Waste packing machine

Abstract

The utility model discloses a waste packing machine which comprises a box body, a main oil cylinder and a side oil cylinder, the main oil cylinder and the side oil cylinder are arranged on the box body and used for extruding waste to form a packing block, the stroke of a piston rod of the main oil cylinder and the stroke of a piston rod of the side oil cylinder are both smaller than 2500mm, a protective layer is electroplated on the surface of the piston rod, and a supporting ring used for supporting the piston rod is arranged at the end of each oil cylinder. The waste packing machine is reasonable in structural design, the piston rod of the hydraulic oil cylinder is shortened, the protective layer is plated on the outer surface of the piston rod, and the supporting rings are additionally arranged on the guide sleeve and the front cover of the oil cylinder, so that the piston rod is stably supported, is not easy to damage and works stably and reliably for a long time; and the improvement cost is relatively low.

Description

Technical Field

[0001] This utility model relates to the field of scrap steel baling technology, and in particular to a scrap baling machine. Background Technology

[0002] Currently, scrap steel is mostly processed using balers; under normal conditions, various thin metallic materials and scrap steel are cold-pressed, and thin scrap steel and wire with a thickness of less than 8 mm are cold-pressed into cuboid blocks, making scrap metal easier to store and transport.

[0003] The thickness of scrap steel used in baling has also increased from thin scrap steel and wire below 8mm to plate edges of 8-14mm. The existing baling machine equipment has relatively long cylinder pistons. During the production process, the main cylinder piston of the baling machine has been exposed to scratches and repairs by welding, which cannot guarantee long-term use. Moreover, the frequency of scratches is becoming more and more frequent. The hydraulic oil leakage of the main cylinder is serious, and the machine stops due to the jamming of steel plates and rebar, which makes it impossible to meet normal production needs. In addition, the support of the piston rod is unstable, and the rod is prone to pull-out phenomenon.

[0004] For example, patent CN208578798U discloses a main pressure cylinder, which includes three components. The first component is integrally formed by a cap and guide sleeve and a cylinder body. The second component is integrally formed by a piston rod and a piston cap. The third component is an end cap. The cylinder body is tubular, with the cap and guide sleeve integrally disposed at one end of the cylinder body. The other end of the cylinder body is connected to the third component through a connector. The first component and the third component are connected to form a groove-shaped whole. The piston cap is integrally disposed at one end of the piston rod. The piston rod slides against the inner wall of the cylinder body through the piston cap. The cap and guide sleeve at the end of the cylinder body slides against the piston rod. An oil inlet and an oil outlet are respectively provided on the end cap and the cylinder body. Sealing elements are provided at the connection between the first component and the third component, as well as on the sliding contact surface between the cap and guide sleeve and the piston rod. There is a problem of unstable piston rod support, which easily leads to rod pull. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a waste baler that ensures the hydraulic cylinder piston rod is not easily damaged and operates stably and reliably over a long period of time.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] The waste baler includes a housing, a main cylinder and a side cylinder on the housing for compressing waste into bales, the piston rod stroke of the main cylinder and the side cylinder is less than 2500mm, the piston rod surface is electroplated with a protective layer, and the end of the cylinder is provided with a support ring for supporting the piston rod.

[0008] Further or preferred:

[0009] The housing is equipped with a door on the other side of the main oil cylinder, and the door is driven by a door oil cylinder located on the housing.

[0010] The box body has a protrusion on one side, and a cover cylinder is provided on the protrusion. The end of the cylinder cover is hinged to a cover plate that is movably provided on the box body.

[0011] The end of the hydraulic cylinder is provided with a guide sleeve, and the inner edge of the guide sleeve is provided with a guide sleeve support ring.

[0012] The cylinder is provided with a front cover at its end, and a front cover support ring is provided on the inner edge of the front cover.

[0013] Both the inner edge of the guide sleeve and the inner edge of the front cover are provided with annular grooves for installing support rings.

[0014] The width of the annular groove is 6-12 mm.

[0015] The support rings on the inner edge of the guide sleeve are a set arranged side by side.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] The waste baler has a reasonable structural design, with a shortened hydraulic cylinder piston rod and a protective layer plated on the outer surface of the piston rod. Support rings are added to the guide sleeve and front cover of the cylinder to provide stable support for the piston rod, making the hydraulic cylinder piston rod less prone to damage and ensuring stable and reliable long-term operation. Furthermore, the improvement cost is relatively low. Attached Figure Description

[0018] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0019] Figures 1 to 3 This is a schematic diagram of the packaging machine of this utility model.

[0020] Figure 4 This is a schematic diagram of the layout of the packaging machine of this utility model.

[0021] Figure 5 This is a schematic diagram of the main cylinder assembly of this utility model.

[0022] Figure 6 for Figure 5 Enlarged view of the end portion.

[0023] Figure 7 This is a schematic diagram of the guide sleeve structure of this utility model.

[0024] Figure 8 This is a schematic diagram of the front cover structure of this utility model.

[0025] Figure 9 This is a schematic diagram of the base plate structure of this utility model.

[0026] In the picture:

[0027] 1. Housing, 2. Side cylinder, 3. Door cylinder, 4. Main cylinder, 5. Cover cylinder, 6. Cover plate, 7. Hydraulic station, 8. Electrical control cabinet I, 9. Electrical control cabinet II, 10. Operating panel, 11. Piston rod, 12. Guide sleeve, 1201. Guide sleeve support ring, 13. Front cover, 1301. Front cover support ring. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0029] like Figures 1 to 9 As shown, the waste baler includes a box 1, which is a square box. The box has a main cylinder 4 and a side cylinder 2 for compressing waste into bales. The inner end of the main cylinder is connected to a main pressure block, and the inner end of the side cylinder is connected to a side pressure block. The piston rod stroke of both the main cylinder and the side cylinder is less than 2500mm. The piston rod surface is electroplated with a protective layer, and the end of the cylinder is provided with a support ring for supporting the piston rod.

[0030] This utility model waste baler has a reasonable structural design. The hydraulic cylinder piston rod is shortened and a protective layer is plated on the outer surface of the piston rod. Support rings are added to the guide sleeve and front cover of the cylinder to provide stable support for the piston rod. The hydraulic cylinder piston rod is not easily damaged and can work stably and reliably for a long time. Moreover, the improvement cost is relatively low.

[0031] A door is provided on the other side of the housing corresponding to the main oil cylinder. The door is driven by the door oil cylinder 3 located on the upper part of the housing. The side oil cylinders are a set arranged side by side, and the structure is stable and reliable.

[0032] A protrusion is provided on one side of the box body, and a cover cylinder 5 is provided on the protrusion. The end of the cylinder cover is hinged to a cover plate 6 that is movably provided on the box body.

[0033] Furthermore, the end of the cylinder is provided with a guide sleeve 12, and the inner edge of the guide sleeve is provided with a guide sleeve support ring 1201; the end of the cylinder is provided with a front cover 13, and the inner edge of the front cover is provided with a front cover support ring 1301; the guide sleeve is located inside the front cover, and the front cover is connected to the end of the cylinder body of the cylinder by internal and external threads, and the guide sleeve and the inner side of the front cover are positioned by a step.

[0034] Both the inner edge of the guide sleeve and the inner edge of the front cover are provided with annular grooves for installing support rings; the width of the annular grooves is 6-12mm. The support rings on the inner edge of the guide sleeve are arranged in a set side by side. The piston rod 11 is supported by a set of support rings to ensure that the piston rod runs horizontally and to avoid rod pulling.

[0035] The preferred specific example of this utility model is as follows:

[0036] The piston rod is shortened, for example, the piston rod stroke is changed from 3600mm to 2400mm on site. The damaged parts of the piston rod are repaired by welding and the surface is re-electroplated. Due to the shortening of the oil cylinder, the packaging process and hydraulic system need to be modified. The original packaging process of the packaging machine is roughly as follows: unloading (with the participation of crane equipment or gantry crane equipment) - cylinder cover plate - cylinder locking - side pressure cylinder side pressure - main cylinder main pressure - small door cylinder opening small door - main cylinder pushing material - suction or grabbing material (with the participation of crane equipment or gantry crane equipment) - closing small door. The new packaging process is roughly as follows: unloading (with the participation of crane equipment or gantry crane equipment) - cylinder cover plate - cylinder locking - side pressure cylinder side pressure - main cylinder main pressure - suction (with the participation of crane equipment or gantry crane equipment), reducing the processing time by 2 steps. In the hydraulic system, the hydraulic system of the small door is welded and sealed. The small door of the main structure is welded and sealed with 700*700*150 Q235 thick plate to form a sealed packaging chamber.

[0037] Three support rings were added to the guide sleeve and the front cover of the cylinder, and the guide sleeve was machined with grooves and the internal seals were replaced to ensure that the piston rod runs horizontally; two support rings were added to the guide sleeve, one a custom 8mm wide support ring and the other a custom 10mm wide support ring; a 10mm shaft support ring was added to the front cover of the cylinder.

[0038] To address the excessive gaps and wear issues with the wear-resistant plates of the baling machine, the wear-resistant plates were replaced with NM500 wear-resistant plates. The base plate was also optimized (by chamfering both sides for welding, uniformly perforated the wear-resistant base plate, avoiding welding only around the perimeter and ensuring the base plate is not internally suspended). When welding the NM500 wear-resistant plates, MG600 welding rods were used for CO2 gas shielded welding, and the base plate was then compacted.

[0039] After the overall modification of the baler, the piston rod damage that occurred every two or three weeks and became irreparable has been reduced to normal operation of the original main cylinder after about 10 months, achieving the expected goal of main cylinder repair. The baling process of the original baler, which was roughly as follows: feeding - cover plate - cylinder locking - side pressure - main pressure - opening small door - pushing - suction (grabbing) - closing small door, has been changed to roughly as follows: feeding - cover plate - cylinder locking - side pressure - main pressure - suction (grabbing). This reduces two processing steps, eliminates unnecessary scrap steel processing, and speeds up equipment processing efficiency. Furthermore, a hydraulic station 7, electrical control cabinet I 8, electrical control cabinet II 9, and operating platform 10 have been installed near the baler, with a reasonable layout for easy operation.

[0040] By reducing the main cylinder stroke, excessive force on the guide sleeve is reduced, leading to poor support and accelerated guide sleeve wear, which can cause oil leakage or piston rod pulling. Increasing the number of guide rings enhances the guide sleeve's support, preventing rod pulling between the front cover and piston rod. Replacing the protective plates and repairing their clearances to meet specified requirements reduces the likelihood of steel plates and rebar getting stuck due to wear on the protective plates. This invention can also employ a main cylinder-pressing structure for baling to reduce guide sleeve wear, oil leakage, or cylinder pulling caused by excessive uneven load on the guide sleeve of the long-stroke cylinder.

[0041] The above description is only a preferred embodiment of the present utility model. The above technical features can be arbitrarily combined to form multiple embodiments of the present utility model.

[0042] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A waste baler, comprising a housing, a main hydraulic cylinder and a side hydraulic cylinder on the housing for compressing waste into bales, characterized in that: The piston rod stroke of both the main cylinder and the side cylinder is less than 2500mm. The piston rod surface is electroplated with a protective layer, and the end of the cylinder is provided with a support ring for supporting the piston rod.

2. The waste baler as described in claim 1, characterized in that: The housing is equipped with a door on the other side of the main oil cylinder, and the door is driven by a door oil cylinder located on the housing.

3. The waste baler as described in claim 1, characterized in that: The box body has a protrusion on one side, and a cover cylinder is provided on the protrusion. The end of the cylinder cover is hinged to a cover plate that is movably provided on the box body.

4. The waste baler as described in claim 1, characterized in that: The end of the hydraulic cylinder is provided with a guide sleeve, and the inner edge of the guide sleeve is provided with a guide sleeve support ring.

5. The waste baler as described in claim 4, characterized in that: The cylinder is provided with a front cover at its end, and a front cover support ring is provided on the inner edge of the front cover.

6. The waste baler as described in claim 5, characterized in that: Both the inner edge of the guide sleeve and the inner edge of the front cover are provided with annular grooves for installing support rings.

7. The waste baler as described in claim 6, characterized in that: The width of the annular groove is 6-12 mm.

8. The waste baler as described in claim 6, characterized in that: The support rings on the inner edge of the guide sleeve are a set arranged side by side.

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