Step-pitch-adjustable mop wheel mechanism

Abstract

The invention belongs to the technical field of sewing machine accessories, and particularly relates to a step-pitch-adjustable cloth dragging wheel mechanism which comprises a rack, a connecting rod mechanism used for driving a cloth dragging wheel to move is arranged in the rack, a driving mechanism is arranged on one side of the rack and serves as a power source, and the cloth dragging wheel is driven by the connecting rod mechanism to move. An adjusting mechanism is arranged between the driving mechanism and the connecting rod mechanism, the adjusting mechanism can adjust the relative eccentric position of the connecting rod mechanism and is used for adjusting the step pitch of the cloth dragging wheel, an auxiliary adjusting mechanism is arranged on the rack, and the auxiliary adjusting mechanism can be used for controlling the adjusting operation of the adjusting mechanism. Through cooperation of the adjusting mechanism and the auxiliary adjusting mechanism and cooperation of the structures, the cloth dragging wheel can adjust the single cloth dragging stroke according to needs to cope with different products needing to be machined in actual production, and compared with an existing cloth dragging wheel step pitch adjusting device, the cloth dragging wheel step pitch adjusting device is simple in structure, reliable, better in practicability and high in practicability. And the production efficiency of a production enterprise is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewing machine accessories, in particular to a cloth-pulling wheel mechanism with adjustable step distance. Background Art

[0002] Sewing machines are frequently used fabric processing equipment. During the fabric sewing process, especially when sewing larger fabrics, the length of the fabric output by the sewing machine is relatively long, which easily causes fabric accumulation on the sewing machine table, occupies the sewing machine workbench, and affects the operator's operating space; at the same time, during the sewing process, the operator is required to constantly manually feed the fabric output on the sewing machine workbench, which wastes a lot of time and energy.

[0003] For example, the existing Chinese patent with application number CN202223110489.7 discloses a mop wheel mechanism for a sewing machine, including a mounting frame, a drive unit, and a mop wheel. The drive unit is fixed on the mounting frame, and the mounting frame also includes a mop wheel lifting device. A mop wheel lifting rod runs through the mop wheel lifting device, and the mop wheel lifting rod is connected to a lifting bracket with a screw. The main shaft of the drive unit is connected to a lifting rotating rod and a transmission rod. The lifting rotating rod is hinged to a lifting connecting rod. The lifting connecting rod has a long waist hole. The sliding screw is located in the long waist hole and slides back and forth. The transmission rod is connected to a bidirectional joint bearing, and the other end has a transmission sub-rod, which is connected to the rotating shaft of the mop wheel.

[0004] The above-mentioned mop wheel mechanism for the sewing machine drives the mop wheel through a single servo motor to realize unidirectional rotation and lifting and holding control of the material. The structure is simple and easy to operate, and the overall multi-link articulated transmission is adopted, which is not easy to be damaged. However, the mop wheel needs to adjust the single mopping stroke of the mop wheel during actual use in order to cope with different products that need to be processed in actual production. The existing mop wheel needs to manually adjust the length of the connecting rod, which requires the staff to manually adjust the length of the connecting rod to change the step distance of the mop wheel during work to meet the production requirements, which greatly reduces the production efficiency, and thus needs to design a mop wheel mechanism with adjustable step distance. Summary of the invention

[0005] In order to make up for the shortcomings of the existing mop wheel mechanism for sewing machines, the problem that the existing mop wheel needs to manually adjust the length of the connecting rod, which requires the staff to manually adjust the length of the connecting rod to change the step distance of the mop wheel to meet the production requirements during work, which greatly reduces the production efficiency, is proposed. A mop wheel mechanism with adjustable step distance is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the mop wheel mechanism with adjustable step described in the present invention includes a frame, a connecting rod mechanism for driving the mop wheel to move is arranged in the frame, a driving mechanism is arranged on one side of the frame, the driving mechanism is a power source, an adjusting mechanism is arranged between the driving mechanism and the connecting rod mechanism, the adjusting mechanism can adjust the relative eccentric position of the connecting rod mechanism, and is used to adjust the step of the mop wheel, and an auxiliary adjusting mechanism is arranged on the frame, and the auxiliary adjusting mechanism can be used to control the adjustment operation of the adjusting mechanism.

[0007] Preferably, the adjustment mechanism includes a rotating seat, the output end of the driving mechanism is fixedly connected to one side of the rotating seat through a coupling, a mounting groove is provided on one side of the rotating seat, a locking mechanism is installed in the mounting groove, an adjusting piece is movably provided on the locking mechanism through a reset elastic member, an adjusting block is provided on one side of the adjusting piece, a cover plate is installed on one side of the locking mechanism, a movable groove is provided on the cover plate, the adjusting block is movably provided in the movable groove, one end of the connecting rod mechanism is assembled and connected to the mop wheel, and the other end is rotatably assembled at an eccentric position on one side of the cover plate through a bearing.

[0008] Preferably, the locking mechanism is provided with a first locking mechanism and a second locking mechanism, the first locking mechanism is used to limit the counterclockwise rotation direction of the locking mechanism, and the second locking mechanism is used to limit the clockwise rotation direction of the locking mechanism.

[0009] Preferably, the first locking mechanism includes a first spring arranged on the locking mechanism, one end of the first spring is connected to a first locking block, and the side surface of the first locking block abuts against the mounting groove; the second locking mechanism includes a second spring arranged on the locking mechanism, one end of the second spring is connected to a second locking block, and the side surface of the second locking block abuts against the mounting groove.

[0010] Preferably, the auxiliary adjustment mechanism comprises a mounting sleeve, in which an insertion rod is movably provided via a return spring, the bottom end of the insertion rod extends to the inside of the frame, and an operating handle is fixedly provided at the top end of the insertion rod.

[0011] Preferably, a limiting groove is provided on the installation sleeve, a limiting rod is fixedly provided on the insertion rod, and a clamping groove is provided on the top end of the installation sleeve.

[0012] Beneficial effects of the present invention:

[0013] The present invention provides a mop wheel mechanism with adjustable step length. The relative eccentric positions of a connecting rod mechanism and a rotating seat are adjusted through the cooperation of an adjusting mechanism and an auxiliary adjusting mechanism. When one end of the connecting rod mechanism gradually approaches the axial center position of the rotating seat, the step length of the mop wheel gradually decreases. Conversely, when one end of the connecting rod mechanism gradually moves away from the axial center position of the rotating seat, the step length of the mop wheel gradually increases. Through the cooperation between the above structures, the mop wheel can adjust a single mopping stroke as required, so as to cope with products with different processing requirements in actual production. Compared with the existing mop wheel step adjustment device, the present invention has a simple and reliable structure, and greatly improves the production efficiency of the production enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 It is a three-dimensional diagram of the overall structure;

[0016] Figure 2 It is the overall structural plan;

[0017] Figure 3 is a cross-sectional view of the adjustment mechanism;

[0018] Figure 4 It is the exploded structural diagram of the regulating mechanism;

[0019] Figure 5 It is a structural stereogram of the regulating mechanism;

[0020] Figure 6 It is a structural stereogram of the position of the locking mechanism;

[0021] Figure 7 It is a structural stereogram of the auxiliary adjustment mechanism;

[0022] Legend:

[0023] 1. Frame; 2. Connecting rod mechanism; 3. Driving mechanism; 4. Adjusting mechanism; 401. Rotating seat; 4011. Mounting slot; 402. Locking mechanism; 403. Adjusting sheet; 4031. Adjusting block; 404. Cover plate; 4041. Movable slot; 5. Auxiliary adjusting mechanism; 501. Mounting sleeve; 502. Reset spring; 503. Inserting rod; 504. Operating handle; 505. Limiting slot; 506. Limiting rod; 507. Slot; 6. First locking mechanism; 601. First spring; 602. First locking block; 7. Second locking mechanism; 701. Second spring; 702. Second locking block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Specific examples are given below.

[0026] See also Figure 1-Figure 7 The mop wheel mechanism with adjustable step distance described in the present invention comprises a frame 1, a connecting rod mechanism 2 for driving the mop wheel to move is arranged in the frame 1, a driving mechanism 3 is arranged on one side of the frame 1, the driving mechanism 3 is a power source, an adjusting mechanism 4 is arranged between the driving mechanism 3 and the connecting rod mechanism 2, the adjusting mechanism 4 can adjust the relative eccentric position of the connecting rod mechanism 2, and is used to adjust the step distance of the mop wheel, and an auxiliary adjusting mechanism 5 is arranged on the frame 1, and the auxiliary adjusting mechanism 5 can be used to control the adjustment operation of the adjusting mechanism 4;

[0027] The adjusting mechanism 4 comprises a rotating seat 401, the output end of the driving mechanism 3 is fixedly connected to one side of the rotating seat 401 through a coupling, a mounting groove 4011 is provided on one side of the rotating seat 401, a locking mechanism 402 is installed in the mounting groove 4011, an adjusting piece 403 is movably provided on the locking mechanism 402 through a reset elastic member, an adjusting block 4031 is provided on one side of the adjusting piece 403, a cover plate 404 is installed on one side of the locking mechanism 402, a movable groove 4041 is provided on the cover plate 404, and the adjusting block 4031 is movably arranged in the movable groove 4041, one end of the connecting rod mechanism 2 is assembled and connected to the mop wheel, and the other end is rotatably assembled at an eccentric position on one side of the cover plate 404 through a bearing;

[0028] The locking mechanism 402 is provided with a first locking mechanism 6 and a second locking mechanism 7, the first locking mechanism 6 is used to limit the counterclockwise rotation direction of the locking mechanism 402, and the second locking mechanism 7 is used to limit the clockwise rotation direction of the locking mechanism 402, the first locking mechanism 6 includes a first spring 601 provided on the locking mechanism 402, one end of the first spring 601 is connected to a first locking block 602, and the side of the first locking block 602 abuts against the mounting groove 4011, and the second locking mechanism 7 includes a second spring 701 provided on the locking mechanism 402, one end of the second spring 701 is connected to a second locking block 702, and the side of the second locking block 702 abuts against the mounting groove 4011;

[0029] The auxiliary adjustment mechanism 5 includes a mounting sleeve 501, in which a plunger 503 is movably arranged through a return spring 502, the bottom end of the plunger 503 extends to the inside of the frame 1, an operating handle 504 is fixedly arranged on the top of the plunger 503, a limiting groove 505 is arranged on the mounting sleeve 501, a limiting rod 506 is fixedly arranged on the plunger 503, and a slot 507 is arranged on the top of the mounting sleeve 501. When working, when the staff needs to adjust the pitch of the mop wheel, they first need to operate the auxiliary adjustment mechanism 5, the initial position of the limiting rod 506 is in the slot 507, the staff holds the operating handle 504 to lift and pull the limiting rod 506 out of the slot 507, and then rotates the operating handle 50 The limiting rod 506 is inserted into the limiting groove 505, and the insertion rod 503 is pulled to move into the frame 1 under the elastic potential energy of the return spring 502, so that the bottom end of the insertion rod 503 abuts against the circumferential surface of the cover plate 404, and then the driving mechanism 3 is started to rotate the adjustment mechanism 4 as a whole. If the adjustment mechanism 4 rotates clockwise, when the position of the adjustment block 4031 rotates to one side of the insertion rod 503, the insertion rod 503 presses the adjustment block 4031, so that the adjustment piece 403 swings counterclockwise in the opposite direction. At the same time, the adjustment piece 403 presses the first locking block 602, and the first spring 601 is compressed, so that the first locking block 602 no longer abuts against the inner wall of the installation groove 4011, so that the first locking mechanism 6 no longer limits the counterclockwise movement of the locking mechanism 402 The needle rotates, and the rotating seat 401 continues to rotate clockwise. Since one side of the adjusting block 4031 is in contact with the insert rod 503, the locking mechanism 402 no longer rotates in the clockwise direction with the rotating seat 401, and the two are in relative reverse motion. On the contrary, when the driving mechanism 3 drives the adjusting mechanism 4 to rotate counterclockwise, the second locking mechanism 7 no longer restricts the clockwise rotation of the locking mechanism 402. The principle is consistent with the above and is not repeated here. Through the above operation, the cover plate 404 drives the connecting rod mechanism 2 on one side thereof to rotate, so as to adjust the relative eccentric position of the connecting rod mechanism 2 and the rotating seat 401. When one end of the connecting rod mechanism 2 gradually approaches the axial position of the rotating seat 401, the step distance of the mop wheel gradually decreases. On the contrary, when one end of the connecting rod mechanism 2 gradually moves away from the axial position of the rotating seat 401, the step distance of the mop wheel gradually decreases. When the axial position of the rotating seat 401 is reached, the step of the mop wheel gradually increases. When the step adjustment is completed, the staff pulls the operating handle 504 and moves the limit rod 506 into the card slot 507, so that the insertion rod 503 moves up. At the same time, the insertion rod 503 no longer squeezes the adjustment block 4031, and the adjustment block 4031 and the adjustment sheet 403 are reset, so that the adjustment sheet 403 is no longer in contact with the first locking mechanism 6 and the second locking mechanism 7, so that the first locking mechanism 6 and the second locking mechanism 7 again limit the counterclockwise and clockwise rotation angles of the locking mechanism 402, respectively, so that the locking mechanism 402 and the rotating seat 401 rotate synchronously in the same direction, that is, the relative eccentric positions of the connecting rod mechanism 2 and the rotating seat 401 are fixed, and the step adjustment operation is completed;Through the cooperation between the above structures, the mop wheel can adjust the single mop stroke as needed, and can cope with different products that need to be processed in actual production. Compared with the existing mop wheel step adjustment device, the present invention has a simple and reliable structure, which greatly improves the production efficiency of the production enterprise. ;

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A mopping wheel mechanism with adjustable step distance, comprising a frame (1), characterized in that: The frame (1) is provided with a connecting rod mechanism (2) for driving the mopping wheel to move. A driving mechanism (3) is provided on one side of the frame (1). The driving mechanism (3) is a power source. An adjusting mechanism (4) is provided in the frame (1). The adjusting mechanism (4) comprises a rotating seat (401). The rotating seat (401) is transmission-connected to the driving mechanism (3). A cover plate (404) is provided at an eccentric position of the rotating seat (401). One end of the connecting rod mechanism (2) is assembled and connected to the mopping wheel, and the other end is rotationally assembled through a bearing. At an eccentric position on one side of the cover plate (404), a locking mechanism (402) is mounted on the cover plate (404), the locking mechanism (402) comprising a locking assembly, the locking assembly being used to fix the cover plate (404) and the rotating seat (401) together as a whole, an adjusting piece (403) being movably provided on the locking mechanism (402) via a reset elastic member, the adjusting piece (403) being used to release the locking state between the cover plate (404) and the rotating seat (401), thereby changing the eccentric position of the connecting rod mechanism (2) on the rotating seat (401).

2. The mopping wheel mechanism with adjustable step distance according to claim 1, characterized in that: The locking assembly comprises a first locking mechanism (6) and a second locking mechanism (7), wherein the first locking mechanism (6) is used to limit the counterclockwise rotation direction of the locking mechanism (402), and the second locking mechanism (7) is used to limit the clockwise rotation direction of the locking mechanism (402).

3. The mopping wheel mechanism with adjustable step distance according to claim 2, characterized in that: The first locking mechanism (6) comprises a first spring (601) arranged on the locking mechanism (402), one end of the first spring (601) is connected to a first locking block (602), and a side surface of the first locking block (602) abuts against the mounting groove (4011); the second locking mechanism (7) comprises a second spring (701) arranged on the locking mechanism (402), one end of the second spring (701) is connected to a second locking block (702), and a side surface of the second locking block (702) abuts against the mounting groove (4011).

4. The mopping wheel mechanism with adjustable step distance according to claim 2, characterized in that: The frame (1) is provided with an auxiliary adjustment mechanism (5), and the auxiliary adjustment mechanism (5) can be used to control the adjustment piece (403) to unlock the first locking mechanism (6) or the second locking mechanism (7).

5. The mopping wheel mechanism with adjustable step distance according to claim 4, characterized in that: The auxiliary adjustment mechanism (5) comprises a mounting sleeve (501), an insertion rod (503) being movably arranged in the mounting sleeve (501) via a return spring (502), the bottom end of the insertion rod (503) extending into the interior of the frame (1), and an operating handle (504) being fixedly arranged at the top end of the insertion rod (503).

6. The mopping wheel mechanism with adjustable step distance according to claim 5, characterized in that: A limiting groove (505) is provided on the installation sleeve (501), a limiting rod (506) is fixedly provided on the insertion rod (503), and a clamping groove (507) is provided on the top end of the installation sleeve (501).

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