Continuous stamping die for micro connector material strap and in-die assembling method

Abstract

The invention relates to the technical field of connector material strap stamping, in particular to a continuous stamping die for a micro connector material strap and an in-die assembling method. The invention aims to solve the technical problems that when a continuous stamping die in the prior art is used for stamping a connector material belt, the connector material belt easily jumps, and a clamping mechanism easily causes deformation of the connector material belt. Comprising a lower die and a clamping mechanism, and an upper die is arranged on the upper side of the lower die. Through the design of the clamping mechanism, when the upper die descends, a limiting plate can be extruded through a pressing rod, air in an inner cavity of an elastic telescopic rod enters an inner cavity of a telescopic shaft, and therefore the edge of a connector material belt is clamped through a clamping rod; the bending position of the connector material belt after stamping is not affected, through the design of the pushing assembly, when the upper die is lifted, the clamping rod can drive the connector material belt to move forwards, and automatic forward movement of the connector material belt is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of connector material strip stamping, and in particular to a continuous stamping die and an in-mold assembly method for a micro connector material strip. Background Art

[0002] With the rapid development of new energy vehicles, smart homes, consumer electronics and other fields, the application of high-speed punching machines and progressive dies has also ushered in opportunities for vigorous development, not only achieving significant improvements in product performance, but also taking solid steps in technological innovation.

[0003] The main methods of stripping connector materials include single-sided stripping, double-sided stripping and double-stripping. Combining a high-speed punch press with a progressive die can efficiently punch the connector material strip. Since the high-speed punch press moves at a fast speed, when the upper die is lifted upward, the connector material strip will jump, resulting in reduced stamping accuracy. Most of the prior art uses a clamping mechanism to clamp the stamped connector material strip to prevent the connector material strip from jumping, and the connector material strip will be completely covered during clamping. This method is only applicable to connector material strips with a flat shape after stamping. When the connector material strip is bent, the clamping mechanism clamping the connector material strip will cause the connector material strip to deform. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that the connector strip is prone to jumping and the clamping mechanism is prone to deformation when the continuous stamping die is used to stamp the connector strip, the present invention provides a continuous stamping die and an in-mold assembly method for a micro connector strip.

[0005] The technical solution of the present invention is: a continuous stamping mold for a micro connector strip, comprising a lower mold, an upper mold is arranged on the upper side of the lower mold, and also comprises a clamping mechanism, the clamping mechanism comprises a lifting rod, the lifting rod is symmetrically arranged on the upper side of the lower mold, the top of the lower mold is symmetrically fixed with an extension rod, the telescopic end of the extension rod is fixed with the lifting rod, the top of the lower mold is symmetrically slidably connected with a sliding plate, the sliding plate and the lower mold are provided with a first tension spring, one side of the sliding plate is fixed with an elastic telescopic rod and symmetrically fixed with a telescopic shaft, one side of the lifting rod is fixed with a pressure rod, the telescopic end of the elastic telescopic rod is fixed with a limiting plate used in conjunction with the pressure rod, the fixed end of the elastic telescopic rod is connected to the fixed end of the telescopic shaft through a hose, a sliding groove is through-opened on one side of the sliding plate, the telescopic end of the telescopic shaft is fixed with a clamping rod, the clamping rod is stuck in the sliding groove of the sliding plate and slides therein, and a propulsion component is arranged on the lower mold.

[0006] As a preferred technical solution of the present invention, the propulsion assembly includes a sliding rod, the other side of the lifting rod is slidably connected with the sliding rod, a second tension spring is arranged between the sliding rod and the lifting rod, a triangular groove is opened on one side of the sliding plate, and a special-shaped plate used in conjunction with the sliding rod is fixed in the triangular groove.

[0007] As a preferred technical solution of the present invention, it also includes a limiting mechanism, which includes a first elastic wedge block, one side of the sliding plate is slidably connected to the first elastic wedge block, and the first elastic wedge block is used in conjunction with the limiting plate.

[0008] As a preferred technical solution of the present invention, the limiting mechanism also includes a vertical rod, the top of the first elastic wedge block is fixedly connected to the vertical rod, the top of the lower mold is symmetrically fixedly connected to an unlocking rod, and the vertical rod is used in conjunction with the unlocking rod.

[0009] As a preferred technical solution of the present invention, it also includes a connection mechanism, which includes a connection block. The connection blocks are symmetrically fixed on both sides of the upper mold, and one side of the connection block is provided with a special-shaped groove, in which a second elastic wedge block and a limit pin are slidably connected. The limit pin is slidably connected to the lifting rod, and the outer wall of the limit pin is provided with a wedge-shaped groove used in conjunction with the second elastic wedge block.

[0010] As a preferred technical solution of the present invention, it also includes a straightening mechanism, which includes a guide rail, the top of the lower mold is fixedly connected to the guide rail, a first sliding frame and a second sliding frame are slidably connected in the guide rail, the first sliding frame and the second sliding frame are both rotatably connected with a rotating shaft, a clamping roller is rotatably sleeved on the rotating shaft, a transmission assembly is connected to the lower mold, and the transmission assembly is connected to the upper mold, the first sliding frame and the second sliding frame.

[0011] As a preferred technical solution of the present invention, the straightening mechanism also includes a friction wheel, the outer wall fixed sleeve of the rotating shaft is provided with the friction wheel, a torsion spring is arranged between the friction wheel and the clamping roller, and the top of the lower mold is fixedly connected to a friction strip used in conjunction with the friction wheel.

[0012] As a preferred technical solution of the present invention, it further includes a first friction disc. The outer walls of the two rotating shafts are both movably sleeved with the first friction disc. A third tension spring is arranged between the two first friction discs and the first sliding frame and the second sliding frame respectively. One end of the clamping roller is fixedly connected with a second friction disc that cooperates with the first friction disc. A push rod is slidably connected to the top of the lower die. The push rod cooperates with the first friction disc. A special-shaped block is fixedly connected to one side of the push rod. Extrusion blocks that cooperate with the special-shaped block are fixedly connected to one side of the first sliding frame and the second sliding frame respectively.

[0013] As a preferred technical solution of the present invention, it further includes an air pump. The air pumps are symmetrically and fixedly connected to the top of the lower die. The piston end of the air pump is fixedly connected to the upper die. Spray pipes are symmetrically and fixedly connected in the lower die. An air delivery pipe is communicated between the air pump and the spray pipe.

[0014] As a preferred technical solution of the present invention, an in-mold assembly method for a continuous stamping die for a micro-connector strip includes the following steps: S1: First, judge whether the overall die needs to be adjusted according to the strip feeding method of the connector strip. When the connector strip is a double-sided strip feeding type or a double-strip type, use a hydraulic device in the prior art to lower the upper die, and squeeze the limit plate through the pressure rod, so that the clamping rod clamps the connector strip. S2: Make the two clamping rollers straighten and flatten the connector strip by the friction between the friction wheel and the friction strip. After the upper die descends, it is combined with the lower die to complete the assembly and complete the stamping of the connector strip. S3: When the upper die lifts, the piston end of the air pump driven by the upper die contracts, thereby generating negative pressure at the contact position between the lower die and the connector strip, so that when the upper die lifts upward, the influence on the connector strip is further reduced, preventing the connector strip from jumping. Beneficial effects

[0015] 1. Through the design of the clamping mechanism of the present invention, when the upper die descends, the limit plate can be squeezed through the pressure rod, so that the air in the inner cavity of the elastic telescopic rod enters the inner cavity of the telescopic shaft, so that the clamping rod clamps the edge of the connector strip. By clamping the edge of the connector strip, it will not affect the bent part of the connector strip after stamping. Through the design of the propulsion component, when the upper die lifts, the clamping rod can drive the connector strip to move forward, realizing the automatic forward movement of the connector strip.

[0016] 2. Through the design of the limit mechanism, when the upper die is lifted, the limit plate is limited by the first elastic wedge block, enabling the clamping rod to hold the connector tape. Through the design of the friction wheel and the friction strip, when the upper die descends, the two clamping rollers can straighten and flatten the connector tape, improving the stamping accuracy of the connector tape.

[0017] 3. Through the design of the air pump, when the upper die is lifted upward, by contracting the piston end of the air pump, air can be ejected from the nozzle, creating a negative pressure at the contact position between the connector tape and the lower die to prevent the connector tape from jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a schematic structural diagram of the clamping mechanism of the present invention; Figure 3 is an installation schematic diagram at the first elastic wedge block of the present invention; Figure 4 is an installation schematic diagram at the unlocking rod of the present invention; Figure 5 is a schematic structural diagram of the connection mechanism of the present invention; Figure 6 is a schematic structural diagram of the straightening mechanism of the present invention; Figure 7 is an installation schematic diagram at the second sliding frame of the present invention; Figure 8 is an installation schematic diagram at the first friction disc of the present invention; Figure 9 is an installation schematic diagram at the air pump of the present invention; Figure 10 is an installation schematic diagram at the nozzle of the present invention.

[0019] In the figure, the markings are: 1 - lower die, 101 - upper die, 201 - lifting rod, 2011 - extension rod, 202 - sliding plate, 203 - elastic telescopic rod, 204 - telescopic shaft, 205 - pressing rod, 206 - limit plate, 207 - clamping rod, 301 - sliding rod, 302 - special-shaped plate, 401 - first elastic wedge block, 501 - vertical rod, 502 - unlocking rod, 601 - connecting block, 602 - second elastic wedge block, 603 - limit pin, 701 - guide rail, 702 - first sliding frame, 703 - second sliding frame, 704 - rotating shaft, 705 - clamping roller, 801 - friction wheel, 802 - friction strip, 901 - first friction disc, 902 - second friction disc, 903 - push rod, 9031 - special-shaped block, 904 - extrusion block, 1001 - air pump, 1002 - nozzle. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present invention. Embodiment 1

[0021] A continuous stamping die for a micro-connector tape, as Figures 1-10 shown, includes a lower die 1. An upper die 101 is provided on the upper side of the lower die 1. It also includes a clamping mechanism. The clamping mechanism includes a lifting rod 201. The lifting rods 201 are symmetrically arranged on the left and right sides of the upper side of the lower die 1. Extension rods 2011 are fixedly connected symmetrically on the left and right of the top of the lower die 1. The telescopic ends of the extension rods 2011 are fixedly connected to the rear sides of the corresponding lifting rods 201. The top of the lower die 1 is symmetrically and horizontally slidably connected with sliding plates 202. A first tension spring is provided between the rear sides of the sliding plates 202 and the lower die 1. Elastic telescopic rods 203 are fixedly connected to the mutually remote sides of the two sliding plates 202, and telescopic shafts 204 are fixedly connected vertically and symmetrically. A pressing rod 205 is fixedly connected to the front side of the lifting rod 201. A limiting plate 206 for cooperating with the pressing rod 205 is fixedly connected to the telescopic end of the elastic telescopic rod 203. The fixed ends of the elastic telescopic rods 203 are communicated with the fixed ends of two adjacent telescopic shafts 204 through a hose. A chute is provided through the side of the sliding plate 202. A clamping rod 207 is fixedly connected to the telescopic end of the telescopic shaft 204. The clamping rod 207 is inserted into the chute of the sliding plate 202 and slides vertically therein. A propulsion assembly is provided on the lower die 1. The propulsion assembly is used to make the sliding plate 202 slide forward.

[0022] As Figure 3 shown, the propulsion assembly includes a sliding rod 301. The mutually remote sides of the two lifting rods 201 are both horizontally slidably connected through the sliding rod 301. A second tension spring is provided between the sliding rod 301 and the lifting rod 201. The second tension spring is sleeved on the outer wall of the sliding rod 301. Triangular grooves are provided on the mutually remote sides of the two sliding plates 202. An irregular-shaped plate 302 for cooperating with the sliding rod 301 is fixedly connected in the triangular grooves.

[0023] As Figure 3 shown in Figure 4 and

[0024] shown, it also includes a limiting mechanism. The limiting mechanism includes a first elastic wedge-shaped block 401. The mutually remote sides of the two sliding plates 202 are both horizontally slidably connected with the first elastic wedge-shaped block 401. The first elastic wedge-shaped block 401 cooperates with the limiting plate 206 and is used to limit the position of the limiting plate 206. Figure 4 As

[0025] like Figure 4 and Figure 5 As shown, it also includes a connection mechanism, which includes a connection block 601. The connection blocks 601 are symmetrically fixed on the left and right sides of the upper mold 101. The two connection blocks 601 are both provided with a through-shaped groove on one side away from each other. The special-shaped groove is L-shaped. A second elastic wedge block 602 is vertically slidably connected in the special-shaped groove, and a limit pin 603 is horizontally slidably connected. The limit pin 603 is slidably connected to the lifting rod 201, and the outer wall of the limit pin 603 is provided with a wedge groove used in conjunction with the second elastic wedge block 602.

[0026] Initially, the telescopic end of the elastic telescopic rod 203 is in a released state, and there is a large gap between two adjacent clamping rods 207. The second elastic wedge block 602 is inserted into the wedge-shaped groove of the adjacent limit pin 603. The overall mold is divided into two states according to the strip feeding methods of different connector tapes. The first state is for connector tapes with double-sided strip feeding and double-strip feeding. At this time, no adjustment is required for the overall mold. First, place the connector tape on the lower die 1 and make the connector tape located between two adjacent clamping rods 207. Then, control the hydraulic equipment in the prior art (the hydraulic equipment is prior art and not shown in the figure, so it will not be elaborated here) to drive the upper die 101 to descend. The upper die 101 drives the two second elastic wedge blocks 602 and the two limit pins 603 to descend through the two connecting blocks 601. The limit pin 603 drives the lifting rod 201 to descend. The lifting rod 201 drives the pressure rod 205 and the sliding rod 301 to descend, and drives the telescopic end of the extension rod 2011 to contract. One end of the sliding rod 301 slides downward in the triangular groove of the sliding plate 202. The inclined surface of the special-shaped plate 302 squeezes one end of the sliding rod 301, causing the sliding rod 301 to gradually slide away from the sliding plate 202. The second tension spring is stretched. Subsequently, the bottom end of the pressure rod 205 contacts and squeezes the top of the limit plate 206. The limit plate 206 is stressed to drive the telescopic end of the elastic telescopic rod 203 to contract. The air in the inner cavity of the elastic telescopic rod 203 is squeezed and enters the inner cavities of two adjacent telescopic shafts 204 through the hose, causing the telescopic ends of the telescopic shafts 204 to extend. The telescopic ends of the telescopic shafts 204 drive the clamping rods 207 to slide along the chute of the sliding plate 202. Two adjacent clamping rods 207 slide closer to each other. Subsequently, one end of the sliding rod 301 crosses the inclined surface of the special-shaped plate 302 and no longer contacts it. After the sliding rod 301 is released from the restriction, it can move. The second tension spring contracts to drive the sliding rod 301 to slide towards the sliding plate 202 and continue to descend. Subsequently, the limit plate 206 contacts and squeezes the inclined surface of the first elastic wedge block 401. The first elastic wedge block 401 is stressed to contract and slide, and drives the vertical rod 501 to move synchronously. After the limit plate 206 continues to descend, it crosses the inclined surface of the first elastic wedge block 401. The first elastic wedge block 401 is released to slide and reset. At this time, the bottom of the first elastic wedge block 401 contacts the top of the limit plate 206, thereby limiting the limit plate 206. At the same time, two adjacent clamping rods 207 contact and clamp the edge of the connector tape. The sliding rod 301 slides to the bottom of the triangular groove of the sliding plate 202, and the upper die 101 and the lower die 1 are combined to complete the assembly, realizing the stamping of the connector tape. Then, control the hydraulic equipment in the prior art to drive the upper die 101 to lift. The upper die 101 drives the two second elastic wedge blocks 602 and the two limit pins 603 to lift through the two connecting blocks 601. The limit pin 603 drives the lifting rod 201 to lift upward. The lifting rod 201 drives the telescopic end of the extension rod 2011 to extend and drives the sliding rod 301 to lift. At this time, the outer wall of the sliding rod 301 squeezes the rear inclined surface of the special-shaped plate 302.The deformed plate 302 drives the sliding plate 202 to slide forward horizontally under force, and the first tension spring extends under force. The sliding plate 202 drives the elastic telescopic rod 203, the telescopic shaft 204, the limiting plate 206 and the clamping rod 207 to move forward. The clamping rod 207 drives the connector tape to move forward by clamping the connector tape. At the same time, the sliding plate 202 drives the vertical rod 501 to move forward through the first elastic wedge block 401. After the vertical rod 501 moves, it contacts the corresponding unlocking rod 502. The unlocking rod 502 blocks the vertical rod 501 and stops the first elastic wedge block 401 from moving through the vertical rod 501. At this time, the sliding plate 202 continues to move forward, so that the limiting plate 206 moves forward relative to the first elastic wedge block 401 until the upper die 101 lifts and resets, and then the sliding rod 301 lifts and resets. At the same time, the limiting plate 206 no longer contacts the bottom surface of the first elastic wedge block 401. After the limiting plate 206 is released from the restriction, the telescopic end of the elastic telescopic rod 203 can move. The release of the telescopic end of the elastic telescopic rod 203 drives the limiting plate 206 to lift, and the air in the inner cavities of two adjacent telescopic shafts 204 is pumped back into the inner cavity of the elastic telescopic rod 203 through a hose. The contraction of the telescopic end of the telescopic shaft 204 drives the clamping rod 207 to move, and two adjacent clamping rods 207 move away from each other and no longer clamp the connector tape. At the same time, the bottom of the outer wall of the sliding rod 301 passes over the rear inclined surface of the deformed plate 302 and no longer contacts it. After the deformed plate 302 is released from the restriction, the sliding plate 202 can move. The contraction of the first tension spring drives the sliding plate 202 to slide back to its original position. The sliding plate 202 drives the elastic telescopic rod 203, the telescopic shaft 204, the limiting plate 206 and the clamping rod 207 to slide back to their original positions. Through the above steps, the clamping of the connector tape can be realized, and the connector tape can be moved forward after the stamping of the connector tape is completed.

[0027] The second state is the connector tape in the single-sided tape feeding mode. At this time, the limit pin 603 is adjusted according to the position of the single-sided tape. Taking the limit pin 603 on the left side as an example, when the position of the single-sided tape is on the right side of the connector tape, only the two clamping rods 207 on the right side can clamp the connector tape. If the two clamping rods 207 on the left side clamp the connector tape, it will cause the deformation of the connector tape after stamping. At this time, the second elastic wedge block 602 on the left side is lifted upward. The second elastic wedge block 602 is lifted along the special-shaped groove of the connection block 601. Subsequently, the second elastic wedge block 602 disengages from the wedge-shaped groove of the limit pin 603. After the limit pin 603 is released from the restriction, it can move. Then, the limit pin 603 is pulled to the left side, so that the limit pin 603 disengages from the special-shaped groove of the connection block 601. At this time, the telescopic end of the extension rod 2011 on the left side can support the lifting rod 201 on the left side and keep it in a vertical state. Then, the second elastic wedge block 602 is released, and the second elastic wedge block 602 contracts and descends to reset. Then, the above steps are repeated to make the upper die 101 descend. At this time, the connection block 601 on the right side drives the lifting rod 201 to descend through the limit pin 603. Furthermore, the two clamping rods 207 on the right side repeat the above steps and achieve the same effect. When the connection block 601 on the left side descends, it will not drive the limit pin 603 to descend, so that the two clamping rods 207 on the left side will not move. Thus, the clamping of the connector tape in the single-sided tape feeding mode can be realized. Embodiment 2

[0028] As Figures 6-8 shown, it further includes a straightening mechanism. The straightening mechanism includes a guide rail 701. The guide rail 701 is fixedly connected to the top of the lower die 1. A first sliding frame 702 and a second sliding frame 703 are vertically and slidably connected in the guide rail 701. A rotating shaft 704 is rotatably connected through the first sliding frame 702 and the second sliding frame 703. A clamping roller 705 is rotatably sleeved on the rotating shaft 704. The clamping roller 705 is made of an elastic material. A transmission component is connected to the lower die 1. The transmission component is composed of a first gear, a second gear, a first rack, a second rack and a third rack. Among them, the first gear and the second gear are both rotatably connected to the rear side of the lower die 1. The first gear and the second gear are coaxially arranged. The first rack is fixedly connected to the rear side of the upper die 101. The first gear meshes with the first rack. The second rack and the third rack are respectively fixedly connected to the left sides of the first sliding frame 702 and the second sliding frame 703 and mesh with the second gear.

[0029] As Figure 8 shown, the straightening mechanism further includes a friction wheel 801. Friction wheels 801 are fixedly sleeved on the outer walls of the two rotating shafts 704. A torsion spring is arranged between the friction wheel 801 and the adjacent clamping roller 705. A friction strip 802 cooperating with the friction wheel 801 is fixedly connected to the top of the lower die 1. There is a frictional force between the friction wheel 801 and the friction strip 802.

[0030] like Figure 7 and Figure 8 As shown, it also includes a first friction disk 901, the outer walls of the two rotating shafts 704 are movably sleeved with the first friction disk 901, and a third tension spring is arranged between the two first friction disks 901 and the first sliding frame 702 and the second sliding frame 703 respectively. The right end of the clamping roller 705 is fixedly connected to the second friction disk 902 used in conjunction with the first friction disk 901, and the top of the lower mold 1 is horizontally slidably connected to a push rod 903, and the push rod 903 is used in conjunction with the two first friction disks 901. The right side of the push rod 903 is fixedly connected to a special-shaped block 9031, and the right sides of the first sliding frame 702 and the second sliding frame 703 are fixedly connected to an extrusion block 904 used in conjunction with the special-shaped block 9031.

[0031] like Figure 9 and Figure 10 As shown, an air pump 1001 is also included. The air pump 1001 is symmetrically fixed to the top of the lower mold 1, the piston end of the air pump 1001 is fixed to the upper mold 101, and a nozzle 1002 is symmetrically fixed inside the lower mold 1. An air supply pipe is connected between the air pump 1001 and the nozzle 1002.

[0032] Initially, the third tension spring is in a released state, there is a gap between the first friction disc 901 and the second friction disc 902, and the torsion spring is in a released state. Before stamping the connector strip, the connector strip is first placed on the lower die 1 through the gap between the two clamping rollers 705. When the upper die 101 descends, the upper die 101 drives the first rack in the transmission assembly to descend. The first rack drives the second gear to rotate through the first gear, and the second gear drives the first sliding bracket 702 and the second sliding bracket 703 to slide closer to each other along the guide rail 701 through the second rack and the third rack. The first sliding bracket 702 and the second sliding bracket 703 drive the rotating shafts 704 and the extrusion blocks 904 thereon to move. The rotating shaft 704 drives the clamping roller 705, the friction wheel 801 and the first friction disc 901 thereon to move. The clamping roller 705 drives the second friction disc 902 thereon to move. During the movement, the two friction wheels 801 drive the rotating shaft 704 to rotate in opposite directions around the connection points of the first sliding bracket 702 and the second sliding bracket 703 through the friction with the friction strip 802, and drive the corresponding clamping rollers 705 to rotate through the torsion spring. The clamping roller 705 drives the second friction disc 902 to rotate. When the two extrusion blocks 904 move, they respectively squeeze the inclined surfaces of the special-shaped block 9031. The special-shaped block 9031 moves leftward under the force and pushes the push rod 903. The push rod 903 moves leftward under the force and pushes the two first friction discs 901. The two first friction discs 901 move toward the side close to the second friction disc 902 under the force, and the third tension spring is stretched. Subsequently, the two clamping rollers 705 come into contact with the connector strip and apply a force to the rear side of the connector strip through the friction with the connector strip. It should be noted that at this time, the clamping rod 207 has clamped the connector strip. The connector strip can be straightened and flattened under the action of the clamping rollers 705. Since the clamping rollers 705 are made of elastic material, the clamping rollers 705 can produce a certain degree of elastic deformation at this time, so that the two friction wheels 801 can continue to move a short distance. If the connector strip is not completely straightened and flattened at this time, through the continuous movement of the two friction wheels 801, the clamping rollers 705 can further apply a pulling force to the connector strip to ensure that the connector strip is straightened and flattened. If the connector strip is already straightened and flattened at this time, the connector strip will apply a reaction force to the two clamping rollers 705, making the clamping rollers 705 unable to rotate following the friction wheels 801. At this time, when the friction wheels 801 continue to rotate, the torsion spring will contract. Subsequently, the first friction disc 901 comes into contact with the corresponding second friction disc 902, and the first friction disc 901 limits the clamping rollers 705 through the second friction disc 902, making the two clamping rollers 705 unable to rotate in any direction. The two clamping rollers 705 jointly limit the connector strip. When the connector strip is stamped, at this time, the two clamping rollers 705 limit the connector strip, which can prevent the connector strip from moving when it is stamped, and the extrusion block 904 crosses the inclined surface of the special-shaped block 9031 and contacts the vertical surface of the special-shaped block 9031.Furthermore, when the extrusion block 904 continues to move, the push rod 903 will not move. When the friction wheel 801 continues to move, it will rotate relative to the corresponding clamping roller 705, causing the torsion spring to contract. Thus, it can prevent the force exerted on the connector tape by the clamping roller 705 driven by the friction wheel 801 from being too large when the friction wheel 801 continues to move, resulting in deformation of the connector tape until the upper die 101 completes stamping on the connector tape and the two friction wheels 801 stop moving.

[0033] When the stamping work on the connector tape is completed, the upper die 101 lifts upward. The upper die 101 drives the first rack in the transmission assembly to lift upward. Furthermore, the second gear drives the first sliding frame 702 and the second sliding frame 703 to slide away from each other along the guide rail 701 through the second rack and the third rack. The first sliding frame 702 and the second sliding frame 703 drive the rotating shafts 704 and the extrusion blocks 904 thereon to move. The rotating shaft 704 drives the clamping rollers 705, the friction wheels 801 and the first friction disks 901 thereon to move. The clamping roller 705 drives the second friction disk 902 thereon to move. The two extrusion blocks 904 move away from each other. Subsequently, the extrusion blocks 904 no longer contact the vertical surface of the special-shaped block 9031 and contact the inclined surface of the special-shaped block 9031. Thus, the special-shaped block 9031 can move. The third tension spring contracts and drives the first friction disk 901 to slide to the side away from the second friction disk 902. The two first friction disks 901 jointly push the push rod 903 to slide to the right. The push rod 903 drives the special-shaped block 9031 to slide to the right. At the same time, during the movement of the two friction wheels 801, through the friction with the friction strips 802, the corresponding rotating shafts 704 are driven by the torsion springs to rotate in opposite directions with the connection points of the first sliding frame 702 and the second sliding frame 703 as the centers. At this time, the clamping rollers 705 start to elastically recover. When the two clamping rollers 705 are fully elastically recovered, the gap between the two clamping rollers 705 increases and no longer contacts the connector tape until the upper die 101 is fully reset. Furthermore, the rotating shaft 704 drives the clamping rollers 705, the friction wheels 801 and the first friction disks 901 thereon to move back to their original positions.

[0034] Initially, the piston tube of the air pump 1001 is in a contracted state. When the upper die 101 descends, the upper die 101 drives the telescopic ends of the two air pumps 1001 to extend. When the upper die 101 lifts upward, the upper die 101 drives the telescopic ends of the two air pumps 1001 to contract. The air pump 1001 conveys air into the nozzle 1002 through the air delivery pipe. The air is ejected downward in the lower die 1 through the nozzle 1002. Thus, it can drive the air in the lower die 1 to flow downward, thereby generating negative pressure at the contact position between the connector tape and the lower die 1, further reducing the impact on the connector tape when the upper die 101 lifts upward and preventing the connector tape from jumping.

[0035] An in-mold assembly method for a continuous stamping die of a micro-connector strip, comprising the following steps: S1: First, determine whether the overall die needs to be adjusted according to the strip feeding method of the connector strip. When the connector strip is of the double-sided strip feeding type or the double-strip type, the upper die 101 is lowered by a hydraulic device in the prior art, and the limiting plate 206 is extruded by the pressure rod 205, so that the clamping rod 207 clamps the connector strip; S2: The two clamping rollers 705 straighten and flatten the connector strip by the friction between the friction wheel 801 and the friction strip 802. After the upper die 101 is lowered, it is combined with the lower die 1 to complete the assembly, and the stamping of the connector strip is completed; S3: When the upper die 101 is lifted, the piston end of the air pump 1001 driven by the upper die 101 contracts, thereby generating a negative pressure at the contact position between the lower die 1 and the connector strip. When the upper die 101 is lifted upward, the influence on the connector strip is further reduced to prevent the connector strip from jumping.

[0036] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A continuous stamping die for a micro connector strip, comprising a lower die (1), an upper die (101) being arranged on the upper side of the lower die (1), characterized in that: The clamping mechanism also includes a lifting rod (201), the lifting rod (201) is symmetrically arranged on the upper side of the lower mold (1), an extension rod (2011) is symmetrically fixedly connected to the top of the lower mold (1), the telescopic end of the extension rod (2011) is fixedly connected to the lifting rod (201), a sliding plate (202) is symmetrically slidably connected to the top of the lower mold (1), a first tension spring is arranged between the sliding plate (202) and the lower mold (1), an elastic telescopic rod (203) is fixedly connected to one side of the sliding plate (202), and a telescopic shaft (204) is symmetrically fixedly connected to the sliding plate (202). A pressure rod (205) is fixedly connected to one side of the lifting rod (201), a limit plate (206) used in conjunction with the pressure rod (205) is fixedly connected to the telescopic end of the elastic telescopic rod (203), the fixed end of the elastic telescopic rod (203) is connected to the fixed end of the telescopic shaft (204) through a hose, a sliding groove is provided through one side of the sliding plate (202), a clamping rod (207) is fixedly connected to the telescopic end of the telescopic shaft (204), the clamping rod (207) is inserted into the sliding groove of the sliding plate (202) and slides therein, and a propulsion assembly is provided on the lower mold (1).

2. A continuous stamping die for a micro connector strip according to claim 1, characterized in that: The propulsion assembly comprises a sliding rod (301), the other side of the lifting rod (201) is slidably connected with the sliding rod (301), a second tension spring is arranged between the sliding rod (301) and the lifting rod (201), and a triangular groove is formed on one side of the sliding plate (202), and a special-shaped plate (302) used in conjunction with the sliding rod (301) is fixedly connected in the triangular groove.

3. A continuous stamping die for a micro connector strip according to claim 2, characterized in that: It also comprises a limiting mechanism, the limiting mechanism comprising a first elastic wedge block (401), one side of the sliding plate (202) is slidably connected to the first elastic wedge block (401), and the first elastic wedge block (401) is used in conjunction with the limiting plate (206).

4. A continuous stamping die for a micro connector strip according to claim 3, characterized in that: The limiting mechanism further comprises a vertical rod (501), the vertical rod (501) is fixedly connected to the top of the first elastic wedge block (401), and an unlocking rod (502) is symmetrically fixedly connected to the top of the lower mold (1), and the vertical rod (501) is used in conjunction with the unlocking rod (502).

5. A continuous stamping die for a micro connector strip according to claim 4, characterized in that: The invention also comprises a connection mechanism, wherein the connection mechanism comprises a connection block (601), the connection blocks (601) are symmetrically fixedly connected to the two sides of the upper mold (101), one side of the connection block (601) is provided with a special-shaped groove through-through, a second elastic wedge block (602) and a limit pin (603) are slidably connected in the special-shaped groove, the limit pin (603) is slidably connected to the lifting rod (201), and the outer wall of the limit pin (603) is provided with a wedge groove for use with the second elastic wedge block (602).

6. A continuous stamping die for a micro connector strip according to claim 5, characterized in that: The invention also comprises a straightening mechanism, wherein the straightening mechanism comprises a guide rail (701), the top of the lower mould (1) is fixedly connected to the guide rail (701), a first sliding frame (702) and a second sliding frame (703) are slidably connected in the guide rail (701), a rotating shaft (704) is rotatably connected to the first sliding frame (702) and the second sliding frame (703), a clamping roller (705) is rotatably sleeved on the rotating shaft (704), and a transmission assembly is connected to the lower mould (101), and the transmission assembly is connected to the upper mould (101), the first sliding frame (702) and the second sliding frame (703).

7. A continuous stamping die for a micro connector strip according to claim 6, characterized in that: The straightening mechanism further comprises a friction wheel (801), the friction wheel (801) is provided on the outer wall fixed sleeve of the rotating shaft (704), a torsion spring is provided between the friction wheel (801) and the clamping roller (705), and a friction strip (802) used in conjunction with the friction wheel (801) is fixedly connected to the top of the lower die (1).

8. A continuous stamping die for a micro connector strip according to claim 7, characterized in that: It also includes a first friction disk (901), the outer walls of the two rotating shafts (704) are movably sleeved with the first friction disk (901), a third tension spring is arranged between the two first friction disks (901) and the first sliding frame (702) and the second sliding frame (703) respectively, one end of the clamping roller (705) is fixedly connected to a second friction disk (902) used in conjunction with the first friction disk (901), the top of the lower mold (1) is slidably connected to a push rod (903), the push rod (903) is used in conjunction with the first friction disk (901), one side of the push rod (903) is fixedly connected to a special-shaped block (9031), and one side of the first sliding frame (702) and the second sliding frame (703) are both fixedly connected to an extrusion block (904) used in conjunction with the special-shaped block (9031).

9. A continuous stamping die for a micro connector strip according to claim 8, characterized in that: It also includes an air pump (1001), the air pump (1001) is symmetrically fixed to the top of the lower mold (1), the piston end of the air pump (1001) is fixed to the upper mold (101), a nozzle (1002) is symmetrically fixed inside the lower mold (1), and an air supply pipe is connected between the air pump (1001) and the nozzle (1002).

10. The in-mold assembly method of a continuous stamping die for a micro connector strip according to claim 9, characterized in that: The following steps are included: S1: first, judging whether the overall mold needs to be adjusted according to the material stripping method of the connector material strip; when the connector material strip is a double-sided material stripping method or a double-material stripping method, the upper mold (101) is lowered by a hydraulic device in the prior art, and the limit plate (206) is squeezed by the pressure rod (205), so that the clamping rod (207) clamps the connector material strip; S2: The friction wheel (801) and the friction strip (802) are rubbed to make the two clamping rollers (705) straighten and flatten the connector strip, and the upper die (101) is lowered and combined with the lower die (1) to complete the assembly and stamping of the connector strip; S3: When the upper mold (101) is lifted, the upper mold (101) drives the piston end of the air pump (1001) to contract, thereby generating negative pressure at the contact position between the lower mold (1) and the connector strip, so that when the upper mold (101) is lifted upward, the impact on the connector strip is further reduced, thereby preventing the connector strip from jumping.

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