft; 400. a first synchronizing wheel; 500. a second synchronizing wheel; 600. dragging the belt; 700. adjusting a motor; 800. an eccentric shaft; 900. an adjusting rod; 910. a first rod body; 920. a second rod body; 921. a limiting end head; 930. a spring; 940. and (3) a nut.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-6, a tracked mop wheel comprising: a fixed bracket 100, a driving mechanism 200, a rotating arm 300, and a dragging belt 600, the fixed bracket 100 being mounted with a rotatable driving gear 110; the driving mechanism 200 is mounted on the fixed bracket 100, the driving gear 110 is connected with the driving mechanism 200, and the driving mechanism 200 can drive the driving gear 110 to rotate; one end of the rotating arm 300 is hinged with the fixed bracket 100 and is connected with a rotatable first synchronous wheel 400, and the other end of the rotating arm 300 is connected with a rotatable second synchronous wheel 500; the dragging belt 600 is sleeved on the driving gear 110, the first synchronizing wheel 400 and the second synchronizing wheel 500, the driving gear 110, the first synchronizing wheel 400 and the second synchronizing wheel 500 are connected in a linkage manner through the dragging belt 600, and the second synchronizing wheel 500 can contact and drag cloth through the dragging belt 600.

The fixing bracket 100 is used for being connected with a main body or a table top of the sewing machine, the driving mechanism 200 can provide torque for the driving gear 110, the rotating arm 300 is hinged at the lower end of the fixing bracket 100, the rotating arm 300 is supported by the adjusting rod 900 in a practical structure to limit the rotating arm 300 to rotate (namely, the rotating arm 300, the fixing bracket 100 and the adjusting rod 900 are connected into a triangle structure, so that the rotating arm 300 is also not moved when the adjusting rod 900 is not moved, and the second synchronizing wheel 500 is kept in a downward pressing state), the driving gear 110 is arranged at the upper end of the fixing bracket 100, the first synchronizing wheel 400 and the second synchronizing wheel 500 are arranged at two ends of the rotating arm 300, the horizontal height position of the second synchronizing wheel 500 is lower than that of the first synchronizing wheel 400, the second synchronizing wheel 500 and the dragging belt 600 are connected in a linkage mode, and thus a crawler structure is formed, and when the driving gear 110 rotates, the dragging belt 600 moves and the second synchronizing wheel 500 rotates, and the second synchronizing wheel 500 drags the cloth 600.

When the crawler-type cloth dragging wheel works, the second synchronizing wheel 500 presses a part of the dragging belt 600 on cloth, the driving mechanism 200 drives the driving gear 110 to rotate, so that the dragging belt 600 moves and drives the first synchronizing wheel 400 and the second synchronizing wheel 500 to rotate, and the rotation speed of the driving gear 110 can be automatically adjusted according to the sewing speed of the sewing equipment, so that the mop speed of the dragging belt 600 changes along with the change of the sewing speed.

The crawler-type cloth dragging wheel is provided, the second synchronizing wheel 500 can press cloth through the dragging belt 600, and when the driving gear 110 rotates, the second synchronizing wheel 500 and the dragging belt 600 can move to drag the cloth, so that a large dragging force is provided, and the practical use effect is good.

As shown in fig. 1-4, the driving mechanism 200 includes a driving motor 210, a first driving wheel 220, a second driving wheel 230, and a driving belt 240, wherein the driving motor 210 is connected with the fixed bracket 100, the driving gear 110 is provided with a driving shaft 120, the first driving wheel 220 is connected with the driving motor 210, the second driving wheel 230 is connected with the driving shaft 120 in a key manner, the driving belt 240 is sleeved on the first driving wheel 220 and the second driving wheel 230, and the first driving wheel 220 and the second driving wheel 230 are connected in a linkage manner through the driving belt 240.

The first driving wheel 220 is connected with the second driving wheel 230 in a linkage way through a driving belt 240, so that the driving motor 210 can drive the second driving wheel 230 to rotate through the driving belt 240 when driving the first driving wheel 220 to rotate, and the driving gear 110 is driven to rotate through the driving shaft 120 when driving the second driving wheel 230 to rotate, thereby providing power for the dragging belt 600. It should be noted that the rotational speed of the drive motor 210 is positively correlated with the operating speed of the sewing device, so that the speed of the swab matches the sewing speed.

As shown in fig. 1, 2, 3, 5 and 6, the crawler-type mop wheel further comprises an adjusting motor 700, an eccentric shaft 800 and an adjusting rod 900, wherein the adjusting motor 700 is connected with the fixed bracket 100, the eccentric shaft 800 is connected with the adjusting motor 700, one end of the adjusting rod 900 is connected with the eccentric shaft 800, the other end of the adjusting rod 900 is hinged with the rotating arm 300 so as to form a crank rocker mechanism, and the rotating arm 300 is driven to swing relative to the fixed bracket 100 through the adjusting rod 900 when the motor drives the eccentric shaft 800 to rotate.

Since the rotating arm 300 is hinged with the fixed bracket 100, the rotating arm 300 needs to be supported by the adjusting lever 900, and the rotating arm 300, the fixed bracket 100 and the adjusting lever 900 are connected into a triangle structure, so that the rotating arm 300 is not moved when the adjusting lever 900 is not moved; at the time of adjustment, the adjustment motor 700 can raise or lower the rotating arm 300 through the eccentric shaft 800 and the adjustment lever 900, i.e., let the second synchronizing wheel 500 rise to release the cloth or let the second synchronizing wheel 500 press down to press the cloth, and also can adjust the pressing force of the second synchronizing wheel 500 to press the cloth.

It should be noted that, when the eccentric shaft 800, the adjusting lever 900 and the rotating arm 300 form a crank rocker mechanism, during adjustment, the adjusting motor 700 drives the eccentric shaft 800 to rotate, the eccentric shaft 800 pulls the adjusting lever 900, the adjusting lever 900 pulls the rotating arm 300 to rotate relative to the fixed bracket 100, so as to lift or put down the second synchronizing wheel 500, and the adjusting motor 700 can also drive the eccentric shaft 800 to rotate to a corresponding angle so as to apply a corresponding pressing force to the second synchronizing wheel 500 (the rotating arm 300), so as to play a role in adjusting the pressing force.

In an actual structure, a sensor for controlling the start and stop of the adjusting motor 700 is further provided, when the eccentric shaft 800 rotates to a set angle, the adjusting lever 900 pulls the second synchronizing wheel 500 on the rotating arm 300 to lift, and at this time, the sensor detects that the eccentric shaft 800 is located at the set angle (position), thereby controlling the adjusting motor 700 to stop, and keeping the second synchronizing wheel 500 on the rotating arm 300 in a lifted state.

The adjusting rod 900 includes a first rod body 910 and a second rod body 920, the second rod body 920 is movably connected with the first rod body 910 and forms a telescopic structure, the first rod body 910 is connected with the eccentric shaft 800, the second rod body 920 is hinged with the rotating arm 300, a spring 930 is sleeved on the first rod body 910, one end of the spring 930 is in abutting connection with the second rod body 920, and the other end of the spring 930 is in abutting connection with the first rod body 910, so that one end of the second rod body 920 hinged with the rotating arm 300 extends out from the first rod body 910 and the rotating arm 300 forms a floating structure.

The first rod body 910 and the second rod body 920 form a telescopic structure, the rotating arm 300 is connected with the second rod body 920, the second synchronous wheel 500 on the rotating arm 300 can float to a certain extent, wherein the spring 930 pushes one hinged end of the second rod body 920 and the rotating arm 300 to extend, so that the rotating arm 300 forms a floating structure, a buffering effect is realized through the floating of the rotating arm 300, and when the second synchronous wheel 500 floats upwards, the second rod body 920 retracts into the first rod body 910 against the elastic force of the spring 930; the spring 930 may push the second lever 920 to protrude from the first lever 910, so that the second synchronizing wheel 500 floats downward, and the second synchronizing wheel 500 has a buffering effect while pressing the cloth.

Preferably, the second rod 920 is movably inserted into the first rod 910, and the second rod 920 is provided with a limiting end 921, where the limiting end 921 is in abutting connection with the first rod 910 when the second rod 920 is extended.

In a practical structure, the spring 930 can push the second rod 920 to stretch out, so that the adjusting rod 900 keeps an extended state under the influence of the elastic force, at this time, the limiting end 921 is in abutting connection with the first rod 910, and the eccentric shaft 800 can pull the first rod 910 and the second rod 920 to move.

In an actual structure, an end of the second rod 920 hinged to the rotating arm 300 is provided with a hinge block, the second rod 920 is connected to the rotating arm 300 through the hinge block, and the second rod 920 is in threaded connection with the hinge block, so that an axial position of the hinge block on the second rod 920 can be adjusted.

The circumference of the first rod 910 is provided with an external thread (not shown in the figure), and the first rod 910 is sleeved with a nut 940, the nut 940 is connected with the first rod 910 through the external thread, and screwing the nut 940 can make the nut 940 move along the axial direction of the first rod 910, one end of the spring 930 is in abutting connection with the nut 940, the other end is in abutting connection with the second rod 920, and screwing the nut 940 can adjust the compression amount of the spring 930. The nut 940 is actually a spring seat of the spring 930, and the nut 940 can be adjusted in position in the axial direction of the first rod 910, thereby adjusting the tightness of the spring 930.

As shown in fig. 1 to 6, the fixing bracket 100 is connected with a tensioning wheel 130, and the tensioning wheel 130 is in abutting connection with the outer circumferential surface of the dragging belt 600 and tightens the dragging belt 600. In an actual structure, the dragging belt 600 is sleeved on the driving gear 110, the first synchronizing wheel 400 and the second synchronizing wheel 500, and is tensioned by the tensioning wheel 130, the inner circumferential surface of the dragging belt 600 is a tooth surface, and the first synchronizing wheel 400 and the second synchronizing wheel 500 are in a gear structure, so that the dragging belt 600 can be meshed with the driving gear 110, the first synchronizing wheel 400 and the second synchronizing wheel 500 for transmission.

The rotating arm 300 is disposed at an incline, and the horizontal height position of the first synchronizing wheel 400 is higher than the horizontal height position of the second synchronizing wheel 500. The portion of the drag belt 600 located at the bottom of the second synchronizing wheel 500 can be pressed against the table surface of the sewing apparatus, thereby pressing the cloth and applying a rearward drag force to the cloth; the portion of the dragging belt 600 located between the first synchronizing wheel 400 and the second synchronizing wheel 500 is inclined, so that a gap exists between the inclined structure of the portion of the dragging belt 600 and the table top of the sewing device, and the size of the gap is larger further backward, so that the backward movement of cloth can be prevented.

One end of the rotating arm 300 is provided with a hinge shaft 310, the rotating arm 300 is hinged to the fixed bracket 100 through the hinge shaft 310, and the first synchronizing wheel 400 is rotatably connected to the hinge shaft 310. The hinge shaft 310 enables the rotating arm 300 to be hinged with the fixed bracket 100, and also serves to mount the first synchronizing wheel 400.

As shown in fig. 1-6, there is also provided a sewing machine having the tracked cloth wheels mounted thereon. The fixing bracket 100 of the crawler-type cloth dragging wheel is connected with the main body of the sewing device, and the part of the dragging belt 600 positioned at the bottom of the second synchronizing wheel 500 is contacted with the table top of the sewing device.

Preferably, the sewing device is a sewing machine or an overedger.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims (10)

1. A track-type mop wheel, comprising:

a fixed bracket (100), the fixed bracket (100) is provided with a rotatable driving gear (110);

the driving mechanism (200) is arranged on the fixed bracket (100), the driving gear (110) is connected with the driving mechanism (200), and the driving mechanism (200) can drive the driving gear (110) to rotate;

a rotating arm (300), wherein one end of the rotating arm (300) is hinged with the fixed bracket (100) and is connected with a rotatable first synchronous wheel (400), and the other end of the rotating arm (300) is connected with a rotatable second synchronous wheel (500);

dragging belt (600), dragging belt (600) cover is located driving gear (110) first synchronizing wheel (400) and on second synchronizing wheel (500), driving gear (110) first synchronizing wheel (400) and second synchronizing wheel (500) are passed through dragging belt (600) linkage is connected, and second synchronizing wheel (500) accessible dragging belt (600) contact and drag the cloth.

2. A tracked mop wheel in accordance with claim 1 wherein: the driving mechanism (200) comprises a driving motor (210), a first driving wheel (220), a second driving wheel (230) and a driving belt (240), wherein the driving motor (210) is connected with the fixed support (100), the driving gear (110) is provided with a driving shaft (120), the first driving wheel (220) is connected with the driving motor (210), the second driving wheel (230) is connected with the driving shaft (120) in a key way, the driving belt (240) is sleeved on the first driving wheel (220) and the second driving wheel (230), and the first driving wheel (220) and the second driving wheel (230) are connected in a linkage way through the driving belt (240).

3. A tracked mop wheel in accordance with claim 1 wherein: still include accommodate motor (700), eccentric shaft (800) and adjust pole (900), accommodate motor (700) with fixed bolster (100) are connected, eccentric shaft (800) with accommodate motor (700) are connected, adjust pole (900) one end with eccentric shaft (800) are connected and the other end with thereby rotate arm (300) articulated formation crank rocker mechanism, the motor drive eccentric shaft (800) are rotated the time pass through adjust pole (900) drive rotate arm (300) for fixed bolster (100) swing.

4. A tracked mop wheel according to claim 3, wherein: the adjusting rod (900) comprises a first rod body (910) and a second rod body (920), the second rod body (920) is movably connected with the first rod body (910) and forms a telescopic structure, the first rod body (910) is connected with the eccentric shaft (800), the second rod body (920) is hinged with the rotating arm (300), a spring (930) is sleeved on the first rod body (910), one end of the spring (930) is in abutting connection with the second rod body (920) and the other end of the spring is in abutting connection with the first rod body (910), so that one end of the second rod body (920) hinged with the rotating arm (300) extends out of the first rod body (910) and the rotating arm (300) forms a floating structure.

5. A tracked mop wheel in accordance with claim 4 wherein: the second rod body (920) is movably inserted into the first rod body (910), and the second rod body (920) is provided with a limiting end (921), and when the second rod body (920) stretches out, the limiting end (921) is in abutting connection with the first rod body (910).

6. A tracked mop wheel in accordance with claim 1 wherein: the fixing support (100) is connected with a tensioning wheel (130), and the tensioning wheel (130) is in abutting connection with the outer peripheral surface of the dragging belt (600) and enables the dragging belt (600) to be tensioned.

7. A tracked mop wheel in accordance with claim 4 wherein: the periphery of first body of rod (910) is provided with the external screw thread, and the cover is equipped with nut (940) on first body of rod (910), nut (940) pass through the external screw thread with first body of rod (910) are connected, and twist nut (940) can make nut (940) follow the axial displacement of first body of rod (910), one end of spring (930) with nut (940) conflict is connected and the other end with second body of rod (920) conflict is connected, twist nut (940) can adjust the compression of spring (930).

8. A tracked mop wheel in accordance with claim 1 wherein: one end of the rotating arm (300) is provided with a hinge shaft (310), the rotating arm (300) is hinged with the fixed bracket (100) through the hinge shaft (310), and the first synchronizing wheel (400) is rotatably connected with the hinge shaft (310).

9. A sewing machine, characterized in that a crawler-type cloth dragging wheel as claimed in any one of claims 1 to 8 is installed.

10. A sewing apparatus as recited in claim 9, wherein: the sewing equipment is a sewing machine or an overedger.

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