Machine head overturning structure of sewing machine

Abstract

The utility model discloses a sewing machine head overturning structure which comprises a sewing machine body, a machine head plate is arranged in the center of the front side of the sewing machine body, a rotating base is fixedly connected to the center of the top of the machine head plate, a connecting base is arranged at the top of the rotating base, and an annular plate is fixedly connected to the position, close to the outer end, of the bottom of the connecting base. And a plurality of arc-shaped grooves are formed in the bottom of the annular plate. According to the machine head overturning structure of the sewing machine, the rotating seat is rotationally connected with the connecting seat, so that the machine head is conveniently overturned, an operator does not need to disassemble and reassemble fasteners such as bolts and nuts, the machine head can be overturned only through the rotating action, the operation steps are greatly simplified, the working efficiency is improved, and meanwhile, the labor intensity of the operator is reduced. And by designing a clamping structure of a movable plate, an arc-shaped rod and an arc-shaped groove in the bottom of an annular plate and a clamping structure of a limiting block and a limiting groove, the stability and safety of the machine head in the overturning process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine technical field, concretely is a sewing machine head turnover structure. BACKGROUND

[0002] In the sewing machine technical field, the traditional sewing machine design often neglects the important demand of head flexibility and convenient operability, especially when dealing with complex sewing tasks or frequently changing sewing parts, the turnover operation of the head becomes a technical problem to be solved.

[0003] The head of the traditional sewing machine is often fixed on the machine body by bolts, nuts and other fasteners. When turning over the head to maintain, replace parts or adjust the sewing direction, the operator needs to use tools to disassemble and reassemble. This process is not only tedious and time-consuming, but also physically demanding, especially for users who need to frequently turn over the head, which increases unnecessary work burden. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sewing machine head turnover structure to solve the problem that the head of the traditional sewing machine is often fixed on the machine body by bolts, nuts and other fasteners, and the operator needs to use tools to disassemble and reassemble when turning over the head to maintain, replace parts or adjust the sewing direction. This process is not only tedious and time-consuming, but also physically demanding, especially for users who need to frequently turn over the head, which increases unnecessary work burden.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a sewing machine head turnover structure, comprising a sewing machine body, a head plate is arranged at the center of the front side of the sewing machine body, a rotating seat is fixedly connected at the center of the top of the head plate, a connecting seat is arranged at the top of the rotating seat, an annular plate is fixedly connected at the outer end position of the bottom of the connecting seat, a plurality of arc-shaped grooves are formed in the bottom of the annular plate, a movable groove one is formed at the inner bottom of the rotating seat at the both side positions, a movable groove two is formed between the two movable grooves one, a movable plate is arranged at the top in the movable groove two, the movable plate is slidably connected to the inside of the two movable grooves two through the both sides, arc-shaped rods are fixedly connected at the both sides of the top of the movable plate, the top of the arc-shaped rod is connected to the inside of the arc-shaped groove through the arc-shaped groove, and a fixed groove is formed in the center of the front surface and the center of the rear surface of the rotating seat.

[0006] Compared with the prior art, the utility model has the advantages of:

[0007] The sewing machine head overturning structure, through the design of the rotating connection between the rotating seat and the connecting seat, realizes the convenient overturning of the head, and the operator does not need to use fasteners such as bolts and nuts for disassembly and reassembly, and can only complete the overturning of the head through a rotating action, greatly simplifying the operation steps and improving the work efficiency, meanwhile, through the design of the clamping structure of the movable plate, the arc-shaped rod and the arc-shaped groove at the bottom of the ring-shaped plate, and the clamping structure of the limiting block and the limiting groove, the stability and safety of the head in the overturning process are ensured, the head is prevented from falling off or being damaged due to improper operation, the work efficiency is further improved, through the design of the sliding connection structure of the movable plate, the arc-shaped rod and the supporting rod and the reset spring one, and the sliding connection structure of the movable plate and the limiting rod and the reset spring two, the head can be automatically positioned and locked in the overturning process, without the operator continuously exerting external force, so that the physical consumption is reduced, through the design of the clamping structure of the external seat, the movable sleeve rod and the fixed buckle, the operator can easily realize the fixation and unlocking of the head by pulling or pushing the movable sleeve rod, the operation difficulty and physical consumption are further reduced, and the operation experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a structural schematic view of the utility model;

[0009] Figure 2 It is a structural schematic view of the utility model Figure 1 It is a partial enlarged schematic view of A in the utility model;

[0010] Figure 3 It is a partial enlarged schematic view of B in the utility model Figure 1 It is a partial enlarged schematic view of B in the utility model;

[0011] Figure 4 It is a structural front view of the connecting seat of the utility model;

[0012] Figure 5 It is a structural schematic view of the movable sleeve rod of the utility model;

[0013] Figure 6 It is a structural perspective view of the external seat of the utility model.

[0014] In the drawing: 1, sewing machine main body; 2, head plate; 3, connecting seat; 4, lifting plate; 5, sleeve plate; 6, fixed rod; 7, limiting groove; 8, limiting block; 9, rotating seat; 10, rotating groove; 11, ring-shaped plate; 12, arc-shaped groove; 13, movable groove one; 14, movable groove two; 15, movable groove three; 16, movable plate; 17, arc-shaped rod; 18, supporting groove; 19, supporting rod; 20, reset spring one; 21, sliding block; 22, limiting rod; 23, fixed groove; 24, external seat; 25, movable sleeve rod; 26, fixed buckle; 27, reset spring two. DETAILED DESCRIPTION

[0015] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0016] Please refer to Figures 1-6 The utility model provides a technical scheme: a sewing machine head turnover structure, including sewing machine main part 1, the center of sewing machine main part 1 front side is provided with head plate 2, the top of head plate 2 center is fixedly connected with rotary seat 9, the top of rotary seat 9 is provided with connecting seat 3, the outer end position of connecting seat 3 bottom is fixedly connected with annular plate 11, the bottom of annular plate 11 is provided with a plurality of arc grooves 12, the both sides position of rotary seat 9 inner bottom is all provided with movable slot one 13, and movable slot two 14 is set up between two movable slot one 13, and the top of movable slot two 14 is provided with movable plate 16, and the both sides of movable plate 16 are respectively penetrated to the inside of two movable slot two 14 and are slidably connected with movable slot two 14, and the both sides of movable plate 16 top are all fixedly connected with arc rod 17, and the top of arc rod 17 is penetrated to the inside of arc groove 12 and is connected with arc groove 12, and the center of rotary seat 9 front surface and the center of rear surface are all provided with fixed slot 23.

[0017] The rear side of connecting seat 3 is fixedly connected with lifting plate 4, the rear side of lifting plate 4 is fixedly connected with sleeve plate 5, the top position of the center of sewing machine main part 1 front side is fixedly connected with fixed rod 6, sleeve plate 5 is set with fixed rod 6, and the front surface of sewing machine main part 1 is provided with limiting slot 7 corresponding to the both sides of lifting plate 4, and the both sides of lifting plate 4 are all fixedly connected with limiting block 8, and the rear side of limiting block 8 is penetrated to the inside of limiting slot 7 and is connected with limiting slot 7.

[0018] The center of connecting seat 3 front side is provided with rotary groove 10, and the rear side of rotary seat 9 is penetrated to the inside of rotary groove 10 and is rotatably connected with rotary groove 10.

[0019] The side opposite to two movable slot one 13 is all provided with movable slot three 15, and the both sides of movable plate 16 are all fixedly connected with sliding block 21, and the side away from movable plate 16 of sliding block 21 is penetrated to the inside of movable slot three 15 and is slidably connected with movable slot three 15.

[0020] The center of the bottom of the arc-shaped rod 17 is provided with a supporting groove 18, and the center of the bottom of the movable groove 1 is fixedly connected with a supporting rod 19. The top of the supporting rod 19 penetrates into the inside of the supporting groove 18 and is in sliding connection with the supporting groove 18. The outside of the supporting rod 19 is sleeved with a reset spring 1, and the top and bottom of the reset spring 1 are fixedly connected with the bottom of the movable plate 16 and the bottom of the movable groove 1 respectively.

[0021] The inside of the movable groove 2 is fixedly connected with a limiting rod 22, and the limiting rod 22 is sleeved with and in sliding connection with the movable plate 16. The bottom of the movable plate 16 is fixedly connected with a reset spring 2 corresponding to the inside of the movable groove 2, and the bottom of the reset spring 2 is fixedly connected with the bottom of the movable groove 2.

[0022] The front side of the lifting plate 4 is fixedly connected with an external seat 24, the center of the external seat 24 is sleeved with and in movable connection with a movable sleeve rod 25, the front end of the rear side of the movable sleeve rod 25 is fixedly connected with a fixed buckle 26, and the rear side of the fixed buckle 26 penetrates into the inside of the fixed groove 23 and is in clamping connection with the fixed groove 23.

[0023] Working principle: when the user starts the overturning operation, first lift the head plate 2 upward, because the head plate 2 is fixedly connected with the rotating seat 9, this action will simultaneously drive the rotating seat 9, the connecting seat 3 and the lifting plate 4 to move upward as a whole, then the user continues to exert force, so that the head (i.e. the head plate 2 and all components thereon) is overturned around the connecting point of the rotating seat 9 and the rotating groove 10, at this time, the rotating seat 9 rotates in the rotating groove 10, realizing the overturning action of the head, in the overturning process, the movable plate 16 and the arc-shaped rod 17 thereon move with the rotation of the head, the arc-shaped rod 17 slides in the arc-shaped groove 12, ensuring that the overturning process is stable and has a certain guiding effect, at the same time, the movable plate 16 slides in the movable groove 3 through the sliding block 21, and keeps stable and reset ability in the movable groove 1 through the supporting rod 19 and the reset spring 1, the reset spring 1 and the reset spring 2 play a role in buffering and resetting in the whole overturning process, when the head is overturned to the target position, these springs help the components to recover to a relatively stable position, ensuring the stability and durability of the structure, after the overturning is completed, the user needs to fix the head at the new position, at this time, through the movable sleeve rod 25 on the external seat 24, the front end of the rear side of the fixed buckle 26 is aligned with the fixed groove 23 on the front surface or the rear surface of the rotating seat 9, and the movable sleeve rod 25 is pushed, so that the fixed buckle 26 is clamped into the fixed groove 23, thereby locking the head at the new overturning position.

[0024] In summary: the sewing machine head overturning structure, through the design of the rotary connection between the rotary seat 9 and the connecting seat 3, realizes the convenient overturning of the machine head, and the operator does not need to use fasteners such as bolts and nuts for disassembly and reassembly, and only needs to complete the overturning of the machine head through the rotating action, greatly simplifying the operation steps and improving the work efficiency, and at the same time, through the design of the clamping structure of the movable plate 16, the arc-shaped rod 17 and the arc-shaped groove 12 at the bottom of the annular plate 11, and the clamping structure of the limiting block 8 and the limiting groove 7, the stability and safety of the machine head during overturning are ensured, the machine head is prevented from falling off or being damaged due to improper operation, the work efficiency is further improved, through the sliding connection structure of the movable plate 16, the arc-shaped rod 17 and the supporting rod 19, the reset spring 20, and the sliding connection structure of the movable plate 16 and the limiting rod 22, the reset spring 27, the machine head can be automatically positioned and locked during overturning, without the operator continuously exerting external force, thereby reducing physical consumption, through the clamping structure of the external seat 24, the movable sleeve rod 25 and the fixed buckle 26, the operator can easily realize the fixation and unlocking of the machine head by pulling or pushing the movable sleeve rod 25, further reducing the operation difficulty and physical consumption, and improving the operation experience.

[0025] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] The electrical components in this document are all connected with the main controller and 220V mains electricity, and the main controller can be a conventional known device such as a computer.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sewing machine head flipping structure, comprising a sewing machine body (1), characterized in that: A head plate (2) is provided at the center of the front side of the sewing machine body (1). A rotating seat (9) is fixedly connected to the center of the top of the head plate (2). A connecting seat (3) is provided at the top of the rotating seat (9). An annular plate (11) is fixedly connected to the outer end of the bottom of the connecting seat (3). Several arc-shaped grooves (12) are provided at the bottom of the annular plate (11). Movable grooves (13) are provided on both sides of the bottom of the rotating seat (9). A movable groove is provided between two movable grooves (13). The second (14) has a movable plate (16) at the top of the movable slot (14). The two sides of the movable plate (16) pass through the interior of the two movable slots (14) and are slidably connected to the movable slots (14). The two sides of the top of the movable plate (16) are fixedly connected to the arc rod (17). The top of the arc rod (17) passes through the interior of the arc groove (12) and is engaged with the arc groove (12). The center of the front surface and the center of the rear surface of the rotating seat (9) are both provided with a fixed groove (23).

2. The sewing machine head flipping structure according to claim 1, characterized in that: A lifting plate (4) is fixedly connected to the rear side of the connecting seat (3), and a sleeve plate (5) is fixedly connected to the rear side of the lifting plate (4). A fixing rod (6) is fixedly connected to the top position of the front center of the sewing machine body (1). The sleeve plate (5) is sleeved with the fixing rod (6). Limiting grooves (7) are opened on the front surface of the sewing machine body (1) corresponding to the two sides of the lifting plate (4). Limiting blocks (8) are fixedly connected to both sides of the lifting plate (4). The rear side of the limiting block (8) penetrates into the interior of the limiting groove (7) and engages with the limiting groove (7).

3. The sewing machine head flipping structure according to claim 1, characterized in that: The center of the front side of the connecting seat (3) is provided with a rotating groove (10), and the rear side of the rotating seat (9) extends into the interior of the rotating groove (10) and is rotatably connected to the rotating groove (10).

4. The sewing machine head flipping structure according to claim 1, characterized in that: Two movable slots (13) are provided with movable slots (15) on opposite sides. Slider (21) is fixedly connected to both sides of the movable plate (16). The side of the slider (21) away from the movable plate (16) extends into the interior of the movable slot (15) and is slidably connected to the movable slot (15).

5. The sewing machine head flipping structure according to claim 1, characterized in that: Support grooves (18) are provided on both sides of the movable plate (16) and at the center of the bottom of the arc rod (17). A support rod (19) is fixedly connected to the center of the bottom of the first movable groove (13). The top of the support rod (19) extends into the interior of the support groove (18) and is slidably connected to the support groove (18). A return spring (20) is sleeved on the outside of the support rod (19). The top and bottom of the return spring (20) are fixedly connected to the bottom of the movable plate (16) and the bottom of the first movable groove (13), respectively.

6. The sewing machine head flipping structure according to claim 1, characterized in that: The inner part of the movable groove 2 (14) is fixedly connected to a limiting rod (22). The limiting rod (22) is sleeved and slidably connected to the movable plate (16). The bottom of the movable plate (16) is fixedly connected to the inner part of the movable groove 2 (14) with a reset spring 2 (27). The bottom of the reset spring 2 (27) is fixedly connected to the bottom of the movable groove 2 (14).

7. A sewing machine head flipping structure according to claim 2, characterized in that: An external seat (24) is fixedly connected to the front side of the lifting plate (4). A movable sleeve rod (25) is sleeved and movably connected to the center of the external seat (24). A fixing buckle (26) is fixedly connected to the front end of the rear side of the movable sleeve rod (25). The rear side of the fixing buckle (26) extends through the interior of the fixing groove (23) and engages with the fixing groove (23).

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