Packaging bag collecting device

Abstract

The utility model discloses a packaging bag collecting device and aims to solve the problems that packaging bags are stacked disorderly due to the fact that the packaging bags are soft in texture after being cut in the prior art, manual secondary arrangement is needed, and production efficiency is low. The device comprises a conveying belt, a claw arm material moving mechanism and a stacking material collecting mechanism. The conveying belt comprises a middle conveying belt and side conveying belts with gaps reserved on the two sides and is driven by a first servo motor. The claw arm material moving mechanism comprises a rotating shaft driven by a second servo motor and material suction claw arms evenly distributed on the circumference, the material suction claw arms are hollow, suction holes are formed in the circumferential walls of the material suction claw arms, and the material suction claw arms can penetrate through the gaps to suck and flatly transfer the packaging bags. The stacking and collecting mechanism comprises a chain driven by a third servo motor and evenly-distributed collecting assemblies, and each collecting assembly comprises a collecting groove defined by a flat plate and a guide rod. By means of mechanical automation, flat adsorption, accurate transfer and regular stacking of the packaging bags are achieved, production efficiency is remarkably improved, and labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a receiving device for automatically and neatly stacking slit flexible packaging bags. Background Technology

[0002] In the production and processing of flexible packaging bags, they usually need to be cut on a bag-making machine to form individual packaging bags. In traditional production methods, after the cut packaging bags are output by the conveyor belt, they are often stacked together randomly in a loose state because the packaging bags themselves are soft and lack shape support.

[0003] This irregular stacking method requires specialized staff to organize and align the stacks in subsequent processes, which not only greatly increases labor costs but also limits the overall production line's turnover speed.

[0004] With the upgrading of bag making equipment technology, production efficiency has been significantly improved. The existing manual or semi-automatic material collection methods have become a bottleneck restricting the increase in production capacity, resulting in extremely high labor intensity for workers and easy damage or contamination of packaging bags due to fatigue, making it difficult to meet the needs of modern high-speed production. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to overcome the shortcomings of existing technologies, such as messy packaging bag collection and reliance on manual sorting, and to provide a packaging bag collection device with a high degree of automation and neat stacking.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a packaging bag receiving device, comprising a conveyor belt, a claw arm transferring mechanism, and a stacking receiving mechanism. The conveyor belt is used to transport the slit packaging bags along the conveying direction; the claw arm transferring mechanism is used to adsorb and transfer the packaging bags on the conveyor belt; and the stacking receiving mechanism is used to receive the packaging bags transferred by the claw arm transferring mechanism and stack them neatly.

[0007] The conveyor belt includes a central conveyor belt and side conveyor belts distributed on both sides of the central conveyor belt. There is a gap between the side conveyor belts and the central conveyor belt for gripping and passing through. Both are driven by the first servo motor to ensure that the packaging bag remains stable and suspended at the bottom during the conveying process, making it easy to grip.

[0008] The claw arm material handling mechanism includes a rotating shaft and at least one set of gripping units mounted on the rotating shaft. Each gripping unit includes at least two suction claw arms evenly distributed around the rotating shaft. The suction claw arms are hollow and have suction holes on their peripheral walls. The rotating shaft is driven by a second servo motor, which rotates the suction claw arms through the gap to pick up the packaging bags. Through rotary gripping, continuous and uninterrupted material picking and unloading actions are achieved.

[0009] The stacking and receiving mechanism includes a chain driven by a third servo motor, on which multiple receiving components are evenly distributed. Each receiving component includes a flat plate and several guide rods fixed on the flat plate, forming a receiving slot for stacking packaging bags. The stepping motion of the chain automates the process of changing materials when the slot is full and positioning them when empty.

[0010] As a further optimization of this utility model, the number of gripping units is two sets, which are respectively set on two synchronously rotating turntables. The turntables are fixed on the rotating shaft, and the two ends of the suction claw arms are respectively connected to the two turntables to form a stable frame structure, ensuring that the force is even when adsorbing the packaging bag and preventing the packaging bag from wrinkling.

[0011] Preferably, the width of the plate is smaller than the gap between the two turntables, so that the suction claw arm can smoothly carry the packaging bag into the receiving trough for release.

[0012] Preferably, the suction claw arm is square-shaped, with several suction holes on one side. The connecting end of the suction claw arm is connected to the air pump through a solenoid valve. The precise control of the solenoid valve ensures the timeliness of the adsorption and release actions.

[0013] Preferably, a guide rail is provided above the chain along the straight conveying path, and a slider that cooperates with the guide rail is provided on the bottom of the flat plate of the receiving component to improve the stability of the receiving component at the receiving position.

[0014] Preferably, the first servo motor, the second servo motor, and the third servo motor are all servo motors, and the action timing is linked and controlled by a PLC control system to ensure that the mechanisms work together and the cycle time is precise.

[0015] The beneficial effects of this utility model are:

[0016] 1. Through the gap design between the side conveyor belt and the middle conveyor belt, combined with the rotating suction claw arm, flexible packaging bags can be smoothly adsorbed from the bottom, solving the problems of soft packaging materials being difficult to grasp and easily deformed.

[0017] 2. The claw arm material transfer mechanism works in conjunction with the chain conveyor of the stacking and receiving mechanism to achieve full automation of the packaging bag from conveying to stacking, without the need for manual intervention, and with high stacking neatness.

[0018] 3. Multiple sets of material receiving components can be switched in a cycle, enabling continuous material receiving without stopping the machine, which greatly improves production efficiency and reduces the labor intensity of workers.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a specific embodiment of the present utility model;

[0021] Figure 2 This is a state diagram of the conveyor belt in a specific embodiment of this utility model;

[0022] Figure 3 This is a perspective view of the claw arm material transfer mechanism in a specific embodiment of this utility model;

[0023] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 100, conveyor belt; 110, intermediate conveyor belt; 120, side conveyor belt; 200, claw arm material transfer mechanism; 210, rotating shaft; 220, suction claw arm; 240, turntable; 300, stacking and receiving mechanism; 320, chain; 330, receiving assembly; 331, plate; 332, guide rod. Detailed Implementation

[0025] The present invention will be described in detail below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] like Figure 1 — Figure 4 As shown, in this embodiment, a packaging bag receiving device mainly consists of a conveyor belt 100, a claw arm material transfer mechanism 200, and a stacking receiving mechanism 300.

[0027] Conveyor belt 100 includes a central conveyor belt 110 and side conveyor belts 120 distributed on both sides of the central conveyor belt 110. A small gap exists between the side conveyor belts 120 and the central conveyor belt 110, slightly larger than the thickness of the suction claw arm 220. The side conveyor belts 120 and the central conveyor belt 110 are driven by the same first servo motor to ensure synchronized conveying speeds. The slit packaging bags are laid flat on the three conveyor belts and conveyed forward.

[0028] The claw arm material handling mechanism 200 includes a horizontally arranged rotating shaft 210, with synchronously rotating turntables 240 fixed at both ends of the shaft 210. Four sets of suction claw arms 220 are evenly distributed around the circumference of each turntable 240. Each set of suction claw arms 220 is square-shaped and hollow inside. Several suction holes are opened on one side of each suction claw arm 220, and its internal channel is connected to a vacuum pump via pipes and a solenoid valve. The rotating shaft 210 is driven by a second servo motor. When the packaging bag is conveyed to the receiving area at the end of the conveyor belt 100, the rotating suction claw arm 220 passes precisely through the gap between the side conveyor belt 120 and the middle conveyor belt 110. At this time, the solenoid valve opens, and the suction claw arm 220 smoothly and firmly adheres and fixes the packaging bag through the suction holes.

[0029] The stacking and receiving mechanism 300 includes a chain 320 arranged in a circular manner, which is driven by a third servo motor in conjunction with a sprocket. The chain 320 runs along a straight conveying path above it, and several receiving assemblies 330 are evenly distributed on the chain 320. Each receiving assembly 330 includes a plate 331 mounted on the chain 320, on which several vertically upward guide rods 332 are fixed, forming a receiving trough with an open top. Notably, the width of the plate 331 is smaller than the gap between the two turntables 240 to ensure that the suction claw arm 220 can place the packaging bag into the receiving trough without obstruction.

[0030] The working principle is as follows:

[0031] After being cut, the packaging bags are conveyed along conveyor belt 100. When they reach the receiving area, the first servo motor pauses or slows down, and the second servo motor drives the rotating shaft 210 to rotate. The suction claw arm 220 passes through the gap, picks up the packaging bag, and carries it away from the conveyor belt 100. Subsequently, the suction claw arm 220 rotates 180 degrees to be directly above the stacking and receiving mechanism 300. At this time, the solenoid valve closes, the negative pressure disappears, and the packaging bags fall into the guide rods 332 of the receiving trough. As the number of packaging bags in the receiving trough increases, the third servo motor drives the chain 320 to move one station step by step, moving the full receiving assembly 330 to the end to wait for packaging. At the same time, the empty trough behind it is moved to the receiving position, thereby realizing continuous and efficient automated receiving operations.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A packaging bag receiving device, characterized in that, include: Conveyor belt (100) is used to transport the cut packaging bags along the conveying direction; A claw arm transfer mechanism (200) is used to adsorb and transfer packaging bags on the conveyor belt (100); as well as A stacking receiving mechanism (300) is used to receive and neatly stack the packaging bags transferred by the claw arm transfer mechanism (200). The conveyor belt (100) includes a middle conveyor belt (110) and side conveyor belts (120) distributed on both sides of the middle conveyor belt (110). There is a gap between the side conveyor belts (120) and the middle conveyor belt (110) for gripping and passing through, and both are driven by a first servo motor. The claw arm material transfer mechanism (200) includes a rotating shaft (210) and at least one set of gripping units mounted on the rotating shaft (210). The gripping unit includes at least two suction claw arms (220) evenly distributed on the rotating shaft (210). The suction claw arms (220) are hollow and have suction holes on their peripheral walls. The rotating shaft (210) is driven by a second servo motor, which drives the suction claw arms (220) to rotate through the gap to adsorb the packaging bag. The stacking and receiving mechanism (300) includes a chain (320) driven by a third servo motor. Multiple receiving components (330) are evenly distributed on the chain (320). Each receiving component (330) includes a flat plate (331) and a plurality of guide rods (332) fixed on the flat plate (331). The guide rods (332) form a receiving groove for stacking packaging bags.

2. The packaging bag receiving device according to claim 1, characterized in that: The number of gripping units is two sets, which are respectively set on two synchronously rotating turntables (240). The turntables (240) are fixed on the rotating shaft (210), and the two ends of the suction claw arm (220) are respectively connected to the two turntables (240).

3. The packaging bag receiving device according to claim 2, characterized in that: The width of the plate (331) is smaller than the gap between the two turntables (240) so that the suction claw arm (220) can smoothly carry the packaging bag into the receiving trough.

4. The packaging bag receiving device according to claim 1, characterized in that: The suction claw arm (220) is square-shaped, and a number of suction holes are provided on one side. The connecting end of the suction claw arm (220) is connected to the air pump through a solenoid valve. The solenoid valve is used to control the on and off of the suction negative pressure.

5. The packaging bag receiving device according to claim 1, characterized in that: A guide rail is provided above the chain (320) along a straight conveying path, and a slider that cooperates with the guide rail is provided at the bottom of the flat plate (331) of the receiving assembly (330).

6. The packaging bag receiving device according to claim 1, characterized in that: The first servo motor, the second servo motor, and the third servo motor are all servo motors, and their action timing is linked and controlled by a PLC control system.

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