CN217779991U - Tobacco leaf spreading and feeding platform - Google Patents

Abstract

The tobacco leaf spreading and feeding platform comprises a lifting transmission mechanism and a lifting table board; the lifting transmission mechanism comprises a speed reducer, a universal coupling and a mechanical cylinder; the speed reducer is connected with the mechanical cylinder through the universal coupling, the lifting table top is connected with the mechanical cylinder, wherein the speed reducer provides power and drives the universal coupling, the universal coupling drives a worm gear in the mechanical cylinder through rotation, and the worm gear drives the ball screw to rotate, so that the lifting table top is lifted and lowered. Combine to select two kinds of shop leaf modes of leaf cigarette and bale of hemp cigarette, the utility model relates to a comprehensive shop leaf material loading platform that not only is fit for selecting leaf cigarette frame but also satisfies bale of hemp cigarette. The leaf spreading worker lifts the lifting table board to the optimal position and spreads leaves according to individual requirements, so that the stooping frequency is reduced, and the labor efficiency is improved.

Description

Tobacco leaf spreading and feeding platform

Technical Field

The utility model relates to a tobacco industry field especially relates to a material loading platform of selection leaf cigarette frame and bale of hemp cigarette.

Background

The leaf spreading process is the first process of the threshing and redrying production line, the traditional feeding mode is that the iron frame for the selected tobacco leaves is loaded, the burdened tobacco leaves are placed on a fixed platform, the tobacco leaves are manually grabbed by a leaf spreading worker, and the tobacco leaves are scattered and then placed on a leaf spreading belt. After one-time leaf laying, the leaf laying worker needs to perform the mechanical actions of heavy stoop, leaf holding and leaf laying. According to statistics, leaf laying of one cigarette is completed, and each person needs to bend down for nearly one hundred times per shift. Frequent stooping greatly increases the labor intensity of leaf spreading workers and reduces the leaf spreading efficiency. The frequent and long-time stooping can cause certain harm to lumbar vertebrae, is not beneficial to the occupational health of the leaf workers, and cannot ensure the stability of the leaf workers.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned problem among the prior art, provide the spreading leaf material loading platform for the cigarette, can reduce spreading leaf worker intensity of labour, improve the material loading platform of spreading leaf efficiency, realize humanized spreading leaf for the enterprise.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the tobacco leaf spreading and feeding platform comprises a lifting transmission mechanism and a lifting table board; the lifting transmission mechanism comprises a speed reducer, a universal coupling and a mechanical cylinder; the speed reducer is connected with the mechanical cylinder through the universal coupling, the lifting table top is connected with the mechanical cylinder, wherein the speed reducer provides power and drives the universal coupling, the universal coupling drives a worm gear in the mechanical cylinder through rotation, and the worm gear drives the ball screw to rotate, so that the lifting table top is lifted and lowered.

Two groups of mechanical cylinders and two groups of universal couplings are symmetrically arranged respectively.

The utility model also comprises a sliding component and a frame, wherein the sliding component comprises a guide rail and a sliding block, or a guide rail and a guide wheel; the guide rails are vertically fixed on two sides of the rack, the sliding blocks or the guide wheels are arranged on the guide rails, and the sliding blocks or the guide wheels are fixedly connected with the lifting table board.

The middle part of the front end of the lifting table top is provided with a feeding slope with an inclination angle.

And notches are respectively arranged on two sides of the rear end of the lifting table top.

The utility model discloses still include the spacing buffer of anticollision, the rear end top of lift mesa is located to the spacing buffer of anticollision, the spacing buffer of anticollision comprises the steel sheet on upper strata and the polyurethane buffer block of lower floor.

The upper limit position and the lower limit position of the lifting stroke of the lifting transmission mechanism are respectively provided with an in-place control switch which is an upper in-place switch and a lower in-place switch.

The utility model discloses still include two travel limit switch, locate the switch that targets in place and the outside of the switch that targets in place down respectively to play the guard action when preventing to target in place the control switch inefficacy.

The utility model discloses still include the control key, the control key includes scram switch, starting switch, locking switch and foot switch.

The utility model discloses still include audible-visual annunciator, audible-visual annunciator adopts the tricolor lamp, and wherein, red representative goes up spacing fault indication, and yellow representative lower spacing fault indication, green representative operation instruction.

Compared with the prior art, the utility model discloses technical scheme obtains beneficial effect is:

compared with the traditional leaf paving platform, the utility model has the advantages that when the leaf selecting cigarette is produced, the leaf selecting cigarette frame is placed on the lifting table surface of the feeding platform, so that the lifting adjustment of the leaf selecting cigarette frame is realized; the leaf spreading worker can lift the leaf selecting tobacco frame to the optimal leaf spreading position at a constant speed along with the lifting table board through a control key according to the height and the leaf spreading habit of the leaf spreading worker, so that the bending times of the leaf spreading worker are greatly reduced. When the jute wrapped tobacco is produced, the lifting table top is lifted to the optimal position by the leaf spreading worker and then locked, the jute wrapped tobacco is placed on the lifting table top by the carrying worker, and the leaf spreading worker can directly carry out leaf spreading processes such as unpacking and the like at the moment, so that humanized leaf spreading is realized.

Combine to select two kinds of spreading leaf modes of leaf cigarette and bale of hemp cigarette, the utility model relates to a comprehensive spreading leaf material loading platform that not only is fit for selecting leaf cigarette frame but also satisfies bale of hemp cigarette, the leaf worker can be according to self height and spread the leaf habit, and control spreading leaf height effectively reduces the leaf worker frequency of bowing, and greatly reduced spreading leaf worker's intensity of labour reduces occupational disease and takes place the probability, is favorable to spreading leaf worker's occupational health.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of a top-down structure of the elevating table;

FIG. 4 is a schematic side view of the elevating platform;

FIG. 5 is a schematic structural view of the bump limiting and cushioning device;

FIG. 6 is a schematic structural view of a guide rail slider;

FIG. 7 is an electrical schematic of the control system;

FIG. 8 is a schematic view of feeding in a leaf-spreading mode of a selected leaf tobacco;

FIG. 9 is a schematic diagram showing the ascending of the selected leaf tobacco after feeding in the leaf-spreading mode;

fig. 10 is a schematic view of burp tobacco leaf-spreading mode feeding.

Reference numerals: speed reducer 1, universal joint 2, machinery jar 3, guide rail 4, guide pulley 5, lift mesa 6, frame 7, spreading leaf belt feeder 8, steel sheet 91, polyurethane buffer block 92, worm wheel 51, ball 52, flexible dirt proof boot 53, material loading slope 61, breach 62, deep floor 63, otic placode 64.

Detailed Description

In order to make the technical problem, technical solution and beneficial effects of the present invention to be solved clearer and more obvious, the following description is made in detail by combining the accompanying drawings and embodiments.

As shown in fig. 1 to 4, the tobacco leaf spreading and feeding platform of the embodiment is arranged in front of a leaf spreading belt conveyor 8, and comprises a lifting transmission mechanism and a lifting table top 6;

the lifting transmission mechanism comprises a speed reducer 1, a universal coupling 2, a mechanical cylinder 3, a sliding assembly and a rack 7; the mechanical cylinders 3 and the universal couplings 2 are respectively symmetrically provided with two groups, the speed reducer 1 is connected with the mechanical cylinders 3 through the universal couplings 2, and the lifting table board 6 is connected with the mechanical cylinders 3; the sliding assembly comprises a guide rail 4 and guide wheels 5, the guide rail 4 is vertically fixed on two sides of a rack 7, the guide wheels 5 are arranged on the guide rail 4 in a rolling manner, and the guide wheels 5 are fixedly connected with a lifting table board 6; the specific form of the sliding assembly is not limited, and the structural form of the sliding block and the guide rail shown in fig. 6 can also be adopted;

wherein, the speed reducer 1 provides power and drives the universal coupling 2, the universal coupling 2 drives the worm wheel 51 in the mechanical cylinder 3 through the rotation, the worm wheel 51 drives the ball screw 52 to rotate, thereby realizing the ascending and descending of the lifting table-board 6; in this embodiment, the mechanical cylinder 3 uses a worm gear and screw transmission mechanism to stably raise and lower the lifting table 6 at a constant speed, so as to provide power for the lifting table 6.

In the leaf spreading process, the lifting table top 6 frequently rises or falls along with the reduction of the height of the tobacco leaves, so that in order to ensure safety and reduce the inertia and impact force of the lifting table top 6, a reducing motor with a brake (the model is RV75-2.2kw/100B 5) is adopted, so that the inertia and impact force of instant halt can be reduced when the up-and-down movement is stopped or the vertical hoisting is stopped, the motor is prevented from slipping downwards when the machine is halted, and the anti-falling protection function is achieved.

The structure of the universal coupling 2 has larger angular compensation capability, so that the two shafts are not on the same axis, the two connected shafts can continuously rotate under the condition of an included angle of the axes, and torque and motion are reliably transmitted. Therefore, by adopting the universal coupling 2, the problem that an included angle exists between the installation positions of the mechanical cylinder 3 and the speed reducer 1 can be solved, and the mechanical motion synchronization of the mechanical cylinder 3 is ensured.

As shown in fig. 2, the mechanical cylinder 3 is the most critical component of the lifting transmission mechanism, and mainly comprises a worm gear 51, a ball screw 52, a telescopic dustproof sleeve 53 and a double-nut fixing device; wherein the ball screw 52 does positive and negative rotation movement, and the double nuts play a role of fixing; the telescopic dustproof sleeve 53 mainly plays a role in dustproof sealing, prevents dust and broken tobacco leaves from entering the ball screw 52, and ensures transmission precision. In this embodiment, the mechanical cylinder parameters are as follows: a ball screw SFU3210-5, a nut DFU3210-5; the ball screw and the double nuts are subjected to high-frequency treatment, and the hardness reaches HRC56; a dynamic rated load of 6890Kgf and a static rated load of 13500Kgf.

The guide rails 4 are vertically fixed on two sides of the rack 7, play a role in guiding and bearing the radial force of equipment, and are important devices for the stability of the lifting transmission mechanism. When the lifting table top 6 is lifted, the guide wheel 5 of the lifting table top 6 rolls up and down in the guide rail 4, so that the lifting table top 6 is lifted more smoothly and stably. The guide wheel 5 is matched with the guide rail 4, is fixed on an ear plate 64 of the lifting table board 6, mainly plays a role in guiding and bearing the radial force of equipment, and is an important device for the stability of a lifting transmission mechanism.

The lifting table top 6 is an important mechanism of the comprehensive tobacco leaf laying and feeding platform and mainly comprises a table top, an ear plate and the like. The lifting table board 6 is mainly used for placing cigarette frames and cigarette packets, and is connected with the double-nut fixing device of the mechanical cylinder 3 through the ear plate 64, so that the lifting table board 6 can ascend and descend along with the mechanical cylinder 3. The table top is made of a t 15-40 Cr stainless steel composite plate, and the manufacturing process adopts one-step forging and pressing and heat treatment, so that the rigidity of the plate is increased, and the load-carrying capacity is improved to more than 2 tons.

As shown in fig. 3 to 4, the lifting table top 6 is arranged in a horizontal L shape, and a reinforcing rib plate 63 is arranged at the turning part. Notches 62 are respectively arranged at two sides of the rear end of the lifting table board 6. When the tobacco selecting cigarette is produced, the rear end supporting leg of the cigarette frame is placed at the position of the notch 62 of the table top, and the front end supporting leg is exposed outside the table top. In order to facilitate loading of the hydraulic vehicle, a loading slope 61 with an inclination angle of 11 degrees is processed at the middle part of the front end of the lifting table top 6.

The lug plate 64 is an important component of the lifting table top 6 and is a T-shaped plate in structure, the lug plate 64 is fixed on the vertical surface of the table top, a ball screw double nut of the mechanical cylinder 3 is fixed on the lug plate 64, the lifting table top 6 is connected with the lifting transmission mechanism, and the lifting table top 6 ascends and descends along with the lifting transmission mechanism.

The embodiment also comprises an anti-collision limiting buffer device, and the structure of the anti-collision limiting buffer device is shown in figure 5. The anti-collision limiting buffer device is arranged above the rear end of the lifting table top and consists of an upper 10 mm-thick steel plate 91 and a lower polyurethane buffer block 92. The anti-collision limiting buffer device is mainly used for limiting the stroke position of the table top and preventing equipment from mechanical damage and personal accidents caused by faults.

In this embodiment, a control system schematic diagram is shown in fig. 7. The control system comprises a control key, an in-place control switch, a travel limit switch and an alarm.

The control keys comprise an emergency stop switch, a starting switch, a locking switch and a foot switch (up and down).

Scram switch (SB 1): the emergency stop device can be used for emergency stop and power failure of equipment under the condition of accidents.

Start button (SB 2): when the equipment is powered on, a start button is pressed, an indicator lamp needs to be provided, and the indicator lamp is normally on in a power-on state.

Locking switch (SB 3): the leaf spreading worker locks the lifting table top when adjusting the lifting table top to the optimal height, and the table top is prevented from being operated by mistakenly stepping on the foot switch. A two position (lock/power on) lock switch is used.

Foot switches (SB 4, SB 5): the double-contact foot switch is used for controlling the lifting table top to ascend (SB 4) or descend (SB 5), the height of the lifting table top is controllable in real time, and a tobacco leaf spreading worker can conveniently control the height of tobacco leaves according to the height of the tobacco leaf spreading worker.

The upper limit position and the lower limit position of the lifting stroke of the lifting transmission mechanism are respectively provided with an in-place control switch, namely an upper in-place switch and a lower in-place switch, and the lifting transmission mechanism can stop at any position within the range of the control switches and cannot fall down. The upper in-place switch (SB 7) is mainly used for limiting the preset lifting maximum height of the lifting table top; when the lifting table surface rises to the highest point, the upper in-place switch is triggered, and the equipment stops running; the lower in-place switch (SB 6) mainly prevents the lifting table top from being placed at the lowest position, stops the equipment from descending in time and protects the lifting transmission mechanism.

The two travel limit switches are respectively arranged outside the upper in-place switch and the lower in-place switch and mainly provide protection and limit functions. The upper limit switch (SB 8) mainly plays a role in protecting when the upper limit switch (SB 6) fails; the lower limit switch (SB 9) is mainly used for preventing the lower limit switch (SB 7) from failing or taking the function of protecting equipment when foreign matters exist below the table board.

The embodiment also comprises an audible and visual alarm which is started when the table top ascends or descends and reminds peripheral operating personnel to operate, so that the personnel injury caused by mistaken collision is prevented. The audible and visual alarm adopts three-color lamps, wherein red represents upper limit fault indication, yellow represents lower limit fault indication, and green represents operation indication.

As shown in fig. 8-10, the utility model is a comprehensive leaf-spreading and feeding platform which is suitable for leaf-selecting tobacco frames and hemp-wrapped tobacco. The leaf spreading worker lifts the lifting table board to the optimal position and spreads leaves according to individual requirements, so that the stooping frequency is reduced, and the labor efficiency is improved.

Claims (10)

1. Tobacco leaf spreading and feeding platform is characterized in that: comprises a lifting transmission mechanism and a lifting table board; the lifting transmission mechanism comprises a speed reducer, a universal coupling and a mechanical cylinder; the speed reducer passes through universal joint and connects mechanical cylinder, the lift mesa links to each other with mechanical cylinder, wherein, provides power and drives universal joint through the speed reducer, and universal joint drives the worm wheel in the mechanical cylinder through the rotation effect, and the worm wheel drives ball and rotates to realize the rising and the decline of lift mesa.

2. The tobacco leaf spreading and feeding platform of claim 1, wherein: the mechanical cylinder and the universal coupling are respectively and symmetrically provided with two groups.

3. The tobacco leaf spreading and feeding platform of claim 1, wherein: the device also comprises a sliding assembly and a rack, wherein the sliding assembly comprises a guide rail and a sliding block, or a guide rail and a guide wheel; the guide rails are vertically fixed on two sides of the rack, the sliding blocks or the guide wheels are arranged on the guide rails, and the sliding blocks or the guide wheels are fixedly connected with the lifting table board.

4. The tobacco leaf spreading and feeding platform of claim 1, wherein: the middle part of the front end of the lifting table top is provided with a feeding slope with an inclination angle.

5. The tobacco leaf spreading and feeding platform of claim 1, wherein: and notches are respectively arranged at two sides of the rear end of the lifting table board.

6. The tobacco leaf spreading and feeding platform of claim 1, wherein: the lifting table further comprises an anti-collision limiting buffer device, the anti-collision limiting buffer device is arranged above the rear end of the lifting table top, and the anti-collision limiting buffer device is composed of an upper steel plate and a lower polyurethane buffer block.

7. The tobacco leaf spreading and feeding platform of claim 1, wherein: the upper limit position and the lower limit position of the lifting stroke of the lifting transmission mechanism are respectively provided with an in-place control switch which is an upper in-place switch and a lower in-place switch.

8. The tobacco leaf spreading and feeding platform of claim 7, wherein: the automatic control device also comprises two travel limit switches which are respectively arranged outside the upper in-place switch and the lower in-place switch so as to prevent the in-place control switch from playing a protection role when the in-place control switch fails.

9. The tobacco leaf spreading and feeding platform of claim 1, wherein: the emergency stop control system further comprises control keys, and the control keys comprise an emergency stop switch, a starting switch, a locking switch and a foot switch.

10. The tobacco leaf spreading and feeding platform of claim 1, wherein: the alarm also comprises an audible and visual alarm which adopts a three-color lamp, wherein red represents upper limit fault indication, yellow represents lower limit fault indication, and green represents operation indication.

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