Reciprocating elevator

Abstract

The reciprocating lifting machine provided by the utility model belongs to the field of logistics storage, completes the layer changing action of a material box on the basis of an air source driving mode, and meanwhile, light-weight design is carried out aiming at a reciprocating lifting mechanism so as to be suitable for various single-layer and double-layer butt joint position requirements, so that the aims of obviously improving the arrangement flexibility of a conveying line and the layer changing operation efficiency are achieved. Comprising a main frame, one side of the main frame is slidably connected with a reciprocating lifting support, and the other side of the main frame is provided with a jacking air cylinder assembly, an air source control system used for controlling the telescopic stroke of an air cylinder and a movable pulley chain assembly. The jacking air cylinder assembly is connected with the reciprocating lifting support in a driving mode through a movable pulley chain assembly so as to drive the reciprocating lifting support to ascend and descend in a reciprocating mode in the vertical direction, and a roller line for conveying a material box in the horizontal direction is installed on the reciprocating lifting support.

Description

TECHNICAL FIELD

[0001] The utility model relates to a goods layer changing mechanism for light conveying line, and particularly discloses a reciprocating elevator based on air source driving to realize layer changing conveying, and belongs to the field of logistics and warehousing. BACKGROUND

[0002] In the actual order distribution scene of logistics and warehousing, the manual packing position is usually divided into a workbench, a empty box line and a box feeding line. Influenced by the order category, the use rate of the packing position material box is unstable, so the empty material box buffer line is needed to buffer to avoid the problem of affecting the packing efficiency due to insufficient empty material boxes. For the manual comfortable operation range, the single-layer line can usually only buffer three empty material boxes, and in the actual process, it is easy to appear that the waiting time is long due to no material box available, and the production line operation is affected due to too many empty material boxes. The material box layer changing conveying mechanism can effectively complete the single-double layer conversion operation of the empty box line, that is, the manual operation comfortable area is converted into a double-layer line for material box storage to double the storage quantity of empty material boxes, so as to avoid the operation gap period and improve the production line efficiency.

[0003] The reciprocating lifting mechanism adopted in the prior art is usually based on floor changing or interfaces with a shuttle vehicle to store the material boxes, and such mechanism has problems of large size, high power consumption and high use cost, and the existing single-double layer interface efficiency is still low.

[0004] Therefore, the patent application is proposed. CONTENT OF THE UTILITY MODEL

[0005] The reciprocating elevator provided by the utility model solves the problems of the prior art and completes the layer changing operation of the material box based on the air source driving mode, and the reciprocating elevator is designed to be light in weight to meet the requirements of various single-double layer interface positions, so that the conveying line arrangement flexibility and the layer changing operation efficiency are significantly improved.

[0006] To achieve the above design purposes, the reciprocating elevator includes a main frame, a reciprocating lifting support is slidably connected to one side of the main frame, a jacking cylinder assembly, an air source control system for controlling the extension and retraction stroke of the cylinder and a movable pulley chain assembly are arranged on the other side of the main frame, the jacking cylinder assembly is drivenly connected to the reciprocating lifting support through the movable pulley chain assembly to drive the reciprocating lifting support to vertically reciprocate, and a roller line for conveying the material box in the horizontal direction is installed on the reciprocating lifting support.

[0007] Further, the reciprocating lifting support is in an L-shaped structure welded and connected between a vertical part and a horizontal part, a group of guide wheels is arranged at four end corners of the vertical part through bearing shafts, the four groups of guide wheels are divided into two groups on the vertical sides and are slidably nested in the vertical slides on the inner side of the main frame, and the vertical part is fixedly connected to the chain assembly in the movable pulley chain assembly; and the horizontal part is fixedly connected to the bottom of the roller line.

[0008] Further, a set of blocking mechanisms are arranged inside the roller line, including two sets of cranks installed on the side of the roller line frame, and a set of stop cylinders, both ends of each set of cranks are coaxially arranged on the roller line frame, and one end of each set of cranks is coaxially connected with a set of stop rods, and the output shaft end of the stop cylinder is coaxially connected to the other end of one set of cranks relative to the stop rod, and a set of connecting rods are transversely connected between the two sets of stop rods.

[0009] Further, the movable pulley chain assembly includes a fixed pulley assembly installed on the main frame, a movable pulley assembly connected to the output shaft end of the jacking cylinder assembly, and a chain assembly wrapped between the fixed pulley assembly and the movable pulley assembly in a closed loop, and the chain assembly is fixedly connected to the reciprocating lifting bracket.

[0010] Further, two pairs of vertically symmetrical limiting blocks are arranged on both sides of the main frame inside the lifting track of the reciprocating lifting bracket.

[0011] Further, at least one set of photoelectric detection assemblies are arranged on the side of the main frame.

[0012] Further, a protective net is arranged on the outside of the main frame on the side of the jacking cylinder assembly, the air source control system, and the movable pulley chain assembly.

[0013] In summary, the reciprocating lifting machine has the advantages and beneficial effects that the cylinder is used to complete the layer changing action of the material box, and the reciprocating lifting mechanism is lightweight, effectively reducing the equipment size, power consumption and use cost. At the same time, the present application can be widely used in single-double layer docking positions of material box conveying lines, making the layout of the conveying line more flexible and efficient, optimizing the operation rhythm of the empty box temporary storage, and significantly improving the overall conveying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described in conjunction with the following drawings.

[0015] Figure 1 And Figure 2 is a structural schematic diagram of the reciprocating lifting machine from different perspectives;

[0016] Figure 3 is a schematic diagram of the reciprocating lifting bracket connected to the main frame;

[0017] Figure 4 is a structural schematic diagram of the reciprocating lifting bracket assembly;

[0018] Figure 5 is a structural schematic diagram of the blocking mechanism; DETAILED DESCRIPTION

[0019] Example 1, asFigures 1 to 5 As shown, the reciprocating lifting machine described in the present application is applied to the layer changing operation of the material box in the light conveying line. The principle of the device operation is that the control system makes a judgment when the material box passes. If the buffer area of one layer of the conveying line is not full, the material box directly enters the buffer area of one layer. If the buffer area of one layer is full, the reciprocating lifting machine described in the present application lifts and transfers the material box to the buffer area of two layers. Subsequently, all mechanisms of the reciprocating lifting machine return to the original position to wait for the execution of the next action.

[0020] The reciprocating lifting machine comprises a main frame 1.1 as a device base. A reciprocating lifting support 1.2 is slidably connected to one side of the main frame 1.1. A jacking cylinder assembly 1.3, a gas source control system 1.8 for controlling the telescopic stroke of the cylinder, and a movable pulley chain assembly 1.6 are arranged on the other side of the main frame 1.1. The jacking cylinder assembly 1.3 is drivenly connected to the reciprocating lifting support 1.2 through the movable pulley chain assembly 1.6 to drive the reciprocating lifting support 1.2 to vertically reciprocate. A roller line 1.4 for horizontally conveying the material box is installed on the reciprocating lifting support 1.2.

[0021] The main body structure of the reciprocating lifting support 1.2 is composed of a roller line support frame and a guide wheel, which is the main moving component of the reciprocating lifting mechanism. The reciprocating lifting support 1.2 cooperates with the jacking cylinder assembly and the movable pulley assembly to complete the lifting action of the material box.

[0022] The jacking cylinder assembly 1.3 is vertically installed at the bottom of the main frame 1.1. The output shaft end of the jacking cylinder assembly 1.3 is connected to the movable pulley assembly of the movable pulley chain assembly 1.6 to drive the movable pulley assembly to vertically ascend and descend. In turn, the chain drives the reciprocating lifting support 1.2 to ascend and descend.

[0023] The movable pulley chain assembly 1.6 comprises a fixed pulley assembly installed on the main frame 1.1, a movable pulley assembly connected to the output shaft end of the jacking cylinder assembly 1.3, and a chain assembly closed looped between the fixed pulley assembly and the movable pulley assembly. The chain assembly is fixedly connected to the reciprocating lifting support 1.2.

[0024] In order to improve the safety performance, two pairs of vertically symmetrical limiting blocks 1.9 are arranged on the lifting track of the reciprocating lifting support 1.2 and the inside of the main frame 1.1. The limiting blocks 1.9 are used to limit the reciprocating lifting support 1.2 at the two ends of the maximum stroke, thereby preventing the overstroke and the resulting damage to the gas pipe and other safety accidents.

[0025] In order to cooperate with the design and use of the above-mentioned mechanical limiting mechanism, at least one set of photoelectric detection assembly 1.10 is arranged on the side of the main frame 1.1. The photoelectric detection assembly 1.10 is arranged in pairs according to the different heights and the number of buffer areas of the light conveying line body, and is used to detect and assist in positioning during the lifting process of the reciprocating lifting support 1.2.

[0026] Further, a protective net 1.7 can be arranged outside the main frame 1.1 on the side of the jacking cylinder assembly 1.3, the air source control system 1.8 and the dynamic pulley chain assembly 1.6 for protection of the internal power transmission assembly.

[0027] The reciprocating lifting support 1.2 is an L-shaped structure with a vertical part 1.2.1 and a horizontal part 1.2.2 welded together, and a set of guide wheels 1.2.3 are arranged at the four corners of the vertical part 1.2.1 through bearing shafts, the four sets of guide wheels 1.2.3 are divided into two groups on the vertical sides and are slidingly nested in the vertical slides inside the main frame 1.1, and the vertical part 1.2.1 is fixedly connected to the chain assembly in the dynamic pulley chain assembly 1.6; the horizontal part 1.2.2 is fixedly connected to the bottom of the roller line 1.4, and a set of rubber buffer pads 1.2.4 are arranged at the four corners of the horizontal part 1.2.2.

[0028] Under the drive of the jacking cylinder assembly 1.3, the cylinder rod extends and drives the dynamic pulley assembly to move upward, the chain assembly transmits an upward force to the reciprocating lifting support 1.2, the guide wheels 1.2.3 are constrained by the side slides of the main frame 1.1, and the reciprocating lifting support 1.2 can only drive the roller line 1.4 to move in the vertical direction, and the speed of upward movement is twice the extension speed of the cylinder rod.

[0029] In order to improve the conveying efficiency of the material box and the positioning accuracy during conveying, a set of blocking mechanisms 1.5 are arranged inside the roller line 1.4, which include two sets of cranks 1.5.1 mounted on the side of the roller line frame 1.4.1 and a set of stop cylinders 1.5.2, the two ends of each set of cranks 1.5.1 are shaft-connected to the roller line frame 1.4.1, and one end of each set of cranks 1.5.1 is coaxially connected to a set of stop rods 1.5.3, the output shaft end of the stop cylinder 1.5.2 is coaxially connected to the other end of one set of cranks 1.5.1 opposite to the stop rod 1.5.3, and a set of connecting rods 1.5.4 are transversely connected between the two sets of stop rods 1.5.3; under the drive of the stop cylinder 1.5.2, one set of cranks 1.5.1 rotates around the shaft and drives one set of stop rods 1.5.3 to move in a circular motion, the other set of stop rods 1.5.3 synchronously moves in a circular motion under the transmission of the connecting rod 1.5.4, and the other set of cranks 1.5.1 at the far end synchronously rotates around the shaft;

[0030] When the blocking control instruction is triggered, the cylinder rod of the blocking cylinder 1.5.2 is extended, the blocking rod 1.5.3 drives the connecting rod 1.5.4 to rotate to the highest point of the circumference, at this time, the connecting rod 1.5 is 10-20mm higher than the roller surface of the roller line 1.4, so as to prevent the material box from continuing to move forward. When the reset instruction is received, the cylinder rod of the blocking cylinder 1.5.2 is retracted, the blocking rod 1.5.3 drives the connecting rod 1.5.4 to rotate to the lowest point of the circumference, at this time, the connecting rod 1.5 is lower than the roller surface of the roller line 1.4, and the material box can continue to travel along the roller line 1.4.

[0031] As the above content, the embodiments given in the drawings are only preferred schemes for realizing the purpose of the present application. Those skilled in the art can be inspired by the embodiments and directly deduce other alternative structures meeting the design concept of the present application. Other structure features obtained by the embodiments also belong to the scope of the present application.

Claims

1. A reciprocating elevator characterized by: The utility model relates to a vertical reciprocating lifting mechanism, including a main frame, a reciprocating lifting support is slidably connected to one side of the main frame, a jacking cylinder assembly, a gas source control system for controlling the extension and retraction of the cylinder and a movable pulley chain assembly are arranged on the other side of the main frame, the jacking cylinder assembly is drivenly connected to the reciprocating lifting support through the movable pulley chain assembly to drive the reciprocating lifting support to vertically reciprocate, a roller line for horizontally conveying a feeding box is arranged on the reciprocating lifting support.

2. The reciprocating lift of claim 1, wherein: The reciprocating lifting support is in L-shaped structure with a vertical part and a horizontal part welded together, a group of guide wheels are arranged at four corners of the vertical part through bearing shafts, the four groups of guide wheels are divided into two groups on the vertical sides and are slidably nested in vertical slides inside the main frame, and the vertical part is fixedly connected to a chain assembly in the movable pulley chain assembly; the horizontal part is fixedly connected to the bottom of the roller line.

3. The reciprocating lift of claim 1, wherein: A group of blocking mechanisms are arranged inside the roller line, including two groups of cranks arranged on the side of the roller line frame and a group of stop cylinders, both ends of each group of cranks are arranged on the roller line frame through shafts, one end of each group of cranks is coaxially connected to a group of stop rods, and the output shaft end of the stop cylinder is coaxially connected to the other end of one group of cranks opposite to the stop rods, and a group of connecting rods are transversely connected between the two groups of stop rods.

4. The reciprocating lift as claimed in claim 1, 2 or 3, characterized in that: The movable pulley chain assembly includes a fixed pulley assembly arranged on the main frame, a movable pulley assembly connected to the output shaft end of the jacking cylinder assembly, and a chain assembly closed loop wound between the fixed pulley assembly and the movable pulley assembly, and the chain assembly is fixedly connected to the reciprocating lifting support.

5. The reciprocating lift as claimed in claim 1, 2 or 3, characterized in that: Two pairs of limiting blocks vertically symmetrically distributed are arranged on the lifting track of the reciprocating lifting support and on both sides inside the main frame.

6. The reciprocating lift as claimed in claim 1, 2 or 3, characterized in that: At least one group of photoelectric detection assemblies are arranged on the side of the main frame.

7. The reciprocating lift as claimed in claim 1, 2 or 3, characterized in that: A protective net is arranged on the outside of the main frame on the side where the jacking cylinder assembly, the gas source control system and the movable pulley chain assembly are arranged.

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