CN210654835U - PCB traction device of self-conveying line loading frame clamp type bracket - Google Patents

Abstract

The utility model provides a from PCB draw gear of transfer chain loading frame clamp formula bracket, including two arm lock symmetry pivots arrange the two sides of a horizontal pole in, the frame encloses between the department of striding in two arm lock and this horizontal pole and forms a PCB storage tank, this PCB storage tank has a PCB and puts into the mouth, this bracket makes PCB storage tank and PCB put into the mouth and locate a reference plane through the drive of a conveyor chain, this reference plane is extended by the one end of this transfer chain and forms, this transfer chain activity disposes a tractor, the clamping jaw of this tractor can be on this transfer chain centre gripping PCB and accept a level to the drive of driver and put into the mouth and then plant this PCB storage tank and place PCB along this reference plane, with improve traditional PCB and be difficult to the accurate alignment horizontal pole and then accept the problem that the horizontal pole held because of rocking at the in-process of removing to the horizontal pole.

Description

PCB traction device of self-conveying line loading frame clamp type bracket

Technical Field

The utility model relates to a PCB's shiies technique, especially relates to a PCB draw gear who loads into frame clamp formula bracket from transfer chain.

Background

In the manufacturing process of a Printed Circuit Board (PCB), the PCB is usually subjected to processes such as ink coating, drying, baking, etc., and the PCB is carried by a conveying apparatus one by one through a work station of the above processes, so as to improve the productivity.

In PCB conveying equipment, it is often seen that a clamp is used to clamp the end edge of a PCB, so that the PCB is clamped by the clamp in a suspended manner, and the clamp is moved by a movable element such as a conveying chain or belt, thereby carrying the suspended PCB to move on a production line through a work station of the above process.

Taking the existing PCB baking equipment as an example, the PCB is continuously and movably carried and enters a tunnel type oven for baking; for this purpose, a conveying chain or belt capable of moving in a loop is commonly used, and clamps (for example, taiwan patent I225029) are disposed at intervals on the conveying chain or belt, and are used to clamp a frame part of the PCB which is not covered with ink, so that one piece of PCB can be clamped by the clamps at intervals, and the piece of PCB enters the oven to be baked while moving in a hanging manner at intervals on the conveying chain or belt.

In addition, the PCB is generally a quadrilateral thin plate, and the area specification (i.e. the length and width) of the thin plate is divided into a large part and a small part, and the thickness of the thin plate is divided into a thick part and a thin part. When the clamp is used for vertically carrying the PCB to pass through the oven in the moving process, the clamped PCB is easy to shake, and the shaking phenomenon of the thinner PCB is more obvious.

Therefore, manufacturers usually increase the distance between the hanging clamps on the conveying chain or belt in the oven to avoid the occurrence of ink sticking and other defects due to shaking of the clamped PCB during the moving baking process. When the distance between the hanging clamps arranged on the conveying chain or the belt in the oven is longer, the number of pieces for hanging the PCB to be baked in the oven in unit time is relatively restricted, and the baking capacity of the PCB is hindered.

In order to solve the above problem, manufacturers developed a PCB frame-clip type bracket and a method for supporting a PCB using the same, as disclosed in taiwan patent No. I660655, which fix a plurality of end edges of a quadrangular PCB by using a bracket, so as to prevent the PCB from shaking during a moving baking process, thereby reducing a distance required to be maintained between the PCB and other PCBs during the moving baking process, and effectively improving the baking capacity of the PCB.

However, in the above-mentioned taiwan patent No. I660655, in order to avoid interference of the carrier elements constituting the conveyor line with the carriage during movement of the carriage, a space is formed between the carrier elements and the carriage, the PCB is carried by the conveyor line and passes through the PCB entry of the carriage to be implanted into the PCB receiving groove, and then the PCB is fixed by clamping two opposite end edges of the PCB and at least one end edge between two opposite end edges of the PCB supported by the cross bar by the two clamping arms of the carriage, that is, the PCB passes through the PCB entry to be implanted into the PCB receiving groove, and before being supported by the cross bar, the end edge of the PCB facing the cross bar is lack of support, which easily causes a shaking phenomenon of the PCB during movement, so that the PCB is difficult to be accurately aligned with the cross bar for being supported, and therefore, how to avoid the shaking phenomenon of the PCB during movement to the cross bar, the PCB can be accurately aligned with the cross bar for being supported, it is a subject to be improved.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention aims to solve the problem that it is difficult to accurately align the cross bar and then receive the cross bar to hold the cross bar during the process of moving the conventional PCB to the cross bar.

In order to solve the above problem, the utility model provides a from transfer chain loading frame presss from both sides PCB draw gear of formula bracket, include: the two clamping arms are symmetrically arranged on two sides of a cross rod used as a fixed end in a relatively rotating and swinging manner, the bracket is formed by the two clamping arms and the cross rod, a span part is respectively and symmetrically formed on the two clamping arms, a PCB accommodating groove is formed between the two span parts and the cross rod in a frame surrounding manner, the PCB accommodating groove is provided with a PCB placing opening relatively far away from the end edge of the cross rod, the cross rod is bridged on a conveying chain capable of rotating in a circling manner, and the bracket is driven by the conveying chain to enable the PCB accommodating groove and the PCB placing opening to be positioned on a reference plane; a plurality of carrier elements respectively located at both sides and configured to form the conveying line in a spaced corresponding arrangement, the reference plane being formed by extending from one end of the conveying line; and the tractor is movably arranged among the plurality of carrying elements on the two sides of the conveying line and comprises at least one clamping jaw and a horizontal driver, wherein the clamping jaw can clamp the PCB on the conveying line and receive the driving of the horizontal driver to pass through the PCB accommodating port along the reference plane so as to implant the PCB into the PCB accommodating groove for accommodating the PCB.

In a further implementation, the reference plane is parallel to the ground.

In a further embodiment, the clamping jaws have a jaw opening which can be opened and closed, the jaw opening lying in the reference plane. The tractor also comprises a vertical driver, and the clamping jaws are driven by the vertical driver to move the clamping mouth to the datum plane.

In further implementation, a picking point is arranged on the conveying line, at least one lifting blocking column is arranged on one side of the picking point, and the PCB is positioned at the picking point through the blocking of the blocking column. Wherein an inductive element electrically connected with the blocking column is arranged below the conveying line, and the picking point is positioned between the blocking column and the inductive element.

In further implementation, two elastic elements are symmetrically arranged on the two clamping arms, two clip opening pushers are symmetrically arranged on the outer sides of the two clamping arms, the two elastic elements respectively drive the two clamping arms to clamp and retract the PCB placing port in a relatively reverse rotary swinging manner, and the two clip opening pushers respectively drive the two clamping arms to elastically open the PCB placing port in a forward rotary swinging manner. Wherein the two clip opening pushers are respectively located on the reference plane.

In a further embodiment, the two clamping arms respectively have a first arm, a second arm and a pivot portion located between the first arm and the second arm, the two clamping arms are respectively symmetrically disposed on both sides of the cross bar through the pivot portion, the span portion is formed on the first arm, and the two opening-clamping pushers respectively press-contact-drive and release the second arms. Wherein the two cross portions are respectively provided with an opening for clamping the PCB. The opening is V-shaped.

In a further implementation, the cross bar is provided with at least one blocking portion protruding near the middle section, and the PCB accommodating groove is enclosed between the two spanning portions and the blocking portion of the cross bar. Wherein the blocking part is provided with a notch for bearing the PCB. The notch is V-shaped.

In a further embodiment, the rotatable conveyor chains are arranged on both sides of an interior of an apparatus. Wherein the bracket is driven by the conveying chain to move to a picking end. The apparatus is an oven.

According to the technical means, the utility model discloses the technological effect that can produce lies in: before the PCB is moved to the PCB accommodating groove by the conveying line and then is supported by the cross rod, the phenomenon that the PCB shakes in the moving process can be avoided by means of traction of the tractor, so that the PCB can be accurately aligned with the cross rod and then is supported by the cross rod, and the accuracy and the smoothness of handing over the PCB in the process of loading the PCB into the bracket from the conveying line are improved.

In addition, the following detailed description and drawings are provided to illustrate the present invention in further detail.

Drawings

Fig. 1 is a top view of the limiting device of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a front view of the fender post of fig. 1.

Fig. 4 is a side view of fig. 2.

Fig. 5 is a perspective view of the bracket of fig. 1.

Fig. 5a is an enlarged schematic view of the stopper in fig. 5.

Fig. 5b is an enlarged schematic view of the midspan portion of fig. 5.

Fig. 6 is a schematic perspective view of the clamping jaw of the present invention when opened.

Fig. 7 is a perspective view of the clamping jaw of the present invention when closed.

Fig. 8a to 8i are schematic diagrams of the operation of the traction device according to the present invention.

Description of reference numerals: 10-a bracket; 101-a PCB receiving slot; 102-PCB entrance; 11-a cross-bar; 111-stop; 112-notch; 113-erecting the rod; 12-a clamp arm; 121-a first arm; 122-a second arm; 123-a pivot joint; 124-span part; 125-opening; 13-a resilient element; 20-unclamping pusher; 30-a conveying line; 301-an access point; 31-a carrier element; 32-a catch; 33-an inductive element; 40-a retractor; 41-a clamping jaw; 411-nip; 42-horizontal driver; 43-a vertical drive; 50-conveying chains; 501-a capturing end; 502-a reference plane; 60-PCB; 70-equipment.

Detailed Description

First, referring to fig. 1 to 5, aspects of a preferred embodiment of the present invention are disclosed, and the PCB towing apparatus for loading frame-clip type carriers from a conveyor line according to the present invention includes a carrier 10, a conveyor line 30, and a tractor 40. Wherein

The main structure of the bracket 10 includes a cross bar 11, two clipping arms 12 and two elastic elements 13, wherein the cross bar 11 is used as a fixed end, and at least one plate-shaped blocking portion 111 for supporting the PCB60 is protruded at the middle section of the cross bar 11. The two clamping arms 12 are symmetrically disposed on both sides of the cross bar 11, so that the blocking portion 111 is located between the two clamping arms 12. The two clamping arms 12 are respectively and symmetrically formed with a span portion 124 for clamping the PCB60, a PCB accommodating groove 101 is formed between the two span portions 124 and the blocking portion 111, and the PCB accommodating groove 101 has a PCB entrance 102 at an end edge relatively far away from the blocking portion 111, so that the PCB60 can enter and exit the PCB accommodating groove 101 through the PCB entrance 102. Further, the blocking portion 111 has a notch 112 (as shown in fig. 5 a), and the blocking portion 111 holds the PCB60 through the notch 112; the two spans 124 each have an opening 125 (as shown in fig. 5 b), and the two spans 124 hold the PCB60 through the openings 125. The notch 112 and the opening 125 may be V-shaped in practice, or may have other geometric shapes.

In one embodiment, the cross bar 11 is bridged over a double-sided rotatable conveying chain 50 inside the apparatus 70, so that the carriage 10 can be driven by the conveying chain 50 to perform a looping movement. The bracket 10 can be moved to a capturing end 501 to capture the PCB60 by the driving of the conveying chain 50. The apparatus 70 may be embodied as an oven, but is not limited thereto. Further, the carriage 10 can be driven by the conveying chain 50 to move to the capturing end 501, so that the blocking portion 111 and the spanning portion 124 of the carriage 10 are respectively positioned on a reference plane 502, and the reference plane 502 is parallel to the ground in practice. More specifically, the bracket 10 is driven by the conveying chain 50 to position the notch 112 of the stopper portion 111 and the opening 125 of the span portion 124 on the reference plane 502.

Two sides of the cross bar 11 are respectively protruded with a vertical rod 113, two clamping arms 12 are respectively symmetrically formed with a pivoting portion 123, and the two clamping arms 12 are respectively pivoted to the vertical rod 113 through the pivoting portions 123, and further pivoted to two sides of the cross bar 11 in a relatively rotatable and swingable manner. Further, the two clamping arms 12 respectively have a first arm 121 and a second arm 122, the span portion 124 is formed on the first arm 121, and the pivot portion 123 is located between the first arm 121 and the second arm 122. The first arm 121 is longer than the second arm 122, so that the second clamping arm 12 can clamp PCBs 60 with different sizes.

Two elastic elements 13 are symmetrically disposed on the two clipping arms 12, and the two elastic elements 13 are used for driving the two clipping arms 12 to clip the PCB placement port 102 in a relatively reverse rotation and swing manner. Further, the two elastic elements 13 are torsion springs, which are respectively disposed on the two pivoting portions 123, and both ends of the two torsion springs respectively press the second arms 122 of the clipping arms 12 and the vertical rods 113 on the crossbar 11, so that the first arms 121 of the clipping arms 12 are driven by the two elastic elements 13 to swing in a relatively approaching direction, thereby clipping the PCB insertion opening 102.

Two clip opening pushers 20 are symmetrically arranged on the outer sides of the two clip arms 12, and the two clip opening pushers 20 can respectively drive the two clip arms 12 to elastically open the PCB placing port 102 in a positive swinging manner. The clip opening pusher 20 may be implemented as a pneumatic cylinder. Further, the two clip opening pushers 20 can respectively press against the second arm portions 122 of the two clip arms 12, and when the pushing force applied to the second arm portions 122 by the two clip opening pushers 20 is greater than the elastic force applied to the second arm portions 122 by the two elastic elements 13, the first arm portions 121 of the two clip arms 12 swing in the direction away from each other, so as to open the PCB entry opening 102. On the contrary, when the second arm 122 is released by the two clip opening pushers 20, the first arm 121 of the two clip arms 12 swings in a relatively approaching direction by the driving of the two elastic elements 13, thereby clipping the PCB entry 102.

The conveyor line 30 is constructed by a plurality of carrier elements 31 respectively located at both sides and arranged in a spaced-apart corresponding manner, the reference plane 502 is formed by extending from one end of the conveyor line 30, and the carrier elements 31 may be rolling wheels or a conveyor belt.

The tractor 40 is movably disposed between the plurality of carrier elements 31 on both sides of the transport line 30, and the tractor 40 includes at least one jaw 41 and a horizontal driver 42, and the jaw 41 can be driven by the horizontal driver 42 to pass through the PCB insertion opening 102 along the reference plane 502 to insert the PCB60 into the PCB receiving groove 101. The clamping jaw 41 has an opening 411 (as shown in fig. 6 and 7), the clamping jaw 41 clamps the PCB60 through the opening 411, the opening 411 is located on the reference plane 502, and after the PCB60 is clamped by the clamping jaw 41, the PCB60 can be inserted into the PCB receiving cavity 101 through the PCB insertion opening 102 along the reference plane 502 by driving the horizontal driver 42. Further, a vertical driver 43 is disposed between the clamping jaw 41 and the horizontal driver 42, and the clamping jaw 41 can move the clamping opening 411 to the reference plane 502 through the driving of the vertical driver 43.

The conveyor line 30 has a pick-up point 301, the pick-up point 301 is adjacent to the reference plane 502, the clamping jaw 41 can move to the pick-up point 301 by driving the horizontal driver 42, and the clamping jaw 41 clamps the PCB60 at the pick-up point 301. Further, at least one liftable blocking pillar 32 is disposed on one side of the capturing point 301, the PCB60 is retained by the blocking pillar 32 and positioned at the capturing point 301, an inductive element 33 electrically connected to the blocking pillar 32 is disposed below the conveying line 30, the capturing point 301 is located between the blocking pillar 32 and the inductive element 33, and when the inductive element 33 senses that the PCB60 passes through the upper portion, the inductive element 33 controls the blocking pillar 32 to ascend, so that the PCB60 is retained by the blocking pillar 32 and positioned at the capturing point 301.

Referring to fig. 8a to 8i, the operation of the present invention is illustrated in order to show that when the sensing element 33 senses that the PCB60 passes through the upper portion (as shown in fig. 8 a) before the PCB60 moves along the conveying line 30 to the pick-up point 301, the sensing element 33 controls the lifting of the pin 32, so that the PCB60 is held by the pin 32 and positioned at the pick-up point 301 (as shown in fig. 8 b). The jaws 41 can then be driven by the vertical drive 43 to move the jaws 411 to the datum plane 502 (as shown in figure 8 c). The clamping jaw 41 closes the clamping opening 411 to clamp the PCB60 (as shown in fig. 8 d), and after the clamping jaw 41 closes the clamping opening 411 to clamp the PCB60, the stop pillar 32 descends to facilitate the subsequent action of the clamping jaw 41 clamping the PCB 60. Then, when the carriage 10 is moved to the picking end 501 by the conveying chain 50, the carriage 10 is driven by the clip opening pusher 20 to open the PCB entry port 102 (as shown in fig. 8 e). The jaws 41 holding the PCB60 are inserted into the PCB receiving groove 101 through the PCB insertion opening 102 along the reference plane 502 by being horizontally driven toward the driver 42 (as shown in fig. 8 f). When the end edge of the PCB60 contacts the stopper 111, the clip opening pusher 20 releases the two clip arms 12, so that the two clip arms 12 can swing along the reference plane 502 in a relatively approaching direction to clip the PCB insertion opening 102 by the driving of the elastic element 13, and the two clip arms 12 clip the PCB60 (as shown in fig. 8 g). Finally, the jaws 41 open the jaws 411 to release the PCB60 (as shown in fig. 8 h), and the jaws 41 are driven by the vertical driver 43 to move the jaws 411 away from the reference plane 502 (as shown in fig. 8 i), so that the carriage 10 holding the PCB60 is moved away from the capturing end 501 by the conveying chain 50.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (17)

1. A PCB draw gear that loads into framed bracket from transfer line, characterized by, includes:

the two clamping arms are symmetrically arranged on two sides of a cross rod used as a fixed end in a relatively rotating and swinging manner, the bracket is formed by the two clamping arms and the cross rod, two span parts are symmetrically formed on the two clamping arms, a PCB accommodating groove is formed between the two span parts and the cross rod in a surrounding manner, the PCB accommodating groove is provided with a PCB placing inlet relative to the end edge far away from the cross rod, the cross rod is bridged on a conveying chain capable of rotating in a circling manner, and the bracket is driven by the conveying chain to enable the PCB accommodating groove and the PCB placing inlet to be positioned on a reference plane;

a plurality of carrier elements respectively located on both sides and configured to form the conveyor line in a spaced corresponding arrangement, the reference plane being formed by extending from one end of the conveyor line; and

and the tractor is movably arranged among the plurality of carrying elements on the two sides of the conveying line and comprises at least one clamping jaw and a horizontal driver, wherein the clamping jaw can clamp the PCB on the conveying line and receive the driving of the horizontal driver to pass through the PCB accommodating port along the reference plane so as to implant the PCB into the PCB accommodating groove for accommodating the PCB.

2. The PCB traction apparatus for a self-conveyor line loading clip-on carriage as recited in claim 1, wherein: the reference plane is parallel to the ground.

3. The PCB tractor for loading a framed bracket from a conveyor line as recited in claim 2, further comprising: the clamping jaw is provided with a clamping opening capable of being opened and closed, and the clamping opening is located on the reference plane.

4. A PCB traction apparatus for a self-conveying line loading clip-on carriage as recited in claim 3, wherein: the tractor further comprises a vertical driver, and the clamping jaws move to the reference plane through the driving of the vertical driver.

5. The PCB tractor for loading a framed bracket from a conveyor line as recited in claim 2, further comprising: the conveying line is provided with a picking point, one side of the picking point is provided with at least one liftable retaining column, and the PCB is positioned at the picking point through the retaining of the retaining column.

6. The PCB traction apparatus for loading a clip-on carrier from a conveyor line as recited in claim 5, wherein: an induction element electrically connected with the blocking column is arranged below the conveying line, and the picking point is located between the blocking column and the induction element.

7. The PCB tractor for loading a framed bracket from a conveyor line as recited in claim 2, further comprising: two elastic elements are symmetrically arranged on the two clamping arms, two opening and clamping pushers are symmetrically arranged on the outer sides of the two clamping arms, the two elastic elements respectively drive the two clamping arms to clamp and contract the PCB placing port in a relatively reverse rotary swing mode, and the two opening and clamping pushers respectively drive the two clamping arms to elastically open the PCB placing port in a forward rotary swing mode.

8. The PCB tractor for loading a framed bracket from a conveyor line as recited in claim 7, further comprising: the two clip opening pushers are respectively located on the reference plane.

9. The PCB tractor for loading a framed bracket from a conveyor line as recited in claim 7, further comprising: the two clamping arms are respectively provided with a first arm part, a second arm part and a pivoting part located between the first arm part and the second arm part, the two clamping arms are respectively symmetrically arranged on two sides of the cross rod through the pivoting part, the span part is formed on the first arm part, and the two clamping opening pushers respectively drive and release the second arm parts in a press-contact mode.

10. The PCB traction apparatus for loading a clip-on carrier from a conveyor line as recited in claim 9, wherein: the two cross parts are respectively provided with an opening for clamping the PCB.

11. The PCB traction apparatus for a self-conveyor line loading clip-on carriage of claim 10, wherein: the opening is V-shaped.

12. The PCB traction apparatus for loading a clip-on carrier from a conveyor line as recited in claim 9, wherein: at least one blocking part is convexly arranged at the section of the cross bar close to the middle section, and the PCB containing groove is enclosed and formed between the two span parts and the blocking part of the cross bar.

13. The PCB traction apparatus for a self-conveyor line loading clip-on carriage of claim 12, wherein: the blocking part is provided with a notch for bearing the PCB.

14. The PCB tractor for loading a framed bracket from a conveyor line as recited in claim 13, further comprising: the notch is V-shaped.

15. The PCB traction apparatus for a self-conveyor line loading clip-on carriage as recited in claim 1, wherein: the conveying chains capable of rotating circularly are arranged on two sides in the equipment.

16. The PCB traction apparatus for loading a clip-on carrier from a conveyor line as recited in claim 15, wherein: the bracket is driven by the conveying chain to move to a picking end.

17. A PCB hauling apparatus for loading a clip-on carrier from a conveyor line as claimed in claim 15 or 16, wherein: the apparatus is an oven.

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