CN105817364B - Object conveyor for protection against ink splashes in spray booths - Google Patents

Abstract

The present invention provides an object conveying device for preventing ink splashing in a spray booth, comprising a double-row rail seat and a spray gun, wherein a conveying surface for conveying objects is constructed between the double-row rail seats, and the spray gun is movably arranged in the spray booth and is located above the conveying surface and reciprocates along a trajectory line. More specifically, the top of the rail seat has an end surface, and the height between the end surface and the trajectory line of the spray gun is greater than the height between the conveying surface and the trajectory line of the spray gun. In this way, the problem that the conventional ink splashes onto the surface of the substrate when sprayed onto the rail seat, forcing the substrate to reduce the qualified rate of ink coverage is improved.

Description

Object conveyor for protection against ink splashes in spray booths

technical field

The invention relates to the technology of preventing ink splashing in the range of ink spraying in a spray booth, in particular to an object conveying device for preventing ink splashing in a spray booth.

Background technique

It is well known that a layer of solder resist ink must be coated on the surface of a printed circuit board (PCB), and the layer of solder resist ink can usually be coated by spraying wet ink by using an ink sprayer.

Generally, during the process of substrates being sprayed with solder resist ink, transmission parts (such as chains or belts) are used to carry multiple substrates one by one into the spray booth, and the solder resist ink is sprayed on the surface of the substrates by means of spray guns installed in the spray booth. The above-mentioned transmission parts are movably arranged in the double-row rail seats parallel to each other, so that the transmission parts can carry the substrate into the spray booth by virtue of the guidance of the rail seats.

However, in the process of spraying solder resist ink on the substrate, in order to uniformly cover the surface of the substrate with solder resist ink, usually the moving range of the spray gun must be larger than the area of the sprayed surface of the substrate when spraying solder resist ink, causing the solder resist ink It is easy to be sprayed on other objects adjacent to both sides of the substrate, such as the rail seat 10a for guiding the movement of the substrate. There is a certain height between 10a, so the solder resist ink sprayed on the rail seat 10a by the spray gun 20a will splash around, and the height of the end surface 13a of the top of the traditional rail seat 10a from the spray gun 20a is usually higher than (or equal to) the substrate 30a The height of the distance from the spray gun 20a causes the solder resist ink sprayed on the top end surface 13a of the rail seat 10a to easily splash onto the sprayed surface of the substrate 30a on the adjacent side, causing the thickness of the solder resist ink on the sprayed surface of the substrate 30a to be inconsistent. The pass rate of forcing the substrate 30a to be flooded with ink is greatly reduced.

Contents of the invention

In view of this, the purpose of the present invention is to solve the problem that traditional ink splashes onto the surface of the substrate when it is sprayed onto the rail seat, which forces the substrate to be covered with ink and the qualified rate is reduced.

In order to achieve the above object, the present invention provides an object conveying device for preventing ink splashing in a spray booth, the technical means of which include: a double-row rail seat, which is fixedly placed in the spray booth and respectively guides a transmission member movablely. A plurality of supporting parts for carrying objects are suspended at intervals between the parts, and the supporting parts are constructed between double-row rail seats to form a conveying surface for transferring objects; a spray gun is movable in the spray booth and is located Move back and forth along a trajectory line above the conveying surface; wherein, the top of the rail seat has an end surface, and there is a first height H1 between the end surface and the trajectory line of the spray gun, and the distance between the conveying surface and the trajectory line of the spray gun It has a second height H2, wherein the first height H1 is greater than the second height H2.

More specifically, the above-mentioned technical features can also be further implemented into:

The supporting part is configured on the transmission part via a connecting part.

The section of the connecting piece is L-shaped.

It also includes an upper baffle, the upper baffle is arranged above the end surface of the rail seat, the upper baffle is oblique, and extends downward from the end side adjacent to the conveying surface to the outside of the rail seat .

An ink collecting tank is additionally provided on the outer side of the rail seat, so that the collecting tank is located on the bottom side of the downwardly inclined end of the upper baffle.

An upper guide groove and a lower guide groove are formed in the rail base, the upper guide groove is located above the lower guide groove, and the transmission part is wound around the upper guide groove and the lower guide groove to receive guidance. .

The conveying surface is adjacent to the upper guide groove, and the supporting member constructed to form the conveying surface is seated on the transmission member in the upper guide groove.

It also includes a lower baffle plate fixed on a wall surface of the rail base, so that the lower baffle plate is located between the upper guide groove and the lower guide groove, covering the transmission parts and connecting parts guided by the lower guide groove. parts and supports.

The lower baffle is oblique, and extends downward from the wall surface of the rail base to the top of the transmission element and the support element guided by the lower guide groove.

The transmission member is a chain or a belt.

According to the above-mentioned technical means, the advantage of the present invention is that by virtue of the height difference formed between the spray gun, the conveying surface and the end surface, when the solder resist ink of the spray gun is sprayed to the end surface, it can effectively prevent the solder resist ink from splashing to the surface located on the conveying surface. On the substrate, and the support on the rail seat is covered by the upper baffle and the lower baffle to prevent the support from being contaminated by the solder resist ink, so as to improve the pass rate of the substrate when the ink is covered.

The technical means of the above-mentioned method and device and the specific implementation details of generating performance, please refer to the following examples and drawings for illustration.

Description of drawings

Figure 1 is a schematic illustration of a traditional spray gun spraying solder resist ink to a rail seat;

Fig. 2 is a configuration diagram of a preferred embodiment of the present invention;

Fig. 3 is a partially enlarged schematic diagram of Fig. 2;

Fig. 4 is a schematic diagram of the action of Fig. 3;

Fig. 5 is a partially enlarged schematic view of another embodiment of the present invention;

FIG. 6 is a schematic diagram of the operation of FIG. 5 .

Explanation of reference signs: 10a, 10b rail seat; 11b first row of rail seat; 12b second row of rail seat; 13a, 13b end face; 14b upper guide groove; 15b lower guide groove; 16b wall surface; 21b track line; 30a, 30b base plate; 40b transmission part; 41b support part; 42b conveying surface; 43a, 43b connecting piece; 50b upper baffle; 60b collection tank; 70b lower baffle; H1 first height; H2 second height .

Detailed ways

First of all, please refer to Fig. 2 and Fig. 3 together, disclose the aspect of a preferred embodiment of the present invention, illustrate the object conveying device that prevents ink splashing in the spray room that the present invention provides, comprise a double-row rail seat 10b and a spray gun 20b. in:

The double-row rail seat 10b is fixedly placed in a spray booth (not shown) in practice, and the double-row rail seat 10b includes a first row of rail seats 11b and a second row of rails parallel to each other. Seat 12b, the first row of rail seats 11b and the second row of rail seats 12b are respectively an extruded groove frame in implementation, and the first row of rail seats 11b and the second row of rail seats 12b can respectively move and guide a transmission The moving path of the part 40b, the transmission part 40b may refer to a chain or a belt in practice, and a plurality of supporting parts 41b for carrying objects are hung on the transmission part 40b at intervals, and the objects may refer to the base plate 30b in practice , and the support 41b can be cylindrical, conical or spherical in implementation, and the support 41b on the first row of rail seats 11b and the second row of rail seats 12b is constructed to form a conveying surface for transferring objects 42b, so that the above-mentioned substrates 30b can be moved one by one along the conveying surface 42b into the spray booth through the guidance of the supporting member 41b. In addition, in the following description, the first row of rail seats 11b and the second row of rail seats 12b are collectively referred to as the rail seats 10b.

The spray gun 20b is movable and disposed in the above-mentioned spray booth. The spray gun 20b is located above the conveying surface 42b and moves back and forth along a trajectory line 21b. The trajectory line 21b moves with the substrate 30b on the conveying surface 42b. The directions are perpendicular to each other, and in practice, the distance between the trajectory line 21b of the spray gun 20b and the conveying surface 42b is defined as the second height H2.

Please refer to FIG. 3 , which illustrates that the top of the rail seat 10b has an end surface 13b , and the end surface 13b may be a plane or a surface area formed by any geometric contour in implementation. More specifically, since the rail seat 10b is used to guide the movement of the transmission member 40b, the rail seat 10b must have a width capable of accommodating and guiding the transmission member 40b, and the surface of the end surface 13b The domain is formed by the width of the rail seat 10b. In practice, the distance between the trajectory line 21b of the spray gun 20b and the end surface 13b is defined as the first height H1.

Please refer to Fig. 2 to Fig. 4 together, illustrate that the first height H1 between the above-mentioned end surface 13b and the trajectory line 21b of the spray gun 20b is relatively greater than the second height H2 between the conveying surface 42b and the trajectory line 21b of the spray gun 20b, and then make the end surface 13b is relatively lower than the conveyance surface 42b. More specifically, the supporting member 41b forming the conveying surface 42b is hung on the transmission member 40b via a connecting member 43b. For the in-line connector 43a (as Fig. 1), the height of the support member 41b can be raised, so that the height of the conveying surface 42b can be relatively higher than the height of the end face 13b. For this purpose, the connector 43b The cross-section is not limited to the L-shape, that is to say, the cross-section of the connecting member 43b can also be any other geometric shape other than straight. As shown in Figure 4, when the solder resist ink of the spray gun 20b is sprayed onto the end face 13b, since the end face 13b is relatively lower than the conveying surface 42b, the splashing of the solder resist ink on the substrate 30b positioned at the conveying surface 42b can be avoided, and then Improve the pass rate of the substrate 30b when the ink is flooded.

Please refer to Fig. 5 and Fig. 6 together, which illustrate that an upper baffle 50b can be assembled on the top of the end surface 13b of the rail seat 10b in the form of screw group or magnetic attraction, and the upper baffle 50b is inclined in implementation. shape, and extends downwards from the end side adjacent to the conveying surface 42b to the outside of the rail seat 10b. When the solder resist ink is sprayed onto the upper baffle 50b, the shielding of the upper baffle 50b can avoid the underside of the upper baffle 50b The support member 41b is contaminated with solder resist ink, and the solder resist ink sprayed on the upper baffle 50b can be concentrated and diverted to the outside of the rail seat 10b, which can prevent the solder resist ink from contaminating other objects. Furthermore, an ink collection tank 60b is attached to the outside of the rail seat 10b, and the collection tank 60b is located on the bottom side of the downwardly inclined end of the upper baffle 50b, so that the solder resist sprayed on the upper baffle 50b The ink can be concentrated and diverted into the collecting tank 60b, so as to recycle the solder resist ink.

Please refer to FIG. 3 , which illustrates that an upper guide groove 14b and a lower guide groove 15b are formed in the rail base 10b. The upper guide groove 14b is located above the lower guide groove 15b. Guided in the upper guide groove 14b and the lower guide groove 15b, the transmission member 40b is driven by a transmission wheel (not shown) to return between the upper guide groove 14b and the lower guide groove 15b. Circle movement, in practice, when the transmission member 40b is a chain, the transmission wheel is a sprocket, and when the transmission member 40b is a belt, the transmission wheel is a pulley. More specifically, the conveying surface 42b is formed by the support member 41b seated on the transmission member 40b in the upper guide groove 14b.

Referring to Fig. 5, it is illustrated that the wall surface 16b between the upper guide groove 14b and the lower guide groove 15b of the rail seat 10b can be assembled with a lower baffle plate 70b in a screwed or welded manner. In practice, it is inclined, and extends downward from the wall surface 16b of the rail seat 10b to the top of the transmission member 40b, the connecting member 43b and the support member 41b guided by the lower guide groove 15b, which can effectively Avoid the solder resist ink sprayed by the spray gun 20b from adhering to the transmission member 40b, the connecting member 43b and the support member 41b through the gap formed between the multiple substrates 30b moving along the conveying surface, and then lift the substrate 20b when the ink is covered pass rate.

The above description is only illustrative of the present invention, rather than restrictive. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims, but All will fall within the protection scope of the present invention.

Claims (9)

1. prevent from splashing the object conveying device of ink in a kind of spray room, which is characterized in that including：

One double-row type rail chair, fixed placement in spray room and respectively activity guiding one driving member, the driving member be chain or skin Band, and the driving member interval is linked with the support element of multiple loaded objects, support element construction between double-row type rail chair Form a conveyor surface for transmitting object；

One spray gun, mobile is configured in spray room, and the top for being seated conveyor surface is moved back and forth along a path line；

Wherein, the top of the rail chair has end face, has one first height, the conveying between the end face and the path line of spray gun One second height of tool between face and the path line of spray gun, wherein the first height is more than the second height, makes the end face be relatively lower than this Conveyor surface.

2. prevent from splashing the object conveying device of ink in spray room according to claim 1, it is characterised in that：The support element via A connection piece and hang on driving member.

3. prevent from splashing the object conveying device of ink in spray room according to claim 2, it is characterised in that：The connector breaks Face is L-shaped.

4. prevent from splashing the object conveying device of ink in spray room according to claim 1, it is characterised in that：It also includes and is kept off on one Plate, the overhead gage are mounted on the top of the end face of the rail chair, which is in squint shape, and by the end side of neighbouring conveyor surface Downward squint is extended on the outside of rail chair.

5. prevent from splashing the object conveying device of ink in spray room according to claim 4, it is characterised in that：It is attached on the outside of the rail chair The collecting tank of an ink is equipped with, the collecting tank is made to be seated the bottom side of the end of the downward squint of overhead gage.

6. prevent from splashing the object conveying device of ink in spray room according to claim 1, it is characterised in that：Shape in the rail chair Cheng Youyi upper stratas guide channel and lower floor's guide channel, the upper strata guide channel are located at the top of lower floor's guide channel, the driving member circle around In receiving guiding in upper strata guide channel and lower floor's guide channel.

7. prevent from splashing the object conveying device of ink in spray room according to claim 6, it is characterised in that：The conveyor surface is neighbouring Upper strata guide channel, and construction forms the support element of the conveyor surface and is seated on the driving member in the guide channel of upper strata.

8. prevent from splashing the object conveying device of ink in spray room according to claim 6, it is characterised in that：It is also fixed comprising one In the lower baffle plate of a wall surface of rail chair, the lower baffle plate is made to be seated between the upper strata guide channel and lower floor's guide channel, cover via Driving member, connecting piece and the support element that lower floor's guide channel is guided.

9. prevent from splashing the object conveying device of ink in spray room according to claim 8, it is characterised in that：The lower baffle plate is in oblique Incline shape, and extends to the upper of the driving member guided positioned at lower floor's guide channel and support element by the downward squint of wall surface of the rail chair Side.