Bag opening clamping and transferring mechanism

Abstract

A supporting piece is arranged at the bottom of the telescopic end of a lifting assembly, at least two finger clamping assemblies are evenly arranged on the supporting piece, each finger clamping assembly comprises a finger clamping block and a finger air cylinder, each finger air cylinder is arranged at the bottom of the supporting piece, and two clamping jaws of each finger air cylinder are connected with the finger clamping blocks respectively. The two finger clamping blocks are oppositely arranged to form a clamp structure, and the finger air cylinder can drive the two finger clamping blocks to clamp in an approaching mode or loosen away from each other. The two finger clamping blocks can be driven by the finger air cylinder to be clamped in an approaching mode, then the lifting assemblies are used for driving the telescopic ends of the finger clamping blocks and the finger clamping blocks on the finger clamping blocks to move upwards, a bag opening can be clamped and lifted upwards to be kept in a vertical state, and then the moving assemblies are used for driving the belt clamping plates and the lifting assemblies on the belt clamping plates to move oppositely. The bag opening is pulled to be kept in a vertical state to be guided into the edge folding mechanism and cannot be clamped or blocked to be bent.

Description

Technical Field

[0001] This utility model relates to the field of packaging and control technology, and in particular to a bag clamping and conveying mechanism. Background Technology

[0002] In industries that require packaging materials, such as sugar, food, feed, chemical, starch, pharmaceutical, fertilizer, and nano-calcium carbonate industries, powders and granules need to be bagged, for example, using inner and outer bags as packaging bags.

[0003] For example, the Chinese invention patent "A Fully Automatic Production Line for Packaged Inner and Outer Bag Material Packaging, Publication No. CN110697149A" includes a frame, a bag placing frame, a bag picking mechanism, a bag placing mechanism, a rotating mechanism, a loading hopper, a bag clamping mechanism, a bag supporting mechanism, a bag inserting mechanism, a packaging scale, a discharge hopper, a discharge sealing mechanism, an air squeezing mechanism, an inner bag sealing mechanism, an inner bag clamping and moving mechanism, an inner bag inserting mechanism, an outer bag opening mechanism, a sewing and conveying mechanism, a sewing machine, a belt conveyor, a vision camera, and a rejection mechanism. It can operate smoothly in dusty environments without jamming during shrinkage and expansion; the sewing and conveying mechanism clamps both sides of the sewing thread at the opening of the outer bag of the packaged bag for sewing, preventing misalignment; the vision camera identifies defective products after sewing, which are then rejected by the rejection mechanism, improving the product pass rate.

[0004] As mentioned above, before entering the sewing machine, the upright bag opening is usually guided into the folding mechanism by a belt conveyor. However, there is a problem that the bag opening may get stuck on the folding guide plate when entering the folding mechanism. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned problems by providing a bag-clamping and conveying mechanism that can clamp and pull the bag opening to keep it upright before guiding it into the folding mechanism.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The bag-clamping and transferring mechanism includes a moving component and a lifting component. The moving component is equipped with a clamping plate, and the lifting component is mounted on the clamping plate. The moving component can drive the clamping plate and the lifting component on it to reciprocate, and the lifting component can drive its telescopic end to move up and down. It also includes a support member and at least two finger clamping assemblies. The support member is located at the bottom of the telescopic end of the lifting component, and at least two finger clamping assemblies are evenly arranged on the support member. Each finger clamping assembly includes a finger clamping block and a finger cylinder. The finger cylinder is located at the bottom of the support member, and the two grippers of the finger cylinder are respectively connected to the finger clamping block. The two finger clamping blocks are arranged opposite each other to form a clamping structure. The finger cylinder can drive the two finger clamping blocks to approach and clamp or move away and release.

[0008] The moving component includes a suspension plate, a guide rail assembly, a pulley assembly, a motor assembly, a synchronous belt, and a belt clamp. The guide rail assembly includes a slider and a guide rail. The slider is slidably connected to the guide rail. End I of the guide rail is located on the suspension plate, and end II of the guide rail is located on the pulley assembly. The motor assembly is located on the suspension plate and is connected to the pulley assembly via the synchronous belt. The belt clamp is located on the slider and is connected to the synchronous belt. The suspension plate has a mounting part for fixed installation on the application equipment, thus realizing the assembly of the moving component.

[0009] The lifting assembly includes a cylinder connector and a three-axis cylinder. The cylinder connector is located at the bottom with a clamping plate, and the three-axis cylinder is located at the bottom of the cylinder connector. The piston rod extension end of the three-axis cylinder is arranged downwards to realize the assembly of the lifting assembly.

[0010] As mentioned above, the two finger grippers can approach and clamp or move away from each other under the drive of the finger cylinder. Then, the lifting component drives its telescopic end and the finger grippers on it to move up and down, thereby clamping the bag opening and lifting it to keep it upright. Then, the moving component drives the clamping plate and the lifting component on it to move back and forth, pulling the bag opening to keep it upright and guiding it into the folding mechanism, so that it will not be stuck or obstructed and bent.

[0011] Based on the aforementioned solution, in an improved solution, the lifting assembly of the moving mechanism further includes a three-axis connecting plate. The three-axis connecting plate has a triangular block structure, and the cylinder connector has a box-shaped structure. The top of the three-axis connecting plate is located at the bottom of the cylinder connector, and the bottom of the three-axis connecting plate extends downward. The three-axis cylinder is fixed to the bottom side wall of the three-axis connecting plate. The box-shaped cylinder connector uses a flange structure to connect the triangular block three-axis connecting plate, which improves the connection stability and is compatible with the fixing of the three-axis cylinder, making it easy to disassemble and assemble.

[0012] Based on the aforementioned solution, in an improved version, to address the problem of unstable gripping and easy slippage of the finger grippers, the inner wall of the finger grippers of the moving mechanism is provided with a contact surface. When the two finger grippers are clamped, their contact surfaces are tightly pressed together to form a clamping surface. The contact surface of the finger grippers is 120-150mm long and 20-40mm wide. This creates a clamping surface with a certain area, improving clamping stability.

[0013] Based on the aforementioned solution, in an improved solution, the finger clamp assembly of the moving mechanism further includes a finger connecting plate. The finger connecting plate has a triangular block structure, the support has a plate structure, the top of the finger connecting plate is located at the bottom of the support, the bottom of the finger connecting plate extends downward, and the finger cylinder is fixed on the bottom side wall of the finger connecting plate. The triangular block connecting plate is used for connection, which improves connection stability and facilitates disassembly and assembly.

[0014] Based on the aforementioned solution, in an improved version, to address the movement limitation problem of the finger gripper's clamping function, the finger gripper assembly of the moving mechanism further includes a limiting seat, a limiting cylinder, and a limiting block. The limiting seat is located at the top of the finger cylinder or the top of the finger connecting plate. The limiting cylinder is positioned on the limiting seat, with its limiting cone facing downwards. The limiting block is located on the side wall of the limiting cylinder, and the limiting cone of the limiting cylinder can extend downwards to press against the limiting block. Thus, by limiting the movement of the finger gripper through the limiting cylinder, the finger gripper moves a short distance after clamping and then releases.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects:

[0016] The bag-clamping and transferring mechanism of this utility model has two finger clamping blocks that can approach and clamp together under the drive of finger cylinders. Then, the lifting component drives its telescopic end and the finger clamping blocks on it to move upward, thereby clamping the bag opening and lifting it to keep it in an upright state. Then, the moving component drives the clamping plate and the lifting component on it to move in the opposite direction, pulling the bag opening to keep it in an upright state and guiding it into the folding mechanism. It will not be stuck or obstructed and bent. Then, it is reversed to reset it and thus achieve repeated operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 yes Figure 1 A magnified view of a portion of the image. Figure 3 yes Figure 1 Another enlarged view of a portion of the image. Figure 4 yes Figure 1 Top view. Figure 5 yes Figure 1 Side view. Figure 6 yes Figure 5 A magnified view of a portion of the image. Figure 7 yes Figure 1 Front view. Figure 8 yes Figure 7 A magnified view of a portion of the image.

[0018] In the attached diagram, the components are: pulley assembly 1, guide rail assembly 2, synchronous belt 3, limit cylinder 4, three-axis connecting plate 5, three-axis cylinder 6, limit cone 7, finger cylinder 8, finger clamping block 9, finger connecting plate 10, limit block 11, limit seat 12, motor assembly 13, support component 14, clamping plate 15, bridge-type drag chain 16, screw 17, elastic washer 18, flat washer 19, bag clamping origin photoelectric seat 20, first pad 21, cylinder connector 23, and second pad 22. Detailed Implementation

[0019] Example 1

[0020] See Figures 1-8The bag-clamping and transferring mechanism of this embodiment 1 includes a moving component and a lifting component. The moving component is equipped with a clamping plate 15, and the lifting component is disposed on the clamping plate 15. The moving component can drive the clamping plate 15 and the lifting component on it to move back and forth, and the lifting component can drive its telescopic end to move up and down. It also includes a support member 14 and at least two finger clamping components. The support member 14 is disposed at the bottom of the telescopic end of the lifting component, and at least two finger clamping components are evenly arranged on the support member 14. The finger clamping components include finger clamping blocks 9 and finger cylinders 8. The finger cylinders 8 are disposed at the bottom of the support member 14. The two claws of the finger cylinders 8 are respectively connected to the finger clamping blocks 9, and the two finger clamping blocks 9 are arranged opposite each other to form a clamping structure. The finger cylinders 8 can drive the two finger clamping blocks 9 to approach and clamp or move away and release.

[0021] The finger cylinder is existing technology, configured with an external air source, solenoid valve, and controller for connection and control, and will not be described in detail here. The improvement of this application is that it is combined with the moving component and the lifting component in a structural design. Moreover, the moving component and the lifting component are both existing technologies. In order to facilitate the use of the external air source, solenoid valve, and controller with the finger cylinder, the cylinder drive structure will be briefly described as an example.

[0022] The moving assembly includes a suspension plate 200, a guide rail assembly 2, a pulley assembly 1, a motor assembly 13, a synchronous belt 3, and a belt clamp 15. The guide rail assembly 2 includes a slider and a guide rail. The slider is slidably connected to the guide rail. End I of the guide rail is located on the suspension plate 200, and end II of the guide rail is located on the pulley assembly 1. The motor assembly 13 is located on the suspension plate 200 and is connected to the pulley assembly 1 via the synchronous belt 3. The belt clamp 15 is located at the bottom of the slider and is connected to the synchronous belt 3. The suspension plate 200 has a mounting section for fixed installation on the application equipment, as shown in the figure. The suspension plate is made of sheet metal with slotted holes for mounting bolts and nuts (welding is also an option). Similarly, it is connected and fixed with the hanging plate at end II of the guide rail, thus assembling the moving assembly. A photoelectric base 20 for mounting photoelectric switches is provided on the suspension plate. A bridge-type drag chain 16 is provided on the guide rail assembly for routing wires.

[0023] The lifting assembly includes a cylinder connector 23 and a three-axis cylinder 6. The cylinder connector 23 is located at the bottom of the clamping plate 15, and the three-axis cylinder 6 is located at the bottom of the cylinder connector 23. The piston rod extension end of the three-axis cylinder is arranged downward. The clamping plate has a small vertical depth, and the cylinder connector is used to support it so as to realize the assembly of the lifting assembly.

[0024] The working process of this bag-clamping and conveying mechanism is as follows: During installation, it is mounted on the external application equipment via a suspension plate. In use, the starter motor drives the synchronous belt to rotate, moving end II of the guide rail with clamping plates, and stops when it reaches its designated position. The three-axis cylinder is then activated to move downwards, and the finger cylinder controls its grippers to open with the finger grippers, descending to the bag opening position and stopping. The finger cylinder stops when the opening angle is reached. After descending to the bag opening position, the finger cylinder closes the finger grippers, clamping the bag opening and stopping. Then, the three-axis cylinder moves upwards, keeping the bag opening upright, and stops when it reaches its designated position. Next, the starter motor drives end I of the guide rail with clamping plates to move, synchronously coordinating with the conveyor belt supporting the bag and its contents, clamping the bag opening and keeping it upright as it moves towards end I of the guide rail, thus guiding it into the folding mechanism, stopping when it reaches its designated position. This process is then repeated to achieve repetitive operation.

[0025] As described above, the two finger grippers can approach and clamp under the drive of the finger cylinder. Then, the lifting component drives its telescopic end and the finger grippers on it to move upward, thereby gripping the bag opening and lifting it to keep it upright. Then, the moving component drives the clamping plate and the lifting component on it to move in the opposite direction, pulling the bag opening to keep it upright and guiding it into the folding mechanism. It will not be stuck or obstructed and bent. Then, it is reversed to reset it and thus achieve repeated operation.

[0026] Example 2

[0027] Based on Example 1, Example 2 has a wider clamping surface, as detailed below:

[0028] As shown in Example 1, the finger gripper structure may cause instability and slippage when the gripping surface is narrow. Therefore, see... Figures 1-8 In this embodiment 2, the inner wall of the finger gripper of the moving mechanism is provided with a contact surface. When the two finger grippers are clamped, their contact surfaces are tightly pressed together to form a clamping surface. The contact surface of the finger gripper has a length of 120-150mm and a width of 20-40mm. Specifically, as shown in the figure, its horizontal length is 135mm and its vertical width is 30mm. This forms a clamping surface with a certain area, improving the contact clamping force and increasing clamping stability.

[0029] Example 3

[0030] See Figures 1-8Based on Embodiment 1 or Embodiment 2, the lifting assembly of the moving mechanism in Embodiment 3 further includes a three-axis connecting plate 5. The three-axis connecting plate 5 has a triangular block (triangular plates are arranged on both sides of the corner plate for connection) structure. The cylinder connector 23 has a box-shaped structure. The top of the three-axis connecting plate 5 is located at the bottom of the cylinder connector 23. The bottom of the three-axis connecting plate 5 extends downward. The three-axis cylinder 6 is fixed on the bottom side wall of the three-axis connecting plate. As shown in the figure, it is connected and fixed with the first pad 21 and the nut. The box-shaped cylinder connector adopts a flange structure and is connected to the triangular block corner plate three-axis connecting plate with bolts and nuts to improve the connection stability and adapt to the fixing of the three-axis cylinder, which is convenient for disassembly and assembly.

[0031] Example 4

[0032] See Figures 1-8 Based on Embodiment 1, Embodiment 2, or Embodiment 3, the finger clamp assembly of the moving mechanism in Embodiment 4 further includes a finger connecting plate 10. The finger connecting plate 10 has a triangular block structure, and the support member 14 has a plate structure. The top of the finger connecting plate 10 is located at the bottom of the support member 14. As shown in the figure, it is connected and fixed by screws 17, elastic washers 18, flat washers 19, and second pads 22. The bottom end of the finger connecting plate 10 extends downward. The finger cylinder 8 is fixed to the bottom side wall of the finger connecting plate 10 by bolts. The triangular block connecting plate is used to improve the connection stability and facilitate disassembly and assembly.

[0033] Example 5

[0034] See Figures 1-8 Based on Embodiment 1 or Embodiment 2, 3, or 4, in order to solve the problem of movement limitation of the finger gripper function, see [reference needed]. Figures 1-8 In this embodiment 5, the finger clamp assembly of the moving mechanism further includes a limiting seat 12, a limiting cylinder 4, and a limiting block 11. The limiting seat 12 is arranged at the top of the finger cylinder 8 or the top of the finger connecting plate 10. The limiting cylinder 4 is disposed on the limiting seat 12, with the limiting cone 7 of the limiting cylinder 4 facing downwards. The limiting block (using an angle plate) 11 is arranged on the side wall of the limiting cylinder 4, and the limiting cone 7 of the limiting cylinder 4 can extend downwards to press against the limiting block 11. The limiting cylinder is connected to an external air source and a solenoid valve, etc., through a vent pipe, which will not be described in detail here. Thus, by limiting the movement with the limiting cylinder, the limiting cone 7 extends downwards to press against the limiting block 11, and the finger clamp moves a certain distance after clamping before being released.

[0035] It should be noted that the examples of the above embodiments can preferably be combined with one or more of each other according to actual needs, and the accompanying drawings of multiple examples adopt a set of combined technical features, which will not be described in detail here.

[0036] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "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, and 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.

[0037] The above description is a detailed explanation and illustration of the preferred embodiments of the present utility model. However, these descriptions are not intended to limit the scope of protection claimed by the present utility model. All equivalent changes or modifications made under the technical teachings of the present utility model shall fall within the patent protection scope covered by the present utility model.

Claims

1. A bag-clamping and transferring mechanism, comprising a moving component and a lifting component, wherein the moving component is equipped with a clamping plate, the lifting component is disposed on the clamping plate, the moving component is capable of driving the clamping plate and the lifting component thereon to reciprocate, and the lifting component is capable of driving its telescopic end to move up and down; characterized in that: It also includes a support member and at least two finger clamping assemblies. The support member is located at the bottom of the telescopic end of the lifting assembly. The at least two finger clamping assemblies are evenly arranged on the support member. Each finger clamping assembly includes a finger clamping block and a finger cylinder. The finger cylinder is located at the bottom of the support member. The two claws of the finger cylinder are respectively connected to the finger clamping block, and the two finger clamping blocks are arranged opposite each other to form a clamping structure. The finger cylinder can drive the two finger clamping blocks to approach and clamp or move away and release.

2. The bag-clamping and transferring mechanism according to claim 1, characterized in that: The moving component includes a suspension plate, a guide rail assembly, a pulley assembly, a motor assembly, a synchronous belt, and a belt clamp. The guide rail assembly includes a slider and a guide rail. The slider is slidably connected to the guide rail. One end of the guide rail is disposed on the suspension plate, and the other end of the guide rail is disposed on the pulley assembly. The motor assembly is disposed on the suspension plate and is connected to the pulley assembly via the synchronous belt. The belt clamp is disposed on the slider and is connected to the synchronous belt. The suspension plate is provided with a mounting part for fixed installation on the application device.

3. The bag-clamping and transferring mechanism according to claim 1, characterized in that: The lifting assembly includes a cylinder connector and a three-axis cylinder. The cylinder connector is located at the bottom of the assembly with a clamping plate, and the three-axis cylinder is located at the bottom of the cylinder connector. The piston rod extension end of the three-axis cylinder is arranged downwards.

4. The bag-clamping and transferring mechanism according to claim 3, characterized in that: The lifting assembly also includes a three-axis connecting plate, which has a triangular block structure. The cylinder connector has a box-shaped structure. The top of the three-axis connecting plate is located at the bottom of the cylinder connector, and the bottom of the three-axis connecting plate extends downward. The three-axis cylinder is fixed to the bottom side wall of the three-axis connecting plate.

5. The bag-clamping and conveying mechanism according to claim 1, characterized in that: The inner wall of the finger clamping block is provided with a contact surface, and the contact surfaces of the two finger clamping blocks are tightly pressed together to form a clamping surface when clamped.

6. The bag-clamping and transferring mechanism according to claim 5, characterized in that: The contact surface of the finger clamp has a length of 120-150mm and a width of 20-40mm.

7. The bag-clamping and transferring mechanism according to claim 1, characterized in that: The finger clamp assembly also includes a finger connecting plate, which has a triangular block structure. The support member has a plate structure. The top of the finger connecting plate is located at the bottom of the support member, and the bottom of the finger connecting plate extends downward. The finger cylinder is fixed to the bottom side wall of the finger connecting plate.

8. The bag-clamping and transferring mechanism according to claim 1, characterized in that: The finger clamp assembly also includes a limiting seat, a limiting cylinder, and a limiting block. The limiting seat is arranged at the top of the finger cylinder or the top of the finger connecting plate. The limiting cylinder is disposed on the limiting seat with the limiting cone of the limiting cylinder facing downward. The limiting block is disposed on the side wall of the limiting cylinder, and the limiting cone of the limiting cylinder can extend downward to press against the limiting block.

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