Lifting device for batch packaging of paper bags and stacker crane

Abstract

The utility model discloses a lifting device for batch packaging of paper bags and a stacker crane, and belongs to the technical field of paper bag packaging. The stacker crane comprises a mounting seat; a lifting mechanism; the power mechanism comprises a transmission assembly, a first driving part and a second driving part; and an opening and closing mechanism. According to the lifting device for batch packaging of the paper bags, the crank is driven by the servo motor, accurate lifting of the lifting mechanism is achieved, the bracket automatically lifts the paper bags to the position above the movable baffle to be stacked, the risk that a traditional mechanical arm is unstable in grabbing and irregular in stacking is eliminated in the process, the stacking efficiency is remarkably improved, operation and control are simple and easy, and the practicability is high. And the stacking machine stacks the paper bags through the lifting mechanism, then the opening and closing plate bears the stacked paper bags and lifts the paper bags to a packaging working area, only several driving pieces need to be controlled in the process, control is conducted through an automatic program, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper bag packaging, and particularly relates to a lifting device and a palletizer for batch packing of paper bags. Background Art

[0002] In modern packaging industry, as a common packaging material, paper bags are widely used in many industries such as food, chemical industry, building materials, etc. With the increasing market demand, the production and packaging efficiency of paper bags need to be improved urgently. The traditional paper bag packing method mostly relies on manual operation, which has problems such as low efficiency, high labor intensity, and unstable packaging. Therefore, it is particularly important to develop an efficient and automated paper bag packing equipment.

[0003] The existing paper bag packing equipment mostly adopts a single mechanical structure. Usually, the paper bags are transported to the packing position by simple clamping and handling methods. This design limits the flexibility and adaptability of the equipment to a certain extent. Especially when dealing with a large number of paper bags with multiple specifications, it is difficult to ensure the efficiency and accuracy. There are also problems such as unstable grasping and uneven stacking when handling paper bags. In addition, when the traditional equipment stacks and packs paper bags, it often requires a complex mechanical transmission system, resulting in high maintenance and operation costs of the equipment. To solve the above problems, we propose a lifting device and a palletizer for batch packing of paper bags. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lifting device for batch packing of paper bags, aiming to solve the problems of poor flexibility and adaptability, low efficiency and accuracy of the existing packing equipment, and unstable grasping and uneven stacking when handling paper bags.

[0005] To solve the above technical problems, the utility model provides a lifting device for batch packing of paper bags, including a mounting seat;

[0006] A lifting mechanism, which is arranged above the mounting seat and is used for stacking paper bags;

[0007] A power mechanism, which includes a transmission component arranged on one side of the lifting mechanism, a first driving part arranged on one side of the transmission component, and a second driving part arranged on one side of the mounting seat.

[0008] Preferably, the lifting mechanism includes a bracket, a plurality of support rods arranged at the bottom of the bracket, and a lifting member arranged at the bottom of the support rods;

[0009] The lifting member includes a lifting shaft arranged on one side thereof;

[0010] The lifting shaft is driven by the first driving part.

[0011] Preferably, the lifting mechanism further includes a pair of movable baffles, which are fixed in the working area and include a movable shaft and a spring provided on one side of the movable shaft.

[0012] Preferably, the transmission assembly includes a connecting rod and a crank provided on one side of the connecting rod;

[0013] The connecting rod is connected to the lifting shaft through a spherical plain bearing.

[0014] Preferably, the first driving member includes a servo motor and a reduction gearbox provided on one side of the servo motor;

[0015] The output shaft of the reduction gearbox is fixed to the crank.

[0016] Preferably, the second driving member is a driving motor, which is fixedly installed at the bottom of the mounting seat.

[0017] The present utility model further provides a palletizer, which includes a lifting device for batch packing of paper bags; and an opening and closing mechanism, which is arranged on one side of the mounting seat and is used for transporting the palletized paper bags to a high place for packing, and passing around the packing place through opening and closing and returning to the original position;

[0018] A third driving member, which includes a cylinder and a cylinder arm provided on one side of the cylinder.

[0019] Preferably, the opening and closing mechanism includes a middle connecting plate, a first tail connecting plate provided on one side of the middle connecting plate, a second tail connecting plate provided on the opposite side of the middle connecting plate, a connecting member provided on one side of the first tail connecting plate and the second tail connecting plate, a swing arm provided above the connecting member, and an opening and closing plate provided at one end of the swing arm.

[0020] Preferably, the connecting member includes a first pin hole and a second pin hole provided below the first pin hole;

[0021] The middle connecting plate and the first pin hole are connected to the mounting seat through a pin;

[0022] The middle connecting plate is connected to the first tail connecting plate and the second tail connecting plate through a pin;

[0023] The tail connecting plate is connected to the second pin hole through a pin.

[0024] Preferably, the cylinder arm is connected to the second tail connecting plate through a crank shaft.

[0025] Compared with the prior art, the beneficial effects of the present utility model are:

[0026] 1. The paper bag batch packing lifting device of the present utility model drives a crank through a servo motor to achieve precise lifting of the lifting mechanism. The bracket automatically lifts the paper bags above the movable baffle for stacking, without manual or robotic arm contact. This process eliminates the risks of unstable grasping and uneven stacking, significantly improves the stacking efficiency, and has simple and easy operation control, thus enhancing the production efficiency.

[0027] 2. The palletizer of the present utility model first stacks the paper bags through the lifting mechanism, and then the stacked paper bags are supported by the opening and closing plate and lifted to the packing work area by the driving motor. After packing, the opening and closing mechanism opens and closes to bypass obstacles and return to the original position. This process only requires controlling several driving parts and does not require manual intervention. It is controlled through an automated program, greatly improving the production efficiency. Description of the Drawings

[0028] Figure 1 is a side view of a lifting device for batch packing of paper bags provided by the present utility model;

[0029] Figure 2 is a schematic structural diagram of a palletizer for batch packing of paper bags provided by the present utility model;

[0030] Figure 3 is a schematic structural diagram of a crank in a lifting device for batch packing of paper bags provided by the present utility model;

[0031] Figure 4 is a front view of a palletizer for batch packing of paper bags provided by the present utility model;

[0032] Figure 5 is a schematic diagram of the working principle of a movable baffle in a lifting device for batch packing of paper bags provided by the present utility model;

[0033] In the figure: 1, mounting seat; 2, lifting mechanism; 201, bracket; 202, support rod; 203, lifting member; 203a, lifting shaft; 203b, spherical plain bearing; 204, movable baffle; 204a, movable shaft; 204b, spring; 3, power mechanism; 301, transmission assembly; 301a, connecting rod; 301b, crank; 302, first driving member; 302a, servo motor; 302b, reduction gearbox; 303, second driving member; 304, third driving member; 304a, cylinder; 304b, cylinder arm; 304c, crankshaft; 4, opening and closing mechanism; 401, middle connecting plate; 402, first tail connecting plate; 403, second tail connecting plate; 404, connecting member; 404a, first pin hole; 404b, second pin hole; 405, swing arm; 406, opening and closing plate. Detailed Embodiments

[0034] The following is a further detailed description of the present utility model in conjunction with the accompanying drawings and specific embodiments. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0037] Embodiment 1

[0038] This embodiment provides a lifting device for batch packing of paper bags. Please refer to Figures 1 to 4, including a mounting base 1; a lifting mechanism 2, which is arranged above the mounting base 1 and is used for palletizing paper bags; a power mechanism 3, which includes a transmission assembly 301 arranged on one side of the lifting mechanism 2, a first driving member 302 arranged on one side of the transmission assembly 301, and a second driving member 303 arranged on one side of the mounting base 1; the lifting mechanism 2 includes a bracket 201, a plurality of support rods 202 arranged at the bottom of the bracket 201, and a lifting member 203 arranged at the bottom of the support rods 202; the lifting member 203 includes a lifting shaft 203a arranged on one side thereof; the lifting shaft 203a is driven by the first driving member 302; the lifting mechanism 2 further includes a pair of movable baffles 204, the movable baffles 204 are fixed in the working area, and it includes a movable shaft 204a and a spring 204b arranged on one side of the movable shaft 204.

[0039] The transmission assembly 301 includes a connecting rod 301a and a crank 301b arranged on one side of the connecting rod 301a; the connecting rod 301a is connected to the lifting shaft 203a through a spherical plain bearing 203b; the first driving member 302 includes a servo motor 302a and a reduction gearbox 302b arranged on one side of the servo motor 302a; the output shaft of the reduction gearbox 302b is fixed to the crank 301b; the output shaft of the reduction gearbox 302b is fixed to the crank 302c; the second driving member 303 is a driving motor and is fixedly installed at the bottom of the mounting base 1.

[0040] It should be noted that the first driving member 302 is installed at the bottom of the reduction gearbox 302b. This is mainly because there is a reduction gear set in the reduction gearbox 302b, resulting in a large mass of the gearbox. Installing the driving member at its bottom can ensure the stability of lifting to the greatest extent.

[0041] Preferably, there are two support rods 202, which are respectively fixedly installed on the lifting member 203 and inserted into the mounting base 1. When the crank 301b drives the connecting rod 301a to push the lifting member 203 to lift through the lifting shaft 203a, it will drive the support rods 202 and the bracket 201 to lift synchronously.

[0042] Preferably, the servo motor 302a drives the bracket 201 to lift through the crank and connecting rod structure of the crank 301b and the connecting rod 301a for palletizing paper bags.

[0043] Preferably, the first part is that the servo motor 302a drives the bracket 201 to lift through the crank and connecting rod structure of the crank 301b and the connecting rod 301a for palletizing paper bags.

[0044] The specific process is as follows: The paper bags are successively sent above the bracket 201 through the conveyor belt. The servo motor 302a is started. After being decelerated by the reduction gearbox 301b, the servo motor 302a drives the crank 301b to rotate. The crank 301b drives the connecting rod 301a to traction the lifting member 203 to lift and lower. By controlling the forward and reverse rotation of the servo motor 302a, the lifting and lowering of the lifting member 203 can be controlled. The lifting member 203 lifts or lowers the height of the bracket 201 through the two side support rods 202. When the bracket 201 is lifted and lowered, the bracket 201 will drive the paper bags above it to lift and lower accordingly. There are opposite movable baffles 204 on both sides of the bracket. The movable baffles 204 can move within a small range around the movable shaft 204a. Springs 204b are fixedly installed at the bottom of both sides of the movable baffle 204. When the lower bracket 201 passes by, the movable baffle 204 is pushed open against the spring force. One side of the movable baffle 204 is fixed to the workbench. In the stable state, the distance between the baffles is slightly smaller than the width of the paper bag, and in the opened state, it is larger than the width of the paper bag. During the rising process of the bracket 201, it will push open the two side baffles, making its width larger than the paper bag. The paper bag can rise with the bracket 201. When the bracket 201 descends, the two side baffles return to the normal state. At this time, since the width of the paper bag is smaller than the distance between the baffles, it will be stuck above the baffles and cannot fall. When the next round of paper bags is transported, it will be below the previous round of paper bags. When lifting, all the paper bags will be lifted together and stuck above the baffles at the same time. This process is repeated continuously, thus completing the process of paper bag palletizing.

[0045] It drives the whole device to rise by the way of motor + lead screw, but does not include the above-mentioned movable baffle 204. The movable baffle 204 is fixedly installed on one side of the housing of the mechanism of the present invention. Before driving the device to rise through this part, the bracket 201 needs to be lowered to the lowest position first. Then, when the whole device rises, the combined opening and closing plate 406 and the bracket 201 pass through the movable baffle 204 and gradually contact and support the palletized paper bags, driving the paper bags to be lifted to a high place for packing.

[0046] In summary, the lifting device for batch packing of paper bags of the present utility model drives the crank through a servo motor to realize the precise lifting of the lifting mechanism. The bracket automatically lifts the paper bags above the movable baffle for palletizing without manual or robotic arm contact. This process eliminates the risks of unstable grasping and uneven stacking, significantly improves the palletizing efficiency, and the operation control is simple and easy, thus improving the production efficiency.

[0047] Embodiment 2

[0048] This embodiment provides a palletizing machine. Please refer to Figures 1 to 5, including a lifting device for batch packing of paper bags; and, an opening and closing mechanism 4, the opening and closing mechanism 4 is arranged on one side of the mounting seat 1, for transporting the stacked paper bags to a high place for packing, and passing around the packing place through opening and closing and returning to the original position; a third driving member 304, the third driving member 304 includes a cylinder 304a and a cylinder arm 304b arranged on one side of the cylinder 304a.

[0049] The opening and closing mechanism 4 includes a middle connecting plate 401, a first tail connecting plate 402 arranged on one side of the middle connecting plate 401, a second tail connecting plate 403 arranged on the opposite side of the middle connecting plate 401, a connecting member 404 arranged on one side of the first tail connecting plate 402 and the second tail connecting plate 403, a swing arm 405 arranged above the connecting member 404, and an opening and closing plate 406 arranged at one end of the swing arm 405; the connecting member 404 includes a first pin hole 404a and a second pin hole 404b arranged below the first pin hole 404a; the middle connecting plate 401 and the first pin hole 404a are connected to the mounting seat 1 through a pin; the middle connecting plate 401 is connected to the first tail connecting plate 402 and the second tail connecting plate 403 through a pin; the tail connecting plate 402 is connected to the second pin hole 404b through a pin; the cylinder arm 304b is connected to the second tail connecting plate 403 through a crankshaft 304c.

[0050] Preferably, the third part is that the cylinder 304a drives the swing arm 405 to drive the opening and closing plate 406 to open and close through a series of link transmissions, so that the opening and closing plate 406 bypasses the movable baffle 204 to complete the reset.

[0051] The specific process is as follows: In this link mechanism, the mounting seat 1 is fixed and has a constant position. The fixed shaft is the central axis located at the first pin hole 404a and the central axis of the mounting seat. When the cylinder 304a intakes or discharges air through the cylinder hole, the cylinder arm 304b will extend out or retract into the cylinder 304a accordingly. As Figure 5 shown is the fully extended state of the cylinder arm 304b. When contracting, the crankshaft 304c rotates around the second pin hole 404b. At the same time, since the position of the middle connecting plate 401 and the mounting seat 1 is relatively fixed, the whole mounting seat 1 will vertically slide on the lifting member 203a to adjust the position to adapt to the contraction of the cylinder arm 403b. At this time, the opening and closing plate 406 will be separated, and the double swing arms 405 will extend, realizing the opening function of the opening and closing mechanism 3. On the contrary, when the cylinder arm 304b extends, the swing arm 405 will be combined, realizing the closing function, thereby realizing the opening and closing of the opening and closing mechanism 4. After opening, the opening and closing plate 406 can bypass the movable baffle 204 to complete the reset.

[0052] Preferably, the above-mentioned several driving methods are not unique. In other embodiments, a hydraulic device can also be used for lifting, and an electric telescopic rod can be used to replace the cylinder.

[0053] Preferably, the three driving methods are jointly controlled by an automated program to control the working time of each driving part. For a complete working process, only by transporting the paper bags to the bracket 201 through the conveyor belt, the entire process of palletizing and packing can be automatically completed.

[0054] Usage method: Step (A): Palletizing of paper bags;

[0055] Step (A1): The paper bags are successively sent above the bracket 201 through the conveyor belt. The servo motor 302a is started. After being decelerated by the reduction gearbox 302b, the servo motor 302a drives the crank c to rotate. The crank 302c drives the connecting rod 302d to pull the lifting member 203 to lift and lower. By controlling the forward and reverse rotation of the servo motor 302a, the lifting of the lifting member 203 can be controlled;

[0056] Step (A2): The lifting member raises or lowers the height of the bracket 201 through the two side support rods 202. When the bracket 201 is lifted or lowered, the paper bags above the bracket 201 are lifted or lowered accordingly. There are relative movable baffles 204 on both sides of the bracket. The movable range of the baffle 204 is very small. The distance between the baffles in its stable state is slightly smaller than the width of the paper bag, and it is larger than the width of the paper bag when it is in the expanded state. During the rising process of the bracket 201, the two side baffles will be pushed open, making its width larger than the paper bag, and the paper bag can rise with the bracket 201. When the bracket 201 descends, the two side baffles return to the normal state. At this time, the paper bag will be stuck above the baffle because its width is greater than the distance between the baffles and cannot fall. This process is repeated continuously, and thus the process of palletizing the paper bags is completed;

[0057] Step (B): Packing the palletized paper bags;

[0058] Step (B1): In step A, the cylinder 304a is in the retracted state, that is, the cylinder arm 304b is still inside the cylinder and has not extended. At this time, the two side swing arms 405 are separated and open. When the paper bags have been palletized to a sufficient height, the cylinder 304a is started. The cylinder 304 drives the cylinder arm 304b to extend. Through a series of link transmissions, the swing arm 405 drives the opening and closing plate 406 to merge towards the center with the mounting seat 1 as the center, and the two side opening and closing plates 406 close together to jointly support the palletized paper bags;

[0059] Step (B2): The second driving part 303 is started, which can lift the height of the overall mechanism. The palletized paper bags will also be lifted to a high place by pushing open the movable baffle 204 under the support of the opening and closing plate 406. The high place is the paper bag packing operation area. A packing machine is used to pack the paper bags here;

[0060] Step (C): Reset the mechanism;

[0061] Step (C1): After the paper bag packaging is completed, the opening and closing plate 406 is still in a closed state and is located in a high packaging operation area. At this time, if it is directly reset, the opening and closing plate 406 will be stuck because the spacing between the two side baffles below is smaller than the width of the opening and closing plate 406. Therefore, it is necessary to start the cylinder 304a to first open the swing arms 405 on both sides; then descend until it bypasses the plate opening and then retract the swing arms 405 to restore the opening and closing plate 406 to its initial position. At this point, the single paper bag stacking and packaging process is completed and the cycle can be repeated.

[0062] In summary, the palletizer of the utility model firstly stacks the paper bags by means of a lifting mechanism, and then the stacked paper bags are supported by an opening and closing plate and lifted to the packing work area by a driving motor. After the packing is completed, the opening and closing mechanism opens and closes to bypass obstacles and return to the original position. This process only requires the control of several driving parts, without manual intervention, and is controlled by an automated program, thereby greatly improving production efficiency. In addition, transporting paper bags by lifting rather than by means of a transmission mechanical claw can also effectively solve the problems of unstable grasping and uneven stacking caused by grasping, thereby ensuring the appearance and packaging quality of the final product.

[0063] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A lifting device for batch packaging of paper bags, characterized in that: include Mounting seat (1); A lifting mechanism (2), the lifting mechanism (2) being arranged above the mounting seat (1) and used for stacking paper bags; A power mechanism (3), the power mechanism (3) comprising a transmission assembly (301) arranged on one side of the lifting mechanism (2), a first driving member (302) arranged on one side of the transmission assembly (301), and a second driving member (303) arranged on one side of the mounting seat (1).

2. A lifting device for batch packaging of paper bags as claimed in claim 1, characterized in that: The lifting mechanism (2) comprises a bracket (201), a plurality of support rods (202) arranged at the bottom of the bracket (201), and a lifting member (203) arranged at the bottom of the support rods (202); The lifting member (203) comprises a lifting shaft (203a) arranged on one side thereof; The lifting shaft (203a) is driven by the first driving member (302).

3. A lifting device for batch packaging of paper bags as claimed in claim 2, characterized in that: The lifting mechanism (2) further comprises a pair of movable baffles (204), wherein the movable baffles (204) are fixed in the working area and comprise a movable shaft (204a) and a spring (204b) arranged on one side of the movable shaft (204a).

4. A lifting device for batch packaging of paper bags as claimed in claim 3, characterized in that: The transmission assembly (301) comprises a connecting rod (301a) and a crank (301b) arranged on one side of the connecting rod (301a); The connecting rod (301a) is connected to the lifting shaft (203a) via a joint bearing (203b).

5. A lifting device for batch packaging of paper bags as claimed in claim 4, characterized in that: The first driving member (302) comprises a servo motor (302a) and a reduction gear box (302b) arranged on one side of the servo motor (302a); The output shaft of the reduction gear box (302b) is fixed to the crank (301b).

6. A lifting device for batch packaging of paper bags as claimed in claim 1, characterized in that: The second driving member (303) is a driving motor, which is fixedly mounted on the bottom of the mounting seat (1).

7. A palletizer, characterized in that: comprising the lifting device according to any one of claims 1 to 6; and An opening and closing mechanism (4), the opening and closing mechanism (4) being arranged on one side of the mounting seat (1) and used for transporting the stacked paper bags to a high place for packaging, and returning the paper bags to their original positions after opening and closing and bypassing the packaging place; A third driving member (304), the third driving member (304) comprising a cylinder (304a) and a cylinder arm (304b) arranged on one side of the cylinder (304a).

8. The palletizer according to claim 7, characterized in that: The opening and closing mechanism (4) comprises a middle connecting plate (401), a first tail connecting plate (402) arranged on one side of the middle connecting plate (401), a second tail connecting plate (403) arranged on the other side of the middle connecting plate (401), a connecting piece (404) arranged on one side of the first tail connecting plate (402) and the second tail connecting plate (403), a swing arm (405) arranged above the connecting piece (404), and an opening and closing plate (406) arranged at one end of the swing arm (405).

9. The palletizer according to claim 8, characterized in that: The connecting member (404) comprises a first pin hole (404a) and a second pin hole (404b) arranged below the first pin hole (404a); The middle connecting plate (401) and the first pin hole (404a) are connected to the mounting seat (1) via an axle pin; The middle connecting plate (401) is connected to the first tail connecting plate (402) and the second tail connecting plate (403) via an axle pin; The tail connection plate (402) and the second pin hole (404b) are connected via an axle pin.

10. The palletizer according to claim 9, characterized in that: The cylinder arm (304b) is connected to the second tail connecting plate (403) via a crank shaft (304c).

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