A press pack conveyor for a sodium carboxymethyl cellulose product

Abstract

The utility model relates to a kind of sodium carboxymethyl cellulose product is compressed and packed conveyor, including upper and lower parallel arrangement's upper belt conveyor and lower belt conveyor, the upper belt conveyor includes upper frame, upper driving roller, upper driven roller and the upper belt passing through upper driving roller and upper driven roller, the lower belt conveyor includes lower frame, lower driving roller, lower driven roller and the lower belt passing through lower driving roller and lower driven roller, lower support plate is fixedly connected in the lower frame, the lower support plate is attached with the lower end surface of upper layer lower belt, upper pressing plate is slidably connected in the vertical direction of upper belt in the upper frame, lower compression spring that upper pressing plate is compressed in the upper end surface of lower layer upper belt is also installed in the upper frame, the device compact and reasonable structure, high degree of automation, can continuously, efficiently complete conveying and flattening shaping work, significantly improve the stability of stacking and overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of conveyor technology, specifically to a compression conveyor for sodium carboxymethyl cellulose products. Background Technology

[0002] Sodium carboxymethyl cellulose, an important chemical product, typically requires packaging for storage and transportation after production. To facilitate subsequent stacking and warehousing, these bags need to maintain a flat shape during transport. Currently, factories often use inclined belt conveyors to transport the bags to a designated height for stacking. However, because sodium carboxymethyl cellulose is a free-flowing powder or granular material, its weight causes it to accumulate towards the rear of the bag during upward conveying. This results in the front of the bag, initially flattened upon feeding, becoming deflated, while the rear bulges, forming an irregular shape. When these deformed bags are subsequently stacked, the uneven contact surface and unstable center of gravity easily lead to tilting or even collapse of the entire stack, posing serious safety hazards and affecting storage space utilization and transportation efficiency. Therefore, a solution is urgently needed to effectively suppress material accumulation during inclined conveying, ensuring the bags remain flat and creating the necessary conditions for stable stacking. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a compression conveyor for sodium carboxymethyl cellulose products.

[0004] This utility model is achieved through the following technical solution: a compression conveyor for sodium carboxymethyl cellulose products is provided, comprising an upper belt conveyor and a lower belt conveyor arranged in parallel. The upper belt conveyor includes an upper frame, an upper drive roller, an upper driven roller, and an upper belt that passes over the upper drive roller and the upper driven roller. The lower belt conveyor includes a lower frame, a lower drive roller, a lower driven roller, and a lower belt that passes over the lower drive roller and the lower driven roller. A lower support plate is fixedly connected inside the lower frame, and the lower support plate is in contact with the lower end face of the upper lower belt. An upper pressure plate is slidably connected inside the upper frame along the vertical direction of the upper belt. A lower pressure spring is also installed inside the upper frame to press the upper pressure plate against the upper end face of the lower upper belt.

[0005] In this solution, the packaging bags are clamped and conveyed by an upper belt conveyor and a lower belt conveyor. The lower belt conveyor is equipped with a rigid lower support plate, and the upper belt conveyor is equipped with an elastic pressing upper pressure plate. The two work together to continuously apply uniform pressure to the packaging bags during conveying, while also adapting to slight changes in the thickness of the packaging bags, ensuring that they are stably flattened and shaped.

[0006] As an optimization, both the upper and lower belt conveyors are inclined, with the upper belt's conveying speed being 1.05-1.1 times that of the lower belt. In this design, the upper belt conveyor's speed is set slightly faster than the lower belt conveyor, creating a small speed difference. This speed difference generates a forward "pushing" effect, which not only assists in conveying but also further counteracts the tendency of materials to tilt backward, enhancing the anti-accumulation and leveling effects.

[0007] As an optimization, the outer surface of the upper belt is provided with multiple raised strips arranged along its length, and the raised strips extend along the width direction of the upper belt. The raised strips in this design improve the agitation effect of the upper belt on the packaging bag.

[0008] As an optimization, the lower belt conveyor is fixed, while the upper belt conveyor is connected to the lower belt conveyor through multiple elastic connecting mechanisms. In this design, the elastic connecting mechanisms allow the upper belt conveyor to float upwards a certain distance, preventing excessively large packaging bags from being squeezed and damaged, as well as the conveyor itself, after entering the conveying channel.

[0009] As an optimization, the elastic connection mechanism includes a support bolt, a lower connecting plate fixed to the lower frame, and an upper connecting plate fixed to the upper frame. The support bolt passes through the upper connecting plate and is fixed to the lower connecting plate. A protective spring is installed between the bolt head at the upper end of the support bolt and the upper connecting plate. A support nut is installed on the support bolt and fits against the lower end face of the upper connecting plate. When the upper belt conveyor receives an upward thrust greater than its weight, it will float upward by compressing the protective spring through the upper connecting plate.

[0010] As an optimization, at least two upper support beams are fixedly connected to the inner side of the upper frame, and an upper reinforcing beam is fixedly connected to the upper upper surface of the upper pressure plate. Multiple connecting screws passing through the upper support beams are fixedly connected to the upper reinforcing beams, and a downward pressure spring is located between the upper support beams and the upper reinforcing beams. In this design, the upper pressure plate is guided to float using the connecting screws.

[0011] As an optimization, a limiting nut is installed on the connecting screw, located above the upper support beam. The limiting nut limits the downward movement of the upper pressure plate.

[0012] The beneficial effects of this utility model are as follows: By using upper and lower belt conveyors that are parallel and inclined, a clamping conveyor channel is formed. When the packaging bag enters this channel, its upper and lower surfaces are simultaneously constrained by the belts, which effectively inhibits the backward slippage and accumulation of the material inside the bag due to gravity at the inclined angle, thus fundamentally avoiding the phenomenon of uneven air pockets at the beginning and end of the packaging bag.

[0013] The system innovatively incorporates a rigid lower support plate on the lower belt conveyor and an elastic upper pressure plate on the upper belt conveyor. The two work together to apply uniform pressure to the packaging bags during transport while adapting to slight changes in their thickness, ensuring that the bags are stably flattened and shaped. This allows the bags to maintain a neat square shape when they arrive at the stacking station, laying a solid foundation for subsequent stable and orderly stacking.

[0014] By cleverly setting the speed of the upper belt conveyor to be slightly faster than that of the lower belt conveyor, a small speed difference is created. This speed difference produces a forward "pushing" effect, which not only assists in conveying but also further counteracts the tendency of materials to tilt backward, thus enhancing the anti-accumulation and leveling effects.

[0015] In summary, the device has a compact and reasonable structure, a high degree of automation, and can continuously and efficiently complete the conveying and flattening and shaping work, significantly improving the stability of palletizing and overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention; Figure 2 This is a front view of the elastic connection mechanism of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model; Figure 4 This utility model Figure 3 Connection diagram of the upper and middle pressure plates; Figure 5 This utility model Figure 3 Enlarged view of section A in the middle; As shown in the figure: 1. Lower belt conveyor; 2. Upper belt conveyor; 3. Flexible connecting mechanism; 11. Lower frame; 12. Lower drive roller; 13. Lower driven roller; 14. Lower belt; 15. Lower support plate; 16. Lower reinforcing beam; 17. Lower support beam; 21. Upper frame; 22. Upper drive roller; 23. Upper driven roller; 24. Upper belt; 25. Upper pressure plate; 26. Upper reinforcing beam; 27. Upper support beam; 28. Connecting screw; 29. ​​Lower pressure spring; 30. Limit nut; 31. Lower connecting plate; 32. Upper connecting plate; 33. Support bolt; 34. Protective spring; 35. Support nut. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0018] like Figures 1-5As shown, the present invention discloses a compression conveyor for sodium carboxymethyl cellulose products, comprising an upper belt conveyor 2 and a lower belt conveyor 1 arranged in parallel. Both the upper belt conveyor 2 and the lower belt conveyor 1 are inclined. The lower belt conveyor 1 drives the packaging bag to be conveyed upwards, while the upper belt conveyor 2 realizes the compression conveying of the packaging bag above.

[0019] like Figure 3 As shown, the upper belt conveyor 2 includes an upper frame 21, an upper drive roller 22, an upper driven roller 23, and an upper belt 24 that passes over the upper drive roller 22 and the upper driven roller 23. The upper drive roller 22 and the upper driven roller 23 are respectively shafted to the upper and lower ends of the upper frame 21. The upper drive roller 22 is driven to rotate by a motor, thereby driving the upper belt 24 to move in a cycle.

[0020] like Figure 3 As shown, the lower belt conveyor 1 includes a lower frame 11, a lower drive roller 12, a lower driven roller 13, and a lower belt 14 that passes over the lower drive roller 12 and the lower driven roller 13. The lower drive roller 12 and the lower driven roller 13 are respectively shafted to the upper and lower ends of the lower frame 11. The lower drive roller 12 is driven to rotate by a motor, thereby driving the lower belt 14 to move in a cycle.

[0021] The conveying speed of the upper belt 24 is 1.05-1.1 times that of the lower belt 14. This makes the upper belt conveyor slightly faster than the lower belt conveyor, creating a small speed difference. This speed difference produces a forward "pushing" effect, which not only assists in conveying but also further counteracts the tendency of materials to tilt backward, enhancing the anti-accumulation and leveling effects.

[0022] At the same time, in order to improve the actuation effect of the upper belt 24, such as Figure 5 As shown, the outer side of the upper belt 24 is provided with a plurality of protrusions arranged along the length direction, and the protrusions extend along the width direction of the upper belt 24.

[0023] In order to support the packaging bag when it is conveyed on the lower belt 14, a lower support plate 15 is fixedly connected inside the lower frame 11. The lower support plate 15 is in contact with the lower end face of the upper lower belt 14, and the front and rear ends of the lower support plate 15 are bent downward to prevent wear between the ends and the lower belt 14.

[0024] To achieve fixed support for the lower support plate 15, such as Figure 3 As shown, a lower reinforcing beam 16 extending forward and backward is welded to the lower end face of the lower support plate 15. The lower end of the lower reinforcing beam 16 is welded to two lower support beams extending left and right. The lower support beams 17 are fixed to the lower frame 11 by bolts.

[0025] An upper pressure plate 25 is slidably connected to the upper frame 21 along the vertical direction of the upper belt 24. A lower pressure spring 29 is also installed inside the upper frame 21 to press the upper pressure plate 25 against the upper end face of the lower upper belt 24. The front and rear ends of the upper pressure plate 25 are bent upward to prevent wear between the ends and the upper belt 24.

[0026] To achieve the sliding connection of the upper pressure plate 25 along the vertical direction of the upper belt 24 and the installation of the lower pressure spring 29, as follows: Figure 4 As shown, at least two upper support beams 27 are fixedly connected inside the upper frame 21, and an upper reinforcing beam 26 extending forward and backward is fixedly connected to the upper end face of the upper pressure plate 25. Multiple connecting screws 28 passing through the upper support beams 27 are fixedly connected to the upper reinforcing beams 26, and the upper pressure plate 25 is guided and slidably connected through the multiple connecting screws 28.

[0027] The downward pressure spring 29 is located between the upper support beam 27 and the upper reinforcing beam 26, thus enabling the installation of the downward pressure spring 29. The connecting screw 28 is equipped with a limiting nut 30 located above the upper support beam 27, which limits the downward movement of the upper pressure plate.

[0028] The lower belt conveyor 1 is fixedly installed. In order to prevent the packaging bag from being damaged or the conveyor from being damaged due to insufficient floating distance of the upper pressure plate 25 because the packaging bag is too large, the upper belt conveyor 2 is connected to the lower belt conveyor 1 through multiple elastic connecting mechanisms 3 in this embodiment. The elastic connecting mechanisms 3 allow the upper belt conveyor 2 to float upward elastically for a certain distance.

[0029] like Figure 2 As shown, the elastic connection mechanism 3 includes a support bolt 33, a lower connecting plate 31 fixed to the lower frame 11, and an upper connecting plate 32 fixed to the upper frame 21. The support bolt 33 passes through the upper connecting plate 32 and is fixed to the lower connecting plate 31. Specifically, the support bolt 33 is fixed to the lower connecting plate 31 by clamping the lower connecting plate 31 with two nuts.

[0030] A protective spring 34 is installed between the bolt head at the upper end of the support bolt 33 and the upper connecting plate 32. A support nut 35 is installed on the support bolt 33 and fits against the lower end face of the upper connecting plate 32. During normal operation, the upper connecting plate 32 is supported on the support nut 35.

[0031] The method of using this utility model is as follows: Both the upper belt conveyor 2 and the lower belt conveyor 1 are inclined, and the length of the lower belt conveyor 1 is greater than the length of the upper belt conveyor 2. The packaging bag containing sodium carboxymethyl cellulose is first conveyed upward by the lower belt conveyor 1, and then when it moves to the position of the upper belt conveyor 2, it is conveyed by clamping the upper belt conveyor 2 and the lower belt conveyor 1. Since the conveying speed of the upper belt conveyor 2 is slightly faster, the packaging bag is propelled forward by a small speed difference, eliminating the backward accumulation of materials in the packaging bag caused by gravity.

[0032] After the packaging bag is moved between the lower support plate 15 and the upper pressure plate 25, the lower belt 14 is supported by the lower support plate 15 and the upper belt 24 is supported by the upper pressure plate 25. The packaging bag is flattened by the elastic force of the lower pressure spring 29 for subsequent stacking.

[0033] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A compression conveyor for sodium carboxymethyl cellulose products, characterized in that: The conveyor includes an upper belt conveyor (2) and a lower belt conveyor (1) arranged in parallel. The upper belt conveyor (2) includes an upper frame (21), an upper drive roller (22), an upper driven roller (23), and an upper belt (24) that passes over the upper drive roller (22) and the upper driven roller (23). The lower belt conveyor (1) includes a lower frame (11), a lower drive roller (12), a lower driven roller (13), and a lower belt (14) that passes over the lower drive roller (12) and the lower driven roller (13). A lower support plate (15) is fixedly connected inside the lower frame (11). The lower support plate (15) is in contact with the lower end face of the upper lower belt (14). An upper pressure plate (25) is slidably connected inside the upper frame (21) along the vertical direction of the upper belt (24). A lower pressure spring (29) is also installed inside the upper frame (21) to press the upper pressure plate (25) against the upper end face of the lower upper belt (24).

2. The compression conveyor for sodium carboxymethyl cellulose products according to claim 1, characterized in that: Both the upper belt conveyor (2) and the lower belt conveyor (1) are inclined, and the conveying speed of the upper belt (24) is 1.05-1.1 times that of the lower belt (14).

3. The compression conveyor for sodium carboxymethyl cellulose products according to claim 2, characterized in that: The outer side of the upper belt (24) is provided with a plurality of protrusions arranged along the length direction, and the protrusions extend along the width direction of the upper belt (24).

4. The compression conveyor for sodium carboxymethyl cellulose products according to claim 1, characterized in that: The lower belt conveyor (1) is fixedly installed, and the upper belt conveyor (2) is connected to the lower belt conveyor (1) through multiple elastic connection mechanisms (3).

5. The compression conveyor for sodium carboxymethyl cellulose products according to claim 4, characterized in that: The elastic connection mechanism (3) includes a support bolt (33), a lower connecting plate (31) fixed to the lower frame (11), and an upper connecting plate (32) fixed to the upper frame (21). The support bolt (33) passes through the upper connecting plate (32) and is fixed to the lower connecting plate (31). A protective spring (34) is installed between the bolt head at the upper end of the support bolt (33) and the upper connecting plate (32). A support nut (35) is installed on the support bolt (33) and fits against the lower end face of the upper connecting plate (32).

6. The compression conveyor for sodium carboxymethyl cellulose products according to claim 1, characterized in that: At least two upper support beams (27) are fixedly connected inside the upper frame (21), and an upper reinforcing beam (26) is fixedly connected to the upper end face of the upper pressure plate (25). Multiple connecting screws (28) passing through the upper support beams (27) are fixedly connected to the upper reinforcing beams (26), and a lower pressure spring (29) is located between the upper support beams (27) and the upper reinforcing beams (26).

7. The compression conveyor for sodium carboxymethyl cellulose products according to claim 6, characterized in that: The connecting screw (28) is equipped with a limiting nut (30) located above the upper support beam (27).

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