Automatic blister tray stacking device

Abstract

The utility model relates to the technical field of automatic production, and discloses an automatic tray stacking device for blister trays. The automatic blister tray stacking device comprises a tray conveying line and a tray stacking mechanism arranged at one end of the tray conveying line. The tray conveying line comprises two cross beams which are oppositely arranged in parallel, linkage wheels are rotatably mounted at the two ends of the inner sides of the cross beams correspondingly, and a conveying belt is in transmission connection between the two linkage wheels; a transmission shaft is rotatably connected between the two cross beams, rollers are arranged at the two ends, close to the cross beams, of the transmission shaft respectively, and tensioning wheels capable of being movably adjusted in the X-axis direction are arranged on the cross beams on the left side and the right side of the rollers respectively; the conveying belt surrounds the bottom of the tensioning wheel and the top of the roller in an S shape and is in driving connection with the roller. A driving motor is arranged below the transmission shaft, and the output end of the driving motor is in driving connection with the transmission shaft. By means of the structure, the difficulty of tension degree adjustment and replacement operation of the conveying belt is lowered.

Description

Technical Field

[0001] This utility model relates to the field of automated production technology, specifically to an automatic stacking device for blister trays. Background Technology

[0002] Blister trays, also known as blister trays, are plastic products manufactured using a vacuum forming process. They are often referred to as plastic trays. Made from plastic, these trays undergo a fine processing to create trays with specific grooves. These grooves allow products to be placed properly within them, protecting the products during placement, collection, and transportation, while also enhancing their aesthetic appeal. Furthermore, blister trays play a crucial role in the storage and transportation of products on automated production lines.

[0003] In automated production lines, blister trays are stored in a stacked manner. When blister trays are needed for product storage or transportation, the blister trays are individually separated and transferred to the conveyor line by the tray disassembly mechanism. The conveyor line then moves the blister trays to the designated workstations for product loading and unloading. After the products are loaded and unloaded, the conveyor line continues to move the blister trays to the stacking mechanism for stacking and collection.

[0004] However, most existing blister tray conveyor lines use belt conveyor structures. Over time, the conveyor belts will age, stretch, and loosen, causing the blister trays to shift position and detach from the conveyor line during transport. Furthermore, conventional conveyor line structures are complex and often require disassembling components such as drive wheels and drive shafts to replace the conveyor belt, making the disassembly and replacement of the conveyor belt quite difficult.

[0005] Therefore, there is an urgent need for an automatic blister tray stacking device to solve the above problems. Utility Model Content

[0006] Based on the above, the purpose of this utility model is to provide an automatic stacking device for blister trays, so as to solve the problem of high difficulty in disassembling and replacing the conveyor belt on the blister tray conveyor line in the prior art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model provides an automatic stacking device for blister trays, including a tray conveying line and a stacking mechanism installed at one end of the tray conveying line; the tray conveying line includes two crossbeams arranged in parallel with each other, and each of the inner ends of the crossbeams is rotatably equipped with a linkage wheel, and a conveyor belt is connected between the two linkage wheels.

[0009] A drive shaft is rotatably connected between the two crossbeams. Rollers are respectively installed on both ends of the drive shaft near the crossbeams. Tensioning wheels that can be moved and adjusted along the X-axis are respectively installed on the crossbeams on the left and right sides of the rollers. The conveyor belt is S-shaped and wraps around the bottom of the tensioning wheel and the top of the roller, and is connected to the roller for driving.

[0010] A drive motor is located below the drive shaft, and the output end of the drive motor is connected to the drive shaft.

[0011] As an optional technical solution for an automatic stacking device for blister trays, the crossbeam is located below the roller and has an adjustment groove along the X-axis direction, and the tensioning wheel is movably mounted in the adjustment groove via a connecting shaft.

[0012] As an optional technical solution for an automatic stacking device for blister trays, a driven wheel is mounted on the drive shaft, and a driving wheel is mounted on the output end of the drive motor. The driving wheel and the driven wheel are meshed together.

[0013] As an optional technical solution for an automatic stacking device for blister trays, the stacking mechanism includes a lifting cylinder installed below the two crossbeams, and a lifting plate is installed horizontally at the telescopic end of the lifting cylinder; at least two sets of one-way limiting components are respectively provided on the crossbeams on both sides of the lifting cylinder.

[0014] As an optional technical solution for an automatic stacking device for blister trays, the unidirectional limiting component includes a limiting seat installed on the crossbeam, and a limiting block is rotatably connected to the limiting seat, the limiting block having a “7” shaped structure.

[0015] As an optional technical solution for an automatic blister tray stacking device, the top of the limiting block is chamfered on the side near the limiting seat, and the bottom of the free end of the limiting block is inclined; the limiting seat is provided with a clearance space on the side near the limiting block.

[0016] As an optional technical solution for an automatic stacking device for blister trays, guide members are provided on the crossbeams on both the left and right sides of the unidirectional limiting component, and fiber optic sensors are installed at the upper and lower ends of the guide members respectively.

[0017] As an optional technical solution for an automatic stacking device for blister trays, a positioning cylinder is provided on one side of the crossbeam along the Y-axis direction, and a positioning block is installed on the telescopic end of the positioning cylinder; a vertically upward blocking cylinder is installed below the two crossbeams.

[0018] As an optional technical solution for an automatic stacking device for blister trays, at least two support columns are installed on the outer sides of the two crossbeams respectively.

[0019] The beneficial effects of this utility model are as follows:

[0020] This utility model provides an automatic stacking device for blister trays. The automatic stacking device includes a tray conveyor line and a stacking mechanism installed at one end of the tray conveyor line. The tray conveyor line includes two relatively parallel crossbeams. The inner ends of the crossbeams are rotatably mounted with linkage wheels, and a conveyor belt is connected between the two linkage wheels. A drive shaft is rotatably connected between the two crossbeams. Rollers are installed on the drive shaft near the two ends of the crossbeams. Tensioning wheels that can be adjusted and moved along the X-axis are installed on the crossbeams on the left and right sides of the rollers. The conveyor belt is S-shaped and surrounds the bottom of the tensioning wheel and the top of the roller, driving the roller. A drive motor is installed below the drive shaft, and the output end of the drive motor is connected to the drive shaft.

[0021] In the above structure, the bottom surface of the conveyor belt is pressed against the roller, and the top surface of the conveyor belt on both sides of the roller is pressed against the bottom of the tensioning wheel. The tensioning wheels on both sides of the roller are simultaneously adjusted and fixed towards the roller, so that the conveyor belt can be tightly pressed against the roller. Finally, the drive motor drives the transmission shaft to rotate, thereby driving the two conveyor belts installed on the inner side of the crossbeam to perform synchronous transmission. When the conveyor belt becomes slightly loose due to aging, the tensioning wheel only needs to be adjusted relative to the roller to tighten the conveyor belt. When the conveyor belt needs to be replaced, the tensioning wheels on both sides of the roller are adjusted away from the roller so that the conveyor belt is in a loose state, and the conveyor belt can be removed from the linkage wheel at both ends of the inner side of the crossbeam. This structure is simple and reduces the difficulty of adjusting the tension of the conveyor belt and replacing it. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the automatic blister tray stacking device in this embodiment of the present invention;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a schematic diagram of the automatic blister tray stacking device in this embodiment of the present invention from another perspective;

[0025] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0026] Figure 5 This is an exploded view of the limiting component in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Material tray conveyor line; 10. Crossbeam; 11. Adjustment assembly; 110. Linkage wheel; 111. Conveyor belt; 12. Drive shaft; 120. Roller; 121. Driven wheel; 13. Drive motor; 130. Drive wheel; 14. Tensioning wheel; 140. Adjustment groove; 15. Positioning cylinder; 150. Positioning block; 16. Blocking cylinder; 17. Support column;

[0029] 2. Stacking mechanism; 20. Lifting cylinder; 201. Lifting plate; 21. One-way limit assembly; 210. Limit seat; 211. Limit block; 212. Clearance position; 22. Guide component; 220. Fiber optic sensor;

[0030] 3. Blister tray. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0036] like Figure 1-5 As shown, this utility model provides an automatic stacking device for blister trays. The automatic stacking device includes a tray conveyor line 1 and a stacking mechanism 2 installed at one end of the tray conveyor line 1. The tray conveyor line 1 includes two relatively parallel crossbeams 10. The inner ends of the crossbeams 10 are respectively rotatably mounted with linkage wheels 110. The two linkage wheels 110 are connected by a conveyor belt 111. The two crossbeams 10 are rotatably connected by a drive shaft 12. The two ends of the drive shaft 12 near the crossbeams 10 are respectively mounted with rollers 120. Tensioning wheels 14 that can be moved and adjusted along the X-axis are respectively mounted on the crossbeams 10 on the left and right sides of the rollers 120. The conveyor belt 111 is S-shaped and surrounds the bottom of the tensioning wheel 14 and the top of the roller 120 for driving connection. A drive motor 13 is provided below the drive shaft 12. The output end of the drive motor 13 is connected to the drive shaft 12.

[0037] The present invention provides an automatic stacking device for blister trays. The bottom surface of the conveyor belt 111 presses against the roller 120, and the top surfaces of the conveyor belts 111 located on both sides of the roller 120 press against the bottom of the tensioning rollers 14. The tensioning rollers 14 on both sides of the roller 120 are simultaneously moved closer to the roller 120 and their positions are adjusted and fixed, ensuring that the conveyor belts 111 are tightly pressed against the roller 120. Finally, the drive motor 13 drives the transmission shaft 12 to rotate, thereby driving the two conveyor belts 111 mounted on the inner side of the crossbeam 10 to move simultaneously. The conveyor belt 111 is slightly aged and loose. When the conveyor belt 111 becomes slightly loose, the tensioning wheel 14 can be adjusted to tighten the conveyor belt 111. When the conveyor belt 111 needs to be replaced, the tensioning wheels 14 on both sides of the roller 120 are adjusted away from the roller 120 so that the conveyor belt 111 is in a loose state. Then the conveyor belt 111 can be removed from the linkage wheel 110 at both ends of the inner side of the crossbeam 10. This structure is simple and reduces the difficulty of adjusting the tension of the conveyor belt 111 and replacing it.

[0038] Specifically, such as Figure 1 and Figure 2As shown, adjusting components 11 are installed at the ends of the crossbeams 10. A linkage wheel 110 is adjustablely mounted on the adjusting components 11 via an adjusting screw and is located on the inner side of the crossbeams 10. The tension of the conveyor belt 111 can be adjusted by changing the position of the linkage wheel 110 on the adjusting components 11. Therefore, when the conveyor belt 111 becomes slightly loose due to aging, the tension can be adjusted using the adjusting components 11, further extending the service life of the conveyor belt 111. Furthermore, two support columns 17 are installed on the sides of each of the two crossbeams 10. Of course, more support columns 17 can be installed according to the length of the material conveyor line 1, so that the material conveyor line 1 can be stably installed on the workshop or other workbenches via the support columns 17 for operation.

[0039] In this embodiment, as Figure 3 and Figure 4 As shown, the crossbeam 10 is located below the roller 120 and has an adjustment groove 140 along the X-axis. A connecting shaft is threadedly locked onto the adjustment groove 140, and the tensioning wheel 14 is movably mounted on the adjustment groove 140 via the connecting shaft. The tensioning wheels 14 on both sides of the roller 120 can adjust the distance between themselves and the roller 120 through the adjustment groove 140 to tension and loosen the conveyor belt 111. When the conveyor belt 111 needs to be replaced, the tensioning wheels 14 on both sides of the roller 120 are moved away from the roller 120 respectively. Adjust the conveyor belt 111 to its maximum slack, then wrap the conveyor belt 111, located at the bottom of the tensioning wheel 14, around the tensioning wheel 14 and place it above the tensioning wheel 14. At this time, the conveyor belt changes from an "S" shape to a straight shape. Then, remove the adjusting component 11 at the end of the crossbeam 10, and the conveyor belt 111 can be removed from the linkage wheels 110 at both ends for replacement. This structure is not only highly stable, but also very simple and easy to adjust the tension of the conveyor belt 111 and replace the conveyor belt 111.

[0040] Specifically, the bottom of the two crossbeams 10 located below the drive shaft 12 is connected to a base plate. The drive motor 13 is mounted on the base plate. The output end of the drive motor 13 is equipped with a drive wheel 130. The drive shaft 12 is also equipped with a driven wheel 121. The drive wheel 130 and the driven wheel 121 are meshed together. The drive motor 13 drives the drive shaft 12 to rotate, thereby driving the two conveyor belts 111 on the two inner sides of the crossbeams 10 to move synchronously, which improves the stability of the blister tray 3 on the conveyor belt 111.

[0041] In this embodiment, as Figure 1 and Figure 3As shown, due to the relatively light weight of the thin and light blister tray 3, there is a risk of positional deviation during the transfer on the tray conveyor line 1. In order to more accurately position the blister tray 3 at the target position on the tray conveyor line 1 so as to facilitate the external robot arm to pick up and put down the blister tray 3, a positioning cylinder 15 is installed on one side of the crossbeam 10 along the Y-axis direction. The telescopic end of the positioning cylinder 15 is connected to a positioning block 150. The positioning block 150 is arranged in a "7" shape. A blocking cylinder 16 is installed below the two crossbeams 10. The telescopic end of the blocking cylinder 16 is set vertically upward, and the blocking cylinder 16 is set close to the tray stacking mechanism 2. In this structure, when the blister tray 3 is moved towards the stacking mechanism 2 via the conveyor belt 111, the telescopic end of the blocking cylinder 16 extends upward, and the drive motor 13 stops transmitting power to the conveyor belt 111. At the same time, the positioning cylinder 15 moves the driving positioning block 150 toward the blister tray 3 to push the blister tray 3 to perform position correction. Under the action of the blocking cylinder 16 and the positioning cylinder 15, the blister tray 3 is accurately positioned. On the one hand, the blister tray 3 can be more accurately moved to the stacking mechanism 2 for stacking and collection. On the other hand, the blister tray 3 can be more accurately positioned at the target position of the conveyor belt 111 so that the external robot can pick up and put down products on the blister tray 3.

[0042] In this embodiment, as Figure 3 As shown, the stacking mechanism 2 includes a lifting cylinder 20 installed below two crossbeams 10, and a lifting plate 201 is horizontally mounted on the telescopic end of the lifting cylinder 20; two sets of one-way limiting components 21 are respectively provided on the crossbeams 10 on both sides of the lifting cylinder 20; as shown Figure 4 As shown, the one-way limiting assembly 21 includes a limiting seat 210 mounted on the crossbeam 10, and a limiting block 211 rotatably connected to the limiting seat 210. The limiting block 211 has a "7" shaped structure. The top of the limiting block 211 is chamfered on the side near the limiting seat 210, and the bottom of the free end of the limiting block 211 is inclined. The limiting seat 210 has a clearance space 212 on the side near the limiting block 211. When the blister tray 3 is moved above the lifting plate 201, the lifting cylinder 20 drives the lifting plate 201 to lift upward, and the two sides of the blister tray 3 continuously move upward at the inclined part of the free end of the limiting block 211. When the free end of the limiting block 211 rotates upward, it provides upward movement space for the blister tray 3. When the free end of the limiting block 211 rotates upward, the clearance space 212 provides the limiting block 211 with a rotatable clearance space. When the blister tray 3 is moved above the limiting block 211, the lifting cylinder 20 retracts and resets, and the blister tray 3 will fall onto the four limiting blocks 211 for stacking and collection. Since the limiting block 211 has a "7" shaped structure, when the top of the limiting block 211 is subjected to downward pressure from the blister tray 3, the bottom of the limiting block 211 abuts against the limiting seat 210 to prevent the limiting block 211 from rotating downward.

[0043] Furthermore, such as Figure 3 As shown, guide members 22 are respectively provided on the crossbeams 10 on the left and right sides of the one-way limiting component 21. Fiber optic sensors 220 are respectively installed at the upper and lower ends of the guide members 22. Through the setting of the two fiber optic sensors 220, the operator can more intuitively know the maximum and minimum number of blister trays 3 on the stacking mechanism 2.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An automatic stacking device for blister trays, comprising a tray conveyor line and a stacking mechanism installed at one end of the tray conveyor line; characterized in that, The material tray conveyor line includes two horizontal beams arranged in parallel with each other. The inner ends of the horizontal beams are respectively rotatably mounted with linkage wheels, and the two linkage wheels are connected by a conveyor belt. A drive shaft is rotatably connected between the two crossbeams. Rollers are respectively installed on both ends of the drive shaft near the crossbeams. Tensioning wheels that can be moved and adjusted along the X-axis are respectively installed on the crossbeams on the left and right sides of the rollers. The conveyor belt is S-shaped and wraps around the bottom of the tensioning wheel and the top of the roller, and is connected to the roller for driving. A drive motor is located below the drive shaft, and the output end of the drive motor is connected to the drive shaft.

2. The automatic stacking device for blister trays according to claim 1, characterized in that, The crossbeam is located below the roller and has an adjustment groove along the X-axis. The tensioning wheel is movably mounted in the adjustment groove via a connecting shaft.

3. The automatic stacking device for blister trays according to claim 2, characterized in that, The drive shaft is equipped with a driven wheel, and the output end of the drive motor is equipped with a driving wheel. The driving wheel and the driven wheel are meshed together.

4. The automatic stacking device for blister trays according to claim 1, characterized in that, The stacking mechanism includes a lifting cylinder installed below the two crossbeams, and a lifting plate is installed horizontally on the telescopic end of the lifting cylinder; at least two sets of one-way limiting components are respectively provided on the crossbeams on both sides of the lifting cylinder.

5. The automatic stacking device for blister trays according to claim 4, characterized in that, The unidirectional limiting component includes a limiting seat mounted on the crossbeam, and a limiting block is rotatably connected to the limiting seat, the limiting block having a "7" shaped structure.

6. The automatic stacking device for blister trays according to claim 5, characterized in that, The top of the limiting block is chamfered on the side near the limiting seat, and the bottom of the free end of the limiting block is inclined; the limiting seat is provided with a clearance space on the side near the limiting block.

7. The automatic stacking device for blister trays according to claim 6, characterized in that, Guide components are provided on the crossbeams on both the left and right sides of the unidirectional limiting component, and fiber optic sensors are installed at the upper and lower ends of the guide components respectively.

8. The automatic stacking device for blister trays according to claim 1, characterized in that, A positioning cylinder is provided on one side of the crossbeam along the Y-axis direction, and a positioning block is installed on the telescopic end of the positioning cylinder; a vertically upward blocking cylinder is installed below the two crossbeams.

9. The automatic stacking device for blister trays according to claim 1, characterized in that, At least two supporting columns are installed on the outer sides of each of the two crossbeams.

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