Square bottom bag bottom edge sewing equipment

Abstract

The utility model relates to the technical field of canvas bag production equipment, and discloses a square bottom bag bottom edge sewing device and a pressing mechanism, the pressing mechanism is arranged above two binding-off tables, the pressing mechanism comprises two liftable and parallel edge pressing strips, the two edge pressing strips are used for being matched with the binding-off tables to press two corners of the bottom edge of a square bottom bag, and the two corners of the bottom edge of the square bottom bag are matched with the binding-off tables. The edge pressing strip moves in the overlocking direction of the overlocking machine through the Y-axis servo module. And the discharging assembly frame is used for installing clamping jaw assemblies for clamping the two corners of the bottom edge of the square bottom bag, moves towards the direction of the pressing mechanism through a discharging driving piece and does lifting motion through a lifting assembly. The device is high in automation degree, manual operation is not needed during machining, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of canvas bag production equipment, in particular to a sewing device used for the bottom edge of a square-bottom canvas bag. Background Art

[0002] Canvas bags are widely used in daily life to carry items. In the production of canvas bags, automated production equipment is required.

[0003] The bottom of the square bottom canvas bag is rectangular. In its production process, after the three sides of the canvas bag are sealed by the overlock machine, the bottom of the canvas bag needs further processing. The bottom of the bag needs to be supported to form a rectangle. The two corners of the bottom of the bag are protruding. The two corners of the bottom of the bag are sewn to make the bottom of the bag form a rectangle, that is, a square bottom bag is formed.

[0004] The existing square bottom bag processing equipment has a low degree of automation for bag bottom hemming, and many manufacturers use manual sewing, which does not improve processing efficiency. Utility Model Content

[0005] Based on this, it is necessary to provide a sewing device for the bottom edge of a square bottom canvas bag in response to the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a square bottom bag bottom edge sewing device, comprising two sets of oppositely arranged overlock machines, each set of the overlock machines is provided with an overlock table.

[0007] The clamping mechanism is arranged above the two hemming tables, and the clamping mechanism includes two liftable and parallel hemming strips, which are used to cooperate with the hemming tables to clamp the two corners of the bottom edge of the square bottom bag, and the hemming strips are displaced along the hemming direction of the hemming machine through the Y-axis servo module.

[0008] The material discharge component frame is used to install the clamping claw components for clamping the two corners of the bottom edge of the square bottom bag, and is displaced toward the clamping mechanism through the material discharge driving member. The material discharge component frame is lifted and lowered by the lifting component.

[0009] After the two corners of the bottom of the canvas bag are clamped by the unloading component rack and the clamping claw assembly at the bottom of the unloading component rack, the two corners are pressed on the overlocking table by the clamping mechanism and moved toward the overlocking machine to realize automatic overlocking. A trimming machine is also provided after the overlocking machine to cut off excess fabric.

[0010] In a preferred example, the utility model can be further configured as follows: the clamping mechanism also includes a cylinder that is displaced along the overlocking direction of the overlocking machine through a Y-axis servo module, a bracket is fixedly installed downward at the output end of the cylinder, and the two pressure strips are fixedly installed on both sides of the bottom of the bracket.

[0011] By adopting the technical solution, the two corners of the bottom of the canvas bag are pressed tightly on the overlocking table and moved to the overlocking machine to realize overlocking.

[0012] In a preferred example, the utility model can be further configured as follows: the lifting assembly includes at least one vertical track and a rack frame and a lifting frame, the lifting frame is slidably installed with the slide rails on the track and the rack frame, a motor is fixedly installed on the upper end of the lifting frame, and a rotatable gear is transmission-connected to the output end of the motor, the gear is meshed with the rack provided on the track and the rack frame, and when the gear is rotated forwards and backwards by the motor, the lifting frame performs a lifting movement.

[0013] In a preferred example, the utility model can be further configured as follows: two tracks and racks are provided, a driving shaft is rotatably mounted on the lifting frame through a bearing seat, the motor drives the driving shaft to rotate, gears are fixedly provided at both ends of the driving shaft, and the two gears are respectively meshed with the racks on the two tracks and racks.

[0014] By adopting the above technical solution, the clamping claw assembly at the bottom of the unloading assembly frame can be quickly raised and lowered.

[0015] In a preferred example, the utility model can be further configured as follows: a main transmission wheel is fixedly provided at the middle of the driving shaft, and the output end of the motor is connected to the main transmission wheel through a transmission belt.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] The utility model transfers the canvas bag to the lower end of the pressing mechanism through the clamping mechanism at the bottom of the material discharging component frame, presses the two corners of the bottom of the canvas bag through the edge pressing strip, drives the canvas bag to slide on the edge-sealing table through the Y-axis servo module, and the edge-sealing machine performs edge-sealing on the bottom of the bag, so that the bottom of the canvas bag forms a rectangle, forming a square-bottom canvas bag. The utility model has a high degree of automation, does not require manual operation during processing, and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the lifting component in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the pressing mechanism in the utility model.

[0023] In the attached figure:

[0024] 1. Clamping mechanism; 11. Y-axis servo module; 12. Cylinder; 13. Bracket; 14. Edge pressing strip; 2. Overlock machine; 21. Overlock table; 3. Lifting assembly; 31. Track and rack frame; 32. Motor; 33. Drive shaft; 34. Main drive wheel; 35. Gear; 36. Lifting frame; 4. Unloading assembly frame; 5. Unloading drive parts. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] exist Figure 1-4 In the illustrated embodiment, the utility model provides a technical solution: a square bottom bag bottom edge sewing device, comprising two sets of oppositely arranged overlock machines 2, each set of overlock machines 2 is provided with an overlock table 21, and the overlock table 21 is a smooth surface of aluminum alloy.

[0027] The clamping mechanism 1 is arranged above the two flanging tables 21, and includes a cylinder 12 that is displaced along the flanging direction of the flanging machine 2 through the Y-axis servo module 11. A bracket 13 is fixedly installed downward at the output end of the cylinder 12. Two pressure strips 14 are fixedly installed on both sides of the bottom of the bracket 13. The two pressure strips 14 are used to cooperate with the flanging tables 21 to clamp the two corners of the bottom edge of the square bottom bag. The pressure strips 14 are displaced along the flanging direction of the flanging machine 2 through the Y-axis servo module 11.

[0028] Lifting assembly 3: includes two vertical rails and a rack frame 31 and a lifting frame 36. The lifting frame 36 is slidably installed with the slide rails on the rails and the rack frame 31. A motor 32 is fixedly installed on the upper end of the lifting frame 36. The output end of the motor 32 is transmission-connected with a rotatable gear 35. The gear 35 is meshed with the rack provided on the rails and the rack frame 31. When the gear 35 is rotated forwards and backwards by the motor 32, the lifting frame 36 performs a lifting movement.

[0029] Among them, a driving shaft 33 is rotatably installed on the lifting frame 36 through a bearing seat, and the motor 32 drives the driving shaft 33 to rotate. Gears 35 are fixedly provided at both ends of the driving shaft 33. The two gears 35 are respectively meshed with the two tracks and the racks on the rack frame 31. A main transmission wheel 34 is fixedly provided in the middle of the driving shaft 33, and the output end of the motor 32 is connected to the main transmission wheel 34 through a transmission belt.

[0030] The unloading component frame 4 is used to install the clamping claw assembly for clamping the two corners of the bottom edge of the square bottom bag, and is displaced toward the clamping mechanism 1 through the unloading driving member 5 (servo module principle). The unloading component frame 4 is lifted and lowered by the lifting component 3. The specific structure of the clamping claw assembly at the bottom of the unloading component frame 4 is not shown in the figure.

[0031] The specific working principle of the utility model will be described in detail below: the motor 32 drives the main drive wheel 34 to rotate through the transmission belt, drives the drive shaft 33 to rotate, drives the two gears 35 to rotate synchronously, and the gear 35 is engaged with the rack of the track and the rack rack 31 to realize the lifting and lowering of the lifting frame 36, that is, the lifting and lowering of the discharge assembly frame 4.

[0032] The clamping claw assembly at the bottom of the unloading component rack 4 realizes forward and backward displacement toward the overlocking machine 2 through the unloading driving part 5 (through the servo module principle). After the bottom of the canvas bag is supported by the front workstation, the bottom of the bag forms a rectangular shape. The clamping claw assembly clamps the two corners of the bottom of the canvas bag, with the bag opening facing downward. The clamping claw assembly at the bottom of the unloading component rack 4 is driven to rise and fall through the lifting component 3, and is displaced toward the two groups of overlocking machines 2 through the unloading driving part 5. When the bottom corner of the bag is placed above the overlocking table 21, the Y-axis servo module 11 drives the edge pressing strip 14 to move to the two bag corners, and is pressed down by the cylinder 12. The edge pressing strip 14 cooperates with the overlocking table 21 to press the bag corners, and the unloading component rack 4 is reset.

[0033] Through the Y-axis servo module 11, the canvas bag pressed by the two pressing strips 14 is displaced toward the two overlocking machines 2. The overlocking machines 2 overlock the bag corners, and the trimming machines positioned after the overlocking machines trim the excess fabric. After completion, the material is taken through the next process, and the pressing mechanism 1 is reset.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom edge sewing device for a square bottom bag, comprising two sets of overlocking machines (2) arranged opposite to each other, each set of overlocking machines (2) being provided with an overlocking station (21), characterized in that: A clamping mechanism (1), the clamping mechanism (1) is arranged above the two flanging tables (21), the clamping mechanism (1) comprises two liftable and parallel flanging strips (14), the two flanging strips (14) are used to cooperate with the flanging tables (21) to clamp the two corners of the bottom edge of the square bottom bag, the flanging strips (14) are displaced along the flanging direction of the flanging machine (2) through the Y-axis servo module (11); A material discharge component frame (4) is used to install a clamping claw assembly for clamping the two corners of the bottom edge of the square bottom bag, and is displaced toward the clamping mechanism (1) through a material discharge driving member (5). The material discharge component frame (4) is lifted and lowered by a lifting assembly (3).

2. The bottom edge sewing device for a square bottom bag according to claim 1, characterized in that: The clamping mechanism (1) also includes a cylinder (12) that is displaced along the flanging direction of the flanging machine (2) through a Y-axis servo module (11), a bracket (13) being fixedly mounted downward on the output end of the cylinder (12), and two flanging strips (14) being fixedly mounted on both sides of the bottom of the bracket (13).

3. The bottom edge sewing device of a square bottom bag according to claim 1, characterized in that: The lifting assembly (3) comprises at least one vertical track and rack frame (31) and a lifting frame (36); the lifting frame (36) is slidably mounted on the track and the slide rail on the rack frame (31); a motor (32) is fixedly mounted on the upper end of the lifting frame (36); a rotatable gear (35) is transmission-connected to the output end of the motor (32); the gear (35) is meshed with a rack provided on the track and the rack frame (31); when the gear (35) is rotated forwards and backwards by the motor (32), the lifting frame (36) performs a lifting motion.

4. The bottom edge sewing device for a square bottom bag according to claim 3, characterized in that: The rails and racks (31) are provided with two rails, a driving shaft (33) is rotatably mounted on the lifting frame (36) through a bearing seat, the motor (32) drives the driving shaft (33) to rotate, and gears (35) are fixedly provided at both ends of the driving shaft (33), and the two gears (35) are respectively meshed with the racks on the two rails and racks (31).

5. The bottom edge sewing device for a square bottom bag according to claim 4, characterized in that: A main transmission wheel (34) is fixedly provided in the middle of the driving shaft (33), and the output end of the motor (32) is connected to the main transmission wheel (34) through a transmission belt.

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