Square bottom bag bottom edge supporting mechanism

Abstract

The utility model relates to the technical field of canvas bag production equipment, and discloses a square bottom bag bottom edge supporting mechanism and a plurality of sets of needling gripper assemblies which are arranged at one end of a support in a lifting mode and used for opening a square bottom bag opening. The two sets of belt supporting mechanisms are arranged at the lower end of the support, each belt supporting mechanism comprises two sets of clamping jaw air cylinders which do telescopic motion towards the bag opening of the square bottom bag, and two expansion plates are arranged at the output ends of the clamping jaw air cylinders; the two expansion plates are switched between an opening state and a closing state through the clamping jaw air cylinders in the movement direction of the needling gripper assemblies. The bag opening of the canvas bag is opened through the needling gripper assembly, the clamping jaw air cylinder is driven by the motor to stretch into the bag bottom of the canvas bag, the bag bottom is subjected to edge supporting through the expansion plate, the bag bottom is made to be rectangular, follow-up binding-off of the two corners of the bag bottom is facilitated, the automation degree is high, the structure is simple, and manual operation is not needed in the machining process.

Description

Technical Field

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

[0002] Canvas bags are widely used in daily life. Automated equipment is needed in their production. In the production process of square bottom bags, after the three sides of the square bottom bag are sealed, the bottom bag needs to be supported so that the bottom of the canvas bag is stretched to form a rectangle, which is convenient for the overlocking machine to overlock the two ends of the bag bottom to form a square bottom bag.

[0003] Therefore, a device that can support the bottom of the canvas bag is needed in the automated equipment. This device needs to be fully automated and does not require manual operation during processing. Utility Model Content

[0004] Based on this, it is necessary to provide an automated edge-supporting mechanism for the bottom edge of a square-bottom canvas bag in response to the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bottom edge supporting mechanism of a square bottom bag, comprising a bracket.

[0006] The acupuncture gripper assembly is provided with multiple groups and can be lifted and lowered at one end of the bracket to open the bag opening of the square bottom bag.

[0007] The support belt mechanism is provided with two groups and is arranged at the lower end of the bracket. The support belt mechanism includes two groups of clamping cylinders that perform telescopic movement toward the bag opening of the square bottom bag. The output end of the clamping cylinder is provided with two expansion plates. The two expansion plates are transformed between an open state and a merged state through the clamping cylinder along the movement direction of the acupuncture gripper assembly.

[0008] The bag mouth of the canvas bag is opened by a needle-piercing gripper assembly, and the clamping claw cylinders of two sets of support belt mechanisms extend from the bag mouth to the bag bottom, and the bag bottom is supported by an expansion plate.

[0009] In a preferred example, the utility model can be further configured as follows: the acupuncture gripper assembly is provided with at least two groups and is arranged along the bag opening direction of the square bottom bag.

[0010] By adopting the technical solution, the edge supporting action of the two corners of the bottom of the canvas bag is achieved.

[0011] In a preferred example, the utility model can be further configured as follows: a plurality of groups of acupuncture gripper assemblies are lifted and lowered by a plurality of cylinders, and the plurality of cylinders are fixedly arranged at the end of the bracket by a cylinder frame.

[0012] By adopting the above technical solution, the lifting and lowering of multiple acupuncture gripper assemblies are stable.

[0013] In a preferred example, the utility model can be further configured as follows: the distance between the two groups of clamping cylinders provided by the support belt mechanism is smaller than the length of the bag opening of the square bottom bag, the two groups of clamping cylinders perform telescopic movement through the driving assembly, and the two groups of clamping cylinders are arranged along the bag opening direction of the square bottom bag.

[0014] By adopting the above technical solution, the clamping claw cylinder can smoothly extend into the bag opening.

[0015] In a preferred example, the utility model can be further configured as follows: the two groups of the support belt mechanisms also include a fixed frame fixed at the bottom of the bracket, a slide rail is fixedly arranged at one end of the clamping cylinder away from the expansion plate, a track slider is fixedly arranged at the bottom of one end of the fixed frame facing the square bottom bag opening, the slide rail is slidably connected to the track slider, and the drive assembly is arranged at one end of the two groups of the fixed frames away from the square bottom bag.

[0016] By adopting the above technical solution, the clamping claw cylinder can move forward and backward through the driving component.

[0017] In a preferred example, the utility model can be further configured as follows: the driving assembly includes a motor fixed to the bracket, the motor is arranged between the two groups of support belt mechanisms, the ends of the two groups of the fixing frames away from the square bottom bag are rotatably installed with a driving shaft through a bearing seat, a first driving wheel is fixedly provided in the middle of the driving shaft, the motor is connected to the driving shaft through a first transmission belt, second driving wheels are fixedly provided at both ends of the driving shaft, the ends of the two groups of the fixing frames away from the driving assembly are rotatably installed with third driving wheels, the two groups of the third driving wheels are respectively connected to the two corresponding second driving wheels through the second transmission belts, and the ends of the two groups of the slide rails away from the clamping claw cylinders are respectively fixedly connected to the two corresponding second transmission belts through connecting pieces.

[0018] By adopting the above technical solution, the two groups of belt support mechanisms can be moved synchronously by one group of motors, and the stability is high.

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] The mouth of the canvas bag is opened by a needle-punched gripper assembly, and a group of motors are used to drive the clamping claw cylinder to extend into the bottom of the canvas bag. The bottom of the bag is supported by an expansion plate to form a rectangle, which is convenient for subsequent flanging of the two corners of the bottom of the bag. This utility model has a high degree of automation and a simple structure, and does not require manual operation during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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:

[0022] Figure 1 It is a three-dimensional diagram of the utility model from a top-down perspective;

[0023] Figure 2 It is a three-dimensional diagram of the utility model from an upward viewing angle.

[0024] In the attached figure:

[0025] 1. Acupuncture gripper assembly; 12. Cylinder frame; 13. Cylinder; 2. Bracket; 3. Belt support mechanism; 31. Claw cylinder; 32. Expansion plate; 33. Track slider; 34. Slide rail; 35. Fixed frame; 36. Connector; 4. Drive assembly; 41. Motor; 42. First transmission belt; 43. Drive shaft; 44. First drive wheel; 45. Second drive wheel; 46. Third drive wheel; 47. Second transmission belt. DETAILED DESCRIPTION

[0026] 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.

[0027] exist Figure 1-2 In the illustrated embodiment, the utility model provides a technical solution: a bottom edge support mechanism for a square bottom bag, arranged on one side above the conveyor line, comprising: a fixed bracket 2, a needle gripper assembly 1 arranged in front of the end of the bracket 2, the needle gripper assembly 1 is provided with four groups, and can be lifted and lowered at one end of the bracket 2 and arranged along the bag opening of the square bottom bag, and is used to open the bag opening of the square bottom bag (the needle-punching thickness of 1 is the thickness of the canvas bag fabric, and it is necessary to ensure that only the bag opening can be opened after the needle-punching moves upward, and the canvas bag with double-layer fabric cannot be grasped by needle-punching as a whole), the needle gripper assembly 1 is specifically a pneumatic needle suction cup 5, which is a prior art and will not be described in detail here. The four groups of needle gripper assemblies 1 are lifted and lowered by two groups of cylinders 13, and the cylinders 13 are fixedly arranged at the end of the bracket 2 through the cylinder frame 12.

[0028] The support belt mechanism 3 is provided with two groups and is arranged at the lower end of the bracket 2. The support belt mechanism 3 includes two groups of clamping cylinders 31 that perform telescopic movement toward the bag opening of the square bottom bag. The two groups of clamping cylinders 31 are arranged along the bag opening of the square bottom bag. The distance between the two groups of clamping cylinders 31 is less than the length of the bag opening of the square bottom bag. Two expansion plates 32 are provided at the output end of the clamping cylinders 31. The two expansion plates 32 are transformed between an open state and a merged state through the clamping cylinders 31 along the movement direction of the acupuncture gripper assembly 1.

[0029] Among them, the fixed frame 35 is fixed at the bottom of the bracket 2, a slide rail 34 is fixedly arranged at one end of the clamping cylinder 31 away from the expansion plate 32, a track slider 33 is fixedly arranged at the bottom of one end of the fixed frame 35 facing the square bottom bag opening, the slide rail 34 is slidably connected with the track slider 33, and the driving assembly 4 is arranged at one end of the two sets of fixed frames 35 away from the square bottom bag.

[0030] Furthermore, the motor 41 is arranged between the two groups of support belt mechanisms 3 and is fixed to the bracket 2. The ends of the two groups of fixed frames 35 away from the square bottom bag are rotatably installed with a drive shaft 43 through a bearing seat. A first drive wheel 44 is fixedly provided in the middle of the drive shaft 43. The motor 41 is connected to the drive shaft 43 through a first transmission belt 42. Second drive wheels 45 are fixedly provided at both ends of the drive shaft 43. The ends of the two groups of fixed frames 35 away from the drive assembly 4 are rotatably installed with a third drive wheel 46. The two groups of third drive wheels 46 are respectively connected to the two corresponding second drive wheels 45 through a second transmission belt 47. The ends of the two groups of slide rails 34 away from the clamping claw cylinder 31 are respectively fixedly connected to the two corresponding second transmission belts 47 through a connecting piece 36.

[0031] The specific working principle of the utility model will be described in detail below: the bracket 2 is fixed on one side above the conveyor line. When the canvas bag with three edges sealed is conveyed to the bottom of the acupuncture gripper assembly 1 through the conveyor line, the acupuncture gripper assembly 1 moves down through the cylinder 13, acupunctures the canvas bag opening and then moves up, at which time the canvas bag opening is opened;

[0032] The first transmission belt 42 is driven to rotate by the motor 41, and the first transmission belt 42 drives the first driving wheel 44 to rotate, and the first driving wheel 44 drives the driving shaft 43 to rotate, thereby driving the two second driving wheels 45 to rotate, and the third driving wheel 46 drives the second transmission belt 47 to rotate, thereby driving the slide rail 34 to move forward and backward, and the clamping claw cylinder 31 is sent to the bottom of the canvas bag. After completion, the track slider 32 opens to support the bottom of the canvas bag to support the bottom of the canvas bag into a rectangle;

[0033] In the subsequent process, the clamping claws are required to clamp the two corners of the bottom of the canvas bag for flanging and trimming (not shown in the figure) to realize the production of square-bottomed canvas bags.

[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 supporting mechanism for a square bottom bag, comprising a bracket (2), characterized in that: Acupuncture gripper assembly (1), wherein the acupuncture gripper assembly (1) is provided with a plurality of groups and is escalably arranged at one end of a support (2) and is used to open the opening of a square bottom bag; A support belt mechanism (3), wherein the support belt mechanism (3) is provided with two groups and is arranged at the lower end of the bracket (2), wherein the support belt mechanism (3) comprises two groups of clamping claw cylinders (31) that perform telescopic movement toward the bag opening of the square bottom bag, wherein the output end of the clamping claw cylinder (31) is provided with two expansion plates (32), and the two expansion plates (32) are transformed between an open state and a combined state along the movement direction of the acupuncture gripper assembly (1) through the clamping claw cylinder (31).

2. A bottom edge supporting mechanism for a square bottom bag according to claim 1, characterized in that: The acupuncture gripper assembly (1) is provided with at least two groups and is arranged along the bag opening direction of the square bottom bag.

3. The bottom edge supporting mechanism of a square bottom bag according to claim 1, characterized in that: The plurality of groups of acupuncture gripper assemblies (1) are lifted and lowered by means of the plurality of cylinders (13), and the plurality of cylinders (13) are fixedly arranged on the end of the bracket (2) via a cylinder frame (12).

4. The bottom edge supporting mechanism of a square bottom bag according to claim 1, characterized in that: The distance between the two groups of clamping cylinders (31) provided with the supporting belt mechanisms (3) is smaller than the length of the bag opening of the square bottom bag. The two groups of clamping cylinders (31) perform telescopic movement through the driving assembly (4). The two groups of clamping cylinders (31) are arranged along the bag opening direction of the square bottom bag.

5. A bottom edge supporting mechanism for a square bottom bag according to claim 4, characterized in that: The two groups of the support belt mechanisms (3) also include a fixed frame (35) fixed at the bottom of the bracket (2); a slide rail (34) is fixedly provided at one end of the clamping cylinder (31) away from the expansion plate (32); a track slider (33) is fixedly provided at the bottom of one end of the fixed frame (35) facing the square bottom bag opening; the slide rail (34) is slidably connected to the track slider (33); and the driving assembly (4) is arranged at one end of the two groups of the fixed frames (35) away from the square bottom bag.

6. A bottom edge supporting mechanism for a square bottom bag according to claim 5, characterized in that: The driving assembly (4) comprises a motor (41) fixed to the bracket (2), the motor (41) being arranged between the two groups of belt support mechanisms (3), the ends of the two groups of fixed frames (35) away from the square bottom bag being rotatably mounted with a driving shaft (43) through a bearing seat, a first driving wheel (44) being fixedly arranged in the middle of the driving shaft (43), the motor (41) being transmission-connected to the driving shaft (43) through a first transmission belt (42), second driving wheels (45) being fixedly arranged at both ends of the driving shaft (43), third driving wheels (46) being rotationally mounted on the ends of the two groups of fixed frames (35) away from the driving assembly (4), the two groups of third driving wheels (46) being transmission-connected to the two corresponding groups of second driving wheels (45) through a second transmission belt (47), and the ends of the two groups of slide rails (34) away from the clamping claw cylinder (31) being fixedly connected to the two corresponding groups of second transmission belts (47) through a connecting piece (36).

Images