The circuit board printing apparatus
Technical field
The present invention relates to a kind of circuit board printing apparatus.
Background technology
Surface installation technique (SMT) is the printing technology that a kind of printing precision is had relatively high expectations, and along with the develop rapidly of modern science and technology, the printing machine of various models produces in succession, CM402, DED, MPM Vacuum printing machine etc.But existing printing apparatus is single printing one by one, and efficient is lower, and a kind of printing apparatus can not be applicable to the use of multiple different size circuit board, and the scope of application is less.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome the circuit board that printing apparatus in the prior art can not be applicable to multiple different size, and the lower defective of printing efficiency, and a kind of circuit board printing apparatus applicable to the different size circuit board is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of circuit board printing apparatus, comprise a pallet, its characteristics are, this pallet is provided with at least two circuit board storage tanks, also comprise some elastic positioning devices that are used for fixing circuit board to be processed on this pallet, this elastic positioning device is located at the side of this printed circuit board (PCB) storage tank, and the upper surface of this elastic positioning device is not higher than the work surface of this circuit board to be processed.
Wherein, this elastic positioning device comprises a pressure section, the elastic portion that an end is connected with this pressure section, and the other end of this elastic portion is connected with this pallet.This elastic portion can be regulated the position of pressure section automatically according to the size of circuit board to be processed, treats processing circuit board better and fixes.
Wherein,, the length of this circuit board storage tank and wide respectively greater than the length of this circuit board to be processed and wide.Guarantee that circuit board to be processed can can't not place or be damaged because of the circuit board storage tank is too small in put procedure.
Preferable, the length of this circuit board storage tank and wide respectively than the length and the roomy 0.05mm of this circuit board to be processed.
Wherein, the degree of depth of this circuit board storage tank is less than the thickness of circuit board to be processed.Guarantee that Printing screen can contact with the upper surface of circuit board to be processed fully, can avoid empty brush, improve print quality.
Preferable, the little 0.1mm-0.15mm of thickness of this circuit board to be processed of depth ratio of this circuit board storage tank.
Wherein, the lower surface of this circuit board storage tank is provided with some member slot that allow.When circuit board was printed on both sides, this allowed member slot be used to the components and parts of circuit board to be processed bottom to step down, and this allows member slot rationally be provided with according to the components and parts position of circuit board to be processed bottom and to change.
Wherein, the side of this circuit board storage tank is provided with some attacker's grooves.
Wherein, this pallet is provided with at least two circuit board storage tanks, and the lower surface of this circuit board storage tank is equipped with the adaptive alignment pin in hole on some and this circuit board to be processed.
Wherein, this circuit board printing apparatus adopts flame resistant material to make.
Wherein, this circuit board printing apparatus adopts the 6mm-8mm epoxy resin board to make.
Positive progressive effect of the present invention is: the circuit board printing apparatus among the present invention is by being positioned at the elastic positioning device of circuit board storage tank side, and the actual size of movable regulating circuit plate storage tank makes it the circuit board applicable to multiple different size.Further, treat processing circuit board by the alignment pin of circuit board storage tank bottom and further locate, improved printing quality.Further, this circuit board printing apparatus is provided with a plurality of circuit board storage tanks, can the same time carry out presswork to the polylith circuit board, has improved operating efficiency.
Description of drawings
Fig. 1 is the stereogram of the circuit board printing apparatus among the present invention.
Fig. 2 is the front view of the circuit board printing apparatus among Fig. 1.
Fig. 3 is the rearview of the circuit board printing apparatus among Fig. 1.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As Figure 1-3, circuit board printing apparatus of the present invention comprises a pallet 1, and this pallet 1 adopts 6mm-8mm epoxy resin board or refractory material to make.On pallet 1, be provided with two circuit board storage tanks 2 side by side, the length of this circuit board storage tank 2 and the wide length that is slightly larger than circuit board to be processed respectively and wide, reserve and to adjust the space down, avoid circuit board in process of production scale error and cause putting into circuit board storage tank 2.Preferable, the length of circuit board storage tank 2 and wide respectively than the length and the roomy 0.05mm of circuit board to be processed.In addition, the degree of depth of circuit board storage tank 2 is less than the thickness of circuit board to be processed, guarantees that the face to be processed of circuit board to be processed is higher than the upper surface of pallet 1, guarantees that Printing screen can contact with the work surface of circuit board better in printing process, improve printing effect, avoid empty brush.Preferable, the little 0.1mm-0.15mm of the depth ratio of circuit board storage tank 2 circuit board to be processed.
Side at each circuit board storage tank 2 is provided with two elastic positioning devices 3, this elastic positioning device 3 comprises that one is used to compress the pressure section 31 of board edge, one elastic portion 32 that this pressure section is connected with this pallet 1, this pressure section 31 extends in this circuit board storage tank 2.And the upper surface of this elastic positioning device 3 is lower than the work surface of circuit board.Elastic positioning device 3 in the present embodiment is an one with this pallet 1.Shown in Fig. 2 and 3, by engraving the outline that sets out location division 31 and elastic portion 32 at circuit board storage tank 2 sides, wherein, elastic portion 32 is connected with pallet 1, and elastic portion 32 is connected with location division 31.The elastic positioning device of this structure is simple in structure, and is easy to process, reduces cost, and guarantees that its upper surface is lower than the upper surface of to be processed of circuit board.Also can adopt such as other elastomeric elements such as spring or leaf spring and replace.
Preferable, presswork for the ease of double-sided PCB, guarantee that the element on the machined surface can not be damaged, be provided with some member slot 4 that allow in the bottom surface of each circuit board storage tank 2, this allows the quantity of member slot 4 and the position can be according to the quantity and the position relative set of elements on circuit board to be processed.
Preferable, be provided with four alignment pins 5 in the bottom surface of circuit board storage tank 2, the hole on the position of this alignment pin 5 and the circuit board to be processed is further treated processing circuit board and is positioned to corresponding.
Preferable, also be provided with two attacker's grooves 6 in the side of circuit board storage tank 2, with the circuit board after the processing of conveniently taking.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these execution modes.Therefore, protection scope of the present invention is limited by appended claims.