Copper sheet feeding and forming mechanism

Abstract

The utility model discloses a copper sheet feeding and forming mechanism which comprises a sheet feeding assembly and a punching assembly, a punching air cylinder drives a punching needle to move up and down, a die plate is provided with a die through hole matched with the lower end of the punching needle, the sheet feeding assembly is provided with a sheet carrying plate and a sheet feeding air cylinder, the sheet carrying plate is located on the lower side of the die plate, and the sheet carrying plate is arranged in a front-back sliding mode. The sheet feeding device is characterized in that the punching needles are arranged at equal intervals in the direction perpendicular to the moving direction of the sheet carrying plate, front pits and rear pits which are used for receiving the copper sheets falling from the die through holes are formed in the sheet carrying plate, the front pits and the rear pits are arranged at equal intervals in the direction perpendicular to the moving direction of the sheet carrying plate, and the front pits and the rear pits are arranged at equal intervals in the direction perpendicular to the moving direction of the sheet carrying plate. The sheet feeding assembly is provided with a blocking air cylinder used for positioning the front pit and the rear pit to the positions aligned with the die through holes respectively, and a piston rod of the blocking air cylinder is arranged in the moving direction of the sheet carrying plate. The copper sheet feeding and forming mechanism provided by the utility model is beneficial to improving the production efficiency of fuses.

Description

Technical Field

[0001] The utility model relates to the field of rotary automatic assembly equipment, and particularly relates to a copper sheet feeding and forming mechanism. Background Art

[0002] At present, rotary automatic assembly equipment has been widely used in the assembly of electronic components. There is a type of fuse that needs to be assembled by rotary automatic assembly equipment. This fuse is also called a thermal fuse. For example, reference can be made to the "thermosensitive particle type thermal fuse" with the Chinese utility model patent publication number CN111105964B and the "wafer for thermal fuse and its thermal fuse" with the Chinese utility model patent publication number CN203521349U. As Figure 12 shown, the fuse includes a fuse housing 96. There are two copper sheets 991 arranged inside the fuse housing 96. The upper and lower copper sheets 991 are separated by a spring. When assembling the fuse, first insert the fuse housing 96 into the fixture 981 on the station turntable 98 of the rotary automatic assembly equipment, and then sequentially load the parts of the fuse into the fuse housing 96 at the subsequent stations of the station turntable 98. During this period, Figure 12 the shown reduced shoulder 961 is formed in the final assembly process. At present, the copper sheet 991 is punched and formed on the copper strip 99. Specifically, after the copper sheet 991 is punched out, the copper sheet 991 is pushed out towards the center of the station turntable 98 by a cylinder. The loading manipulator 97 of the rotary automatic assembly equipment then uses a vacuum suction nozzle to transfer the copper sheet 991 into the fuse housing 96 located on the fixture 981. As mentioned above, since the number of required copper sheets 991 is two, a recess for temporarily storing the copper sheet 991 is reserved on the fixture 981. In the subsequent process, the spring is placed into the fuse housing 96, and then the above-mentioned temporarily stored (i.e., the second) copper sheet 991 is placed into the fuse housing 96. Therefore, the cylinder used to push the punched and formed copper sheet 991 to a position close to the station turntable 98 needs to move back and forth significantly twice, and the loading manipulator 97 also needs to pick up the copper sheet 99 twice and place it on the fixture 981. Since the moving speeds of the above-mentioned cylinder and the loading manipulator 97 are limited, the above operation process is time-consuming, resulting in an impact on the overall production efficiency of the rotary automatic assembly equipment. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a copper sheet feeding and forming mechanism, which is beneficial to improving the production efficiency of fuses.

[0004] The purpose of the utility model is achieved by the following technical solutions.

[0005] The copper sheet feeding and forming mechanism disclosed by the utility model includes a sheet feeding component and a punching component. The punching component is provided with a punching needle, a punching cylinder and a die plate. The punching cylinder drives the punching needle to move up and down. A through die hole adapted to the lower end of the punching needle is formed on the die plate. The sheet feeding component is provided with a carrier plate and a sheet feeding cylinder. The carrier plate is located below the die plate. The carrier plate is slidably arranged back and forth. The sheet feeding cylinder is drivingly connected to the carrier plate. Wherein, the punching needles are arranged at equal intervals in the moving direction perpendicular to the carrier plate. Front concave pits and rear concave pits for receiving the copper sheets falling from the through die hole are formed on the carrier plate. The front concave pits and the rear concave pits are respectively arranged at equal intervals in the moving direction perpendicular to the carrier plate. The sheet feeding component is provided with a blocking cylinder for respectively positioning the front concave pits and the rear concave pits in alignment with the positions of the through die holes. The piston rod of the blocking cylinder is arranged along the moving direction of the carrier plate.

[0006] Preferably, the piston rod of the sheet feeding cylinder is installed and connected to the rear end of the carrier plate. The blocking cylinder is arranged corresponding to the rear of the carrier plate. A block for contacting the rear end face of the carrier plate is installed on the piston rod of the blocking cylinder.

[0007] Preferably, both the front concave pits and the rear concave pits are arranged in a shape with a larger upper part and a smaller lower part.

[0008] Preferably, the copper sheet feeding and forming mechanism of the utility model further includes a copper strip conveying component. The copper strip conveying component includes a pressing wheel component for clamping the copper strip. The pressing wheel component includes a driving wheel and a pressing wheel. The pressing wheel is parallel to the driving wheel. The pressing wheel component includes a pressing wheel cylinder. The pressing wheel cylinder drives the pressing wheel to move up and down. The driving wheel is rotatably arranged on a fixed shaft. The driving wheel is arranged corresponding to the die plate. The copper strip conveying component includes a segmented feeding mechanism. The segmented feeding mechanism is provided with a feeding cylinder, a driving connecting arm and a one-way bearing. The piston rod of the feeding cylinder is hinged to one end of the driving connecting arm. The other corresponding end of the driving connecting arm is connected to the driving wheel through the one-way bearing.

[0009] Preferably, a copper strip guiding groove adapted to the copper strip to sink into is formed on the die plate. A guiding plate is attached to the die plate. The punching needle is slidably connected to the guiding plate. A punching die hole is formed on the die plate. The upper end of the punching die hole is communicated with the copper strip guiding groove. The punching component further includes a punching block for cutting off the copper strip side material. The punching block can be inserted into the punching die hole. The punching cylinder drives the punching block to move up and down.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: by arranging the punching pins in an equally spaced manner in the moving direction perpendicular to the carrier plate, front concave pits and rear concave pits are formed on the carrier plate, both of which are used to catch the copper sheets falling from the through-mold holes. The front concave pits and the rear concave pits are respectively arranged in an equally spaced manner in the moving direction perpendicular to the carrier plate. The sheet feeding assembly is provided with a blocking cylinder for positioning the front concave pits and the rear concave pits respectively at positions aligned with the through-mold holes. The piston rod of the blocking cylinder is arranged along the moving direction of the carrier plate, reducing the total time for the carrier plate to move back and forth, thereby being beneficial to improving the production efficiency of the fuse. Description of the Drawings

[0011] Figure 1 It is a front top perspective structural schematic diagram of the copper sheet feeding and forming mechanism of the present utility model.

[0012] Figure 2 It is a rear bottom perspective structural schematic diagram of the copper sheet feeding and forming mechanism of the present utility model.

[0013] Figure 3 It is a sectional structural schematic diagram of the copper sheet feeding and forming mechanism of the present utility model.

[0014] Figure 4 It is Figure 3 a partial structural schematic diagram at A of

[0015] Figure 5 It is a sectional structural schematic diagram of the copper sheet feeding and forming mechanism of the present utility model in the top view direction.

[0016] Figure 6 It is a three-dimensional structural schematic diagram of the copper strip conveying assembly of the present utility model.

[0017] Figure 7 It is a three-dimensional structural schematic diagram of the mold plate of the present utility model.

[0018] Figure 8 It is a three-dimensional structural schematic diagram of the carrier plate of the present utility model.

[0019] Figure 9 It is an exploded schematic diagram of the combination of the punching pin mounting seat, the punching pins and the blanking block of the present utility model.

[0020] Figure 10 It is a partial structural schematic diagram of a rotary automatic assembly device provided with the copper sheet feeding and forming mechanism of the present utility model.

[0021] Figure 11 It is Figure 10 a partial structural schematic diagram at B of

[0022] Figure 12 It is a sectional structural schematic diagram of the fuse.

[0023] Label description: sheet feeding assembly 1; carrier plate 11; linear guide pair 110; front pit 1101; rear pit 1102; sheet feeding cylinder 12; blocking cylinder 13; stopper 131; support plate 14; punching and cutting assembly 2; punching pin 21; punching and cutting cylinder 22; punching pin mounting seat 23; fastening seat 24; die plate 25; through die hole 2501; copper strip guide groove 2502; blanking die hole 2503; guide plate 26; blanking block 27; copper strip conveying assembly 3; sheet feeding channel 301; guide wheel 302; mounting seat 30; pressure wheel assembly 31; driving wheel 311; pressure wheel 312; pressure wheel cylinder 313; segmented feeding mechanism 32; feeding cylinder 321; driving connecting arm 322; one-way bearing 323; frame 4; waste receiving box 5; copper strip 99; copper sheet 991; station turntable 98; fixture 981; loading manipulator 97; suction nozzle 971; fuse housing 96; reduced shoulder 961. Detailed implementation mode

[0024] The present utility model will be further described below in conjunction with the accompanying drawings.

[0025] The copper sheet feeding and forming mechanism of the present utility model, as Figures 1 to 3 shown, includes a sheet feeding assembly 1 and a punching and cutting assembly 2. The punching and cutting assembly 2 is provided with a punching pin 21, a punching and cutting cylinder 22 and a die plate 25. The punching and cutting cylinder 22 drives the punching pin 21 to move up and down. As Figure 7 shown, a through die hole 2501 adapted to the lower end of the punching pin 21 is formed on the die plate 25. That is to say, the through die hole 2501 penetrates the die plate 25 up and down. As Figures 1 to 3 shown, the sheet feeding assembly 1 is provided with a carrier plate 11 and a sheet feeding cylinder 12. The carrier plate 11 is located below the die plate 25. Specifically, the upper surface of the carrier plate 11 abuts against the lower surface of the die plate 25. The carrier plate 11 is slidably arranged back and forth. Specifically, the copper sheet feeding and forming mechanism of the present utility model is further provided with a frame 4. The sheet feeding assembly 1 includes a support plate 14. The support plate 14 is installed on one side inside the frame 4. The carrier plate 11 is slidably arranged on the support plate 14 through a linear guide pair 110. In other words, the guide rail of the linear guide pair 110 extends in the front-back direction. The sheet feeding cylinder 12 is drivingly connected to the carrier plate 11. That is to say, the sheet feeding cylinder 12 drives the carrier plate 11 to slide back and forth. As Figure 3 Combined with Figure 9 shown, the punching pins 21 are arranged at equal intervals in a direction perpendicular to the moving direction of the carrier plate 11. More specifically, the punching pins 21 are arranged in a direction parallel to the rotation tangent of the station turntable 98. The punching pins 21 are erected. For example, the number of punching pins 21 is set to four. As Figure 8As shown in the figure, front pits 1101 and rear pits 1102 are formed on the carrier plate 11, both of which are used to catch the copper sheets 991 falling from the through-molding holes 2501. The front pits 1101 and the rear pits 1102 are arranged at equal intervals perpendicular to the moving direction of the carrier plate 11. That is to say, there are two rows of pit structures on the carrier plate 11 for catching the copper sheets 991 falling from the through-molding holes 2501, namely, front and rear rows. As Figures 1 to 3 shown, the sheet feeding assembly 1 is provided with a blocking cylinder 13 for positioning the front pits 1101 and the rear pits 1102 respectively in alignment with the through-molding holes 2501. The piston rod of the blocking cylinder 13 is arranged along the moving direction of the carrier plate 11. That is to say, in Figure 1 the visual direction of, the piston rod of the blocking cylinder 13 extends in the front-rear direction. Thus, the blocking cylinder 13 can block the carrier plate 11 in the moving direction of the carrier plate 11.

[0026] The working principle of the copper sheet feeding and forming mechanism of the present invention will be briefly described below: As Figure 10 and Figure 11 shown, the rotary automatic assembly equipment includes a station turntable 98 and a fixed plate. The station turntable 98 is arranged below the fixed plate, but the outer diameter of the station turntable 98 is larger than that of the fixed plate. The jigs 981 are circumferentially and evenly distributed on the outer periphery of the station turntable 98, so that the jigs 981 are all located outside the fixed plate. The rotary automatic assembly equipment includes a loading manipulator 97, and the loading manipulator 97 is arranged on the above-mentioned fixed plate. The station turntable 98 is installed on a cam divider, so that the station turntable 98 can rotate by indexing. The copper sheet feeding and forming mechanism of the present invention is arranged at the corresponding position outside the station turntable 98. As Figures 1 to 3 and Figure 5As shown, the film feeding cylinder 12 applies a pulling force to the film carrier plate 11 backward (i.e., in the direction away from the rotation axis of the work station turntable 98). At the same time, the piston rod of the blocking cylinder 13 extends to the limit position. The blocking cylinder 13 can be a cylinder with adjustable stroke. The thrust of the blocking cylinder 13 on the film carrier plate 11 is set to be greater than the pulling force of the film feeding cylinder 12 on the film carrier plate 11. Thus, the film carrier plate 11 can stay at a relatively forward material receiving position, that is, the front concave pit 1101 is coaxially aligned with the through die hole 2501; the copper strip 99 is conveyed below the punching needle 21, and the die plate 25 pads the copper strip 99. The punching cylinder 22 drives the punching needle 21 to move downward. During the process that the lower end of the punching needle 21 is adaptively inserted into the through die hole 2501 of the die plate 25, the lower end edge of the punching needle 21 combines with the upper end edge of the through die hole 2501 to cut through the copper strip 99 to form the copper sheet 991, and the lower end surface of the punching needle 21 pushes the copper sheet 991 downward. The inner diameter of the lower part of the through die hole 2501 is set to be larger, so that the punched copper sheet 991 can fall downward into the corresponding front concave pit 1101 by gravity. The front concave pit 1101 is a row of pit structures relatively close to the work station turntable 98; then the piston rod of the blocking cylinder 13 retracts to the limit position, so that the film feeding cylinder 12 can pull the film carrier plate 11 backward. Since the blocking cylinder 13 blocks the film carrier plate 11 (specifically, the cylinder body of the blocking cylinder 13 can block the film carrier plate 11 or the piston rod of the blocking cylinder 13 can block the film carrier plate 11, and the film carrier plate 11 and the blocking cylinder 13 can be in indirect contact), the film carrier plate 11 stays at a relatively backward material receiving position, that is, the rear concave pit 1102 is coaxially aligned with the through die hole 2501. The front concave pit 1101 and the rear concave pit 1102 are arranged close to each other to minimize the amplitude of the movement of the film carrier plate 11 required to coaxially align the rear concave pit 1102 with the through die hole 2501. Then, the punching cylinder 22 drives the punching needle 21 to move downward again to punch out the second row of copper sheets 991, and the second row of copper sheets 991 respectively fall into the corresponding rear concave pits 1102. The punching cylinder 22 drives the punching needle 21 to move upward and reset again. Then, the film feeding cylinder 12 pushes the film carrier plate 11 forward, causing the film carrier plate 11 to move forward significantly, such as Figure 11As shown in the figure, the carrier plate 11 extends out of the frame 4. There are two rows of suction nozzles 971 installed on the loading manipulator 97, and the number of suction nozzles 971 in each row is four. Then, the loading manipulator 97 moves each suction nozzle 971 to be respectively aligned above the front concave pit 1101 and the rear concave pit 1102. The suction nozzle 971 moves downward to adsorb the corresponding copper sheet 991. After that, the loading manipulator 97 transfers the copper sheet 991 above the fixture 981. The suction nozzle 971 moves downward, so that a row of suction nozzles 971 relatively close to the rotation axis of the station turntable 98 are respectively inserted into the corresponding fuse housings 96, while a row of suction nozzles 971 relatively far from the rotation axis of the station turntable 98 put the corresponding copper sheets 991 down into the recesses on the fixture 981 for temporarily storing the copper sheets 991. After the suction nozzle 971 moves upward and leaves the fuse housing 96, the station turntable 98 indexes and rotates to transfer the next fixture 981 to the station corresponding to the sheet feeding assembly 1. During this period, after the suction nozzle 971 leaves the carrier plate 11, the sheet feeding cylinder 12 drives the carrier plate 11 to move backward, and the piston rod of the blocking cylinder 13 also extends to the limit position (reset), so that the front concave pit 1101 resumes alignment with the through die hole 2501; and so on in a cycle. As can be seen from the above, the copper sheet feeding and forming mechanism of the present utility model first forms two rows of copper sheets 991 on the carrier plate 11 by slightly moving the carrier plate 11 through the sheet feeding assembly 1 in combination with the punching and cutting assembly 2, and then greatly moves the carrier plate 11 through the sheet feeding assembly 1 to forwardly deliver the copper sheets 991 to the loading manipulator 97. Thus, the total time for the carrier plate 11 to move back and forth is reduced, which is beneficial to improving the production efficiency of the fuse; and it is also beneficial to enable the loading manipulator 97 to simply set two rows of suction nozzles 971 to simultaneously suck away the two rows of copper sheets 991 on the carrier plate 11. Thus, the operation of the loading manipulator 97 is simplified, and the loading operation time of the loading manipulator 97 is also shortened.

[0027] Further, as Figure 2 and Figure 3 shown, the piston rod of the sheet feeding cylinder 12 is installed and connected to the rear end portion of the carrier plate 11. Thus, the front concave pit 1101 and the rear concave pit 1102 are arranged at the front portion of the carrier plate 11, the blocking cylinder 13 is arranged at the corresponding rear of the carrier plate 11, a block 131 for contacting the rear end face of the carrier plate 11 is screwed and installed on the piston rod of the blocking cylinder 13, a cylinder support plate is installed at the rear end of the support plate 14, the cylinder body of the sheet feeding cylinder 12 and the cylinder body of the blocking cylinder 13 are both installed on the above-mentioned cylinder support plate, the piston rod of the sheet feeding cylinder 12 and the piston rod of the blocking cylinder 13 respectively pass through the above-mentioned cylinder support plate. The above layout is reasonable, and by setting the block 131 to block and contact the carrier plate 11 instead of directly contacting the carrier plate 11 with the piston rod of the blocking cylinder 13, when the front end of the block 131 is worn due to being impacted by the carrier plate 11, it is relatively convenient and cost-saving to replace the block 131.

[0028] Further, asFigure 4 As shown, the front pit 1101 and the rear pit 1102 are both arranged in a shape with a larger upper part and a smaller lower part, that is to say, the front pit 1101 and the rear pit 1102 are both arranged in a bowl shape, so that the inner walls of the front pit 1101 and the rear pit 1102 can respectively guide the copper sheet 991 to slide to the bottom of the front pit 1101 and the bottom of the rear pit 1102. The copper sheet 991 is a circular copper sheet. Therefore, the punch pin 21 is a cylindrical punch pin, and the front pit 1101 and the rear pit 1102 are circular in a top view.

[0029] Furthermore, as Figures 1 to 3 shown, the copper sheet feeding and forming mechanism of the present utility model further includes a copper strip conveying assembly 3. The copper strip conveying assembly 3 includes a pressing wheel assembly 31 for clamping the copper strip 99. As Figure 6 shown, the pressing wheel assembly 31 includes a driving wheel 311 and a pressing wheel 312. The pressing wheel 312 is located above the driving wheel 311, and the pressing wheel 312 is parallel to the driving wheel 311. The pressing wheel assembly 31 includes a pressing wheel cylinder 313, and the pressing wheel cylinder 313 drives the pressing wheel 312 to move up and down. Specifically, the pressing wheel assembly 31 is provided with a mounting seat 30. As Figure 1 and Figure 2 shown, the mounting seat 30 is installed outside one side of the frame 4. A sliding fork seat is slidably connected to the mounting seat 30. The pressing wheel 312 is rotatably arranged on the sliding fork seat. The pressing wheel cylinder 313 is installed on the top of the mounting seat 30, and the piston rod of the pressing wheel cylinder 313 is installed and connected to the top of the above-mentioned sliding fork seat. The driving wheel 311 is rotatably arranged on a fixed axis, and the driving wheel 311 is rotatably connected to the lower part of the mounting seat 30, and the driving wheel 311 is correspondingly arranged with the die plate 25. As Figure 1 shown, the copper strip conveying assembly 3 includes a segmented feeding mechanism 32. The segmented feeding mechanism 32 is provided with a feeding cylinder 321, a driving connecting arm 322 and a one-way bearing 323. The piston rod of the feeding cylinder 321 is hinged to one end of the driving connecting arm 322, and the tail end of the cylinder body of the feeding cylinder 321 is hinged to the bottom plate of the frame 4. The corresponding other end of the driving connecting arm 322 is connected to the driving wheel 311 through the one-way bearing 323. Specifically, as Figure 6 shown, the one-way bearing 323 is sleeved on the shaft head at one end of the driving wheel 311 and connected by a corresponding flat key. As Figure 1 shown, the driving connecting arm 322 is formed with a clamping hole, and the outer ring of the one-way bearing 323 is arranged in the above-mentioned clamping hole. One side of the above-mentioned clamping hole is formed with a notch, and both sides of the above-mentioned notch are connected by screws, so that tightening the above-mentioned screws makes the above-mentioned clamping hole clamp the outer ring of the one-way bearing 323; through the above settings, the copper strip 99 can be a coil material. The copper strip 99 is led to the copper strip conveying assembly 3 by hand. As Figure 6As shown in the figure, the copper strip 99 passes through the strip feeding channel 301. There are two guide wheels 302 at the entrance of the strip feeding channel 301. The copper strip 99 is adapted to pass between the two guide wheels 302. Then the copper strip 99 passes between the driving wheel 311 and the pressing wheel 312, and the pressing wheel cylinder 313 pushes the pressing wheel 312 downward to clamp the copper strip 99 between the driving wheel 311 and the pressing wheel 312. As Figure 5 shown, the copper strip 99 then reaches the upper side of the die plate 25. As Figure 1 shown, the feeding cylinder 321 pushes the driving connecting arm 322 upward to swing the driving connecting arm 322. The driving connecting arm 322 makes the one-way bearing 323 rotate clockwise by a certain angle. The one-way bearing 323 drives the driving wheel 311 to rotate clockwise by the same angle. The driving wheel 311 drives the copper strip 99 to be conveyed a certain length below the punching pin 21. The feeding cylinder 321 pulls the driving connecting arm 322 downward. Due to the one-way connection characteristic of the one-way bearing 323, the driving wheel 311 is not driven by the feeding cylinder 321. So during the pause of the driving wheel 311, the sheet feeding assembly 1 and the punching assembly 2 cooperate to work. When the carrier plate 11 is reset completely, the feeding cylinder 321 pushes the driving connecting arm 322 upward again, and so on in a cycle. By setting the copper strip conveying assembly 3, the copper strip 99 can be intermittently conveyed to the punching assembly 2, avoiding the need to set a servo motor to drive the driving wheel 311 to operate, which is beneficial to cost reduction.

[0030] As Figure 5 shown, using a copper strip 99 with too small a width will result in too poor rigidity of the copper strip 99, causing the copper strip 99 to deform and jam during conveying due to the frictional resistance of the die plate 25. So it is necessary to select a copper strip 99 with a slightly wider width. If the copper strip 99 is conveyed in the front-back direction, it will be necessary to select a copper strip 99 with a particularly large width to enable the four punching pins 21 to punch the copper strip 99 simultaneously (the spacing of the punching pins 21 is set to be constant). If the copper strip 99 is conveyed in the direction parallel to the arrangement direction of the punching pins 21, then the driving wheel 311 needs to convey the copper strip 99 a relatively large length each time, and it will also result in an increase in the proportion of the unpunched part of the copper strip 99, causing waste. But if the driving wheel 311 conveys the copper strip 99 a relatively small length each time, the punching pin 21 at the rear in the conveying direction will punch the hole (formed on the copper strip 99) formed by the punching pin 21 at the front in the conveying direction. Thus, as Figure 5As shown, in order to make full use of the material of the copper strip 99, the above-mentioned holes should be distributed densely. Moreover, the width of the copper strip 99 needs to be significantly greater than four times the diameter of the holes, and an angle should be formed between the conveying direction of the copper strip 99 and the arrangement direction of the punching pins 21 to prevent the punching pin 21 at the rear in the conveying direction from punching the holes formed by the punching pin 21 at the front in the conveying direction. Moreover, on the basis of preventing the punching pin 21 at the rear in the conveying direction from punching the holes formed by the punching pin 21 at the front in the conveying direction, the above-mentioned angle should be set as small as possible to avoid the need to use an overly wide copper strip 99 and make the above-mentioned holes relatively dense, that is, make full use of the copper strip 99.

[0031] Furthermore, as Figure 7 shown, a copper strip guiding groove 2502 adapted for the copper strip 99 to sink into is formed on the die plate 25. That is to say, the width of the copper strip guiding groove 2502 is slightly greater than the width of the copper strip 99, and the bottom of the copper strip guiding groove 2502 should be set at the same height as the top of the driving wheel 311, so that the copper strip 99 can be horizontally transitioned to the copper strip guiding groove 2502, as Figure 3 and Figure 4 shown, a guiding plate 26 is attached to the die plate 25. That is to say, the guiding plate 26 covers the copper strip guiding groove 2502 to prevent the copper strip 99 from arching. The punching pin 21 is slidably connected to the guiding plate 26, as Figure 7 shown, a punching die hole 2503 is formed on the die plate 25, and the upper end of the punching die hole 2503 is communicated with the copper strip guiding groove 2502, as Figure 1 、 Figure 5 and Figure 9 shown, the punching assembly 2 further includes a punching block 27 for cutting the side material of the copper strip 99. The punching block 27 can be inserted into the punching die hole 2503. The punching block 27 is slidably connected to the guiding plate 26. The punching cylinder 22 drives the punching block 27 to move up and down. Specifically, the punching assembly 2 is provided with a punching pin mounting seat 23, as Figure 9 shown, the punching pin mounting seat 23 is divided into an upper plate and a lower plate. The punching block 27 and the punching pins 21 pass through the lower plate of the punching pin mounting seat 23, and the upper ends of the punching block 27 and the punching pins 21 are hung on the upper part of the lower plate of the punching pin mounting seat 23. The upper plate of the punching pin mounting seat 23 is attached to cover the upper end faces of the punching block 27 and the punching pins 21. The upper plate and the lower plate of the punching pin mounting seat 23 are connected by corresponding screws to relatively position the punching pin mounting seat 23 with the punching block 27 and the punching pins 21, as Figure 1 and Figure 3 shown, a buckling seat 24 is installed at the top of the punching pin mounting seat 23. The lower end of the piston rod of the punching cylinder 22 is buckled to the buckling seat 24, so that the piston rod of the punching cylinder 22 can drive the punching pin mounting seat 23 to move up and down. As Figure 5As shown, every time the punching pin 21 punches out the copper sheet 991, the blanking block 27 also simultaneously cuts off the copper strip 99 side material (the copper strip 99 side material is the area where the copper sheet 991 has been punched out). The scraps formed by the copper strip 99 cut off by the blanking block 27 fall into the waste receiving box 5 through the blanking die hole 2503. The waste receiving box 5 is arranged inside the lower part of the frame 4.

Claims

1. A copper sheet feeding and forming mechanism, comprising a sheet feeding component (1) and a punching component (2), wherein the punching component (2) is provided with a punching needle (21), a punching cylinder (22) and a mold plate (25), wherein the punching cylinder (22) drives the punching needle (21) to move up and down, and the mold plate (25) is formed with a through-mold hole (2501) adapted to the lower end of the punching needle (21), wherein the sheet feeding component (1) is provided with a sheet carrier plate (11) and a sheet feeding cylinder (12), wherein the sheet carrier plate (11) is located at the lower side of the mold plate (25), wherein the sheet carrier plate (11) is arranged to slide forward and backward, and wherein the sheet feeding cylinder (12) is driven to connect to the sheet carrier plate (11), characterized in that: The punching needles (21) are arranged at equal intervals in a direction perpendicular to the movement of the carrier plate (11); a front pit (1101) and a rear pit (1102) are formed on the carrier plate (11) for catching the copper sheet (991) falling from the through-die hole (2501); the front pit (1101) and the rear pit (1102) are arranged at equal intervals in a direction perpendicular to the movement of the carrier plate (11); the sheet feeding assembly (1) is provided with a blocking cylinder (13) for positioning the front pit (1101) and the rear pit (1102) at positions aligned with the through-die hole (2501); and the piston rod of the blocking cylinder (13) is arranged along the movement direction of the carrier plate (11).

2. The copper sheet feeding and forming mechanism according to claim 1, characterized in that: The piston rod of the film feeding cylinder (12) is connected to the rear end of the film carrier plate (11), and the blocking cylinder (13) is arranged at the corresponding rear of the film carrier plate (11). The piston rod of the blocking cylinder (13) is provided with a stopper (131) for contacting the rear end surface of the film carrier plate (11).

3. The copper sheet feeding and forming mechanism according to claim 1, characterized in that: The front concave pit (1101) and the rear concave pit (1102) are both arranged in a shape of being larger at the top and smaller at the bottom.

4. The copper sheet feeding and forming mechanism according to claim 1, characterized in that: The copper belt conveying assembly (3) further comprises a copper belt conveying assembly (3), the copper belt conveying assembly (3) comprising a pressure wheel assembly (31) for clamping the copper belt (99), the pressure wheel assembly (31) comprising a driving wheel (311) and a pressure wheel (312), the pressure wheel (312) being parallel to the driving wheel (311), the pressure wheel assembly (31) comprising a pressure wheel cylinder (313), the pressure wheel cylinder (313) driving the pressure wheel (312) to move up and down, the driving wheel (311) being arranged to rotate on a fixed axis, the driving wheel (311) The wheel (311) is arranged corresponding to the mold plate (25), and the copper belt conveying assembly (3) includes a segmented feeding mechanism (32), the segmented feeding mechanism (32) is provided with a feeding cylinder (321), a driving connecting arm (322) and a one-way bearing (323), the piston rod of the feeding cylinder (321) is hinged to one end of the driving connecting arm (322), and the other end of the driving connecting arm (322) is connected to the driving wheel (311) via the one-way bearing (323).

5. The copper sheet feeding and forming mechanism according to claim 4, characterized in that: The mold plate (25) is formed with a copper strip guide groove (2502) adapted to fit the copper strip (99) into, the mold plate (25) is provided with a guide plate (26) in close contact therewith, the punching needle (21) is slidably connected to the guide plate (26), the mold plate (25) is formed with a punching die hole (2503), the upper end of the punching die hole (2503) is connected to the copper strip guide groove (2502), the punching assembly (2) further comprises a punching block (27) for cutting off the edge material of the copper strip (99), the punching block (27) can be inserted into the punching die hole (2503), and the punching cylinder (22) drives the punching block (27) to move up and down.

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