Stacking lifting mechanism on carton production line

Abstract

A stacking lifting mechanism on a carton production line comprises a fixing frame, a lifting assembly and a conveying assembly, the conveying assembly is installed on the top of the fixing frame, the lifting assembly is installed on the inner side of the fixing frame, and the conveying assembly comprises a plurality of horizontally-arranged conveying units; the multiple sets of conveying units are evenly arranged at intervals in the direction perpendicular to the conveying direction. The lifting assembly comprises a lifting mechanism installed on the fixing frame, a lifting frame connected to the lifting mechanism and a plurality of paper supporting frames fixed to the lifting frame, the multiple paper supporting frames are evenly arranged at intervals in the direction perpendicular to the conveying direction, and each paper supporting frame corresponds to the interval between the multiple conveying units. The stacking and lifting mechanism can replace the paper receiving and feeding process, the labor cost is saved, and the production efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box production equipment technology, specifically to a stacking and lifting mechanism on a cardboard box production line. Background Technology

[0002] In the production and processing of cardboard boxes, after a series of processes such as die-cutting, forming, and stapling or gluing, the products are transported to the stacking machine at the end of the packaging production line for neat stacking. This step is crucial for subsequent packaging, transportation, and storage, ensuring that the cardboard boxes can be packed in a compact and stable manner, thereby saving space and protecting the contents from damage.

[0003] The stacking machines widely used in the current market can achieve the function of continuously stacking multiple sets of cardboard boxes. However, the transfer of cardboard between the stacking machine and the packing machine is done by workers using trolleys. The workers place the trolleys under the unloading section of the stacking machine. After the multiple stacks of cardboard boxes are stacked and aligned, they fall onto the trolleys and are then transported to the packing machine to pack the stacks of cardboard boxes. The whole process brings a huge workload to the workers and also affects the efficiency of cardboard box packaging. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a stacking and lifting mechanism for a carton production line.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A stacking and lifting mechanism for a carton production line includes a fixed frame, a lifting assembly, and a conveying assembly. The conveying assembly is installed on top of the fixed frame, and the lifting assembly is installed inside the fixed frame. The conveying assembly includes multiple sets of horizontally arranged conveying units, which are evenly spaced along a direction perpendicular to the conveying direction. The top planes of the multiple conveying units form a conveying surface for conveying carton paperboard. The lifting assembly includes a lifting mechanism installed on the fixed frame, a lifting frame connected to the lifting mechanism, and multiple paper support frames fixed on the lifting frame. The multiple paper support frames are evenly spaced along a direction perpendicular to the conveying direction, and the interval between each paper support frame and multiple conveying units corresponds. When the lifting mechanism lifts or lowers, it drives the lifting frame to move up and down, and the lifting frame drives the paper support frames to rise or fall in the gaps between the conveying units. Each paper support frame has a support rod on its top, and the top planes of the multiple support rods form a support surface for stacking carton paperboard.

[0007] In this invention, the lifting mechanism includes a linkage shaft rotatably mounted on the lower part of the fixed frame, a first sprocket rotatably mounted on the upper part of the fixed frame, and a first drive motor fixedly mounted on the fixed frame. Two linkage shafts are provided, respectively located at the front and rear ends of the lower part of the fixed frame. Four first sprockets are provided, arranged in pairs facing each other and divided into two groups. The two groups of first sprockets are respectively positioned above the two linkage shafts. Rotating seats are rotatably fitted at both ends of the linkage shaft, and the rotating seats are fixedly connected to the fixed frame. Second sprockets are also provided at the positions of the rotating seats at both ends of the linkage shaft. The first and second sprockets are driven by a lifting chain. One side of the lifting chain is connected to the lifting frame. The first drive motor drives the linkage shaft to rotate, thereby driving the second sprocket to rotate. When the second sprocket rotates, it cooperates with the first sprocket to drive the lifting chain to rotate, and the lifting chain then drives the lifting frame to rise or fall.

[0008] Furthermore, one end of each of the two linkage shafts passes through the fixed frame and extends outward. The extended end of each linkage shaft is provided with a third sprocket. The third sprockets on the two linkage shafts are connected by a transmission chain to achieve synchronous rotation.

[0009] Furthermore, the output end of the first drive motor is provided with a fourth sprocket, and the transmission chain passes around the third sprocket and cooperates with the fourth sprocket. The first drive motor drives the transmission chain to rotate through the fourth sprocket.

[0010] Furthermore, a fifth sprocket is provided above the third sprocket on the side near the first drive motor. The fifth sprocket is rotatably mounted on the fixed frame. The transmission chain passes around the third sprocket on the side near the first drive motor, then passes around the fifth sprocket in the opposite direction, and then passes around the fourth sprocket.

[0011] In this utility model, the conveying unit includes two pulleys installed at both ends of the top of the fixed frame, a conveyor belt sleeved on the pulleys, and a support slide rod supported on the top of the inner side of the conveyor belt. The top of the fixed frame is provided with a support frame, the two pulleys are respectively located at both ends of the support frame, and the support slide rod overlaps the top of the support frame. When the cardboard box falls onto the conveying surface, it is supported by the support slide rod.

[0012] Furthermore, the pulleys at both ends of the plurality of conveying units are connected by two rotating shafts, and the rotating shafts at both ends are fixed on the support frame by a connecting frame, and the rotating shafts are rotatably engaged with the connecting frame; the conveying assembly also includes a second drive motor for driving one of the rotating shafts to rotate, the second drive motor is mounted on the fixing frame and the drive end is connected to one of the rotating shafts by a transmission belt.

[0013] This utility model has the following advantages and beneficial effects:

[0014] During stacking, the lifting mechanism raises the lifting frame, making the supporting surface higher than the conveying surface. After the cardboard boxes are stacked on the supporting surface, the lifting mechanism lowers the lifting frame, making the supporting surface lower than the conveying surface. During this process, the cardboard boxes on the supporting surface are transferred to the conveying surface for transport. After the cardboard boxes are transported, the lifting mechanism raises the lifting frame again, and so on, repeating the paper receiving and feeding operations. This stacking and lifting mechanism can replace the paper receiving and feeding process, which not only saves labor costs but also improves production efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the stacking and lifting mechanism in this embodiment;

[0017] Figure 2 This is a schematic diagram of the lifting component in this embodiment;

[0018] Figure 3 This is a schematic diagram of the conveying unit in this embodiment;

[0019] Figure 4 This is a schematic diagram of the lifting mechanism in this embodiment. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. However, this utility model is not limited to the following embodiments.

[0021] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] like Figures 1 to 4 As shown, this embodiment discloses a stacking and lifting mechanism for a carton production line, including a fixed frame 1, a lifting assembly 2, and a conveying assembly 3. The conveying assembly 3 is installed on the top of the fixed frame 1, and the lifting assembly 2 is installed on the inner side of the fixed frame 1. The conveying assembly 3 includes multiple sets of horizontally arranged conveying units 30, which are evenly spaced along a direction perpendicular to the conveying direction. The top plane of the multiple conveying units 30 forms a conveying surface for conveying carton paperboard. The lifting assembly 2 includes a lifting mechanism 21 installed on the fixed frame 1, a lifting frame 22 connected to the lifting mechanism 21, and multiple paper support frames 23 fixed on the lifting frame 22. The multiple paper support frames 23 are evenly spaced along a direction perpendicular to the conveying direction, and the interval between each paper support frame 23 corresponds to the interval between the multiple conveying units 30. When the lifting mechanism 21 lifts or lowers, it drives... The lifting frame 22 moves up and down, and the lifting frame 22 drives the paper support frame 23 to rise or fall in the gap of the conveying unit 30. Specifically, each paper support frame 23 is provided with a support rod 231 at the top. The top plane of multiple support rods 231 forms a support surface for stacking cardboard boxes. During stacking, the lifting mechanism 21 drives the lifting frame 22 to rise, so that the support surface is higher than the conveying surface. After the cardboard boxes are stacked on the support surface, the lifting mechanism 21 drives the lifting frame 22 to fall, so that the support surface is lower than the conveying surface. During the process, the cardboard boxes on the support surface are transferred to the conveying surface for conveying. After the cardboard boxes are sent away, the lifting mechanism 21 drives the lifting frame 22 to rise again. This cycle of receiving and feeding paper is repeated. This stacking lifting mechanism 21 can replace the process of receiving and feeding paper, which not only saves labor costs but also improves production efficiency.

[0024] In this embodiment, the lifting mechanism 21 includes a linkage shaft 211 rotatably mounted on the lower part of the fixed frame 1, a first sprocket 212 rotatably mounted on the upper part of the fixed frame 1, and a first drive motor 213 fixedly mounted on the fixed frame 1. Two linkage shafts 211 are provided and respectively located at the front and rear ends of the lower part of the fixed frame 1. Four first sprockets 212 are provided, with each pair of first sprockets 212 arranged opposite each other to form a group. The two groups of first sprockets 212 are respectively located directly above the two linkage shafts 211. Specifically, rotating seats 210 are rotatably fitted at both ends of the linkage shaft 211. The rotating seat 210 is fixedly connected to the fixed frame 1. The two ends of the linkage shaft 211 are also provided with second sprockets 214 near the rotating seat 210. The first sprocket 212 and the second sprocket 214 are driven by a lifting chain 215. One side of the lifting chain 215 is also connected to the lifting frame 22. The first drive motor 213 drives the linkage shaft 211 to rotate, thereby driving the second sprocket 214 to rotate. When the second sprocket 214 rotates, it drives the lifting chain 215 to rotate by cooperating with the first sprocket 212. The lifting chain 215 then drives the lifting frame 22 to rise or fall.

[0025] Furthermore, one end of each of the two linkage shafts 211 extends outward after passing through the fixed frame 1. The extended end of each linkage shaft 211 is provided with a third sprocket 216. The third sprockets 216 on the two linkage shafts 211 are connected by a transmission chain 217 to achieve synchronous rotation. Thus, only one set of first drive motors 213 needs to be installed to drive the two linkage shafts 211 to rotate simultaneously. Specifically, the output end of the first drive motor 213 is provided with a fourth sprocket 218. The transmission chain 217 passes around the third sprocket 216 and cooperates with the fourth sprocket 218. The first drive motor 213 drives the transmission chain 217 to rotate through the fourth sprocket 218.

[0026] Furthermore, since the transmission chain 217 forms a triangular shape after engaging with the two third sprockets 216 and the fourth sprocket 218, and the first drive motor 213 is installed near one of the third sprockets 216, the envelope angle between the third sprocket 216 near the first drive motor 213 and the transmission chain 217 is too small, making it prone to chain slippage. In order to increase the envelope angle between the transmission chain 217 and the third sprocket 216, a fifth sprocket 219 is provided above the third sprocket 216 near the first drive motor 213. The transmission chain 217 passes around the third sprocket 216 near the first drive motor 213 and then passes around the fifth sprocket 219 in the opposite direction, and then passes around the fourth sprocket 218. This increases the envelope angle and improves transmission stability.

[0027] In this embodiment, the conveying unit 30 includes two pulleys 301 installed at both ends of the top of the fixed frame 1, a conveyor belt 302 sleeved on the pulleys 301, and a support slide bar 303 supported on the top inner side of the conveyor belt 302. Specifically, the top of the fixed frame 1 is provided with a support frame 11, the two pulleys 301 are respectively located at both ends of the support frame 11, and the support slide bar 303 overlaps the top of the support frame 11. When the carton falls onto the conveying surface, it is supported by the support slide bar 303 to prevent collapse.

[0028] Furthermore, the pulleys 301 at both ends of the multiple conveying units 30 are connected by two rotating shafts 304 to achieve synchronous rotation. The rotating shafts 304 at both ends are fixed to the support frame 11 by connecting brackets 305, and the rotating shafts 304 and connecting brackets 305 are rotatably engaged. The conveying assembly 3 also includes a second drive motor 306 for driving one of the rotating shafts 304 to rotate. The second drive motor 306 is mounted on the fixed frame 1 and its drive end is connected to one of the rotating shafts 304 by a transmission belt 307. The second drive motor 306 drives one of the rotating shafts 304 to rotate by the transmission belt 307, thereby driving the pulley 301 at one end of the conveying unit 30 to rotate synchronously.

[0029] In this embodiment, the fixed frame 1 is also provided with a position sensor 12, which is adapted to the lifting frame 22. When the lifting frame 22 is lowered to the bottom of the lifting chain 215 or raised to the top of the lifting chain 215, it sends a stop signal to the first drive motor 213.

[0030] In this embodiment, the fixed frame 1 is also provided with vertically upward extending guide rails 13 on both sides of the lifting frame 22, and the side of the lifting frame 22 is provided with guide wheels 221 that cooperate with the guide rails 13.

[0031] The above description in this specification is merely an illustrative example of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the specific embodiments described or adopt similar methods to replace them, as long as they do not deviate from the content of this specification or exceed the scope defined in the claims, they shall all fall within the protection scope of this invention.

Claims

1. A stacking and lifting mechanism for a cardboard box production line, characterized in that: The system includes a fixed frame (1), a lifting assembly (2), and a conveying assembly (3). The conveying assembly (3) is installed on the top of the fixed frame (1), and the lifting assembly (2) is installed on the inner side of the fixed frame (1). The conveying assembly (3) includes multiple sets of horizontally arranged conveying units (30), which are evenly spaced along a direction perpendicular to the conveying direction. The top plane of the multiple conveying units (30) forms a conveying surface for conveying cardboard boxes. The lifting assembly (2) includes a lifting mechanism (21) installed on the fixed frame (1) and a lifting frame (22) connected to the lifting mechanism (21). The lifting mechanism (21) is used to lift the lifting frame (22) and a plurality of paper holders (23) are fixed on the lifting frame (22). The plurality of paper holders (23) are evenly spaced along the direction perpendicular to the conveying direction, and the spacing between each paper holder (23) corresponds to the spacing between the plurality of conveying units (30). When the lifting mechanism (21) is lifted, it drives the lifting frame (22) to move up and down. The lifting frame (22) drives the paper holders (23) to rise or fall in the gaps of the conveying units (30). Each paper holder (23) is provided with a support rod (231) at the top. The top plane of the plurality of support rods (231) forms a support surface for stacking cardboard boxes.

2. The stacking and lifting mechanism for a cardboard box production line according to claim 1, characterized in that: The lifting mechanism (21) includes a linkage shaft (211) rotatably mounted on the lower part of the fixed frame (1), a first sprocket (212) rotatably mounted on the upper part of the fixed frame (1), and a first drive motor (213) fixedly mounted on the fixed frame (1). There are two linkage shafts (211) respectively located at the front and rear ends of the lower part of the fixed frame (1). There are four first sprockets (212), with each pair of first sprockets (212) arranged opposite each other and divided into two groups. The two groups of first sprockets (212) are respectively located above the two linkage shafts (211). Rotary seats (210) are rotatably fitted at both ends of the linkage shafts (211). The linkage shaft (211) is fixedly connected to the fixed frame (1). At the two ends of the linkage shaft (211) near the rotating seat (210), there is a second sprocket (214). The first sprocket (212) and the second sprocket (214) are driven by a lifting chain (215). One side of the lifting chain (215) is connected to the lifting frame (22). The first drive motor (213) drives the linkage shaft (211) to rotate, thereby driving the second sprocket (214) to rotate. When the second sprocket (214) rotates, it drives the lifting chain (215) to rotate by cooperating with the first sprocket (212). The lifting chain (215) then drives the lifting frame (22) to rise or fall.

3. The stacking and lifting mechanism on a carton production line according to claim 2, characterized in that: One end of each of the two linkage shafts (211) passes through the fixed frame (1) and extends outward. The extended end of each linkage shaft (211) is provided with a third sprocket (216). The third sprockets (216) on the two linkage shafts (211) are connected by a transmission chain (217) to achieve synchronous rotation.

4. The stacking and lifting mechanism on a carton production line according to claim 3, characterized in that: The output end of the first drive motor (213) is provided with a fourth sprocket (218). The transmission chain (217) passes around the third sprocket (216) and then cooperates with the fourth sprocket (218). The first drive motor (213) drives the transmission chain (217) to rotate through the fourth sprocket (218).

5. A stacking and lifting mechanism for a cardboard box production line according to claim 4, characterized in that: A fifth sprocket (219) is provided above the third sprocket (216) on the side close to the first drive motor (213). The fifth sprocket (219) is rotatably mounted on the fixed frame (1). The transmission chain (217) passes around the third sprocket (216) on the side close to the first drive motor (213) and then passes around the fifth sprocket (219) in the opposite direction, and then passes around the fourth sprocket (218).

6. The stacking and lifting mechanism on a carton production line according to claim 1, characterized in that: The conveying unit (30) includes two pulleys (301) installed at both ends of the top of the fixed frame (1), a conveyor belt (302) sleeved on the pulleys (301), and a support slide (303) supported on the top of the inner side of the conveyor belt (302). The fixed frame (1) is provided with a support frame (11) at the top. The two pulleys (301) are located at both ends of the support frame (11). The support slide (303) overlaps the top of the support frame (11). When the cardboard box falls onto the conveying surface, it is supported by the support slide (303).

7. A stacking and lifting mechanism for a carton production line according to claim 6, characterized in that: The pulleys (301) at both ends of the multiple conveying units (30) are connected by two rotating shafts (304). The rotating shafts (304) at both ends are fixed on the support frame (11) by connecting brackets (305). The rotating shafts (304) and the connecting brackets (305) are rotatably engaged. The conveying assembly (3) also includes a second drive motor (306) for driving one of the rotating shafts (304) to rotate. The second drive motor (306) is mounted on the fixing frame (1) and its drive end is connected to one of the rotating shafts (304) by a transmission belt (307).

Images