CN114890187A

CN114890187A - Upper and lower copper foil conveyor based on PCB (printed circuit board) press-fit return line

Info

Publication number: CN114890187A
Application number: CN202210652482.3A
Authority: CN
Inventors: 刘文平; 冯进钰; 易淑平; 周招娣; 简历; 彭英明
Original assignee: Jiangxi Wenbin Technology Co ltd
Current assignee: Jiangxi Wenbin Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-08-12
Anticipated expiration: 2042-06-10
Also published as: CN114890187B

Abstract

The invention relates to the technical field of electronic product production, and discloses an upper and lower copper foil conveyor based on a PCB (printed circuit board) press-fit backflow line, which comprises a fixed shaft, wherein a transition table is arranged on the outer side of the fixed shaft, a transmission roller is arranged on one side of the fixed shaft, a conveying belt is arranged on the outer side of the transmission roller, gears I are fixedly connected to the outer sides of two ends of the transmission roller respectively, a gear rod positioned between the fixed shaft and the transmission roller is meshed to the outer side of each gear I, and a gear II is meshed to the outer side of each gear rod. Through being provided with the conveyer belt between transition platform and conveyer belt, make the copper foil leave the top of conveyer belt after, between the top that contacts the transition platform, can carry out the transmission at the top terminal surface of conveyer belt, reduce the vacation length of copper foil at the data send process, reduced the crooked volume of copper foil because of the self gravity of vacation part promptly, reduced the wearing and tearing of copper foil data send process, and the setting of conveyer belt can increase total data send process's effective transfer area.

Description

Upper and lower copper foil conveyor based on PCB (printed circuit board) press-fit return line

Technical Field

The invention relates to the technical field of electronic product production, in particular to an upper copper foil conveyor and a lower copper foil conveyor based on a PCB (printed circuit board) press-fit return line.

Background

On a PCB laminating return line, a belt conveyor is generally used for horizontal conveying, other layers of other PCB plates such as copper foils and the like are conveyed to a transition table through the belt conveyor, then the copper foils are clamped and conveyed to the upper part of an laminating table through a clamping jaw of a laminating clamping machine on the upper part of the laminating table, subsequent laminating of the PCB plates is carried out, the adhesiveness of rubber of a rubber conveyor belt can be self-adhesiveness and tackiness, the self-adhesiveness refers to self-phase adhesion of adhesive substances, and if the adhesiveness is between the rubber and the rubber, the adhesiveness refers to the adhesion between different substances.

When the clamping jaws of the overlapping clamping machine clamp the copper foil, the two sides of the edge of the copper foil are used for clamping, so that the belt width on the transition table can be smoothly clamped only when the width of the belt on the transition table is smaller than that of the copper foil, when the copper foil is conveyed to the transition table from the belt conveyor, the part of the copper foil, which extends out of the end part of the belt of the conveyor, can be bent downwards between the belt conveyor and the transition table due to self gravity, the copper foil faces the side edge of the transition table and the edge of the transition table, and a propping process is carried out in the conveying process, so that the side edge of the copper foil is folded, and the subsequent finished product quality is influenced; the surface of the belt conveyor is smooth, but the copper foil is light, so that static friction between the surface of the belt and the copper foil is insufficient in the conveying process, the copper foil deviates, and the copper foil floats and slips when the conveying speed is high, so that the conveying efficiency is influenced.

Disclosure of Invention

Aiming at the defects of the existing copper foil conveyor in the use process in the background technology, the invention provides an upper copper foil conveyor and a lower copper foil conveyor based on a PCB (printed circuit board) press-fit return line, which have the advantages of improving the conveying efficiency and avoiding the wrinkle of the edges of the copper foils, and solves the technical problems that the edges of the copper foils proposed in the background technology can wrinkle and the conveyed copper foils slip due to the self gravity.

The invention provides the following technical scheme: the utility model provides a copper foil conveyer about based on PCB pressfitting return line, includes the fixed axle, the outside of fixed axle is provided with the transition platform, one side of fixed axle is provided with the driving roller, the outside of driving roller is provided with the conveyer belt, the outside at driving roller both ends is fixedly connected with gear I respectively, the outside meshing of gear I has the ratch that is located between fixed axle and the driving roller, the outside meshing of ratch has gear II, the outside fixedly connected with fixed roller of gear II, the outside of fixed roller is provided with the conveyer belt, be provided with bull stick I that is close to fixed axle one side between fixed axle and the driving roller, be provided with bull stick II that is close to driving roller one side between fixed axle and the driving roller, the outside of bull stick I and bull stick II all is connected with between the conveyer belt, the outside equidistance fixedly connected with fixed block of conveyer belt, one side sliding connection that one side that the inboard of conveyer belt is close to the driving roller has the bull stick that is located between fixed roller and the bull stick II And (7) fixing the plate.

Preferably, an air bag is fixedly connected to the force-bearing side of the tooth block of the gear II, the inner side of the air bag is fixedly communicated with the axis of the gear II, an air blowing pipe is fixedly communicated with the axis of the gear II, and the top end of the air blowing pipe is located below the top end face, close to the transition table, of the conveyor belt.

Preferably, the transmission of gear I, ratch and fixed roll is synchronous, and gear I, ratch and fixed roll are the same with the circumference length of conveyer belt rotation process.

Preferably, both ends face of transition platform is all kept away from to the contact surface both sides between conveyer belt and the transition platform, one side that the conveyer belt is close to the transition platform is not contacted with the outside of transition platform, and one side that the conveyer belt is close to the conveyer belt is infinitely close not to contact with the outside of conveyer belt.

Preferably, the horizontal planes of the rotating rods I and II are the same, and the top end surfaces of the conveyor belts supported by the rotating rods I and II are parallel to the water surface of the top end surface of the transition table.

Preferably, the fixed block is semicircular in shape, and the outer side of the fixed block is in contact with the outer side of the conveying belt.

Preferably, the shape of the fixing plate is in the shape of a circular arc with the driving roller as the center of a circle, and two ends of one side of the fixing plate, which is close to the conveying belt, are in contact with the outer side of the driving roller.

The invention has the following beneficial effects:

1. according to the invention, the conveyor belt is arranged between the transition table and the conveyor belt, so that the copper foil can be driven on the top end surface of the conveyor belt between the top end of the transition table and the top end of the conveyor belt after leaving the top end of the conveyor belt, the flying length of the copper foil in the conveying process is reduced, namely, the bending amount of the copper foil due to the self gravity of the flying part is reduced, the abrasion of the copper foil in the conveying process is reduced, and the arrangement of the conveyor belt can increase the effective conveying area of the total conveying process and improve the conveying efficiency.

2. According to the invention, the fixed block is arranged on the outer side of the conveyor belt, so that in the transmission process between the conveyor belt and the conveyor belt through the transmission roller, the contact surface between the conveyor belt and the conveyor belt moves reversely, and the fixed block on the outer side of the conveyor belt and the surface of the conveyor belt have a relative sliding friction process, so that heat is generated by friction, the temperature of the fixed block is increased, the adhesiveness of the fixed block is increased, and the self-adhesiveness is reduced, namely when the fixed block is in contact with the copper foil, the static friction force between the fixed block and the copper foil is increased, and the adhesiveness between the fixed block and the conveyor belt is reduced, so that the transmission of the copper foil is facilitated.

3. According to the invention, through the arrangement of the fixing plate, heat is generated by mutual friction between two ends of the fixing plate and the transmission roller, so that the fixing plate heats the fixing block at the inner side of the transmission belt, and the action effect of the fixing block is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a transition table and a conveyor belt according to the present invention;

FIG. 2 is an enlarged view of the spacing between the transition table structure and the conveyor belt structure according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is an overall top view of the transition table structure and the conveyor belt structure of the present invention.

In the figure: 1. a fixed shaft; 2. a transition table; 3. a driving roller; 4. a conveyor belt; 5. a gear I; 6. a rack bar; 7. a gear II; 8. a fixed roller; 9. a conveyor belt; 10. a rotating rod I; 11. a rotating rod II; 12. a fixed block; 13. a fixing plate; 14. an air bag; 15. and an air blowing pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a conveyor for feeding and discharging copper foil based on a PCB lamination return line comprises a fixed shaft 1, a transition table 2 is arranged on the outer side of the fixed shaft 1, a driving roller 3 is arranged on one side of the fixed shaft 1, the fixed shaft 1 and the driving roller 3 are both driven by a motor, a conveying belt 4 is arranged on the outer side of the driving roller 3, gears I5 are respectively and fixedly connected to the outer sides of the two ends of the driving roller 3, a toothed bar 6 positioned between the fixed shaft 1 and the driving roller 3 is meshed to the outer side of the gear I5, a gear II 7 is meshed to the outer side of the toothed bar 6, referring to fig. 2, a fixed roller 8 is fixedly connected to the outer side of the gear II 7, a conveying belt 9 is arranged on the outer side of the fixed roller 8, a rotating rod I10 close to one side of the fixed shaft 1 is arranged between the fixed shaft 1 and the driving roller 3, a rotating rod II 11 close to one side of the driving roller 3 is arranged between the fixed shaft 1 and the rotating rod II 11 and the conveying belt 9, fixed blocks 12 are fixedly connected to the outer side of the conveyor belt 9 at equal intervals, and referring to fig. 3, a fixed plate 13 located between the fixed roller 8 and the rotating rod ii 11 is slidably connected to one side, close to the driving roller 3, of the inner side of the conveyor belt 9.

Referring to fig. 2, an air bag 14 is fixedly connected to a stressed side of a tooth block of a gear ii 7, a one-way air inlet valve is fixedly connected to an outer side of the air bag 14, the air bag 14 can buffer a transmission process between the gear ii 7 and a rack 6, an inner side of the air bag 14 is fixedly communicated with an axis of the gear ii 7, the axis of the gear ii 7 is fixedly communicated with an air blowing pipe 15, a top end of the air blowing pipe 15 is located below a top end face of a conveyor belt 9, which is close to a transition table 2, and the top end of the air blowing pipe 15 is arranged to enable the air blowing pipe 15 to blow between a fixed block 12 and a copper foil, so as to help the fixed block 12 and the copper foil to separate from each other, and when the rack 6 and the gear ii 7 are transmitted, the tooth block of the rack 6 pushes an outer tooth block of the gear ii 7, so that the air bag 14 outside the tooth block of the gear ii 7 is squeezed between the tooth blocks, and air inside the air bag 14 is led to the inner side of the air blowing pipe 15 through a shaft rod of the gear ii 7, and the air inside the air blowing pipe 15 can be blown to the position, close to the transition table 2, at the top end of the conveyor belt 9, the fixed block 12 on the top end face of the conveyor belt 9 exchanges heat with the air and the copper foil, so that the temperature of the fixed block 12 is reduced, namely, the adhesiveness to the copper foil is reduced, the copper foil is convenient to convey to the top end of the transition table 2, the air flow blown out by the air blowing pipe 15 acts on two dimensions of temperature and wind power, and the action effect is improved.

Wherein, the transmission of gear I5, ratch 6 and fixed roll 8 is synchronous, and gear I5, ratch 6 and fixed roll 8 are the same with 4 circumference length of rotating the process of conveyer belt, make the transmission to the copper foil between gear I5, ratch 6 and fixed roll 8 and the conveyer belt 4 synchronous, the conveying of the copper foil of being convenient for avoids the bending of copper foil.

Referring to fig. 2 and 4, both sides of a contact surface between the conveyor belt 9 and the transition table 2 are far away from two end surfaces of the transition table 2, one side of the conveyor belt 9 close to the transition table 2 is not in contact with the outer side of the transition table 2, and one side of the conveyor belt 9 close to the conveyor belt 4 is infinitely close to the outer side of the conveyor belt 4, so that the copper foil conveyed at the top end of the conveyor belt 9 is always in an unfolded state through the length setting of the conveyor belt 9, the flying length of the copper foil during the transfer between the two conveyor belts is reduced, the bending amount during the flying is reduced, the edge of the copper foil is prevented from abutting against the edge of the next conveyor belt, the wrinkle loss of the copper foil is reduced, and the finished product quality of the copper foil is improved.

Please refer to fig. 2, the horizontal planes of the rotating rods i 10 and ii 11 are the same, and the top end surface of the conveyor belt 9 supported by the rotating rods i 10 and ii 11 is parallel to the water surface of the top end surface of the transition table 2, the copper foil can be stably driven at the top end of the conveyor belt 9 by the transmission effect of the conveyor belt 9 between the rotating rods i 10 and ii 11, and the conveyor belt 9 is arranged at the outer sides of the rotating rods i 10 and ii 11, so that after the top end of the copper foil conveyor belt 9, the two ends of the copper foil at the top end of the conveyor belt 9 are contained and connected by the conveyor belt 9 without bending, thereby facilitating the complete copper foil conveying process.

Referring to fig. 3, the fixed block 12 is semicircular, the outer side of the fixed block 12 contacts the outer side of the conveyor belt 4, the fixed block 12 is made of natural rubber, the temperature is raised, the adhesive force of the natural rubber is increased, the self-adhesive force is reduced, that is, when the conveyor belt 4 and the conveyor belt 9 are driven by the driving roller 3, the contact surface between the conveyor belt 4 and the conveyor belt 9 is moved in reverse direction, so that the fixed block 12 outside the conveyor belt 9 contacts the surface of the conveyor belt 4 and slides relatively, heat is generated by the surface friction of the fixed block 12, the temperature of the fixed block 12 is raised, the adhesiveness of the fixed block 12 is increased, the self-adhesive property is reduced, that is, when the fixed block 12 contacts the copper foil, the static friction force between the fixed block 12 and the copper foil is increased, and the adhesiveness between the fixed block 12 and the conveyor belt 4 is reduced, so that the copper foil can be more conveniently conveyed, the transfer efficiency of the copper foil is improved.

Please refer to fig. 2, the shape of the fixing plate 13 is a circular arc shape with the driving roller 3 as the center of a circle, two ends of one side of the fixing plate 13 close to the conveyor belt 9 contact with the outer side of the driving roller 3, and the two ends of the fixing plate 13 and the driving roller 3 generate heat by mutual friction, so that the fixing plate 13 heats the fixing block 12 at the inner side of the conveyor belt 9, thereby improving the effect of the fixing block 12, and the fixing plate 13 has a certain supporting effect on the conveyor belt 9, which is convenient for the conveyor belt 9 close to the outer side part of the conveyor belt 4 to perform the transmission effect, and can accurately control the interval between the outer sides of the conveyor belt 9 and the conveyor belt 4, more accurately control the action process of the fixing block 12, and improve the accuracy of the overall effect.

The use method (working principle) of the invention is as follows:

the driving roller 3 is driven by a motor to rotate, the driving roller 3 rotates to drive the conveying belt 4, the copper foil at the top end of the conveying belt 4 moves towards the direction of the conveying belt 9, meanwhile, the driving roller 3 rotates to drive the gear I5 to rotate, the gear I5 rotates to drive the toothed bar 6 to rotate, the toothed bar 6 rotates to drive the gear II 7 to rotate, the gear II 7 rotates to drive the fixed roller 8 to rotate, the fixed roller 8 rotates to drive the outer side conveying belt 9 to rotate, the conveying belt 9 rotates to drive the copper foil moving to the top end of the conveying belt 9 to move towards the direction of the transition table 2, the conveying belt 9 and the conveying belt 4 rotate in the same direction, the contact surface between the toothed bar 6 and the conveying belt 9 reversely moves, the conveying belt 9 is supported by the fixed plate 13 to be close to the shape effect of the outer side of the conveying belt 4, the outer side end of the fixed block 12 connected with the outer side is driven by the rotating of the conveying belt 9 to move, and the outer side end of the fixed block 12 can rub with the outer side of the conveying belt 4, so as to generate heat by friction, meanwhile, the end part of the fixing plate 13 and the transmission roller 3 generate heat by friction mutually, the fixing block 12 is heated at the inner side of the conveyor belt 9, the adhesiveness of the fixing block 12 is increased, the self-adhesiveness is reduced, when the fixing block 12 reaches the top end of the conveyor belt 9 to convey the copper foil subsequently, the fixed copper foil is fixed by the adhesiveness after self-heating, the static friction force between the fixing block 12 and the copper foil is improved, the copper foil is stably conveyed at the top end of the conveyor belt 9, after the fixing block 12 moves from one end of the conveyor belt 9 close to the conveyor belt 4 to one end of the conveyor belt 9 close to the transition table 2, the rest toothed rods 6 of the gear II 7 are meshed and rotated, the air bag 14 is extruded, the air inside the air bag 14 is blown to one end of the top end face of the conveyor belt 9 close to the transition table 2 through the air blowing pipe 15, the self-heat of the fixing block 12 exchanges heat with the air and the copper foil, and the self-temperature of the fixing block 12 is reduced, the adhesiveness is reduced, so that the bottom end face of the copper foil is released, the copper foil is moved to the top end of the transition table 2, and one-time conveyance is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a copper foil conveyer from top to bottom based on PCB pressfitting return line, includes fixed axle (1), the outside of fixed axle (1) is provided with transition platform (2), one side of fixed axle (1) is provided with driving roller (3), the outside of driving roller (3) is provided with conveyer belt (4), its characterized in that: the outer sides of the two ends of the transmission roller (3) are fixedly connected with a gear I (5) respectively, the outer side of the gear I (5) is meshed with a toothed bar (6) located between the fixed shaft (1) and the transmission roller (3), the outer side of the toothed bar (6) is meshed with a gear II (7), the outer side of the gear II (7) is fixedly connected with a fixed roller (8), the outer side of the fixed roller (8) is provided with a conveyor belt (9), a rotating bar I (10) close to one side of the fixed shaft (1) is arranged between the fixed shaft (1) and the transmission roller (3), a rotating bar II (11) close to one side of the transmission roller (3) is arranged between the fixed shaft (1) and the transmission roller (3), the outer sides of the rotating bar I (10) and the rotating bar II (11) are connected with the conveyor belt (9) at equal intervals, the outer side of the conveyor belt (9) is fixedly connected with a fixed block (12), and one side of the inner side of the conveying belt (9), which is close to the transmission roller (3), is connected with a fixing plate (13) which is positioned between the fixing roller (8) and the rotating rod II (11) in a sliding manner.

2. The PCB stitching reflow line based upper and lower copper foil conveyors as claimed in claim 1, wherein: the gear block stress side of the gear II (7) is fixedly connected with an air bag (14), the inner side of the air bag (14) is fixedly communicated with the axis of the gear II (7), the axis of the gear II (7) is fixedly communicated with an air blowing pipe (15), and the top end of the air blowing pipe (15) is located below the conveying belt (9) close to the top end face of the transition table (2).

3. The PCB stitching reflow line based upper and lower copper foil conveyors as claimed in claim 1, wherein: the transmission of gear I (5), ratch (6) and fixed roll (8) is synchronous, and gear I (5), ratch (6) and fixed roll (8) are the same with conveyer belt (4) rotation process's circumference length.

4. The PCB stitching reflow line based upper and lower copper foil conveyors as claimed in claim 1, wherein: the both ends face of transition platform (2) is all kept away from to the contact surface both sides between conveyer belt (9) and transition platform (2), one side that conveyer belt (9) are close to transition platform (2) is not contacted with the outside of transition platform (2), and one side that conveyer belt (9) are close to conveyer belt (4) is infinitely close not to contact with the outside of conveyer belt (4).

5. The PCB stitching reflow line based upper and lower copper foil conveyors as claimed in claim 1, wherein: the horizontal planes of the rotating rod I (10) and the rotating rod II (11) are the same, and the top end surface of the conveyor belt (9) supported by the rotating rod I (10) and the rotating rod II (11) is parallel to the water surface of the top end surface of the transition table (2).

6. The PCB stitching reflow line based upper and lower copper foil conveyors as claimed in claim 1, wherein: the fixed block (12) is semicircular in shape, and the outer side of the fixed block (12) is in contact with the outer side of the conveying belt (4).

7. The conveyor based on the upper copper foil and the lower copper foil of the PCB lamination return line of claim 1, is characterized in that: the shape of fixed plate (13) is the arc of using driving roller (3) as the centre of a circle, fixed plate (13) are close to one side both ends of conveyer belt (9) and are contacted with the outside of driving roller (3).