An automated material lifting device

Abstract

An automatic material lifting equipment, including ground platform, wet granulator platform arranged above the ground platform, lifting column fixed on the ground platform through the mounting plate, material lifting platform arranged on one side of the lifting column through the sliding block mechanism, limiting assembly and anti-falling mechanism arranged on the lifting column, hydraulic oil cylinder and guardrail system; The lifting column is provided with a sliding groove, the sliding block mechanism is slidably arranged in the sliding groove, and a chain wheel is mounted on the top of the sliding groove; The lifting column passes through the wet granulator platform, and the top is fixedly connected with the ceiling through the top mounting group; The both sides of the sliding groove are provided with column grooves; One end of the hydraulic oil cylinder is arranged at the bottom of the lifting column, and the other end is connected with the transmission chain; The transmission chain passes through the chain wheel and is connected with the sliding block mechanism. The utility model can automatically lift the material to the wet granulator operation platform, replace the traditional manual carrying mode, and has the advantages of reasonable structure design, simple operation, stable operation, high safety and wide applicability.

Description

Technical Field

[0001] This utility model belongs to the field of material lifting equipment, specifically relating to an automated material lifting device, which is particularly suitable for the wet granulation process of traditional Chinese medicine granules in the pharmaceutical industry. Background Technology

[0002] Traditional Chinese medicine granules are one of the most widely used solid dosage forms on the market. In their production process, wet granulation is the core step. The wet granulation process usually involves mixing raw materials such as extracts, binders, and powdered excipients to form a uniform soft mass, which is then granulated, dried, and sieved to complete the product preparation.

[0003] During production, the operating platform of a wet granulation machine is typically about 2 meters above the ground, requiring operators to move tens to hundreds of kilograms of material from the ground to the platform. For a long time, most pharmaceutical companies have relied on manual handling, a method with numerous drawbacks. For example, frequent handling of heavy objects easily leads to worker fatigue and even injury; manual handling is slow, limiting the continuity of the granulation process; working at height combined with the weight of the material increases the risk of tipping and falling accidents; and frequent personnel movement hinders cleanroom management. Therefore, there is an urgent need for a structurally sound, safe, and highly adaptable lifting device to improve overall production efficiency and reduce the labor intensity of operators. Summary of the Invention

[0004] The purpose of this utility model is to provide an automated material lifting device, which has the characteristics of compact structure, simple operation, and safety and reliability, and can effectively solve the problems of low efficiency, poor safety and high labor intensity of manual handling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated material lifting device, comprising a ground platform, a wet granulation machine platform set above the ground platform, a lifting column fixed to the ground platform by a mounting base plate, a material lifting platform set on one side of the lifting column by a slider mechanism, a limiting component and an anti-fall mechanism set on the lifting column, a hydraulic cylinder and a guardrail system.

[0006] The lifting column is equipped with a slide groove, and the slider mechanism is slidably installed in the slide groove. A sprocket is installed at the top of the slide groove. The lifting column passes through the wet granulation machine platform, and its top is fixedly connected to the ceiling through a top mounting assembly. The slide groove has column grooves on both sides.

[0007] One end of the hydraulic cylinder is located at the bottom of the lifting column, and the other end is connected to the drive chain; the drive chain passes through the sprocket and is connected to the slider mechanism; the hydraulic cylinder is connected to the hydraulic pump station set on the ground platform through the hydraulic oil circuit.

[0008] Furthermore, the slider mechanism includes a body, bearings mounted at the four corners of the body via bearing mounting seats, rollers on both sides of the body, a slider mechanism connecting plate fixed to the back of the body, springs, and two stops; symmetrical openings for the stops to pass through are provided on both sides of the body; one end of the stop passes through the opening, and the other end is connected to the transmission chain via a small pin, and the stop is fixed to the body via a large pin; the bearings are slidably connected to the inner wall of the slide groove; a spring is connected to each part of the body near the opening, and the other end of the spring is connected to the corresponding stop.

[0009] Furthermore, the material lifting platform includes a carrying platform and a material lifting platform connecting plate installed on one side of the carrying platform; the material lifting platform connecting plate is connected to the slider mechanism connecting plate on the slider mechanism.

[0010] Furthermore, the limiting component consists of a limiting rod installed on the top of the connecting plate of the material lifting platform and a limiting sensor fixed on the lifting column.

[0011] Furthermore, the fall protection mechanism includes a cylinder, adjusting blocks, adjusting rods, fall protection blocks, and floating joints; two adjusting blocks are provided, which are symmetrically fixed to the adjusting rods by bolts, and the adjusting rods have a slotted hole in the middle; the cylinder is fixed between the two adjusting blocks, and one end of the cylinder is connected to the fall protection block through the floating joint; the fall protection block is set in the slotted hole, and one end of the block is fixed to the two adjusting blocks by a pin; the adjusting rod is fixed to one side of the lifting column by two fixing plates.

[0012] Furthermore, the guardrail system includes a first-level platform guardrail gate fixed on the ground platform and corresponding to the entrance of the material lifting platform, a lifting platform guardrail gate fixed at the entrance of the material lifting platform, and a second-level platform guardrail gate fixed on the wet granulation machine platform; each of the first-level platform guardrail gate, the lifting platform guardrail gate, and the second-level platform guardrail gate is equipped with a proximity switch, and the signal of the proximity switch is connected in series with the hydraulic pump station.

[0013] In this invention, the material lifting platform is connected to the slider mechanism, which is connected to the transmission chain. The hydraulic cylinder is also connected to the transmission chain. A hydraulic pump station drives the hydraulic cylinder, causing the lifting platform to rise or fall. Limiting components allow the lifting platform to be raised to a designated position, opening the safety railing and releasing the material, thus completing the vertical material transport between the first and second floors. Anti-fall mechanisms installed on the lifting column and mechanical anti-fall mechanisms in the slider mechanism prevent unexpected descent of the lifting platform. Three interlocking safety doors ensure safe operation. This lifting equipment automatically lifts materials to the wet granulation machine's operating platform, replacing traditional manual handling methods. It has advantages such as reasonable structure, simple operation, stable operation, high safety, and wide applicability; solving the long-standing problems of difficult and inefficient material handling in the wet granulation process. Attached Figure Description

[0014] Figure 1This is an overall schematic diagram of the material lifting platform of this utility model located on the second-floor wet granulation machine platform;

[0015] Figure 2 for Figure 1 Side view;

[0016] Figure 3 To illustrate the connection between the column and the slider mechanism;

[0017] Figure 4 This is a three-dimensional structural diagram of the slider mechanism;

[0018] Figure 5 This is a planar schematic diagram of the slider mechanism;

[0019] Figure 6 A schematic diagram of the grooves created on the column to enhance its shape;

[0020] Figure 7 This is a schematic diagram of a fall protection mechanism;

[0021] Figure 8 This is a schematic diagram of the material hoisting platform. Detailed Implementation

[0022] Embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the present invention. Where specific techniques, connections, or conditions are not specified in the embodiments, they are performed in accordance with the techniques, connections, or conditions described in the literature in the field or according to the product instructions. Materials, instruments, or equipment used without specified manufacturers are all conventional products that can be obtained through purchase.

[0023] like Figures 1-3 as well as Figure 5 As shown, the present invention provides an automated material lifting device, including a ground platform 4, a wet granulation machine platform 2 set above the ground platform 4, a lifting column 10 fixed on the ground platform 4 by a mounting base plate 3, a material lifting platform 5 set on one side of the lifting column 10 by a slider mechanism 9, a limiting component 1 and an anti-fall mechanism 12 set on the lifting column 10, a hydraulic cylinder 16 and a guardrail system.

[0024] The lifting column 10 is provided with a slide groove 101, and the slider mechanism 9 is slidably disposed in the slide groove 101. A sprocket 18 is installed at the top of the slide groove 101. The lifting column 10 passes through the wet granulation machine platform 2, and its top is fixedly connected to the ceiling through the top mounting assembly 11. A row of column grooves 102 are provided vertically on both sides of the slide groove 101. The lifting column 10 is fixed to the ground and the ceiling by the mounting base plate 3 and the top mounting assembly 11, which has strong anti-overturning ability and a solid structure.

[0025] One end of the hydraulic cylinder 16 is located at the bottom of the lifting column 10, and the other end is connected to the transmission chain 17. The transmission chain 17 passes through the sprocket 18 and is connected to the slider mechanism 9. The hydraulic cylinder 16 is connected to the hydraulic pump station 15 located on the ground platform 4 through the hydraulic oil circuit. The hydraulic pump station 15 drives the hydraulic cylinder 16 to perform telescopic movements, and drives the transmission chain 17. The transmission chain 17 then drives the slider mechanism 9 to move in the slide groove 101, thereby realizing the up and down movement of the material lifting platform 5.

[0026] As a further implementation of this plan, such as Figures 4-6 As shown, the slider mechanism 9 includes a body 19, bearings 21 mounted at the four corners of the body 19 via bearing mounting seats 20, rollers 24 mounted on both sides of the body 19, a slider mechanism connecting plate 901 fixed to the back of the body 19 (for connection with the material lifting platform connecting plate 502), a spring 22, and two stops 23; symmetrical openings 903 are provided on both sides of the body 19 to allow the stops 23 to pass through, with one stop 23 corresponding to one opening 903; one end of the stop 23 passes through the opening 903, and the other end passes through a small pin. 902 is connected to the transmission chain 17, and the stop block 23 is fixed to the machine body 19 by the large pin 904; the bearing 21 is slidably connected to the inner wall of the slide groove 101, and the roller 24 can make the slider mechanism 9 slide up and down in the slide groove 101, thereby driving the material lifting platform to move up and down; a spring 22 is connected to each part of the machine body 19 near the opening 903, and the other end of the spring 22 is connected to the corresponding stop block 23; under normal working conditions, the transmission chain 17 is in a tensile state, the two springs 22 are in a tensile state, and the stop block 23 is in a tensile state. Figure 4 , Figure 5 At the indicated position, when the transmission chain 17 breaks, the stop block 23 rotates rapidly under the tension of the spring 22, locking into the nearest column groove 102 on the descent path of the lifting platform, thus achieving rapid braking in case of accidental platform slippage. The material lifting platform 5 includes a loading platform 501 and a material lifting platform connecting plate 502 installed on one side of the loading platform 501; the material lifting platform connecting plate 502 is connected to the slider mechanism connecting plate 901 on the slider mechanism 9.

[0027] As a further implementation of this plan, such as Figure 2 As shown, the limiting component 1 consists of a limiting rod 13 set on the top of the material lifting platform connecting plate 502 and a limiting sensor 14 fixed on the lifting column 10. When the material lifting platform 5 rises to the position of the wet granulation machine platform 2 on the second floor, the limiting rod 13 triggers the limiting sensor 14, and the material lifting platform 5 stops moving, thereby achieving the limiting function.

[0028] As a further implementation of this plan, such as Figure 2 and Figure 7As shown, the fall arrest mechanism 12 includes a cylinder 26, adjusting blocks 27, adjusting rods 29, fall arrest blocks 31, and a floating joint 28. Two adjusting blocks 27 are symmetrically fixed to the adjusting rods 29 by bolts, and the adjusting rods 29 have a slotted hole in the middle. The cylinder 26 is fixed between the two adjusting blocks 27, and one end of it is connected to the fall arrest block 31 via the floating joint 28. The fall arrest block 31 is located in the slotted hole, and one end of it is fixed to the two adjusting blocks 27 by a pin 30. The adjusting rod 29 is fixed to one side of the lifting column 10 by two fixing plates 25. The fall arrest block 31 rotates under the drive of the cylinder 26. The fall arrest mechanism 12 is fixed to the adjusting rod 29 by the two adjusting blocks 27; that is, by tightening the bolts on the adjusting blocks 27, the two adjusting blocks 27 grip the adjusting rod 29. Loosen the bolts on the adjusting block 27, and the anti-fall mechanism 12 can move up and down on the adjusting rod 29, thereby adjusting the position of the anti-fall mechanism 12 to below the material lifting platform 5.

[0029] The anti-fall block 31 pops out in the initial state, in the absence of air supply, or in a malfunctioning state, blocking the descent path of the material lifting platform 5 and preventing the material lifting platform 5 from falling unexpectedly due to hydraulic system leakage, transmission chain 9 breakage, or other malfunctions. When the material lifting platform 5 is in the normal rising or falling process, the cylinder 26 retracts to pull the anti-fall block 31 back, and the lifting platform can descend freely.

[0030] As a further implementation of this plan, such as Figure 1 As shown, the guardrail system includes a first-level platform guardrail gate 6 fixed on the ground platform 4 and corresponding to the entrance of the material lifting platform 5, a lifting platform guardrail gate 7 fixed at the entrance of the material lifting platform 5, and a second-level platform guardrail gate 8 fixed on the wet granulation machine platform 2. Each of the first-level platform guardrail gate 6, the lifting platform guardrail gate 7, and the second-level platform guardrail gate 8 is equipped with a proximity switch. The signal of the proximity switch is connected in series with the hydraulic pump station 15, forming an interlock. If any guardrail gate is not closed, the hydraulic pump station 15 cannot be started, and the material lifting platform 5 cannot operate. During the operation of the material lifting platform 5, if any guardrail gate is opened, the hydraulic pump station 15 immediately stops working to prevent accidental material falling or personnel injury.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automated material lifting device, characterized in that, Includes a ground platform (4), a wet granulation machine platform (2) set above the ground platform (4), a lifting column (10) fixed on the ground platform (4) by a mounting base plate (3), a material lifting platform (5) set on one side of the lifting column (10) by a slider mechanism (9), a limiting component (1) and a fall prevention mechanism (12) set on the lifting column (10), a hydraulic cylinder (16) and a guardrail system; The lifting column (10) is provided with a slide groove (101), and the slider mechanism (9) is slidably disposed in the slide groove (101). A sprocket (18) is installed at the top of the slide groove (101). The lifting column (10) passes through the wet granulation machine platform (2), and the top is fixedly connected to the ceiling through the top mounting assembly (11). The slide groove (101) is provided with column grooves (102) on both sides. One end of the hydraulic cylinder (16) is located at the bottom of the lifting column (10), and the other end is connected to the transmission chain (17); the transmission chain (17) passes through the sprocket (18) and is connected to the slider mechanism (9); the hydraulic cylinder (16) is connected to the hydraulic pump station (15) located on the ground platform (4) through the hydraulic oil circuit.

2. The automated material lifting equipment according to claim 1, characterized in that: The slider mechanism (9) includes a body (19), bearings (21) mounted at the four corners of the body (19) via bearing mounting seats (20), rollers (24) mounted on both sides of the body (19), a slider mechanism connecting plate (901) fixed on the back of the body (19), springs (22), and two stops (23); symmetrical openings (903) are provided on both sides of the body (19) to allow the stops (23) to pass through; one end of the stop (23) passes through the opening (903), and the other end is connected to the transmission chain (17) via a small pin (902), and the stop (23) is fixed on the body (19) via a large pin (904); the bearings (21) are slidably connected to the inner wall of the slide groove (101); a spring (22) is connected to each part of the body (19) near the opening (903), and the other end of the spring (22) is connected to the corresponding stop (23).

3. The automated material lifting equipment according to claim 2, characterized in that: The material lifting platform (5) includes a loading platform (501) and a material lifting platform connecting plate (502) installed on one side of the loading platform (501); the material lifting platform connecting plate (502) is connected to the slider mechanism connecting plate (901) on the slider mechanism (9).

4. The automated material lifting equipment according to claim 1, characterized in that: The limiting component (1) consists of a limiting rod (13) set on the top of the material lifting platform connecting plate (502) and a limiting sensor (14) fixed on the lifting column (10).

5. The automated material lifting equipment according to claim 1, characterized in that: The fall arrest mechanism (12) includes a cylinder (26), an adjusting block (27), an adjusting rod (29), a fall arrest block (31), and a floating joint (28). There are two adjusting blocks (27), which are symmetrically fixed to the adjusting rod (29) by bolts. The adjusting rod (29) has a strip hole in the middle. The cylinder (26) is fixed between the two adjusting blocks (27), and one end of it is connected to the fall arrest block (31) through the floating joint (28). The fall arrest block (31) is set in the strip hole, and one end of it is fixed to the two adjusting blocks (27) by a pin (30). The adjusting rod (29) is fixed to one side of the lifting column (10) by two fixing plates (25).

6. The automated material lifting equipment according to claim 1, characterized in that: The guardrail system includes a first-level platform guardrail gate (6) fixed on the ground platform (4) and corresponding to the entrance of the material lifting platform (5), a lifting platform guardrail gate (7) fixed at the entrance of the material lifting platform (5), and a second-level platform guardrail gate (8) fixed on the wet granulation machine platform (2); each of the first-level platform guardrail gate (6), the lifting platform guardrail gate (7), and the second-level platform guardrail gate (8) is equipped with a proximity switch, and the signal of the proximity switch is connected in series with the hydraulic pump station (15).

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