CN213079608U

CN213079608U - Production equipment for dip soldering of solder sheets

Info

Publication number: CN213079608U
Application number: CN202020679682.4U
Authority: CN
Inventors: 李干明
Original assignee: Hubei University of Science and Technology
Current assignee: Hubei University of Science and Technology
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-04-30
Anticipated expiration: 2030-04-28

Abstract

The utility model provides a production facility of dip soldering solder piece belongs to mechanical technical field. The production equipment comprises a rack and a plurality of production units arranged on the rack, wherein each production unit comprises a discharging bobbin, a feeding device, a shearing device and a tabletting device, the feeding device comprises a straightening pipe, an upper pressing wheel and a lower pressing wheel which are rotationally connected to the straightening pipe, the shearing device comprises a shearing rotating wheel which is rotationally connected to the rack, a containing cavity which penetrates through the circumferential surface of the shearing rotating wheel is formed in the shearing rotating wheel, an arched shearing edge is arranged at an opening of the containing cavity on the circumferential surface of the shearing rotating wheel, and a guide chute corresponding to the opening of the containing cavity is arranged below the shearing rotating wheel; the tabletting device comprises a cavity positioned at the tail end of the guide chute, a lower tabletting positioned below the cavity and an upper tabletting positioned above the feeding port, the cavity is opened from top to bottom, the upper tabletting is controlled by an upper pressing driving mechanism, and the lower tabletting is controlled by a lower pressing driving mechanism. The utility model has the advantages of high production efficiency.

Description

Production equipment for dip soldering of solder sheets

Technical Field

The utility model belongs to the technical field of machinery, a production facility of dip soldering solder piece is related to.

Background

Dip soldering (dip welding) refers to a soldering method using a metal bath, solder pieces are small in size and thin in thickness, and by adopting traditional pressing equipment, the feeding efficiency is low, the situations of confusion, multiple feeding, blank pressing and the like are easy to occur, and demolding is difficult after pressing, and due to the fact that two side faces of each solder piece are serrated (arranged based on welding efficiency and welding effect), great difficulty is brought to demolding, and the overall efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists to current technique, provide a production facility of dip soldering solder piece, the utility model aims to solve the technical problem that improves production efficiency.

The purpose of the utility model can be realized by the following technical proposal: the production equipment for dip soldering of the solder sheets is characterized by comprising a rack and a plurality of production units arranged on the rack, wherein each production unit comprises a discharging bobbin, a feeding device, a shearing device and a tabletting device, the feeding device comprises a straightening pipe, an upper pressing wheel and a lower pressing wheel which are rotatably connected to the straightening pipe, the shearing device comprises a shearing runner which is rotatably connected to the rack, an accommodating cavity which penetrates through the peripheral surface of the shearing runner is formed in the shearing runner, an arched shearing edge is arranged at an opening of the accommodating cavity on the peripheral surface of the shearing runner, and a guide chute corresponding to the opening of the accommodating cavity is arranged below the shearing runner;

the tabletting device comprises a cavity at the tail end of the guide chute, a lower tabletting below the cavity and an upper tabletting above the feeding port, the cavity is open at the upper end and the lower end, the upper tabletting can be driven by a gap to close the upper pressing driving mechanism of the upper end opening of the cavity, and the lower tabletting can be driven by a gap to close the lower pressing driving mechanism of the lower end opening of the cavity.

In the production equipment for the dip soldering solder sheet, the shearing blade comprises two side blades which are symmetrically distributed on two sides of the opening of the accommodating cavity, and the distance between the two side blades is gradually reduced to zero from one end close to the running direction of the shearing rotating wheel to the other end.

In the production equipment for dip soldering of the solder sheet, a short shaft coaxial with the shearing rotating wheel is fixedly arranged in the shearing rotating wheel, a shaft sleeve is sleeved on the short shaft, the shaft sleeve is connected with the short shaft through a torsion spring, a shifting piece is fixedly arranged on the shaft sleeve, and the shifting piece is positioned in the accommodating cavity; the plectrum is under initial condition, and the outer end of plectrum is located the inboard in shearing sword middle part, the plectrum will hold the chamber and divide into two cavities.

In the production equipment for the dip soldering flux sheet, the upward pressing driving mechanism comprises an upper sliding sleeve fixed on the frame, an upper pressing rod connected in the upper sliding sleeve in a sliding manner and an upper step wheel rotationally connected on the frame, the upper end of the upper pressing rod abuts against the upper step wheel, the lower end of the upper pressing rod is fixedly connected with the upper pressing sheet, a first return spring is connected between the upper sliding sleeve and the upper pressing sheet, the upper step wheel is provided with an upper step surface and an upper secondary step surface, the distance between the upper secondary step surface and the axis of the upper step wheel is greater than the distance between the upper step surface and the axis of the upper step wheel, and the joint of the upper step surface and the upper secondary step surface is smooth and excessive;

the lower pressing driving mechanism comprises a lower sliding sleeve fixed on the frame, a lower pressing rod connected in the lower sliding sleeve in a sliding mode and a lower step wheel rotationally connected on the frame, the lower end of the lower pressing rod is abutted against the lower step wheel, the upper end of the lower pressing rod is fixedly connected with a lower pressing sheet, a second reset spring is connected between the lower sliding sleeve and the lower pressing sheet, a lower step surface, a lower third step surface and a lower second step surface are sequentially arranged on the lower step wheel along the rotating direction of the lower step wheel, the distance between the lower second step surface and the axis of the lower step wheel is larger than the distance between the lower step surface and the axis of the lower step wheel, the distance between the lower third step surface and the axis of the lower step wheel is larger than the distance between the lower second step surface and the axis of the lower step wheel, the junction of the lower step surface and the lower second step surface is smooth and excessive, the joint of the lower secondary step surface and the lower tertiary step surface is smooth and excessive;

the end of the upper secondary step surface is provided with a bulge, the upper pressure rod is internally and slidably connected with a top rod, the lower end of the top rod can extend out of the lower surface of the lower pressing plate, the upper end of the upper pressure rod is provided with two pressure arms, the bulge is positioned in the middle of the upper secondary step surface and between the two pressure arms, the top rod corresponds to the bulge, the upper end of the top rod is positioned between the two pressure arms, and a third reset spring is connected between the top rod and the upper pressure rod.

In the above apparatus for producing a solder sheet by dip soldering, the upper press bar and the lower press bar are coaxial and have an inclination of 45 ° with respect to the middle of the horizontal plane.

In the above production apparatus for dip soldering a solder sheet, the frame is provided with a receiving trough located below each cavity.

In the production equipment for the dip soldering solder sheet, the upper step wheel is fixedly provided with the first gear, the lower step wheel is fixedly provided with the second gear, the shearing rotating wheel is fixedly provided with the third gear, the lower step wheel is connected with an output shaft of a driving motor, the first gear, the second gear and the third gear are gears with the same specification, and the first gear, the second gear and the third gear are connected through a toothed belt.

In the production equipment for dip soldering of the solder sheet, an intermittent transmission mechanism is arranged between the lower pressing wheel and the upper pressing wheel, the intermittent transmission mechanism comprises an inner gear ring arranged in the lower pressing wheel, a middle sleeve rotatably connected in the lower pressing wheel and an intermediate shaft rotatably connected in the middle sleeve, the upper pressing wheel is rotatably connected with a rotating shaft, the intermediate shaft is fixedly connected with the rotating shaft, a first outer gear ring is arranged outside the upper pressing wheel, a second outer gear ring meshed with the first outer gear ring is arranged outside the lower pressing wheel, a sliding hole is formed in the middle sleeve along the direction perpendicular to the axis of the middle sleeve, a bolt is slidably connected in the sliding hole, a locking part capable of being inserted into a tooth socket of the inner gear ring is arranged at the outer end of the bolt, an avoidance groove corresponding to the inner end of the bolt is formed in the intermediate shaft, the included angle between the two ends of the avoidance groove is larger than, a fourth reset spring is connected between the bolt and the middle sleeve; when the inner end of the bolt is positioned in the avoidance groove, the reset spring IV can drive the outer end of the bolt to be separated from the tooth groove of the inner gear ring.

In the production equipment for the dip soldering solder sheet, a gear four is fixedly arranged on the intermediate sleeve, the gear four and the gear have the same specification, and the toothed belt is simultaneously connected with the gear one, the gear two, the gear three and the gear four.

The space that each production unit occupy all is the flat region, and occupation space is little, and each production unit can realize synchronous operation through same driving motor.

After the opening of the containing cavity is covered by the shearing blade part, an annular shape with gradually reduced width is formed, the section where the shearing blade is located is a section with smaller width, the tail end of the section shrinks to zero, the upper pressing wheel and the lower pressing wheel push welding sheet strip-shaped blank discharged by the discharging bobbin, the rotation of the upper pressing wheel and the lower pressing wheel is suspended after the length of the leather inserted into the containing cavity reaches the specified length, the shearing rotating wheel continuously rotates, the blank extending into the containing cavity is cut under the action of the shearing blade, in the process, under the action of a torsional spring, the outer end of the shifting sheet is abutted against the blank until the blank is cut, under the action of the restoring force of the torsional spring, the cut blank particles are driven into the containing cavity below the shifting sheet, when the containing cavity runs to the guide chute, the blank guide chute enters the cavity, the upper pressing sheet is positioned above the cavity before the blank particles enter the cavity, and the upper end of the upper pressing sheet is abutted against the upper stage surface, vacate the blank granule and enter the space of the die cavity, the lower end opening of the die cavity of closing of the lower pressure plate, the lower end pressed down is supported and supported on the lower second grade step surface, keep the space that the volume is greater than the volume of finished product in the die cavity, in order to facilitate the smooth entry die cavity of blank granule; the shearing rotating wheel continues to rotate, and before the opening of the accommodating cavity corresponds to the extension line of the strip-shaped blank, the upper pressing sheet and the lower pressing sheet are in the following states: the upper step wheel rotates to the upper second-stage step surface to be contacted with the upper end of the upper pressure rod, the upper pressing sheet completely closes the upper end opening of the cavity, and the lower step wheel rotates to the lower third-stage step surface to be contacted with the lower end of the lower pressure rod, so that the blank is pressed; the shearing rotating wheel continues to rotate, the upper pressing wheel and the lower pressing wheel run again when the opening of the containing cavity is just corresponding to the extension line of the strip-shaped blank, the strip-shaped blank is fed, and in the process of shearing the blank, the upper pressing sheet and the lower pressing sheet are in the states of: the lower step wheel is contacted with the lower step surface, the lower pressing sheet is completely separated from the lower end opening of the cavity, a space allowing a finished product to fall out of the cavity is vacated, the upper step wheel is still contacted with the upper secondary step surface, and when the lower step wheel runs to the tail end of the upper secondary step surface, the ejector rod is acted by the bulge, so that the lower end of the ejector rod extends out of the lower surface of the upper pressing sheet, the finished product material in the cavity is slightly pushed to be stripped from the cavity, the upper end of the ejector rod and the upper end of the upper pressing rod are simultaneously acted on the upper step surface or the upper secondary step surface except the action of the bulge, and the lower end surface of the ejector rod is parallel and level with the lower end surface of the upper; and the shearing rotating wheel continuously rotates to shear the blank, the next production period is started, and the process is circulated.

The first gear, the second gear, the third gear and the fourth gear have the same specification and are continuously driven and driven by the same toothed belt, so that synchronous operation of the shearing rotating wheel, the upper step wheel, the lower step wheel and the middle sleeve at the same angular speed is ensured, the same side of the toothed belt is meshed with the first gear, the second gear, the third gear and the fourth gear, the same-direction rotation of the first gear, the second gear, the third gear and the fourth gear is ensured, an intermittent driving mechanism is arranged for preventing feeding when the strip-shaped blank is not aligned with the opening of the accommodating cavity, and the mechanism has the following principle: the middle sleeve is continuously driven, when the inner end of the bolt is positioned in the avoidance groove, the bolt is retracted under the action of the reset spring IV, the locking part at the outer end of the bolt is separated from the tooth groove of the inner gear ring, the lower pressing wheel provided with the inner gear ring slips relative to the middle sleeve, the middle shaft rotationally connected in the middle sleeve is connected with the rotating shaft, the position of the avoidance groove is kept unchanged, when the middle sleeve continues to rotate until the inner end of the bolt is separated from the avoidance groove and tightly presses the peripheral surface of the middle shaft, the bolt extends outwards, the locking part at the outer end of the bolt is inserted into the tooth groove of the inner gear ring, so that the middle sleeve is locked with the inner gear ring, in this state, the middle sleeve and the lower pressing wheel synchronously rotate, the outer tooth ring I on the upper pressing wheel is meshed with the outer tooth ring II.

It can be seen that the equipment has strong cooperativity, the blank particles are orderly sheared and fed, the smooth feeding and the smooth demoulding are fully considered in the pressing process, the blank particles are ensured to be sheared and pressed one by one, and the efficiency is high.

Drawings

Fig. 1 is a schematic diagram of the structure of a single production unit in a production facility.

Fig. 2 is an enlarged view of a portion a in fig. 1 (i.e., a structural view of the shearing apparatus in a shearing state).

Fig. 3 is a schematic structural view of the shearing apparatus after completion of shearing.

Fig. 4 is a schematic view showing the state of the shearing apparatus when the sheared billet pieces are forced into the guide chute.

Fig. 5 is a schematic view of the connection structure of the toothed belt.

Fig. 6 is a schematic perspective view of the upper pressure lever.

FIG. 7 is a cross-sectional view of the upper puck and the lower puck.

Fig. 8 is a sectional view in the direction B-B in fig. 7.

Fig. 9 is an enlarged view of a portion C in fig. 8.

FIG. 10 is a schematic plan view of a shear wheel.

FIG. 11 is a schematic view of the tablet press apparatus in the feeding state.

FIG. 12 is a schematic structural view of a tablet press device after feeding and before pressing.

Fig. 13 is a schematic structural view of the tabletting device in the pressed state.

Fig. 14 is a schematic view of the sheeting apparatus in a demolded condition.

In the figure, 1, a frame; 11. a discharging bobbin; 12. straightening a pipe; 21. an upper pinch roller; 22. a lower pinch roller; 3. shearing a rotating wheel; 31. an accommodating chamber; 32. a cutting edge; 33. a material guide chute; 34. a minor axis; 35. a shaft sleeve; 36. a torsion spring; 37. a shifting sheet; 4. a cavity; 41. pressing the mixture into tablets; 42. an upper sliding sleeve; 43. an upper pressure lever; 44. an upper step wheel; 45. a first return spring; 46. a step surface of the upper stage; 47. an upper secondary step surface; 48. a protrusion; 49. pressing the arm; 51. pressing the mixture downwards; 52. a lower sliding sleeve; 53. a lower pressure lever; 54. a lower step wheel; 55. a second return spring; 56. a next step surface; 57. a lower secondary step surface; 58. a lower three-stage step surface; 61. a top rod; 62. a third return spring; 71. a first gear; 72. a second gear; 73. a third gear; 74. a fourth gear; 75. a toothed belt; 81. an inner gear ring; 82. a middle sleeve; 83. an intermediate shaft; 84. a rotating shaft; 85. a first outer gear ring; 86. a second outer gear ring; 87. a bolt; 88. an avoidance groove; 9. a material receiving groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the production equipment comprises a frame 1 and a plurality of production units arranged on the frame 1, wherein each production unit comprises a discharging bobbin 11, a feeding device, a shearing device and a tabletting device, the feeding device comprises a straightening pipe 12, an upper pressing wheel 21 and a lower pressing wheel 22 which are rotatably connected to the straightening pipe 12, the shearing device comprises a shearing runner 3 which is rotatably connected to the frame 1, a containing cavity 31 which penetrates through the peripheral surface of the shearing runner 3 is formed in the shearing runner 3, an arched shearing edge 32 is arranged at an opening of the containing cavity 31 on the peripheral surface of the shearing runner 3, and a guide chute 33 corresponding to the opening of the containing cavity 31 is arranged below the shearing runner 3;

the tabletting device comprises a cavity 4 positioned at the tail end of the guide chute 33, a lower tabletting 51 positioned below the cavity 4 and an upper tabletting 41 positioned above the feeding port, the cavity 4 is opened up and down, the upper tabletting 41 is controlled by an upper pressing driving mechanism capable of driving the upper tabletting 41 to close the upper end opening of the cavity 4 in a clearance manner, and the lower tabletting 51 is controlled by a lower pressing driving mechanism capable of driving the lower tabletting 51 to close the lower end opening of the cavity 4 in a clearance manner.

As shown in fig. 1, 2, 3, 4 and 10, the cutting edge 32 includes two side edges symmetrically distributed on two sides of the opening of the accommodating cavity 31, and the distance between the two side edges gradually decreases from one end close to the running direction of the cutting wheel 3 to the other end.

A short shaft 34 coaxial with the shearing rotating wheel 3 is fixedly arranged in the shearing rotating wheel 3, a shaft sleeve 35 is sleeved on the short shaft 34, the shaft sleeve 35 is connected with the short shaft 34 through a torsion spring 36, a shifting sheet 37 is fixedly arranged on the shaft sleeve 35, and the shifting sheet 37 is positioned in the accommodating cavity 31; in the initial state of the pick 37, the outer end of the pick 37 is located inside the middle of the cutting edge 32, and the pick divides the accommodation chamber 31 into two chambers.

As shown in fig. 1, 6, 11, 12, 13 and 14, the upward-pressing driving mechanism includes an upper sliding sleeve 42 fixed on the frame 1, an upper pressing rod 43 slidably connected in the upper sliding sleeve 42, and an upper step wheel 44 rotatably connected on the frame 1, an upper end of the upper pressing rod 43 abuts against the upper step wheel 44, a lower end of the upper pressing rod 43 is fixedly connected with the upper pressing sheet 41, a first return spring 45 is connected between the upper sliding sleeve 42 and the upper pressing sheet 41, the upper step wheel 44 is provided with an upper step surface 46 and an upper secondary step surface 47, a distance between the upper secondary step surface 47 and an axis of the upper step wheel 44 is greater than a distance between the upper step surface 46 and the axis of the upper step wheel 44, and a connection part between the upper step surface 46 and the upper secondary step surface 47 is smooth and excessive;

the downward pressing driving mechanism comprises a lower sliding sleeve 52 fixed on the frame 1, a lower pressing rod 53 connected in the lower sliding sleeve 52 in a sliding manner and a lower step wheel 54 connected on the frame 1 in a rotating manner, the lower end of the lower pressing rod 53 is abutted against the lower step wheel 54, the upper end of the lower pressing rod 53 is fixedly connected with a lower pressing sheet 51, a second return spring 55 is connected between the lower sliding sleeve 52 and the lower pressing sheet 51, a lower step surface 56, a lower third step surface 58 and a lower second step surface 57 are sequentially arranged on the lower step wheel 54 along the rotating direction of the lower step wheel 54, the distance between the lower second step surface 57 and the axis of the lower step wheel 54 is greater than the distance between the lower step surface 56 and the axis of the lower step wheel 54, the distance between the lower third step surface 58 and the axis of the lower step wheel 54 is greater than the distance between the lower second step surface 57 and the axis of the lower step wheel 54, and the connection part of the lower step surface 56 and the lower second step surface 57 is smooth and excessive, the junction of the lower-stage step surface 56 and the lower-stage step surface 58 is smooth and excessive, and the junction of the lower-stage step surface 57 and the lower-stage step surface 58 is smooth and excessive;

the tail end of the upper secondary step surface 47 is provided with a bulge 48, the upper pressure rod 43 is internally and slidably connected with a top rod 61, the lower end of the top rod 61 can extend out of the lower surface of the lower pressing sheet 51, the upper end of the upper pressure rod 43 is provided with two pressure arms 49, the bulge 48 is positioned in the middle of the upper secondary step surface 47, the top rod 61 corresponds to the bulge 48, the upper end of the top rod 61 is positioned between the two pressure arms 49, and a return spring III 62 is connected between the top rod 61 and the upper pressure rod 43.

The upper pressure bar 43 and the lower pressure bar 53 are coaxial and form an inclination angle of 45 degrees with the middle of the horizontal plane. A material receiving groove 9 positioned below each cavity 4 is arranged on the frame 1.

As shown in fig. 5, 7, 8 and 9, a first gear 71 is fixedly arranged on the upper step wheel 44, a second gear 72 is fixedly arranged on the lower step wheel 54, a third gear 73 is fixedly arranged on the shearing rotating wheel 3, the lower step wheel 54 is connected with an output shaft of a driving motor, the first gear 71, the second gear 72 and the third gear 73 are gears with equal specifications, and the first gear 71, the second gear 72 and the third gear 73 are connected through a toothed belt 75.

An intermittent transmission mechanism is arranged between the lower pinch roller 22 and the upper pinch roller 21, the intermittent transmission mechanism comprises an inner gear ring 81 arranged in the lower pinch roller 22, the middle sleeve 82 is rotatably connected in the lower pressing wheel 22, the middle shaft 83 is rotatably connected in the middle sleeve 82, the upper pressing wheel 21 is rotatably connected with a rotating shaft 84, the middle shaft 83 is fixedly connected with the rotating shaft 84, a first outer gear ring 85 is arranged outside the upper pressing wheel 21, a second outer gear ring 86 meshed with the first outer gear ring 85 is arranged outside the lower pressing wheel 22, a sliding hole is formed in the middle sleeve 82 in the direction perpendicular to the axis of the middle sleeve 82, a bolt 87 is connected in the sliding hole in a sliding mode, the outer end of the bolt 87 is provided with a locking part capable of being inserted into a tooth groove of the inner gear ring 81, an avoidance groove 88 corresponding to the inner end of the bolt 87 is formed in the middle shaft 83, the included angle between the two ends of the avoidance groove 88 is larger than 180 degrees, and a; when the inner end of the bolt 87 is positioned in the avoiding groove 88, the reset spring IV can drive the outer end of the bolt 87 to be separated from the tooth groove of the inner gear ring 81.

The intermediate sleeve 82 is fixedly provided with a fourth gear 74, the fourth gear 74 and the first gear 71 have the same specification, and the toothed belt 75 is simultaneously connected with the first gear 71, the second gear 72, the third gear 73 and the fourth gear 74.

After the opening of the accommodating cavity 31 is partially covered by the cutting edge 32, an annular shape with gradually reduced width is formed, the section where the cutting edge 32 is located is a section with smaller width, and the tail end of the cutting edge shrinks to zero, the upper pressure wheel 21 and the lower pressure wheel 22 push the soldering lug strip-shaped blank discharged from the discharging bobbin 11, the rotation of the upper pressure wheel 21 and the lower pressure wheel 22 is suspended after the length of the leather inserted into the accommodating cavity 31 reaches the specified length, the cutting rotating wheel 3 continuously rotates, the blank extending into the accommodating cavity 31 is cut under the action of the cutting edge 32, in the process, under the action of the torsion spring 36, the outer end of the plectrum 37 is abutted against the blank until the blank is cut, under the action of the restoring force of the torsion spring 36, the cut blank particles are driven into the accommodating cavity 31 below the plectrum 37, and when the accommodating cavity 31 runs to the guide chute 33, the blank particles enter the cavity 4 along the guide chute 33, before the blank particles enter the cavity 4, the upper pressing sheet 41 is positioned above the cavity 4, the upper end of the upper pressing sheet abuts against the upper-stage step surface 46 to vacate the space for the blank particles to enter the cavity 4, the lower pressing sheet 51 closes the lower end opening of the cavity 4, the lower end of the lower pressing sheet abuts against the lower-stage step surface 57, and the space with the volume larger than the volume of a finished product in the cavity 4 is reserved, so that the blank particles can smoothly enter the cavity 4; the shearing rotor 3 continues to rotate, and before the opening of the containing cavity 31 corresponds to the extension line of the strip-shaped blank, the upper pressing sheet 41 and the lower pressing sheet 51 are in the following states: the upper step wheel 44 rotates to the upper secondary step surface 47 to contact with the upper end of the upper pressure rod 43, the upper pressing sheet 41 completely closes the upper end opening of the cavity 4, and the lower step wheel 54 rotates to the lower tertiary step surface 58 to contact with the lower end of the lower pressure rod 53, so that the blank is pressed; the shearing rotating wheel 3 continues to rotate, when the opening of the accommodating cavity 31 is exactly corresponding to the extension line of the strip-shaped blank, the upper pressing wheel 21 and the lower pressing wheel 22 operate again to feed the strip-shaped blank, and in the process of shearing the blank, the upper pressing sheet 41 and the lower pressing sheet 51 are in the following states: the lower step wheel 54 contacts with the lower step surface 56, the lower pressing sheet 51 is completely separated from the lower end opening of the cavity 4, and a space allowing finished products to fall out of the cavity 4 is vacated, while the upper step wheel 44 is still in contact with the upper second step surface 47, and when the lower pressing sheet runs to the tail end of the upper second step surface 47, the ejector rod 61 is acted by the bulge 48, so that the lower end of the ejector rod 61 extends out of the lower surface of the upper pressing sheet 41, the finished products in the cavity 4 are slightly pushed, so that the finished products are separated from the cavity 4, the ejector rod 61 is acted by the bulge 48, the upper end of the ejector rod and the upper end of the upper pressing rod 43 act on the upper step surface 46 or the upper second step surface 47 at the same time, and the lower end surface of the ejector rod 61 is flush with; the shearing rotating wheel 3 continues to rotate to cut the blank, the next production period is started, and the process is circulated.

The first gear 71, the second gear 72, the third gear 73 and the fourth gear 74 have the same specification and are continuously driven by the same toothed belt 75, so that the shearing rotating wheel 3, the upper step wheel 44, the lower step wheel 54 and the intermediate sleeve 82 synchronously run at the same angular speed, the same side of the toothed belt 75 is meshed with the first gear 71, the second gear 72, the third gear 73 and the fourth gear 74, the same-direction rotation of the first gear 71, the second gear 72, the third gear 73 and the fourth gear 74 is ensured, an intermittent driving mechanism is arranged for preventing feeding when the strip-shaped blank is not aligned with the opening of the accommodating cavity 31, and the mechanism has the following principle: the middle sleeve 82 is continuously driven, when the inner end of the bolt 87 is positioned in the avoidance groove 88, the bolt 87 retracts under the action of the reset spring IV, the locking part at the outer end of the bolt 87 is separated from the tooth groove of the inner gear ring 81, the lower press wheel 22 provided with the inner gear ring 81 slips relative to the middle sleeve 82, the middle shaft 83 rotatably connected in the middle sleeve 82 is connected with the rotating shaft 84, the position of the avoidance groove 88 is kept unchanged, when the middle sleeve 82 continuously rotates until the inner end of the bolt 87 is separated from the avoidance groove 88 and tightly pressed on the peripheral surface of the middle shaft 83, the bolt 87 extends outwards, the locking part at the outer end of the bolt 87 is inserted into the tooth groove of the inner gear ring 81, the middle sleeve 82 is locked with the inner gear ring 81, in this state, the middle sleeve 82 and the lower press wheel 22 synchronously rotate, the first gear ring 85 on the upper press wheel 21 is engaged with the second gear ring 86 on the lower press wheel 22, and.

It can be seen that the equipment has strong cooperativity, the blank particles are orderly sheared and fed, the smooth feeding and the smooth demoulding are fully considered in the pressing process, the blank particles are ensured to be sheared and pressed one by one, and the efficiency is high. The shape of shearing the sword, the rotatory shearing of runner is cuted in the cooperation, can make the sheared edge crescent, cuts off remaining position until two side sword junctions, compares current mode of cutting, and its fracture roughness is better, is difficult to appear the burr, makes the unloading smooth-going, and the suppression is even, does benefit to the quality of soldering lug.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A production device for dip soldering of solder sheets is characterized in that the production device comprises a frame (1) and a plurality of production units arranged on the frame (1), the production unit comprises a discharging bobbin (11), a feeding device, a shearing device and a tabletting device, the feeding device comprises a straightening pipe (12), an upper pressing wheel (21) and a lower pressing wheel (22) which are rotationally connected to the straightening pipe (12), the shearing device comprises a shearing rotating wheel (3) which is rotationally connected with the frame (1), the inside of the shearing rotating wheel (3) is provided with an accommodating cavity (31) which penetrates through the circumferential surface of the shearing rotating wheel (3), the containing cavity (31) is provided with an arched cutting edge (32) at the opening on the circumferential surface of the cutting rotating wheel (3), a guide chute (33) corresponding to the opening of the accommodating cavity (31) is arranged below the shearing rotating wheel (3);

the preforming device is including cavity (4) that is located baffle box (33) end, lower preforming (51) that is located cavity (4) below and last preforming (41) that is located pan feeding mouth top, opening about cavity (4), go up preforming (41) and can drive last preforming (41) through one clearance and close cavity (4) upper end open-ended and press actuating mechanism control on, preforming (51) can drive through one clearance down preforming (51) and close cavity (4) lower extreme open-ended and press actuating mechanism control down.

2. An apparatus for producing an immersion soldering flux as claimed in claim 1, wherein the shearing blade (32) comprises two side blades symmetrically disposed on both sides of the opening of the receiving chamber (31), and the distance between the two side blades is gradually reduced from one end of the shearing rotor (3) to the other end thereof.

3. An apparatus for producing solder sheet by dip soldering according to claim 2, wherein the shear rotor (3) is provided with a stub shaft (34) coaxially with the shear rotor (3), the stub shaft (34) is sleeved with a sleeve (35), the sleeve (35) is connected with the stub shaft (34) through a torsion spring (36), the sleeve (35) is provided with a pick (37), and the pick (37) is located in the containing cavity (31); the outer end of the poking piece (37) is positioned on the inner side of the middle part of the shearing blade (32) in the initial state of the poking piece (37), and the poking piece divides the containing cavity (31) into two chambers.

4. The production equipment of an immersion welding solder sheet according to claim 3, characterized in that the upward-pressing driving mechanism comprises an upper sliding bush (42) fixed on the frame (1), an upper pressing rod (43) connected in the upper sliding bush (42) in a sliding manner, and an upper step wheel (44) rotatably connected on the frame (1), the upper end of the upper pressing rod (43) abuts against the upper step wheel (44), the lower end of the upper pressing rod (43) is fixedly connected with the upper pressing plate (41), a first return spring (45) is connected between the upper sliding bush (42) and the upper pressing plate (41), the upper step wheel (44) is provided with an upper step surface (46) and an upper secondary step surface (47), the distance between the upper secondary step surface (47) and the axis of the upper step wheel (44) is larger than the distance between the upper step surface (46) and the axis of the upper step wheel (44), the joint of the upper-stage step surface (46) and the upper-stage step surface (47) is smooth and excessive;

push down actuating mechanism including fix lower sliding sleeve (52) in frame (1), depression bar (53) and rotation connection lower step wheel (54) on frame (1) of sliding connection in lower sliding sleeve (52), the lower extreme of depression bar (53) supports and leans on lower step wheel (54), the upper end and the holding down piece (51) of depression bar (53) are fixed continuous down, be connected with reset spring two (55) down between sliding sleeve (52) and holding down piece (51), lower step wheel (54) is gone up and is followed lower step wheel (54) direction of rotation and set gradually lower one-level step face (56), lower tertiary step face (58) and lower second grade step face (57), distance between the axis of lower second grade step face (57) from lower step wheel (54) is greater than the distance between the axis of lower one-level step face (56) from lower step wheel (54), distance between the axis of lower tertiary step face (58) from lower step wheel (54) is greater than lower second grade step face, lower tertiary step face (58) is greater than the distance between the axis of lower step wheel (54) (57) The distance between the lower step wheel (54) and the axis of the lower step wheel is less than the distance between the lower step wheel (54) and the axis of the lower step wheel, the junction between the lower step surface (56) and the lower step surface (57) is smooth and excessive, the junction between the lower step surface (56) and the lower step surface (58) is smooth and excessive, and the junction between the lower step surface (57) and the lower step surface (58) is smooth and excessive;

the tail end of the upper secondary step surface (47) is provided with a protrusion (48), the upper pressing rod (43) is connected with a push rod (61) in a sliding mode, the lower end of the push rod (61) can extend out of the lower surface of the lower pressing plate (51), the upper end of the upper pressing rod (43) is provided with two pressing arms (49), the protrusion (48) is located in the middle of the upper secondary step surface (47) and between the two pressing arms, the push rod (61) corresponds to the protrusion (48), the upper end of the push rod (61) is located between the two pressing arms (49), and a third reset spring (62) is connected between the push rod (61) and the upper pressing rod (43).

5. An apparatus for producing an immersion solder sheet as claimed in claim 4, wherein the upper pressure lever (43) and the lower pressure lever (53) are coaxial and have an inclination of 45 ° to the middle of the horizontal plane.

6. An apparatus for producing an immersion solder sheet according to claim 5, characterized in that the frame (1) is provided with a receiving groove (9) below each cavity (4).

7. A production device for dip soldering of solder sheets according to claim 5, characterized in that the first gear (71) is fixedly arranged on the upper step wheel (44), the second gear (72) is fixedly arranged on the lower step wheel (54), the third gear (73) is fixedly arranged on the shearing rotating wheel (3), the lower step wheel (54) is connected with an output shaft of a driving motor, the first gear (71), the second gear (72) and the third gear (73) are gears with equal specification, and the first gear (71), the second gear (72) and the third gear (73) are connected with each other through a toothed belt (75).

8. The production equipment for dip soldering the solder sheets according to claim 7, wherein an intermittent transmission mechanism is arranged between the lower pressing wheel (22) and the upper pressing wheel (21), the intermittent transmission mechanism comprises an inner gear ring (81) arranged in the lower pressing wheel (22), an intermediate sleeve (82) rotatably connected in the lower pressing wheel (22) and an intermediate shaft (83) rotatably connected in the intermediate sleeve (82), a rotating shaft (84) is rotatably connected to the upper pressing wheel (21), the intermediate shaft (83) is fixedly connected with the rotating shaft (84), an outer gear ring I (85) is arranged outside the upper pressing wheel (21), an outer gear ring II (86) meshed with the outer gear ring I (85) is arranged outside the lower pressing wheel (22), a sliding hole is arranged on the intermediate sleeve (82) along the direction vertical to the axis of the intermediate sleeve (82), and a plug pin (87) is slidably connected in the sliding hole, the outer end of the bolt (87) is provided with a locking part which can be inserted into a tooth groove of the inner gear ring (81), the intermediate shaft (83) is provided with an avoiding groove (88) corresponding to the inner end of the bolt (87), an included angle between two ends of the avoiding groove (88) is larger than 180 degrees, and a reset spring IV is connected between the bolt (87) and the intermediate sleeve (82); when the inner end of the bolt (87) is positioned in the avoidance groove (88), the reset spring IV can drive the outer end of the bolt (87) to be separated from the tooth groove of the inner gear ring (81).

9. An apparatus for producing an immersion soldering solder sheet according to claim 8, wherein a fourth gear (74) is fixedly disposed on the intermediate sleeve (82), the fourth gear (74) has the same specification as the first gear (71), and the toothed belt (75) is connected to the first gear (71), the second gear (72), the third gear (73) and the fourth gear (74) at the same time.