CN-121974179-A - Material frame lifting device and working method

CN121974179ACN 121974179 ACN121974179 ACN 121974179ACN-121974179-A

Abstract

The invention provides a material frame lifting device and a working method, relates to the field of wire cleaning equipment, and aims at solving the problems that a traditional lifting device is easy to slide off and needs additional power for discharging after in-place lifting, and the vertical movement of a lifting sliding seat is used as single power input; in the initial and middle stages of the lifting stroke, the material carrying frame presents an elevation angle, the gravity component is utilized to naturally form the anti-slip tail end tilting, so that the safety of the conveying process is effectively improved, the material carrying frame is automatically switched to a depression angle posture at the tail end of the stroke, and the static friction force is overcome by utilizing gravity to assist the material frame to slide outwards for discharging, so that the automatic discharging with low cost is realized on the premise of not increasing additional power sources such as a pushing mechanism and the like, and the control complexity and the failure rate of equipment are reduced.

Inventors

ZHENG GUANGHUI
ZHAO PEIZHEN
ZHENG JINZE

Assignees

聊城市博源节能科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260130

Claims (10)

1. The material frame lifting device is characterized by comprising a frame, a driving mechanism, a lifting sliding seat and a material carrying frame, wherein the lifting sliding seat is connected with the driving mechanism; The material carrying frame is hinged to the lifting sliding seat through a revolute pair, a posture guide mechanism is arranged on the frame, a driven piece matched with the posture guide mechanism is arranged on the material carrying frame, and in the vertical direction moving process of the lifting sliding seat, the posture guide mechanism drives the material carrying frame to rotate around the revolute pair through the driven piece, so that the material carrying frame presents different inclination angles at different positions of the lifting stroke; the track of the gesture guiding mechanism comprises an elevation angle retaining section, a horizontal transition section and a depression angle unloading section which are distributed from bottom to top.
2. The frame lifting device of claim 1, wherein the attitude guide mechanism comprises a guide rail attached to the frame, and the follower comprises a guide wheel abutted from a side of the guide rail, the guide wheel moving along the guide rail to rotate the carriage.
3. The frame lifting device of claim 2, wherein the carriage comprises a side frame and a bottom frame, the side frame is L-shaped, one side of the side frame facing the guide rail is connected with the guide wheel, the other side is vertically connected with the bottom frame, and the center of the carriage is located at one side of the side frame close to the bottom frame, so that the bottom frame can form an elevation angle state, a horizontal state and a depression angle state.
4. The frame lifting device of claim 3, wherein the chassis is provided with a roller set for carrying the frame, and the frame tends to approach the side frame under the action of gravity when the chassis is in an elevation angle state, and tends to be far away from the side frame under the action of gravity when the chassis is in a depression angle state.
5. The frame lifting device of claim 2,3 or 4, wherein the track of the follower moving along the guide rail is a multi-segment continuous curve, and the multi-segment curves correspond to an elevation angle holding segment, a horizontal transition segment and a depression angle unloading segment, respectively.
6. The frame lifting device of claim 1, wherein the frame comprises a vertical support, the posture guiding mechanism is located on one side of the vertical support, the lifting sliding seat is in sliding fit with the other side of the vertical support, and a hinge seat on the same side as the material carrying frame is arranged after the lifting sliding seat extends through the frame, and the hinge seat is matched with the pin shaft to form a revolute pair.
7. The frame lifting device of claim 6, wherein the frame further comprises a base below the carriage, the base having a support bracket for supporting the elevation angle retaining section.
8. The frame lifting device of claim 6 or 7, wherein the driving mechanism comprises a driving cylinder, the driving cylinder is arranged on the frame, the output end of the driving cylinder is connected with the lifting sliding seat, and the cylinder is connected with the air source through the middle seal air exchange valve.
9. A method of operating a frame lifting device, using a frame lifting device according to any one of claims 1-8, comprising: The driving mechanism drives the lifting slide seat to be positioned at a low position in the bottom area of the lifting travel, and a follower on the material carrying frame is matched with an elevation angle retaining section of the attitude guide mechanism at the moment; The guide mechanism drives the material carrying frame to rotate around the rotating pair, and the elevation angle presented before the material carrying frame is gradually adjusted and kept in a horizontal state so as to be kept stable in the vertical transportation process; At the moment, the guide mechanism drives the material carrying frame to rotate around the revolute pair again, so that the material carrying frame is changed into an inclined state presenting a depression angle from a horizontal state, and the tail end of the material carrying frame is declined, thereby realizing a discharging posture.
10. The method of claim 9, wherein after the carriage is in a tilt state at a depression angle, the carriage on the carriage slides downward along the carriage against static friction under its own weight to automatically disengage from the carriage and enter the external receiving end.

Description

Material frame lifting device and working method Technical Field The invention relates to the field of cleaning line equipment, in particular to a material frame lifting device and a working method. Background In the field of cleaning and processing industrial parts, in order to facilitate the operation of operators and to cooperate with subsequent automatic processes, it is generally necessary to lift a material frame containing workpieces from a low loading position to a high cleaning machine feed port. Existing frame conveying systems are usually equipped with vertical lifting devices, the main structure of which comprises a fixed frame, a lifting slide driven by a cylinder or motor, and a horizontally fixed roller carriage. During operation, operating personnel pushes the material frame into the bearing frame at the low position, the driving mechanism drives the bearing frame to vertically rise to the designated height, and then the operating personnel or the auxiliary pushing mechanism pushes the material frame into the conveying line of the cleaning machine. However, the conventional vertical lifting conveying process still has drawbacks in practical application, and cannot meet the comprehensive requirements of high efficiency, safety and low cost. The traditional bearing frame always keeps a horizontal posture in the whole lifting stroke, if equipment vibrates or a material frame is not placed in place in the lifting process, the material frame easily slides outwards due to inertia, potential safety hazards exist, and a complex locking mechanism is usually required to be additionally arranged. When the material frame is lifted to the top butt joint cleaning line, the material frame still keeps horizontal, so that the material frame cannot automatically slide out, an additional push rod mechanism is required to be configured to push out the material frame, the manufacturing cost, the control complexity and the failure rate of equipment are increased, and the requirements of anti-sliding safety in the lifting process and opposite actions of automatic labor-saving unloading in place are difficult to meet. Disclosure of Invention The invention aims at overcoming the defects of the prior art, and provides a material frame lifting device and a working method, which have the advantages of effectively preventing the material frame from sliding off in the lifting process, realizing automatic discharging, needing no additional power source and reducing equipment complexity and failure rate. The first object of the invention is to provide a material frame lifting device, which comprises a frame, a driving mechanism, a lifting sliding seat and a material carrying frame, wherein the lifting sliding seat is connected with the driving mechanism; The material carrying frame is hinged to the lifting sliding seat through a revolute pair, a posture guide mechanism is arranged on the frame, a driven piece matched with the posture guide mechanism is arranged on the material carrying frame, and in the vertical direction moving process of the lifting sliding seat, the posture guide mechanism drives the material carrying frame to rotate around the revolute pair through the driven piece, so that the material carrying frame presents different inclination angles at different positions of the lifting stroke; the track of the gesture guiding mechanism comprises an elevation angle retaining section, a horizontal transition section and a depression angle unloading section which are distributed from bottom to top. Further, the attitude guide mechanism comprises a guide rail attached to the frame, the driven piece comprises a guide wheel abutted against the side face of the guide rail, and the guide wheel moves along the guide rail to drive the material carrying frame to rotate. Further, the material carrying frame comprises a side frame and a bottom frame, the side frame is L-shaped, one side of the side frame, which faces the guide rail, is connected with the guide wheel, the other side of the side frame is vertically connected with the bottom frame, and the center of the material carrying frame is positioned on one side of the side frame, which is close to the bottom frame, so that the bottom frame can form an elevation angle state, a horizontal state and a depression angle state. Further, the roller group for bearing the material frame is arranged on the underframe, when the underframe is in an elevation angle state, the material frame tends to approach to the side frame under the action of gravity, and when the underframe is in a depression angle state, the material frame tends to be far away from the side frame under the action of gravity. Further, the track of the follower moving along the guide rail is a multi-section continuous curve, and the multi-section curve corresponds to the elevation angle maintaining section, the horizontal transition section and the depression angle unloading section respectively. Further, the fra