Bag lip folding mechanism

Abstract

This utility model discloses an upward-folding pocket lip pulling mechanism, relating to the field of sewing machines. It includes a mounting base and a flat bucket that is lifted and mounted on the mounting base. A slidingly mounted pulling plate assembly is provided on the lower surface of the flat bucket. Several driving components are provided inside the flat bucket to move the pulling plate assembly in the forward, backward, left, and right directions. The pulling plate assembly includes telescopic members corresponding to the four sides of the flat bucket and several pulling plates mounted on the bottom of the telescopic members. The bottom of each pulling plate has an outward-facing, toothed working edge. This utility model has the advantages of simple structure and convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of sewing machines, specifically to an upward folding and bag-pulling mechanism. Background Technology

[0002] In garment manufacturing, many garments require pocket opening processes. Traditional pocket opening methods include manual pocket opening, mechanical pocket opening, and laser pocket opening. Manual pocket opening is quite complex, requiring seven or eight steps to complete, and its quality is inconsistent and its efficiency is low. There are also automatic mechanical pocket opening machines, which offer high efficiency and stable quality, but have a narrow range of applications and require subsequent steps such as turning the pocket lip and attaching the inner fabric, making mold changes troublesome and very difficult. Laser pocket opening machines typically integrate multiple stations such as laser cutting, folding, and sewing into one machine, achieving automated pocket opening for clothes, trousers, etc. Laser pocket opening machines are equipped with an upper folding and pulling pocket lip mechanism and a lower positioning pocket lip clamping fabric mechanism.

[0003] The existing upward folding bag-pulling mechanism places the driving components for the front and rear pulling plates and the driving components for the left and right pulling plates inside and outside the flat hopper, and the slide rail assembly is not on the same plane, resulting in a complex structure and inconvenient installation. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a simple and easy-to-install upper folding bag lip mechanism.

[0005] The technical solution adopted by this utility model is as follows: an upper folding bag lip mechanism, which includes a mounting base and a flat bucket that is lifted and installed on the mounting base. A slidingly installed pull plate assembly is provided on the lower bottom surface of the flat bucket. A number of drive assemblies that drive the pull plate assembly to move in the front-back and left-right directions are provided inside the flat bucket. The pull plate assembly includes telescopic members corresponding to the four sides of the flat bucket and a number of pull plates installed at the bottom of the telescopic members. The bottom of the pull plate is provided with an outwardly facing and toothed working edge.

[0006] The driving component includes:

[0007] The first screw is rotatably mounted on the bottom surface of the flat bucket and has positive and negative threads at both ends;

[0008] The first driving component is installed on the bottom surface of the flat bucket and its output end is linked to the first screw.

[0009] Several first nut sleeves, which are threadedly engaged with the first screw;

[0010] The second screw is rotatably mounted on the bottom surface of the flat bucket and has positive and negative threads at both ends.

[0011] The second driving component is installed on the bottom surface of the flat bucket and its output end passes through the bottom of the flat bucket and is linked to the second screw.

[0012] Several second nut sleeves, which are threadedly engaged with the second screw;

[0013] The first screw is positioned along the Y-axis; the second screw is positioned along the X-axis.

[0014] The pull plate assembly also includes several first movable seats, the upper end of each first movable seat passing through the bottom of the flat bucket and rotatably connected to the first nut sleeve; several first sliding modules connecting the lower part of the first movable seat and the lower bottom surface of the flat bucket are provided, and the first sliding modules are arranged along the Y-axis direction.

[0015] Two telescopic components are fixedly installed at the lower end of the first movable seat in a one-to-one correspondence. The two telescopic components under the first movable seat are driven to move synchronously towards and away from each other along the Y-axis.

[0016] The pull plate assembly also includes several second movable seats, each of which is rotatably connected to the second nut sleeve; several second sliding modules are provided between the second movable seats and the lower bottom surface of the flat bucket, and the second sliding modules are arranged along the X-axis direction.

[0017] The other two telescopic components are fixedly installed at the lower end of the second movable seat in a corresponding manner. The telescopic components under the two second movable seats are driven to move synchronously towards and away from each other along the X-axis.

[0018] The second movable seat includes a first mounting plate that rotatably engages with the second nut sleeve, a second mounting plate that connects to the second sliding module, and a fisheye connector that connects the first mounting plate and the second mounting plate.

[0019] The mounting base is equipped with a third driving component that drives the flat bucket to move up and down, and a third sliding module is provided between the side wall of the flat bucket and the mounting base.

[0020] The beneficial effects of this utility model are: This technical solution installs the drive assembly inside the flat bucket, and then the pull plate assembly slides along the bottom surface of the flat bucket via a slide rail. In addition, the working edge of the pull plate is toothed, which can be used to alternately press the cloth with the bottom clamping plate of the lower positioning bag lip clamping mechanism. It has the advantages of simple structure and convenient installation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the upper folding and pulling bag lip mechanism in an embodiment of this utility model.

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the upper folding bag lip mechanism.

[0023] Figure 3 for Figure 2A magnified view of a portion of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the pull-out plate assembly. Detailed Implementation

[0025] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0026] As shown in the figure, an upward folding bag lip pulling mechanism is characterized by: it includes a mounting base 1 and a flat bucket 2 that is lifted and installed on the mounting base 1. A sliding pulling plate assembly is provided on the lower bottom surface of the flat bucket 2. The flat bucket 2 is provided with a plurality of driving components that drive the pulling plate assembly to move in the forward, backward, left, and right directions. The pulling plate assembly includes telescopic members 41 corresponding to the four sides of the flat bucket 2 and a plurality of pulling plates 42 installed at the bottom of the telescopic members 41. The bottom of the pulling plate 42 is provided with an outwardly facing, toothed working edge 47. This technical solution installs the driving components inside the flat bucket, and then the pulling plate assembly slides uniformly on the lower bottom surface of the flat bucket via a slide rail. In addition, the working edge of the pulling plate is toothed, which can be used to alternately press the cloth with the bottom clamping plate of the lower positioning bag lip clamping mechanism. It has the advantages of simple structure and convenient installation.

[0027] The telescopic component can be a cylinder, a hydraulic cylinder, or a linear motor.

[0028] The driving component includes:

[0029] The first screw 31 is rotatably mounted on the inner bottom surface of the flat bucket 2 and has positive and negative threads at both ends;

[0030] The first driving component 32 is installed on the inner bottom surface of the flat bucket 2 and its output end is linked to the first screw 31.

[0031] Several first nut sleeves 33 are threadedly engaged with the first screw 31;

[0032] The first screw 31 is arranged along the Y-axis. The first driving component adopts a servo motor and a pulley mechanism. The servo motor drives the first screw to rotate through the pulley mechanism. The first nut sleeve on the first screw can move synchronously in opposite directions through the positive and negative threads.

[0033] The pull plate assembly also includes several first movable seats 43. The upper end of each first movable seat 43 passes through the bottom of the flat bucket 2 and is rotatably connected to the first nut sleeve 33. Several first sliding modules 44 connecting the lower part of the first movable seat 43 and the lower bottom surface of the flat bucket 2 are provided. The first sliding modules 44 are arranged along the Y-axis. After the first movable seat is connected to the first nut sleeve, the two first movable seats will be driven to move towards each other and away along the Y-axis. Moreover, the first movable seat is smoothly slidably installed on the lower bottom surface of the flat bucket through the first sliding modules, which has the advantage of good working stability. The first sliding modules are purchased components.

[0034] Two telescopic components 41 are fixedly installed at the lower end of the first movable seat 43 in a one-to-one correspondence. The telescopic components 41 below the two first movable seats 43 are driven to move synchronously towards and away from each other along the Y-axis.

[0035] The driving component also includes:

[0036] The second screw 34 is rotatably mounted on the bottom surface of the flat bucket 2 and has positive and negative threads at both ends.

[0037] The second driving component 35 is installed on the inner bottom surface of the flat bucket 2 and its output end passes through the bottom of the flat bucket 2 and is linked to the second screw 34.

[0038] Several second nut sleeves 36 are threadedly engaged with the second screw 34;

[0039] The second screw 34 is arranged along the X-axis. The second driving component adopts a servo motor and a pulley mechanism. The servo motor drives the second screw to rotate through the pulley mechanism. In this embodiment, the bottom opening of the flat bucket allows the pulley mechanism to pass through. The second nut sleeve on the second screw can move synchronously in opposite directions through the positive and negative threads.

[0040] The pull plate assembly also includes several second movable seats 45, each of which is rotatably connected to the second nut sleeve 36. Several second sliding modules 46 are provided between the second movable seats 45 and the lower bottom surface of the flat bucket 2 to connect the two. The second sliding modules 46 are arranged along the X-axis. After the second movable seat is connected to the second nut sleeve, the two second movable seats will be driven to move towards each other and away along the X-axis. Moreover, the second movable seats are smoothly slidably installed on the lower bottom surface of the flat bucket through the second sliding modules, which has the advantage of good working stability. The second sliding modules are purchased components.

[0041] The other two telescopic components 41 are fixedly installed at the lower end of the second movable seat 45 in a one-to-one correspondence. The telescopic components 41 below the two second movable seats 45 are driven to move synchronously towards and away from each other along the X-axis.

[0042] The second movable seat 45 includes a first mounting plate 451 that rotatably engages with the second nut sleeve 36, a second mounting plate 452 that is connected to the second sliding module 46, and a fisheye connector 453 that connects the first mounting plate 451 and the second mounting plate 452. The second mounting plate is also fixedly connected to the telescopic member below.

[0043] The mounting base 1 is provided with a third driving component 5 that drives the flat bucket 2 to move up and down. A third sliding module 6 is provided between the side wall of the flat bucket 2 and the mounting base 1. The third driving component adopts a servo motor and a ball screw pair, which can drive the flat bucket to slide vertically on the mounting base along the third sliding module.

[0044] The workflow of this technical solution is as follows:

[0045] 1. When the flat bucket is lowered to the lowest position, the telescopic parts corresponding to the front and rear positions extend to insert the cut bag lip fabric edge into the folding bag support base plate of the lower positioning bag lip clamping cloth mechanism. It must go beyond the front and rear positioning plates of the lower positioning bag lip clamping cloth mechanism. Then, through the first driving part, the first screw and the telescopic part, the front and rear bag lip fabric edges are pulled and pushed under the front and rear positioning plates, waiting for the next step of the pulling plate operation corresponding to the left and right positions.

[0046] 2. The output ends of the telescopic components corresponding to the left and right positions are also equipped with L-shaped pull plates. When the telescopic components on the left and right sides are moved to the set position by the second drive component, the pull plates extend downwards, inserting the pre-cut left and right bag lip fabric edges into the bottom of the folded bag support base plate. The insertion depth is just beyond the bottom of the left and right positioning plates. At this time, the second drive component drives the telescopic components corresponding to the left and right positions to pull out the bag lip fabric edges. Then, through the teeth of the lower clamping plate of the lower positioning bag lip clamping mechanism, the pulled bag lip fabric edges are alternately pressed and clamped under the front and rear lower positioning plates and the left and right positioning plates. Then, the pull plates corresponding to the left and right positions are withdrawn. After the pull plates leave the left and right bag lips, the telescopic components corresponding to the left and right positions drive the pull plates on the left and right sides to retract upwards and wait. At this time, the telescopic components and pull plates on the front and rear sides are driven by the first drive component to retract to the front and rear bag lips. The telescopic components on the front and rear sides retract to the top of the folded bag support base plate. The third drive component drives the flat bucket to rise, thereby raising the four pull plates on the front, rear, left and right to the highest position.

[0047] This alternating clamping mechanism for the lower lip of the bag utilizes the toothed gaps between the front, back, left, and right pull plates in conjunction with the toothed grooves of the lower clamping plate of the lower positioning bag lip clamping mechanism to alternately clamp the lower lip. This provides the advantage of stable operation and solves the instability issues of traditional bag lip rebound and failure to clamp the bag lip. It can also adapt to the openings of garment bags of different sizes. Because this solution uses a motor to drive the pull plates to move forward, backward, left, and right, the length and width of the garment bag opening can be set arbitrarily.

[0048] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

Claims

1. A bag lip folding mechanism comprising: It includes a mounting base (1) and a flat bucket (2) that is lifted and installed on the mounting base (1). The bottom surface of the flat bucket (2) is provided with a sliding plate assembly. The flat bucket (2) is provided with a number of drive components that drive the plate assembly to move in the front, back and left and right directions. The plate assembly includes telescopic members (41) corresponding to the four sides of the flat bucket (2) and a number of plates (42) installed at the bottom of the telescopic members (41). The bottom of the plate (42) is provided with an outwardly facing and toothed working edge (47).

2. The upper folding and pulling bag lip mechanism according to claim 1, characterized in that: The driving component includes: The first screw (31) is rotatably mounted on the bottom surface of the flat bucket (2) and has positive and negative threads at both ends; The first driving component (32) is installed on the inner bottom surface of the flat bucket (2) and its output end is linked to the first screw (31); Several first nut sleeves (33) are threadedly engaged with the first screw (31); The second screw (34) is rotatably mounted on the bottom surface of the flat bucket (2) and has positive and negative threads at both ends; The second driving component (35) is installed on the inner bottom surface of the flat bucket (2) and its output end passes through the bottom of the flat bucket (2) and is linked to the second screw (34); Several second nut sleeves (36) are threadedly engaged with the second screw (34); The first screw (31) is arranged along the Y-axis; the second screw (34) is arranged along the X-axis.

3. The upper folding and pulling bag lip mechanism according to claim 2, characterized in that: The plate assembly also includes several first movable seats (43), the upper end of each first movable seat (43) passes through the bottom of the flat bucket (2) and is rotatably connected to the first nut sleeve (33); the lower part of the first movable seat (43) and the lower bottom surface of the flat bucket (2) are provided with several first sliding modules (44) connecting the two, and the first sliding modules (44) are arranged along the Y-axis direction.

4. The upper folding and pulling bag lip mechanism according to claim 3, characterized in that: Two telescopic components (41) are fixedly installed at the lower end of the first movable seat (43) in a one-to-one correspondence. The telescopic components (41) under the two first movable seats (43) are driven to move synchronously towards each other and away from each other along the Y-axis.

5. The upper folding and pulling bag lip mechanism according to claim 2, characterized in that: The pull plate assembly also includes several second movable seats (45), each second movable seat (45) being rotatably connected to the second nut sleeve (36); several second sliding modules (46) connecting the second movable seat (45) and the bottom surface of the flat bucket (2) are provided, and the second sliding modules (46) are arranged along the X-axis direction.

6. The upper folding and pulling bag lip mechanism according to claim 5, characterized in that: The other two telescopic components (41) are fixedly installed at the lower end of the second movable seat (45) in a corresponding manner. The telescopic components (41) under the two second movable seats (45) are driven to move synchronously towards and away from each other along the X-axis.

7. The upper folding and pulling bag lip mechanism according to claim 5, characterized in that: The second movable seat (45) includes a first mounting plate (451) that rotates with the second nut sleeve (36), a second mounting plate (452) that is connected to the second sliding module (46), and a fisheye connector (453) that connects the first mounting plate (451) and the second mounting plate (452).

8. The upper folding and pulling bag lip mechanism according to claim 1, characterized in that: The mounting base (1) is provided with a third driving component (5) for driving the flat bucket (2) to move up and down, and a third sliding module (6) is provided between the side wall of the flat bucket (2) and the mounting base (1).

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