Plate negative pressure hoisting frame

Abstract

The utility model discloses a plate negative pressure hoisting frame, set up hoisting frame through being provided with on crossbeam, set up negative pressure pump unit between hoisting frame and crossbeam, be provided with a plurality of stringers on crossbeam, and the suction cup unit is fixed on the stringer, and the gas supply main pipe and control valve are set up to corresponding a plurality of suction cup units, and the operating lever and adsorption control valve are set up in crossbeam front side, and the negative pressure pump unit realizes the outside gas supply control through adsorption control valve, the utility model discloses through hoisting work, can realize vertical movement and whether the adsorption of suction cup under the artificial control, and the personnel both -hand operation can improve stability when adsorbing, and when the steel sheet is lifted, realizes vertical buffer through the suction cup unit, can effectively protect plate negative pressure hoisting frame itself, the utility model discloses realize single steel sheet hoisting, and the whole process is semi -automatic, and the efficiency is high and safe, and it overcomes a variety of drawbacks among the prior art, and it is an ideal plate negative pressure hoisting frame.

Description

Technical Field

[0001] This utility model belongs to the technical field of conveyor roller plate hoisting equipment, and in particular relates to a negative pressure hoisting frame for plates. Background Technology

[0002] In the field of material conveying roller technology, most conveying rollers are currently composed of a combination of a roller, a shaft, and bearings. When the roller is manufactured, the sheet material needs to be rolled into a cylindrical shape and then welded to form the roller. In the existing technology, the sheet material is lifted onto the winding equipment by personnel during the winding process. However, there are significant safety hazards during the lifting process. The steel sheet material has sharp edges that can easily cause cuts to personnel. Furthermore, lifting by personnel reduces efficiency and cannot meet current production needs.

[0003] Existing technologies also use hoisting equipment for sheet metal hoisting, but these technologies can only achieve simultaneous hoisting of multiple sheets. On winding equipment, personnel still need to separate multiple layers of steel sheets one by one, which also makes it impossible to directly and quickly achieve the use of steel sheet winding.

[0004] To address the aforementioned technical problems, it is essential for those skilled in the art to design a negative pressure lifting frame for steel plates that enables rapid lifting of single steel plates, is easy to operate, and ensures both lifting efficiency and improved safety during lifting and separation. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, this utility model proposes a negative pressure lifting rack for sheet metal, which has a simple structure and is easy to operate. It controls the suction cup to determine whether the sheet metal is adsorbed or not, thus solving a number of technical problems in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A negative pressure hoisting frame for sheet metal includes a crossbeam, a hoisting frame mounted on the crossbeam, and a negative pressure pump unit positioned between the hoisting frame and the crossbeam; the crossbeam is provided with several fixing sleeves, and longitudinal beams are mounted on the fixing sleeves, with suction cup units fixed on the longitudinal beams. A main air supply pipe is provided for each of the suction cup units, and a number of control valves are provided on the main air supply pipes. The connection between the main air supply pipes and the suction cup units is realized through the control valves. An operating lever is directly or indirectly installed on the crossbeam, and an adsorption control valve is installed on the operating lever. The negative pressure pump unit controls the external air supply through the adsorption control valve.

[0007] The crossbeam is provided with hinge seats at both ends, and the side extension rod is hinged and fixed through the hinge seats. A steel cable is provided between the side extension rod and the hoisting frame. A fixing sleeve is also provided on the side extension rod. A longitudinal beam is provided on the fixing sleeve. A suction cup unit is fixed on the longitudinal beam.

[0008] The suction cup unit includes a vertical rod with a fixing ring in the middle for connection to the outside. Buffer springs are provided at the top and bottom of the fixing ring. A suction cup is provided at the bottom of the vertical rod, and an air hole is provided at the top of the suction cup. A rubber sealing ring is provided around the periphery of the suction cup.

[0009] The suction cup is surrounded by a T-groove, and a rubber sealing ring is fitted inside the T-groove. The rubber sealing ring has a deformation zone, which deforms under negative pressure to cover the bottom steel plate.

[0010] A filter is installed next to the negative pressure pump unit. The filter has an air inlet and an air outlet. An inclined plate is installed inside the filter, and a vertical pipe is installed corresponding to the inclined plate. A spiral blade is installed around the vertical pipe. The spiral blade is connected to the air inlet, and the top of the vertical pipe is connected to the air outlet. A baffle plate is installed at the bottom of the vertical pipe. The lower part of the baffle plate is a liquid storage area, and a drain port is installed at the bottom of the liquid storage area.

[0011] An operating lever is fixed on the negative pressure pump unit.

[0012] The crossbeam is provided with hinge seats at both ends, and hinge holes are provided on the hinge seats. The bottom of the side extension rod is supported by the hinge seats to prevent the side extension rod from sagging.

[0013] This invention has the following advantages: A lifting frame is installed on a crossbeam, and a negative pressure pump unit is installed between the lifting frame and the crossbeam. Several longitudinal beams are installed on the crossbeam, and suction cup units are fixed on the longitudinal beams. Corresponding to the suction cup units are main air supply pipes and control valves. An operating rod and a suction control valve are installed on the front side of the crossbeam, and the suction control valve controls the external air supply from the negative pressure pump unit. Through lifting operations, this invention allows for vertical movement and suction cup activation / deactivation under manual control. The operator uses both hands, improving stability during suction. When lifting the steel plate, the suction cup units provide vertical buffering, effectively protecting the negative pressure lifting frame itself. This invention enables single-plate lifting, with a fully semi-automated process, resulting in high efficiency and safety. It overcomes many shortcomings of existing technologies and is an ideal negative pressure lifting frame for steel plates. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure I (Front side); Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure II (Rear side); Figure 3 This is a schematic diagram of the main structure of this utility model; Figure 4 Schematic diagram of the rubber sealing ring fixing structure; Figure 5 This is a schematic diagram of the internal structure of the filter; In the diagram, 1 is the crossbeam, 11 is the fixing sleeve, 12 is the longitudinal beam, 13 is the suction cup fixing sleeve, and 14 is the fixing ring. 2. Lifting frame; 21. Hanging platform; 3. Gas supply main pipe; 31. Control valve; 32. Tee; 4. Filter, 40. Tank body, 41. Air inlet, 42. Air outlet, 43. Drain outlet, 44. Water baffle, 45. Vertical pipe, 46. Spiral blade, 47. Inclined plate, 48. Flange, 49. Liquid storage area, 50. Fixing plate. 5. Negative pressure pump unit; 51. Operating lever; 52. Handle; 53. Adsorption control valve; 6. Side extension rod; 60. Hinge shaft; 61. Hinge seat; 62. Steel cable; 7. Suction cup unit; 71. Vertical rod; 72. Upper buffer spring; 73. Lower buffer spring; 74. Air hole; 75. Suction cup; 76. Rubber sealing ring; 751. T-slot; 761. Insertion protrusion; 762. Deformation area; 763. Covering area. Detailed Implementation

[0016] The negative pressure hoisting frame for sheet metal disclosed in this utility model is novel and reasonable. However, the beneficial effects of its overall structural improvement are obvious. In order to make the improved effects of this utility model clearer, the following describes this utility model in further detail through specific embodiments.

[0017] Example 1: A negative pressure hoisting frame for sheet metal, comprising a crossbeam 1, on which a hoisting frame 2 is provided, wherein the hoisting frame 2 is locked and fixed above the middle part of the crossbeam 1 by a support column; A negative pressure pump unit 5 is provided between the hoisting frame 2 and the crossbeam 1; several fixing sleeves 11 are provided on the crossbeam 1, and a longitudinal beam 12 is welded on the fixing sleeve 11. Suction cup fixing sleeves 13 are symmetrically provided at both ends of the longitudinal beam 12, and the suction cup unit 7 is fixed by the suction cup fixing sleeves 13.

[0018] This utility model provides an air supply main pipe 3 for each of the suction cup units 7. Several control valves 31 are provided on the air supply main pipe 3, and each control valve is provided with a three-way valve 32. The air pipe is connected through the three-way valve 32, and the other end of the air pipe is connected to the suction cup unit 7. This structure forms a control connection between the air supply main pipe 3 and the suction cup unit 7.

[0019] The negative pressure pump unit 5 on the crossbeam 1 is equipped with an operating rod 51, a handle 52 and an adsorption control valve 53, and the negative pressure pump unit 5 controls the external air supply through the adsorption control valve 53.

[0020] The crossbeam 1 has hinge seats 61 at both ends, which are hinged to the side extension rod 6 via hinge shafts 60. A steel cable 62 is connected between the side extension rod 6 and the lifting frame 2. A fixing sleeve 11 is also provided on the side extension rod 6, and a longitudinal beam 12 is welded to the fixing sleeve 11. A suction cup unit 7 is fixed on the longitudinal beam 12. The side extension rod 6 is an extension of the working length of the crossbeam 1. By providing hinge seats 61 at both ends of the crossbeam, the bottom of the side extension rod 6 is supported by the hinge seats 61, which prevents the side extension rod 6 from sagging.

[0021] The working principle of this utility model is that the operator controls multiple suction cup units 7 by holding the operating rod 51. The steel plate is adsorbed and lifted by the negative pressure environment inside the suction cup unit 7. In actual operation, the stability of the suction cup unit 7 adsorbing the steel plate must be ensured. This embodiment discloses a suction cup unit 7 structure. Through testing, this structure has a relatively stable adsorption structure, which is specifically disclosed as follows: It includes a vertical rod 71. The upper part of the vertical rod 71 is provided with threads. The middle part of the vertical rod 71 is provided with a fixing ring 14 for external connection. The upper part of the fixing ring 14 is provided with an upper buffer spring 72 and an upper buffer spring 73, respectively. The top of the vertical rod 71 is locked with a nut. The bottom of the vertical rod 71 is provided with a suction cup 75. The top of the suction cup 75 is provided with an air hole 74. The air hole 74 is connected to the tee 32 to realize negative pressure control. A rubber sealing ring 76 is provided around the periphery of the suction cup 75. When performing negative pressure suction, the suction cup unit 7 must ensure the airtightness of the periphery of the suction cup 75. Therefore, this invention has made further improvements. A T-shaped groove 751 is provided around the periphery of the suction cup 75, and a rubber sealing ring 76 is fixed in the T-shaped groove 751. The rubber sealing ring 76 is provided with an insertion protrusion 761, and a deformation area 762 is provided at the lower part of the rubber sealing ring 76. Under negative pressure, the bottom covering area 763 is tightly attached to the steel plate to achieve a tight attachment to the bottom steel plate. With the above structural settings, when attaching to the steel plate, the suction cup 75 at the bottom of the vertical rod 71 can achieve buffering during rising and falling under the dual action of the upper buffer spring 72 and the upper buffer spring 73, avoiding the impact or damage to the entire negative pressure lifting frame of the plate when it hangs down.

[0022] Because this invention achieves suction of the steel plate through negative pressure, the key factor for achieving suction stability is ensuring the integrity and dryness of the rubber sealing ring 76 surrounding the suction cup 75. In other words, during negative pressure suction, moisture in the steel plate area is stably and directly drawn outwards. When there is excessive moisture inside the negative pressure pump unit 5 or in the pipeline, the stability of this negative pressure suction will decrease. Therefore, this invention requires a water filtration device around the negative pressure pump unit 5. This invention designs a relatively simple structure, as follows: Figure 5As shown, a filter 4 is provided next to the negative pressure pump unit 5. The tank 40 of the filter 4 is designed as a split assembly, with two split parts connected and fixed together by a flange 48. An air inlet 41 and an air outlet 42 are provided on the tank 40. An inclined plate 47 is provided inside the filter 4, and a vertical pipe 45 is provided corresponding to the inclined plate 47. A spiral blade 46 is provided around the vertical pipe 45. The spiral blade 46 is connected to the air inlet 41, and the top of the vertical pipe 45 is connected to the air outlet 42. A baffle plate 44 is provided at the bottom of the vertical pipe 45. The lower part of the baffle plate 44 is a liquid storage area 49, and the bottom of the liquid storage area 49 is provided with a drain outlet 43. With this structure, the gas entering the air inlet 41 sinks through a spiral, while the heavier liquid sinks through the baffle plate 44 and enters the liquid storage area 49. The filtered gas is discharged through the air outlet 42 and enters the negative pressure pump unit 5. This structure can dehumidify the air entering the negative pressure pump, ensuring the stability of the operation of the negative pressure pump unit 5.

[0023] In summary, this utility model operates through a hoisting method, enabling vertical movement of a single steel plate and suction cup adsorption under manual control. The operator uses both hands, improving stability during suction. When the steel plate is lifted, the suction cup unit 7 provides vertical buffering, effectively protecting the negative pressure hoisting frame itself. This utility model achieves single-plate hoisting in a semi-automatic manner, offering high efficiency and safety. It overcomes many shortcomings of existing technologies and is an ideal negative pressure hoisting frame for steel plates.

Claims

1. A negative pressure hoisting frame for sheet metal, characterized in that: It includes a crossbeam, a lifting frame on the crossbeam, and a negative pressure pump unit between the lifting frame and the crossbeam; the crossbeam is provided with several fixing sleeves, and longitudinal beams are provided on the fixing sleeves, with suction cup units fixed on the longitudinal beams. A main air supply pipe is provided for each of the suction cup units, and a number of control valves are provided on the main air supply pipes. The connection between the main air supply pipes and the suction cup units is realized through the control valves. An operating lever is directly or indirectly installed on the crossbeam, and an adsorption control valve is installed on the operating lever. The negative pressure pump unit controls the external air supply through the adsorption control valve.

2. The negative pressure lifting frame for sheet metal as described in claim 1, characterized in that: The crossbeam is provided with hinge seats at both ends, and the side extension rod is hinged and fixed through the hinge seats. A steel cable is provided between the side extension rod and the hoisting frame. A fixing sleeve is also provided on the side extension rod. A longitudinal beam is provided on the fixing sleeve. A suction cup unit is fixed on the longitudinal beam.

3. The negative pressure lifting frame for sheet metal as described in claim 1 or 2, characterized in that: The suction cup unit includes a vertical rod with a fixing ring in the middle for connection to the outside. Buffer springs are provided at the top and bottom of the fixing ring. A suction cup is provided at the bottom of the vertical rod, and an air hole is provided at the top of the suction cup. A rubber sealing ring is provided around the periphery of the suction cup.

4. The negative pressure lifting frame for sheet metal as described in claim 1, characterized in that: The suction cup is surrounded by a T-groove, and a rubber sealing ring is fitted inside the T-groove. The rubber sealing ring has a deformation zone, which deforms under negative pressure to cover the bottom steel plate.

5. The negative pressure lifting frame for sheet metal as described in claim 1, characterized in that: A filter is installed next to the negative pressure pump unit. The filter has an air inlet and an air outlet. An inclined plate is installed inside the filter, and a vertical pipe is installed corresponding to the inclined plate. A spiral blade is installed around the vertical pipe. The spiral blade is connected to the air inlet, and the top of the vertical pipe is connected to the air outlet. A baffle plate is installed at the bottom of the vertical pipe. The lower part of the baffle plate is a liquid storage area, and a drain port is installed at the bottom of the liquid storage area.

6. The negative pressure lifting frame for sheet metal as described in claim 1, characterized in that: An operating lever is fixed on the negative pressure pump unit.

7. The negative pressure lifting frame for sheet metal as described in claim 2, characterized in that: The crossbeam is provided with hinge seats at both ends, and hinge holes are provided on the hinge seats. The bottom of the side extension rod is supported by the hinge seats to prevent the side extension rod from sagging.

Images