CN203699829U

CN203699829U - Lifting table suitable for being frequently lifted

Info

Publication number: CN203699829U
Application number: CN201320780978.5U
Authority: CN
Inventors: 常勇
Original assignee: Tongling Haorong Electronic Technology Co Ltd
Current assignee: Tongling Haorong Electronic Technology Co Ltd
Priority date: 2013-12-03
Filing date: 2013-12-03
Publication date: 2014-07-09
Anticipated expiration: 2023-12-03

Abstract

The utility model relates to a lifting table suitable for being frequently lifted. The lifting table comprises a lower workbench, wherein a material is arranged on the lower workbench; a pair of height sensors is arranged on the outer side of a diagonal line of the lower workbench and can mutually sense and monitor a height of the material and limit the material at a working station; a cylinder is arranged below the lower workbench; the height sensors are connected with a three-phase alternating-current solid-state relay in a control box; the three-phase alternating-current solid-state relay controls the cylinder to work. According to the lifting table disclosed by the utility model, the height sensors automatically monitors the height of the material, and the monitoring height precision is high; the three-phase alternating-current solid-state relay replaces the conventional contactor with a mechanical structure, so that frequent switching suction of the contactor is avoided, the service life of the lifting table is prolonged, and an actual use requirement is met.

Description

A kind of bay-lift that is applicable to frequent lifting

Technical field

The utility model relates to a kind of automatic spacing bay-lift, and especially a kind of bay-lift of frequent lifting of being applicable to is used for accurately controlling the working position height of bay-lift, belongs to printed circuit board (PCB) processing technique field.

Background technology

In printed circuit board (PCB) processing technique field, prepreg and the copper-clad plate etc. of oven dry need to be carried out superimposed compressing.In superimposed operation, need the strict height of controlling working position.In existing superimposed operation, due to the frequent lifting of bay-lift, cause controlling often frequent switching of contactless switch of bay-lift, easily produce and lost efficacy, declined to its service life, cannot meet operating needs.

Utility model content

The deficiency that the utility model exists for prior art just, provides a kind of bay-lift that is applicable to frequent lifting.

For addressing the above problem, technical solution adopted in the utility model is as follows:

A kind of bay-lift that is applicable to frequent lifting, described bay-lift comprises lower table, material is placed on lower table, lower table diagonal line arranges a pair of height sensor on outside, height sensor interacts and monitors the height of material, and is limited on working position, and described lower table below arranges cylinder, height sensor connects the 3 phase AC solid relay in control box, 3 phase AC solid Control cylinder operation.

Compared with prior art, implementation result of the present utility model is as follows for the utility model:

Bay-lift described in the utility model, utilize a pair of height sensor automatically to monitor the height of material, its monitoring is highly accurate, utilize 3 phase AC solid relay, replace the contactless switch of existing physical construction, avoid the frequent switching adhesive of contactless switch, in the service life of having improved bay-lift, met actual operation requirements.

Accompanying drawing explanation

Fig. 1 is bay-lift structural representation described in the utility model;

Fig. 2 is A-A view in Fig. 1;

Structural representation when Fig. 3 is bay-lift work described in the utility model;

Fig. 4 is B-B view in Fig. 3;

Fig. 5 is bay-lift electric control theory schematic diagram described in the utility model.

The specific embodiment

Content of the present utility model is described below in conjunction with specific embodiments.

As shown in Figure 1, be bay-lift structural representation described in the utility model, Fig. 2 is A-A view in Fig. 1.Bay-lift described in the utility model, comprises lower table 10, and upper table 20 directly over it.On lower table 10, be provided with multiple transmission shafts 11, be provided with transfer roller 12 on transmission axle 11, transfer roller 12 is staggered to be uniformly distributed.

Near operating surface one side (be in Fig. 2 bottom), be provided with bump rubber 14 at lower table 10, there is certain elastomeric damper 13 near being provided with between the adjacent transmission shaft 11 of bump rubber 14 1 sides.On lower table 10 diagonal line outsides, a pair of height sensor 15 is also set, height sensor 15 interacts and monitors the height of placing material 30 on lower table 10.The plane of Liang Ge lower floor material 31 corresponding formation is the working position (in Fig. 1 shown in dotted line) of bench board 10.When the height of material 30 is during higher than working position, built-in system circuit switches, and drives lower table 10 to move downward, until material 30 upper ends, on working position, like this, are placed on material 30 lower table 10 and are limited on working position.

On upper table 20, be provided with multiple suction bar 21 and stop block 22.Inhale bar 21 and be communicated with outer inside casing (not shown), utilize cylinder to produce negative pressure and can, with inhaling bar 21 absorption materials 30, realize like this object of carrying material 30.Stop block 22 has limited to inhale and has clung to 21 height that can carry material 30, upper table 20 is played to the effect of protection.

As shown in Figure 3, structural representation during for bay-lift work described in the utility model, Fig. 4 is B-B view in Fig. 3.Placement of multiple layers material 30 on the lower table 10 of bay-lift, material 30 comprises lower floor's material 31 and upper materials 32.In order more clearly to describe each details, in Fig. 4, identify the position of material 30 with dotted line.

In the time that lower floor's material 31 is sent to operating surface (be in Fig. 4 bottom) by transmission shaft 11 and transfer roller 12, under the stopping of bump rubber 14, lower floor's material 31 is stopped.But bump rubber 14 is still given the antagonistic force of 31 1 bufferings of lower floor's material, leave bump rubber 14 for fear of lower floor's material 31, have certain elastomeric damper 13 near being provided with between the adjacent transmission shaft 11 of bump rubber 14 1 sides, damper 13 has prevented the counter motion of lower floor's material 31.Now, height sensor 15 monitors lower floor's material 31 height higher than working position, and built-in system circuit switches, drive lower table 10 to move downward, until the top of lower floor's material 31, on working position, like this, is placed on lower floor's material 31 lower table 10 and is limited on working position.

Now, inhale bar 21 and again upper materials 32 is adsorbed to carrying, and be placed on lower floor's material 31, height sensor 15 monitors again upper materials 32 height higher than working position, built-in system circuit switches again, drive lower table 10 to continue to move downward, until the top of upper materials 32 is on working position.

Like this, by the monitoring of height sensor 15, can all the time material 30 be controlled on working position, meet the requirement to height in superimposed operation.

As shown in Figure 5, be bay-lift electric control theory schematic diagram described in the utility model.Described lower table 10 belows arrange cylinder 16, and cylinder 16 drives lower table 10 to move up or down.Height sensor 15 connects control box 17, is provided with 3 phase AC solid relay in control box 17, and 3 phase AC solid Control cylinder 16 is worked.When height sensor 15 monitors after height change, export 24V vdc to 3 phase AC solid relay by its PLC, 3 phase AC solid relay output 380V alternating-current voltage/AC voltage is to the CD-ROM drive motor of lower table 10, drive cylinder 16 to work by motor, cause lower table 10 to drop to working position.

Owing to having adopted 3 phase AC solid relay, replace the contactless switch of existing physical construction, avoid the frequent switching adhesive of contactless switch, in the service life of having improved bay-lift, meet actual operation requirements.

Claims

1. one kind is applicable to the bay-lift of frequent lifting, described bay-lift comprises lower table (10), material (30) is placed on lower table (10), lower table (10) diagonal line arranges a pair of height sensor (15) on outside, height sensor (15) interacts and monitors the height of material (30), and be limited on working position, it is characterized in that, described lower table (10) below arranges cylinder (16), height sensor (15) connects the 3 phase AC solid relay in control box (17), 3 phase AC solid Control cylinder (16) work.