CN203872438U - Circuit board printing bed die jig - Google Patents

Abstract

A circuit board printing bed die jig comprises a bed die jig body; an upper end of the bed die jig body is fixed with a suction plate used for placing a circuit board; a hollow cavity is arranged in the bed die jig body; the suction plate is detachably fixed on an upper end of the bed die jig body through screws; a bottom end of the bed die jig body is provided with bosses; the suction plate is provided with suction holes used for sucking the circuit board. The advantages are that the detachably and replaceable suction plate is employed to reduce jig production cost and improve practical property, so the jig can be popularized and promoted for usage; the circuit board can bear uniform load on the jig so as to reduce defective rate, printing debug time in usage can be shortened to improve work efficiency, rework rate of the circuit board after printing is reduced, thus improving circuit board quality; a support body or an acceleration piece are arranged in the cavity of the bed die jig body so as to improve suction force of the bed die jig, thereby preventing adverse condition caused by displacement of the circuit board in the printing process.

Description

A kind of wiring board printing bed die tool

Technical field

The utility model belongs to wiring board printing technology, is specifically related to a kind of wiring board printing bed die tool.

Background technology

Along with the continuous discovery of science and technology, to the continuous convergence miniaturization of the pursuit of electronics and intellectuality, the making precision of wiring board is also improved constantly.The important technique that wiring board printing is processed as PCB surface, the quality of PCB surface printing directly has influence on the quality of wiring board, have influence on the crudy to wiring board in next step operation, affect quality and the precision of wiring board, when serious, directly cause wiring board to be scrapped, increase production cost.

At present, in conventional wiring board typography, enterprise is used former printing station to adopt mechanical arrangements thimble conventionally, and as shown in Figure 1, this thimble is single column type bracing frame, and lower end is triangle base.Before printed substrate, first thimble is laid to corresponding bracing frame according to the shape of wiring board with size on printing machine base plate wiring board to be printed is fixed, then wiring board is first debugged, after success to be debugged, just carry out batch printing, cause debug time normal, efficiency is low.Adopt this thimble bracing frame easily to cause in printing process, PCB surface out-of-flatness to be printed is smooth, cause the Disposal quality of tin etc. in PCB surface not high, quality standard is difficult to hold, and many activity durations of access times easily cannot contain machine suction disc vacuum after long, also cannot parallel laminating wiring board, cause the printing quality of wiring board not high, affect the processing to wiring board in operation below, cause the production efficiency of wiring board low, rework rate is high.

While simultaneously the wiring board of larger size being carried out to supporting printing for thimble bracing frame, easily cause wiring board that deformation occurs in printing process, cause wiring board unstable, and easily occur that the defective productss such as off normal produce, and have increased production cost while first brushing.

Summary of the invention

In view of this, the technical problems to be solved in the utility model be a kind of replaceable, air-tightness good, the wiring board factor bed die tool that adsorptivity is strong, easy to use.

In order to solve the problems of the technologies described above, the utility model adopts following scheme to realize: a kind of wiring board printing bed die tool, comprise bed die tool main body, the upper end of bed die tool main body is mounted with for placing the suction disc of wiring board, in described bed die tool main body, be provided with hollow cavity, suction disc is by the dismountable upper end that is fixed on bed die tool main body of screw, and the lower end of bed die tool main body is provided with projection; Described suction disc is provided with for adsorbing the sucker of wiring board.

As improvement of the present utility model, in the hollow cavity of described bed die tool main body, to erect and have 2～8 dividing plates that are parallel to each other, this dividing plate is screwed.

As improvement of the present utility model, in the inside cavity of described bed die tool main body, to erect and have a plurality of supporters, the sucker on supporter and suction disc shifts to install; Described supporter lower end connects and is fixed on the bottom of cavity, and the upper end of described supporter contacts with suction disc bottom.

As further improvement of the utility model, described supporter is circular cylinder or triangle cylinder or rectangular cylinder.

As further improvement of the utility model, also comprise the acceleration piece of a plurality of strips, this acceleration piece is fixed on inside cavity vertically; Described acceleration piece comprises by its back side protuberance and forms low pressure curved surface, with and the high voltage planar of positive formation, the parallel sidewalls of described high voltage planar and described bed die tool main body.

As of the present utility model, further improve, between described bed die tool main body and described suction disc, be provided with rubber blanket, the described bed die tool main body open-topped cuboid that piece acrylic board encloses of serving as reasons, described suction disc top is also provided with smooth smooth plane layer.

Compared with prior art, the utlity model has following beneficial effect:

1. adopt detachable, removable suction disc, changed the pattern that a tool is only applicable to a kind of wiring board, reduced the production cost of tool, increase practicality, be convenient to universal and promote the use of,

2. use tool to substitute original thimble, and upper surface is smooth smooth, and be provided with dividing plate in the cavity of bed die tool main body, make wiring board on tool stressed evenly, surface irregularity while effectively avoiding wiring board printing, PCB surface are rough smooth, reduce defective products rate, during use, shortened printing adjusting machine time, increase work efficiency, reduced the rework rate of printing rear board, improve the quality of wiring board.

3. in the cavity of bed die tool main body, be provided with supporter or accelerate the suction that piece can increase bed die tool, preventing that wiring board from displacement occurring in printing process and cause bad generation, reducing the use power of adsorbent equipment; While using supporter, reduce the area of bed die tool internal cavity, improve suction; Use while accelerating piece, accelerate the air current flow of bed die tool internal cavity, make it produce low-pressure area, increase pressure reduction, increase suction, make the stressed more even of wind action power and wiring board.

Accompanying drawing explanation

Fig. 1 is the thimble structure schematic diagram of prior art.

Fig. 2 is the explosive view of the utility model the first execution mode.

Fig. 3 is the structure chart of the supporter in the utility model.

Fig. 4 is the explosive view of the utility model the second execution mode.

Fig. 5 accelerates the end view of piece in the utility model.

Embodiment

In order to allow those skilled in the art understand better the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is further elaborated.

As shown in Figure 2 and Figure 4, a kind of wiring board printing bed die tool, comprise the bed die tool main body 1 by the open-topped cuboid being enclosed by 5 acrylic boards, in the upper end of bed die tool main body 1, be mounted with for placing the suction disc 2 of wiring board, these suction disc 2 tops are also provided with smooth smooth plane layer.Plane layer is made by synthesis stone matter, and suction disc 2 is provided with for adsorbing the sucker 21 of wiring board, and this sucker 21 is through the plane layer on suction disc top.In order to be applicable to the use of the wiring board of different size, strengthen the practicality of bed die tool, reduce the production cost of bed die tool, described suction disc 2 is by detachable, the removable upper end that is fixed on bed die tool main body 1 of screw.In order to increase the air-tightness of bed die tool, improve the suction of bed die tool, between described bed die tool main body 1 and described suction disc 2, be provided with rubber blanket 4.In described bed die tool main body 1, be provided with hollow cavity 11, in order to increase the support force of bed die tool, prevent stressed excessive, cause suction disc depression or stay, the interior setting of hollow cavity 11 in bed die tool main body has 2～8 dividing plates that are parallel to each other 12, and this dividing plate 12 is screwed in the sidewall of cavity 11.According to the size of hollow cavity 11, select rational dividing plate 12.

In order to increase the fixed effect of bed die tool and vacuum absorption device, the lower end of bed die tool main body 1 is provided with for the fixing projection 3 of bed die tool and adsorbent equipment.Described vacuum absorption device is the normal adsorbent equipment using during wiring board is produced, and makes formation vacuum in wiring board printing machine.

In order to increase the adsorption effect to wiring board of bed die tool, improve suction, prevent that wiring board from displacement occurring in printing process and cause bad generation, in the present embodiment, adopt in the cavity 11 of bed die tool main body, to be provided with supporter or Bernoulli Jacob's fluid accelerates the suction that these two kinds of modes of the wing increase bed die tool.

As shown in Figures 2 and 3, in the present embodiment, the first increases the method for suction, adopts the inner space of the cavity 11 that reduces bed die tool, makes the adsorbent equipment of same power can produce larger suction, in the cavity 11 of bed die tool, is provided with supporter 13.Described supporter 13 adopts acryl plates to make, and its shape can be designed as circular cylinder or triangle cylinder or rectangular cylinder.In the inside cavity of described bed die tool main body, the supporter 13 that the cavity 11 of height and bed die tool body interior matches is installed, the bottom of supporter 13 is concordant with the bottom of bed die tool cavity, and upper end is concordant with the upper end of bed die tool cavity.In order to prevent that supporter from stopping up sucker, described supporter 13 shifts to install with sucker 21 employings on suction disc.Each supporter 13 connects and is screwed in the sidewall of bed die tool main body 1 inside.

In the present embodiment, the second increases the method for suction as shown in Figure 4 and Figure 5, utilizes bernoulli principle in fluid mechanics principle to increase the air stream motion in the cavity of bed die tool main body, produces larger suction.The acceleration piece 14 that also comprises a plurality of strips in the cavity 11 of the bottom of described bed die tool main body, this acceleration piece is fixed on cavity 11 inside vertically.Described acceleration piece 14 comprises by its back side protuberance and forms low pressure curved surface 141, with and the positive high voltage planar 142 forming, the parallel sidewalls of described high voltage planar 142 and described bed die tool main body.Described acceleration piece 14 adopts Bernoulli Jacob's fluid acceleration wing of strip shape body, and the back side protuberance that accelerates the wing at Bernoulli Jacob's fluid forms low pressure curved surface 141, accelerates the high voltage planar 142 of the front formation of the wing at Bernoulli Jacob's fluid.Because Bernoulli Jacob's fluid accelerates low pressure curved surface and the high voltage planar that the wing comprises protuberance, when airflow passes low pressure curved surface, large when flowing through high voltage planar of its mobile distance, according to Bernoulli equation: p1+1/2 ρ v1^2+ ρ gh1=p2+1/2 ρ v2^2+ ρ gh2, the pressure that can learn low pressure curved surface place is lower than high voltage planar, low pressure curved surface top, it is carriage place, can form a low-pressure area with respect to whole inside cavity, air-flow in cavity will flow into low-pressure area from elsewhere under the ordering about in pressure differential, the air-flow of all directions crosses in low-pressure area, turbulization.The suction that the generation of turbulent flow makes the sucker on suction disc more, can firmly suck wiring board, thus the fixation of realization.

Above-described embodiment is only wherein specific implementation of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.

Claims (6)

1. a wiring board prints bed die tool, comprise bed die tool main body (1), the upper end of bed die tool main body is mounted with the suction disc (2) for placing wiring board, it is characterized in that, in described bed die tool main body (1), be provided with hollow cavity (11), suction disc (2) is by the dismountable upper end that is fixed on bed die tool main body (1) of screw, and the lower end of bed die tool main body (1) is provided with projection (3); Described suction disc (2) is provided with the sucker (21) for adsorbing wiring board.

2. wiring board printing bed die tool according to claim 1, is characterized in that, in the hollow cavity (11) of described bed die tool main body, erect and have 2～8 dividing plates that are parallel to each other (12), this dividing plate (12) is screwed.

3. wiring board printing bed die tool according to claim 2, is characterized in that, in cavity (11) inside of described bed die tool main body, erect and have a plurality of supporters (13), supporter (13) shifts to install with the sucker (21) on suction disc; Described supporter (13) lower end connects and is fixed on the bottom of cavity (11), and the upper end of described supporter (13) contacts with suction disc (2) bottom.

4. wiring board printing bed die tool according to claim 3, is characterized in that, described supporter (13) is circular cylinder or triangle cylinder or rectangular cylinder.

5. wiring board printing bed die tool according to claim 2, is characterized in that, also comprise the acceleration piece (14) of a plurality of strips, this acceleration piece (14) is fixed on cavity (11) inside vertically; Described acceleration piece (14) comprises by its back side protuberance and forms low pressure curved surface (141), with and the positive high voltage planar (142) forming, the parallel sidewalls of described high voltage planar (142) and described bed die tool main body.

6. according to the wiring board printing bed die tool described in claim 4 or 5, it is characterized in that, between described bed die tool main body (1) and described suction disc (2), be provided with rubber blanket (4), the open-topped cuboid of described bed die tool main body for being enclosed by 5 acrylic boards, described suction disc (2) top is also provided with smooth smooth plane layer.