WO2019137257A1

WO2019137257A1 - Single column lifting mixer

Info

Publication number: WO2019137257A1
Application number: PCT/CN2018/125282
Authority: WO
Inventors: 熊洪峰
Original assignee: 宜春万申制药机械有限公司
Priority date: 2018-01-15
Filing date: 2018-12-29
Publication date: 2019-07-18
Also published as: CN108452737A

Abstract

Disclosed is a single column lifting mixer, comprising a lifting mechanism, a sliding block (13) and a rotating fork frame (15) for clamping a mixing container (16), wherein the lifting mechanism is connected to the sliding block (13) to drive the sliding block (13) to slide in a vertical direction, and the rotating fork frame (15) is connected to the sliding block (13) to move to a preset position under the drive of the sliding block (13); and the lifting mechanism comprises a linear actuator (5), the linear actuator (5) is internally provided with a threaded rod pair (19), the threaded rod pair (19) is provided with a self-locking thread and can expand and contract by means of thread transmission, a free end of the threaded rod pair (19) is connected to a pulley (9), the pulley (9) is sleeved with a lifting belt, one end of the lifting belt is fixed, and the other end of the lifting belt is connected to the sliding block (13).

Description

Single column lifting mixer

Technical field

The invention relates to the technical field of powder or particle mixing, in particular to a single column lifting mixer.

Background technique

In the prior art, the single-column lifting hopper mixer usually adopts hydraulic lifting. The main disadvantages of the hydraulic lifting structure include: environmental pollution caused by hydraulic oil leakage to the site, which brings difficulties to the cleaning and sanitation of the equipment; The settlement phenomenon, especially the crash phenomenon caused by the rupture of the hydraulic circuit; a fall arrest device is required (and cannot be set all the way).

Summary of the invention

It is an object of the present invention to provide a single column lift mixer to solve the above technical problems.

The invention provides a single column lifting mixer, comprising a lifting mechanism, a sliding block and a rotating fork frame for holding the mixing container, the lifting mechanism is connected with the sliding block, and is used for driving the sliding block to slide in the vertical direction, the rotating fork The frame is connected to the slider for moving to a preset position by the slider;

The lifting mechanism comprises an electric push rod, the electric push rod is provided with a screw pair, the screw pair has a self-locking thread, and can be telescoped by a screw drive, the free end of the screw pair is connected with a pulley, the pulley sleeve has a lifting belt, and the lifting belt One end is fixed and the other end is connected to the slider.

Further, the mixer further includes a column, the column is provided with a sliding slot formed by the parallel rails, and the slider is provided with a roller, and the roller is disposed in the sliding slot and can roll in the sliding slot.

Further, the lifting mechanism further includes a motor coupled to the electric push rod, the motor being provided with a speed reducer.

Further, the lifting belt is a chain.

Further, the stroke range of the slider is provided with a limit switch corresponding to the preset position of the rotary fork.

Further, the slider is coupled to the swing fork by a transmission mechanism.

Further, the transmission mechanism includes a motor reducer, and the motor reducer is connected to the rotary fork through a flange.

Further, the column is provided with a chain connecting plate, and one end of the chain is fixedly connected with the chain connecting plate.

Further, a top fixture for fixed attachment to the top of the space is attached to the top of the column.

Further, a base is connected to the bottom of the column.

Compared with the prior art, the utility model has the advantages that the electric push rod with the self-locking function is used for lifting, no need for a separate anti-drop device, no pollution to the environment during operation, simple structure, convenient lifting, and lift. Easy to control.

DRAWINGS

Figure 1 is a front elevational view of a single column hoist mixer of the present invention;

2 is a top plan view of a single column lift mixer of the present invention.

Number in the figure:

1-base; 2-column; 3-support; 4-turn shaft; 5--electric push rod; 6-cover box; 7-limit switch; 8-chain connecting plate; 9-pulley; 10-chain; Top fixing device; 12-drap tensioning mechanism; 13-slider; 14-transmission box; 15-spin fork; 16-mixing container; 17-lock nut; 18-rail; 19-screw pair; Roller; 21-motor.

Detailed ways

The present invention will be described in detail below with reference to the embodiments shown in the drawings, but these embodiments are not intended to limit the invention, the function, method, or structure of Equivalent transformations or substitutions are within the scope of the invention.

As shown in FIG. 1 , the embodiment provides a single column lifting mixer, comprising a lifting mechanism, a slider 13 and a rotating fork 15 for clamping the mixing container 16 . The lifting mechanism is connected with the slider 13 for The sliding slider 13 is slid in the vertical direction, and the rotating yoke 15 is connected to the slider 13 for moving to a preset position by the slider 13; the lifting mechanism comprises an electric push rod 5, and the electric push rod 5 is provided The screw pair 19 and the screw pair 19 have self-locking threads and can be expanded and contracted by a screw drive. The free end of the screw pair 19 is connected with a pulley 9 which is provided with a lifting belt (the lifting belt may be a chain 10 or may be For other lifting belts, one end of the lifting belt is fixed, and the other end is connected to the slider 13.

The single-column lifting mixer provided by the embodiment is lifted by the electric push rod with self-locking function, no need for a separate anti-drop device, no pollution to the environment during operation, simple structure, convenient lifting, easy lift control .

In this embodiment, the column is provided with a sliding slot formed by the parallel rails 18. The slider 13 is provided with a roller 20, and the two sets of rollers 20 are disposed in the sliding slot and can roll in the sliding slot. Through the design of the roller and the chute, the slider can be raised and lowered more stably.

The column 2 is assembled with the base 1 by screws or welding. The front side of the column 2 is a rail portion, the slider 13 can slide up and down in the rail, the rear side of the column 2 is an electric push rod mounting portion, the electric push rod 5 and the hinge shaft branch The seat 3 is connected, and the support 3 is screwed to the mounting plate on the rear side of the column 2.

The power side of the electric push rod 5 is connected with the motor 21 (equipped with a speed reducer), the other end is connected with the pulley 9, the pulley 9 is a double pulley structure, and the rear side of the column 2 is provided with a chain connecting plate 8, and the two chains 10 are symmetrically distributed. On the two pulleys on the electric push rod, one end is fixed on the chain connecting plate 8 through the connecting member, the other end is fixed on the sliding block 13, the sliding block 13 is screw-fixedly connected with the transmission case 14, and the motor is decelerated in the transmission box 14. The connecting fork is connected to the rotating fork frame 15 through a connecting flange. The rotating fork frame 15 is provided with two fork rods for clamping the

mixing container

16, 11 as a top fixing device.

Referring to Figures 1 and 2, the swivel yoke 15 causes the mixing container 16 to form an angle of 30 degrees with its axis of symmetry. In addition, the mixer is equipped with an electrical console. In operation, the fork rod is at the base position, and the mixing container 16 is pushed into the rotary fork frame 15. The two fork tubes of the mixing container 16 are respectively engaged with the two fork rods of the rotary fork frame 15 until the inner cone and the fork rod of the fork tube wall The outer cone is in contact. A washer with an outer cone is added to the two forks, and the mixing container 16 is locked by the lock nut 17, and the console is started to control the motor on the electric push rod 5 to rotate in a predetermined direction, through the shifting of the reducer, the electric push rod The screw pair 19 in the 5 drives the pulley 9 to rise, and the chain also drives the slider 13 to rise. The stroke of the electric push rod 5 is 1/2 of the stroke of the slider, so that the rotary fork 15 holding the mixing container 16 rises to the mixing. Bit, limit switch 7 stops the PLC (console) signal device from rising, starts the mixing program, mixes according to the programmed mixing parameters, reaches the mixing time, the device stops mixing, and the positioning is completed (the casters of the mixing container 16 are lowered downwards) ), once again raised to the material level of the equipment, at this time, the other materials can be used to separate the materials in the mixing container, or it can be directly lowered to the base position without rising to the material level. Subsequently, the lock nut 17 is loosened, the washer is taken out, and the mixing container 16 is pulled out.

The single column lifting mixer provided in this embodiment has the following technical effects:

1. The electric push rod is driven by thread. According to the actual speed, the optimal lifting speed is 20-30m/s, the speed of the electric push rod is about 12.5m/s, and the screw pair adopts Tr thread with self-locking performance (trapezoidal thread). There is no need for a separate anti-drop device, which has full anti-dropping performance and high reliability.

2. Through the use of electric push rods for lifting, the environmental pollution problem of hydraulic oil is completely solved.

3. The lifting speed of the electric push rod can be set according to the actual demand, which can replace the throttle valve of the hydraulic oil pump to adjust the speed.

4. Through the pulley mechanism, the screw stroke is only half of the stroke of the slider, which reduces the processing difficulty of the equipment and is beneficial to reducing the structural size of the product.

The series of detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention. Changes are intended to be included within the scope of the invention.

It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims instead All changes in the meaning and scope of equivalent elements are included in the present invention.

Claims

A single column lifting mixer characterized by comprising a lifting mechanism, a slider (13) and a rotating fork (15) for holding the mixing container (16), the lifting mechanism and the slider (13) a connection for driving the slider (13) to slide in a vertical direction, the rotary fork (15) being coupled to the slider (13) for being driven by the slider (13) Move to a preset position;

The lifting mechanism comprises an electric push rod (5), and a screw pair (19) is arranged in the electric push rod (5), the screw pair (19) has a self-locking thread and can be expanded and contracted by a screw drive The free end of the screw pair (19) is connected with a pulley (9), and the pulley (9) is sleeved with a lifting belt, and one end of the lifting belt is fixed, and the other end is connected with the slider (13).
A single column hoist mixer according to claim 1, further comprising a column (2) having a chute formed by parallel rails (18), said slider (13) A roller (20) is provided, and the roller (20) is disposed in the sliding slot and can roll in the sliding slot.
A single column hoist mixer according to claim 2, characterized in that said lifting mechanism further comprises a motor (21) connected to said electric push rod (5), said motor (21) being equipped with a deceleration Device.
A single column hoist mixer according to claim 3, characterized in that the lifting belt is a chain (10).
A single column hoist mixer according to claim 4, characterized in that the stroke range of the slider (13) is provided with a limit switch corresponding to the preset position of the rotary yoke (15) (7).
A single column hoist mixer according to claim 5, characterized in that the slider (13) is connected to the severing fork (15) by a transmission mechanism.
A single column hoist mixer according to claim 6, wherein said transmission mechanism comprises a motor reducer, said motor reducer being coupled to said rotary yoke (15) by a flange.
A single column hoist mixer according to claim 7, characterized in that the column (2) is equipped with a chain connecting plate (8), one end of the chain (10) and the chain connecting plate (8) Fixed connection.
A single column hoist mixer according to claim 8, characterized in that the top of the column (2) is connected with a top fixing means (11) for fixed connection to the top of the space.
A single column hoist mixer according to claim 9, characterized in that the bottom (1) of the column (2) is connected to the base (1).