WO2019241987A1 - 一种电子载体纸带打孔用模具 - Google Patents

一种电子载体纸带打孔用模具 Download PDF

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Publication number
WO2019241987A1
WO2019241987A1 PCT/CN2018/092335 CN2018092335W WO2019241987A1 WO 2019241987 A1 WO2019241987 A1 WO 2019241987A1 CN 2018092335 W CN2018092335 W CN 2018092335W WO 2019241987 A1 WO2019241987 A1 WO 2019241987A1
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Prior art keywords
mold
die
punching
needle
circular
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PCT/CN2018/092335
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English (en)
French (fr)
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程书华
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程书华
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Application filed by 程书华 filed Critical 程书华
Priority to PCT/CN2018/092335 priority Critical patent/WO2019241987A1/zh
Publication of WO2019241987A1 publication Critical patent/WO2019241987A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/14—Punching tools; Punching dies

Definitions

  • the invention relates to the field of electronic carrier processing, in particular to a mold for punching an electronic carrier paper tape.
  • Chip electronic components are the mainstream form of discrete electronic components at present, and their size is getting smaller and smaller. At present, it has developed to 1.0mm ⁇ 0.5 mm is even 0.5mm ⁇ 0.25mm, or even smaller. At such a small scale, there must be corresponding carriers in the packaging, transportation, and access of components. At present, more plastic carriers are used as packaging carriers or paper carriers are used as miniature chip electronic components.
  • the specific packaging processing technology uses a puncher to punch two rows of holes on a paper carrier tape.
  • One row is a positioning round hole that is easily identified by the automatic identification system (where the distance from the center of the round hole to the edge of the paper tape is called E size)
  • E size the distance from the center of the round hole to the edge of the paper tape.
  • a row of square holes for chip-type electronic components are punched with a punching die after the paper tape enters the punching device through the punching positioning device.
  • Existing punching dies usually include a pair of upper and lower dies that cooperate with each other. Punching needles are installed on the upper dies, and the lower dies have pinholes for inserting the punching needles.
  • the upper mold in use in the existing market is fixed by welding between the punching pin and the upper mold. In the process of using this structure, one of the punching pins is bent, damaged, etc. When the phenomenon occurs, it is more troublesome during the repair process, or it may be necessary to directly replace the entire upper mold together, which is costly;
  • the punching hole is directly opened at the bottom Therefore, when a certain pinhole is worn or damaged, it is more troublesome during the repair process. After removing the entire die, the pinhole needs to be repaired, or the entire lower hole may need to be directly repaired. Replace the mold together, the cost is higher.
  • the technical problem to be solved by the utility model is to provide a mold for punching an electronic carrier paper tape with convenient maintenance and low cost.
  • the technical solution of the present utility model is: a mold for punching an electronic carrier paper tape, the innovation of which includes:
  • the upper die has through holes corresponding to the punching pins one by one and allows the needles of the punching pins to pass through.
  • the side of the upper die close to the upper template also has grooves for the needle holders.
  • One column is a rectangular punch, the other is a circular punch, and the corresponding through holes on the upper die are a rectangular through hole corresponding to a rectangular punch and a round corresponding to a circular punch.
  • a through hole, an anti-rotation mechanism is further provided between the needle seat of the circular punching needle and the upper die;
  • a lower template and a lower mold installed on the upper end of the lower template and fixed by bolting with the lower template the lower mold includes a movable mold and a fixed mold distributed in order from top to bottom, between the fixed mold and the lower mold
  • the fixed die and the movable die are fixed by bolting.
  • One of the pinholes in a group of pinhole groups is a circular hole punch with the upper die.
  • the circular punch holes corresponding to the needle phases are one-to-one, and the punch holes in the other group of punch hole groups are rectangular punch holes corresponding to the rectangular punch needles of the upper die one-to-one.
  • the thickness of the groove on the upper mold is consistent with the thickness of the needle seat.
  • the anti-rotation mechanism is as follows: the needle seat of the circular punching needle has a circular shape, and a gap is formed on the side of the needle seat near the inner wall of the upper mold groove, so that the side of the needle seat is a horizontal plane, And the horizontal plane is close to the inner wall of the mold groove.
  • the anti-rotation mechanism is as follows: the needle seat of the circular punching needle has a circular shape, and a gap is formed on the side of the needle seat near the inner wall of the upper mold groove, so that the side of the needle seat is a horizontal plane, A limiting card is also provided between the needle seat of the circular punching needle and the inner wall of the upper die groove. One side of the limiting card is horizontal and fits the inner side wall of the upper die groove. The other side has a circular punch.
  • the needle seat of the hole needle corresponds to and accommodates the groove which the horizontal surface of the needle seat is fitted with.
  • the lower die is further provided with a guide limit mechanism
  • the guide limit mechanism includes a pair of limit rods distributed along two sides of the groove along the extending direction of the groove, and the limit rods are installed In the fixed mold, the upper end of the fixed mold is extended to the movable mold.
  • a bearing is also installed on the side of the limit rod near the groove.
  • a U-shaped notch for bearing installation is opened on the movable mold. There is a U-shaped groove for the bearing installation.
  • a gap is left between the limit rod and the fixed mold, and at the same time, the limit rod and the fixed mold are connected by a tension spring, and a push rod is also provided on the outer side of the lower mold.
  • the side end of the mold is horizontally extended from the outside to the inside into the gap between the fixed mold and the limit rod, and abuts against the limit rod.
  • the side of the fixed mold also has a mounting block that can be installed with a tight rod. The tight rod and the mounting block are fixed by a threaded connection.
  • the through holes on the fixed mold include circular through holes corresponding to the circular needle holes and rectangular through holes covering all the rectangular needle holes.
  • the advantage of the present invention is that in the present invention, by improving the traditional upper die assembly, a movable connection is used between the upper die and the punching needle, so that when individual punching needles are damaged and need to be replaced In this case, it is only necessary to replace a single punching pin instead of the entire upper die, which is very convenient and reduces costs.
  • a combination of a movable die and a fixed die is used, and the punching holes are set at It is very convenient to remove the movable mold for maintenance or replacement.
  • the thickness of the groove on the upper die is consistent with the thickness of the needle seat, thereby avoiding the phenomenon that the punching needle moves up and down in the process of punching, and ensuring the punching effect.
  • a horizontal plane notch is opened in the needle seat of the circular punching needle, and the notch is directly attached to the inner wall of the upper die groove or the upper die groove is fitted through the cooperation of the limit card.
  • the inner side wall prevents the round punching needle from rotating during the turning process and affects the smooth progress of punching.
  • the cooperation between the limit lever and the bearing is used to limit the paper tape passing through the groove to avoid the deviation of the paper tape during the transportation process and affect the punching. It is carried out smoothly, and the use of the bearing makes the bearing rotate with the conveyance of the paper tape at the same time of the limit, to avoid the relative friction between the bearing and the paper tape and affect the smooth conveyance of the paper tape;
  • the tension between the springs is adjusted by adjusting the distance between the bearing and the groove by turning the tightening rod to ensure that the bearing can fit the paper tape without compressing the paper tape.
  • the diameter of the circular through hole on the fixed mold By designing the diameter of the circular through hole on the fixed mold to be larger than the diameter of the circular needle hole on the movable mold, so that when the needle hole on the movable mold needs to be replaced with a larger diameter, the fixed mold can still be applied.
  • the center of the center of the punching hole on the movable die and the center of the through hole on the fixed die are still misaligned, and the assembly accuracy is reduced.
  • FIG. 1 is a schematic view of an upper mold in a mold for punching an electronic carrier paper tape of the present invention.
  • FIG. 2 is a schematic diagram of a first structure of an anti-rotation mechanism in the present invention.
  • FIG. 3 is a schematic diagram of a second structure of an anti-rotation mechanism in the present invention.
  • FIG. 4 is a schematic view of a lower mold in a mold for punching an electronic carrier paper tape according to the present invention.
  • FIG. 5 is a top view of a movable mold in the present invention.
  • FIG. 6 is a bottom view of the fixed mold in the present invention.
  • a mold for punching an electronic carrier paper tape as shown in FIG. 1 to FIG. 6 includes:
  • An upper mold 1 and an upper mold 2 installed on the bottom end of the upper mold 1 and fixed with the upper mold 1 through bolts.
  • Two rows of punching pins installed on the upper die 2 and arranged side by side.
  • One of the two rows of punching pins is a rectangular punching pin and the other is a circular punching pin.
  • the punching needle includes a needle and a needle seat.
  • the die 2 has through holes corresponding one-to-one to the punching needles and allows the needles of the punching needles to pass therethrough.
  • the side of the upper die 2 near the upper die plate 1 also has a groove 3 for receiving the needle seat.
  • the thickness of the groove 3 on the upper die 2 is consistent with the thickness of the needle seat.
  • the thickness of the groove 3 on the upper die 2 is consistent with the thickness of the needle seat, thereby avoiding the phenomenon that the punching needle moves up and down during the punching process, and ensuring the punching effect.
  • the rectangular punching needle includes a rectangular needle 5 and a rectangular needle base 4.
  • the upper die 2 has a rectangular through hole corresponding to the rectangular punching needle and allowing the rectangular needle 5 to pass through.
  • the circular punching needle includes a circular needle 6 and a circular needle seat 7, and at the same time, the upper die 2 has a circular through hole corresponding to the circular punching needle and allowing the circular needle 6 to pass through.
  • An anti-rotation mechanism is also provided between the needle base 7 and the upper mold.
  • the first structure of the anti-rotation mechanism is: the circular needle base 7 has a circular shape, and a side of the circular needle base 7 near the inner wall of the groove 3 of the upper mold 2 is opened.
  • the gap is such that the side of the circular needle base 7 is a horizontal plane, and the horizontal plane is close to the inner wall of the groove 3 of the mold 2.
  • a horizontal plane notch is opened in the circular needle base 7, and the notch is directly attached to the inner wall of the groove 3 of the upper die 2, thereby preventing the circular punching needle from rotating. Rotation occurs during the process and affects the smooth progress of punching.
  • the second structure of the anti-rotation mechanism is: the circular needle seat 7 is in a circular shape, and a side of the circular needle seat 7 near the inner wall of the groove 3 of the upper mold 2 is opened.
  • the notch makes the side of the circular needle base 7 a horizontal plane, and a limiting card 9 is also provided between the circular needle base 7 and the inner wall of the groove 3 of the upper mold 2, and one side of the limiting card 9 is a horizontal plane.
  • the inner wall of the groove 3 of the upper mold 2 is attached, and the other side of the limit card 9 is provided with a groove corresponding to the circular needle seat 7 and accommodating the horizontal surface of the circular needle seat 7, and is located on the upper mold 2
  • a guiding groove 8 extending along the distribution direction of the circular punching pin is also provided at the groove 3, and at the same time, a bottom of the limit card 9 is also embedded in the guiding groove 8 and reciprocates along the extending direction of the guiding groove 8.
  • the sliding guide block facilitates the movement of the limit card 9 through the cooperation of the guide groove 8 and the guide block, and also avoids the phenomenon of the limit card 9 running off, and also limits the limit card 9 to a certain limit. effect.
  • a horizontal plane notch is opened on the circular needle seat 7 and the inner wall of the upper mold groove is fitted by the cooperation of the limit card 9 to prevent the circular punching needle from The rotation occurs during the rotation process, which affects the smooth performance of punching.
  • the limit card 9 of different calibers can be replaced according to the round needle seat 7 of different sizes, which is very convenient and has a wide application range.
  • the lower formwork and the lower formwork installed on the upper end of the lower formwork and fixed with the lower formwork by bolts.
  • the lower mold includes a movable mold 101 and a fixed mold 102 which are sequentially distributed from top to bottom.
  • the fixed mold 102 is connected to the lower template.
  • the fixed mold 102 and the movable mold 101 are fixed by bolting.
  • the pinholes in a group of the pinhole groups are circular corresponding to the round pinholes one-to-one.
  • Shaped punching holes 103, the punching holes in the other set of punching groups are rectangular punching holes 104 corresponding to the rectangular punching needles one by one, and there is a distribution along the punching holes at the lower end of the movable die 101
  • the groove 105 extends in a direction, and the groove 105 forms a path through which the paper holding tape passes after the movable mold 101 and the fixed mold 102 are closed.
  • a through hole corresponding to the position of the needle hole group is also provided at the needle hole group of the movable die 101.
  • the through hole on the fixed die 102 includes a circle corresponding to the circular needle hole 103 one-to-one.
  • the shaped through-hole 106 and the rectangular through-hole 107 covering all the rectangular needle holes 104.
  • the circular through-hole 106 communicates with the rectangular through-hole 107 to form a whole.
  • the diameter of the circular through hole 6 on the fixed die 2 is larger than the diameter of the circular needle hole 3 on the movable die 1.
  • the diameter of the circular through hole 6 on the fixed die 2 is larger than the diameter of the circular needle hole 3 on the movable die 1, so that when the needle hole on the movable die 2 needs to be replaced with a larger diameter, the The fixed die 2 can still be applied, and during assembly, the center of the center of the punching hole 3 on the movable die 1 and the center of the through hole on the fixed die 2 are not aligned, and can still work smoothly, reducing assembly accuracy.
  • a guide limit mechanism is also provided on the lower mold.
  • the guide limit mechanism includes a pair of limit rods 8 extending along the extending direction of the groove 5 and distributed on both sides of the same side end of the groove 5. Inside the mold 2, the upper end of the limit rod 8 extends to the movable mold 1.
  • a bearing 9 is also installed on the side of the limit rod 8 near the groove 5, and a movable bearing 1 is installed on the movable mold 1.
  • the U-shaped notch 10 is formed on the upper end of the fixed mold 2 to accommodate a bearing 9.
  • a gap is left between the limit rod 8 and the fixed mold 2, and at the same time, the limit rod 8 and the fixed mold 2 are connected by a tension spring 11.
  • a tightening rod 12 is also provided on the outside of the lower mold 2.
  • the tightening rod 12 extends horizontally from the lateral end of the fixed mold 2 into the gap between the fixed mold 2 and the limit rod 8 from the outside to the inside, and abuts against the limit rod 8. At the same time, it also has a capacity at the side end of the fixed mold 2.
  • the mounting block 13 on which the jacking rod 12 is mounted, and the jacking rod 12 and the mounting block 13 are fixed by a screw connection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

一种电子载体纸带打孔用模具，包括上模板（1）和上模（2）；在上模（2）上安装有两列打孔针，打孔针包括针头及针座，在上模（2）上具有与打孔针一一对应并容打孔针的针头穿过的通孔；一下模板以及安装在下模板上端的下模，下模包括一活动模（101）、一固定模（102），在活动模（101）上具有两列打针孔组，其中一组为与上模（2）的圆形打孔针相一一对应的圆形打针孔，另一组为与上模（2）的矩形打孔针相一一对应的矩形打针孔，在活动模（101）的下端还具有一沿着打针孔分布方向延伸的凹槽（105）；在固定模（102）上位于活动模（101）的打针孔组处还开有与打针孔组位置相对应的通孔。该电子载体纸带打孔用模具的优点在于：对于上下模均采用分体式结构，这样就不需要更换整个上下模，非常的方便，也降低了成本。

Description

一种电子载体纸带打孔用模具 技术领域
本涉及电子载体加工领域，特别涉及一种电子载体纸带打孔用模具。
背景技术
随着电器的小型化发展，对电子元器件微型化的要求越来越高，片式电子元件是目前分立电子元器件的主流形式，其尺寸越来越小，目前已经发展到了1.0mm×0.5mm甚至到了0.5mm×0.25mm，甚至更小。在这么小的尺度上，元器件的包装、运输和取用等方面必须要有相应的载体，目前采用较多的是利用塑料载带作为封装载体或利用纸质载带作为微型片式电子元器件的封装载体，但利用塑料载带作为封装载体，电子元器件的尺寸较大时使用塑料载带尚可，在尺寸较小时，塑料载带的生产就非常困难了，其尺寸精度难以保证，因此，用纸质载带作为微型片式电子元器件的封装载体是电子元器件微型化发展的必然趋势。具体封装加工工艺是利用打孔机在一条纸质载带上打出两排孔，一排是便于自动识别系统识别的定位圆孔(其中圆孔中心到邻近纸带边缘的距离称为E尺寸)，一排为安放片式电子元件的方形孔，这些孔都是纸带通过打孔定位装置进入打孔装置后用冲孔模具冲制而成的。
现有的冲孔模具其通常包括一对相互配合的上模与下模，在上模上安装有打孔针，在下模上具有容打孔针插入的针孔。目前，现有市场上使用中的上模，其打孔针与上模之间都是焊接固定的，而采用这种结构在使用的过程中，在其中某一个打孔针出现弯曲、损坏等现象时，在维修的过程中就比较的麻烦，或者可能就需要直接将整个上模一起更换，成本较高；另外，对于现有使用中的下模来说，其打针孔是直接开在下模上的，因此，当某个打针孔出现磨损、损伤时，在维修的过程中就比较的麻烦，需要将整个下模取出后对打针孔进行维修，或者可能就需要直接将整个下模一起更换，成本较高。
实用新型内容
本实用新型要解决的技术问题是提供一种维修更换方便且成本低的电子载体纸带打孔用模具。
为解决上述技术问题，本实用新型的技术方案为：一种电子载体纸带打孔用模具，其创新点在于：包括
一上模板以及安装在上模板底端并与上模板之间通过螺栓连接固定的上模；在上模上安装有并列分布的两列打孔针，所述打孔针包括针头及针座，在上模上具有与打孔针一一对应并容打孔针的针头穿过的通孔，在上模靠近上模板的一侧还具有容针座放置的凹槽，两列打孔针的其中一列为矩形打孔针，另一列为圆形打孔针，相应的在上模上的通孔为与矩形打孔针相 对应的矩形通孔以及与圆形打孔针相对应的圆形通孔，所述圆形打孔针的针座与上模之间还具有与防转动机构；
一下模板以及安装在下模板上端并与下模板之间通过螺栓连接固定的下模，所述下模包括自上而下依次分布的一活动模、一固定模，所述固定模与下模板之间相连，固定模与活动模之间通过螺栓连接固定，在活动模上具有两列并列分布的打针孔组，其中一组打针孔组中的打针孔为与上模的圆形打孔针相一一对应的圆形打针孔，另一组打针孔组中的打针孔为与上模的矩形打孔针相一一对应的矩形打针孔，在活动模的下端还具有一沿着打针孔分布方向延伸的凹槽，且该凹槽在活动模与固定模合模后形成容纸带通过的路径；在固定模上位于活动模的打针孔组处还开有与打针孔组位置相对应的通孔。
进一步的，所述上模上的凹槽的厚度与针座的厚度相一致。
进一步的，所述防转动机构为：圆形打孔针的针座呈圆形状，且在针座靠近上模凹槽内侧壁的一侧开有一缺口，使得针座的该侧为一水平面，且该水平面紧贴上模凹槽的内侧壁。
进一步的，所述防转动机构为：圆形打孔针的针座呈圆形状，且在针座靠近上模凹槽内侧壁的一侧开有一缺口，使得针座的该侧为一水平面，在圆形打孔针的针座与上模凹槽内侧壁之间还设置有一限位卡，该限位卡的一面为水平面并贴合上模凹槽的内侧壁，另一面具有圆形打孔针的针座相对应并容针座的水平面贴合的凹槽。
进一步的，所述下模上还设置有一导向限位机构，该导向限位机构包括一对沿着凹槽的延伸方向并分布在凹槽同一侧端的两侧的限位杆，限位杆安装在固定模内且其上端伸入至活动模处，在限位杆靠近凹槽的一侧还安装有轴承，同时在活动模上开有一容轴承安装的U形缺口，在固定模的上端开有一容轴承安装的U形凹槽。
进一步的，在限位杆与固定模之间留有间隙，同时限位杆与固定模之间通过一拉紧弹簧进行连接，在下模的外侧还设置有一顶紧杆，该顶紧杆从固定模的侧端由外向内水平伸入至固定模与限位杆之间的间隙中并抵住限位杆，同时在固定模的侧端还具有一容顶紧杆安装的安装块，且顶紧杆与安装块之间通过螺纹连接固定。
进一步的，所述固定模上的通孔包括与圆形打针孔一一对应的圆形通孔以及覆盖所有矩形打针孔的矩形通孔。
根据权利要求7所述的电子载体纸带打孔用模具，其特征在于：所述固定模上的圆形通孔的口径大于活动模上的圆形打针孔的口径。
本实用新型的优点在于：在本实用新型中，通过对传统的上模组件进行改进，对于上模与打孔针之间采用活动连接的方式，这样，当个别打孔针出现损坏需要更换时，只需更 换单独的打孔针即可，而不需要更换整个上模，非常的方便，也降低了成本，对于下模采用活动模与固定模组合的方式，并将打针孔设置在活动模上，这样只需将活动模拆卸下来进行维修或更换即可，非常的方便。
通过将上模上的凹槽的厚度与针座的厚度相一致，从而避免打孔针在打孔的过程中出现上下窜动的现象，确保打孔效果。
对于防转动机构的设置，通过在圆形打孔针的针座上开一水平面缺口，利用该缺口直接贴合上模凹槽的内侧壁或通过限位卡的配合贴合上模凹槽的内侧壁，从而防止圆形打孔针在转动的过程中发生转动而影响到打孔的顺利进行。
通过导向限位机构的设置，利用限位杆与轴承之间的配合对从凹槽中通过的纸带进行限位，避免纸带在输送的过程中出现跑偏的现象而影响到打孔的顺利进行，而且轴承的使用使得在限位的同时轴承也能随着纸带的输送而转动，避免轴承与纸带之间发生相对摩擦而影响到纸带的顺利输送；而通过顶紧杆与拉紧弹簧之间的配合，则通过转动顶紧杆来调节轴承与凹槽之间的间距以确保轴承能够贴合纸带的同时不会压紧纸带。
通过将固定模上的圆形通孔的口径设计的大于活动模上的圆形打针孔的口径，从而使得在活动模上的打针孔需要更换更大口径时，该固定模仍能适用，而且在装配时，活动模上的打针孔的圆心与固定模上的通孔的圆心不对准时仍能顺利工作，降低装配精度。
附图说明
下面结合附图和具体实施方式对本实用新型作进一步详细的说明。
图1为本实用新型的电子载体纸带打孔用模具中上模的示意图。
图2为本实用新型中防转动机构的第一种结构的示意图。
图3为本实用新型中防转动机构的第二种结构的示意图。
图4为本实用新型的电子载体纸带打孔用模具中下模的示意图。
图5为本实用新型中活动模的俯视图。
图6为本实用新型中固定模的仰视图。
具体实施方式
下面的实施例可以使本专业的技术人员更全面地理解本实用新型，但并不因此将本实用新型限制在所述的实施例范围之中。
如图1-图6所示的一种电子载体纸带打孔用模具，包括
一上模板1以及安装在上模板1底端并与上模板1之间通过螺栓连接固定的上模2。
安装在上模2上且并列分布的两列打孔针，两列打孔针的其中一列为矩形打孔针，另一列为圆形打孔针，打孔针包括针头及针座，在上模2上具有与打孔针一一对应并容打孔 针的针头穿过的通孔，在上模2靠近上模板1的一侧还具有容针座放置的凹槽3。
上模2上的凹槽3的厚度与针座的厚度相一致。通过将上模2上的凹槽3的厚度与针座的厚度相一致，从而避免打孔针在打孔的过程中出现上下窜动的现象，确保打孔效果。
矩形打孔针包括矩形针头5及矩形针座4，同时在上模2上具有与矩形打孔针一一对应并容矩形针头5穿过的矩形通孔。
圆形打孔针包括圆形针头6与圆形针座7，同时在上模2上具有与圆形打孔针一一对应并容圆形针头6穿过的圆形通孔，在圆形针座7与上模之间还具有与防转动机构。
如图2所示的示意图可知，防转动机构的第一种结构为：圆形针座7呈圆形状，且在圆形针座7靠近上模2的凹槽3内侧壁的一侧开有一缺口，使得圆形针座7的该侧为一水平面，且该水平面紧贴上模2的凹槽3的内侧壁。对于本结构的防转动机构的设置，通过在圆形针座7上开一水平面缺口，利用该缺口直接贴合上模2的凹槽3的内侧壁，从而防止圆形打孔针在转动的过程中发生转动而影响到打孔的顺利进行。
如图3所示的示意图可知，防转动机构的第二种结构为：圆形针座7呈圆形状，且在圆形针座7靠近上模2的凹槽3内侧壁的一侧开有一缺口，使得圆形针座7的该侧为一水平面，在圆形针座7与上模2的凹槽3内侧壁之间还设置有一限位卡9，该限位卡9的一面为水平面并贴合上模2的凹槽3的内侧壁，限位卡9的另一面具有圆形针座7相对应并容圆形针座7的水平面贴合的凹槽，在上模2上位于凹槽3处还设置有一沿着圆形打孔针的分布方向延伸的导向槽8，同时在限位卡9的底端还具有一嵌入导向槽8内并沿着导向槽8的延伸方向往复滑动的导向块，通过导向槽8与导向块的配合，从而方便了限位卡9的移动，同时也避免限位卡9出现跑偏的现象，对限位卡9也起到一定的限位作用。对于本结构的防转动机构的设置，通过在圆形针座7上开一水平面缺口，并通过限位卡9的配合，贴合上模凹槽的内侧壁，从而防止圆形打孔针在转动的过程中发生转动而影响到打孔的顺利进行，而且还可以根据不同尺寸的圆形针座7更换不同口径的限位卡9，非常的方便，适用范围广。
一下模板以及安装在下模板上端并与下模板之间通过螺栓连接固定的下模。
下模包括自上而下依次分布的一活动模101、一固定模102，固定模102与下模板之间相连，固定模102与活动模101之间通过螺栓连接固定。
如图5所示的示意图可知，在活动模101上具有两列并列分布的打针孔组，其中一组打针孔组中的打针孔为与圆形打孔针相一一对应的圆形打针孔103，另一组打针孔组中的打针孔为与矩形打孔针相一一对应的矩形打针孔104，在活动模101的下端还具有一沿着打针孔分布方向延伸的凹槽105，且该凹槽105在活动模101与固定模102合模后形成容纸带通过的路径。
在固定模102上位于活动模101的打针孔组处还开有与打针孔组位置相对应的通孔，固定模102上的通孔包括与圆形打针孔103一一对应的圆形通孔106以及覆盖所有矩形打针孔104的矩形通孔107，在本实施例中，圆形通孔106与矩形通孔107相连通形成一个整体。
固定模2上的圆形通6孔的口径大于活动模1上的圆形打针孔3的口径。通过将固定模2上的圆形通孔6的口径设计的大于活动模1上的圆形打针孔3的口径，从而使得在活动模2上的打针孔需要更换更大口径时，该固定模2仍能适用，而且在装配时，活动模1上的打针孔3的圆心与固定模2上的通孔的圆心不对准时仍能顺利工作，降低装配精度。
在下模上还设置有一导向限位机构，导向限位机构包括一对沿着凹槽5的延伸方向并分布在凹槽5同一侧端的两侧的限位杆8，限位杆8安装在固定模2内且限位杆8的上端伸入至活动模1处，在限位杆8靠近凹槽5的一侧还安装有轴承9，同时在活动模1上开有一容轴承9安装的U形缺口10，在固定模2的上端开有一容轴承9安装的U形凹槽。通过导向限位机构的设置，利用限位杆8与轴承之9间的配合对从凹槽5中通过的纸带进行限位，避免纸带在输送的过程中出现跑偏的现象而影响到打孔的顺利进行，而且轴承9的使用使得在限位的同时轴承9也能随着纸带的输送而转动，避免轴承9与纸带之间发生相对摩擦而影响到纸带的顺利输送。
在限位杆8与固定模2之间留有间隙，同时限位杆8与固定模2之间通过一拉紧弹簧11进行连接，在下模2的外侧还设置有一顶紧杆12，该顶紧杆12从固定模2的侧端由外向内水平伸入至固定模2与限位杆8之间的间隙中并抵住限位杆8，同时在固定模2的侧端还具有一容顶紧杆12安装的安装块13，且顶紧杆12与安装块13之间通过螺纹连接固定。通过顶紧杆12与拉紧弹簧11之间的配合，则通过转动顶紧杆12来调节限位杆8与凹槽5之间的间距从而实现了调节轴承与凹槽之间的间距以确保轴承能够贴合纸带的同时不会压紧纸带。
本行业的技术人员应该了解，本实用新型不受上述实施例的限制，上述实施例和说明书中描述的只是说明本实用新型的原理，在不脱离本实用新型精神和范围的前提下，本实用新型还会有各种变化和改进，这些变化和改进都落入要求保护的本实用新型范围内。本实用新型要求保护范围由所附的权利要求书及其等效物界定。

Claims (8)

  1. 一种电子载体纸带打孔用模具，其特征在于：包括
    一上模板以及安装在上模板底端并与上模板之间通过螺栓连接固定的上模；在上模上安装有并列分布的两列打孔针，所述打孔针包括针头及针座，在上模上具有与打孔针一一对应并容打孔针的针头穿过的通孔，在上模靠近上模板的一侧还具有容针座放置的凹槽，两列打孔针的其中一列为矩形打孔针，另一列为圆形打孔针，相应的在上模上的通孔为与矩形打孔针相对应的矩形通孔以及与圆形打孔针相对应的圆形通孔，所述圆形打孔针的针座与上模之间还具有与防转动机构；
    一下模板以及安装在下模板上端并与下模板之间通过螺栓连接固定的下模，所述下模包括自上而下依次分布的一活动模、一固定模，所述固定模与下模板之间相连，固定模与活动模之间通过螺栓连接固定，在活动模上具有两列并列分布的打针孔组，其中一组打针孔组中的打针孔为与上模的圆形打孔针相一一对应的圆形打针孔，另一组打针孔组中的打针孔为与上模的矩形打孔针相一一对应的矩形打针孔，在活动模的下端还具有一沿着打针孔分布方向延伸的凹槽，且该凹槽在活动模与固定模合模后形成容纸带通过的路径；在固定模上位于活动模的打针孔组处还开有与打针孔组位置相对应的通孔。
  2. 根据权利要求1所述的电子载体纸带打孔用模具，其特征在于：所述上模上的凹槽的厚度与针座的厚度相一致。
  3. 根据权利要求1所述的电子载体纸带打孔用模具，其特征在于：所述防转动机构为：圆形打孔针的针座呈圆形状，且在针座靠近上模凹槽内侧壁的一侧开有一缺口，使得针座的该侧为一水平面，且该水平面紧贴上模凹槽的内侧壁。
  4. 根据权利要求1所述的电子载体纸带打孔用模具，其特征在于：所述防转动机构为：圆形打孔针的针座呈圆形状，且在针座靠近上模凹槽内侧壁的一侧开有一缺口，使得针座的该侧为一水平面，在圆形打孔针的针座与上模凹槽内侧壁之间还设置有一限位卡，该限位卡的一面为水平面并贴合上模凹槽的内侧壁，另一面具有圆形打孔针的针座相对应并容针座的水平面贴合的凹槽。
  5. 根据权利要求1所述的电子载体纸带打孔用模具，其特征在于：所述下模上还设置有一导向限位机构，该导向限位机构包括一对沿着凹槽的延伸方向并分布在凹槽同一侧端的两侧的限位杆，限位杆安装在固定模内且其上端伸入至活动模处，在限位杆靠近凹槽的一侧还安装有轴承，同时在活动模上开有一容轴承安装的U形缺口，在固定模的上端开有一容轴承安装的U形凹槽。
  6. 根据权利要求5所述的电子载体纸带打孔用模具，其特征在于：在限位杆与固定模之间留有间隙，同时限位杆与固定模之间通过一拉紧弹簧进行连接，在下模的外侧还设置有一顶 紧杆，该顶紧杆从固定模的侧端由外向内水平伸入至固定模与限位杆之间的间隙中并抵住限位杆，同时在固定模的侧端还具有一容顶紧杆安装的安装块，且顶紧杆与安装块之间通过螺纹连接固定。
  7. 根据权利要求1所述的电子载体纸带打孔用模具，其特征在于：所述固定模上的通孔包括与圆形打针孔一一对应的圆形通孔以及覆盖所有矩形打针孔的矩形通孔。
  8. 根据权利要求7所述的电子载体纸带打孔用模具，其特征在于：所述固定模上的圆形通孔的口径大于活动模上的圆形打针孔的口径。
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