Injection mold for connector housing

Abstract

The present application relates to the technical field of molds, and discloses an injection mold for a connector shell, comprising an upper mold and a lower mold, wherein a side draw strip is slidingly provided on the upper mold, a first dovetail hole is provided on the side draw strip, a side core is provided on the side draw strip, an upper cavity for inserting the side core is provided on the upper mold, a second dovetail hole is provided on the side core, a dovetail strip is provided on the side draw strip, and the dovetail strip is inserted into the first dovetail hole and the second dovetail hole; when the dovetail strip is inserted into the first dovetail hole and the second dovetail hole, the side draw strip and the side core are fixed to each other. In the present application, if the side core is damaged, the staff can separate the side draw strip and the side core from each other through the dovetail strip, and the staff can replace the side core, so that the side draw strip does not need to be replaced, thereby reducing the replacement cost of the injection mold.

Description

Technical Field

[0001] The present application relates to the technical field of molds, and in particular to an injection mold for a connector housing. Background Art

[0002] A mold is a tool used to make molded objects. The connector housing is usually made of plastic. In order to enhance the locking effect of the terminal, a perforation is opened on the connector housing, and a limit block is slidably connected in the perforation. After the terminal is inserted into the perforation, the limit block slides in the perforation, allowing the limit block to abut the terminal, thereby locking the connector and the terminal.

[0003] The injection mold includes an upper mold and a lower mold. The upper mold is provided with a measuring hole, and a side drawing bar is slidably connected to the measuring hole. The side drawing bar is provided with a side pulling core. When the upper mold and the lower mold are abutted, the side pulling core is inserted into the measuring hole to realize mold closing.

[0004] When the injection mold is used for a long time, the side core pulls are damaged and difficult to replace, so the injection mold needs to be replaced as a whole, resulting in a high replacement cost for the injection mold. Summary of the Invention

[0005] In order to improve the problem that the side core pull is difficult to replace separately, the present application provides an injection mold for a connector housing.

[0006] The present application provides an injection mold for a connector housing, which adopts the following technical solution:

[0007] A connector housing injection mold comprises an upper mold and a lower mold, wherein a side draw strip is slidingly provided on the upper mold, a first dovetail hole is provided on the side draw strip, a side core is provided on the side draw strip, an upper cavity for inserting the side core is provided on the upper mold, a second dovetail hole is provided on the side draw strip, a dovetail strip is provided on the side draw strip, and the dovetail strip is inserted into the first dovetail hole and the second dovetail hole; when the dovetail strip is inserted into the first dovetail hole and the second dovetail hole, the side draw strip and the side core are fixed to each other.

[0008] By adopting the above technical solution, if the side core pulling is damaged, the staff can separate the side pull strip and the side core pulling from each other through the dovetail bar from the first dovetail hole and the second dovetail hole, and the staff can replace the side core pulling, so that the side pull strip does not need to be replaced, reducing the replacement cost of the injection mold; by inserting the dovetail bar into the first dovetail hole and the second dovetail hole, the dovetail bar can realize the mutual fixation of the side pull strip and the side core pulling, so that the side pull strip can drive the side core pulling to move.

[0009] Optionally, the upper mold is provided with an operating strip and an upper core pulling, the upper core pulling can be inserted into the side core pulling, the side pull strip is provided with an operating hole for the operating strip to pass through, and the lower mold is provided with a accommodating groove for the operating strip to be inserted, and the operating strip is provided with a first movable surface and a second movable surface, the first movable surface and the second movable surface are respectively located on opposite sides of the operating strip, the distance between the first movable surface and the side core pulling gradually increases in the vertical downward direction, and the distance between the second movable surface and the side core pulling gradually increases in the vertical downward direction, the first movable surface and the second movable surface can both abut the hole wall of the operating hole, and the distance between the hole wall of the operating hole and the side core pulling gradually increases in the vertical downward direction; when the upper mold falls, the first movable surface drives the side core pulling to be inserted into the upper mold cavity through the hole wall of the operating hole, and when the operating strip is located in the accommodating groove, the upper core pulling is inserted into the side core pulling; when the upper mold is lifted, the upper core pulling is separated from the side core pulling, and the second movable surface is located at the operating hole, and the second movable surface drives the side core pulling to be separated from the upper mold cavity through the hole wall of the operating hole.

[0010] By adopting the above technical solution, when the upper mold falls, the upper mold drives the operating bar to move, allowing the operating bar to move in the operating hole, and the first moving surface drives the side core pulling to be inserted into the upper cavity through the hole wall of the operating hole, and then the upper mold continues to move, allowing the upper core pulling to fall, and at this time the operating bar is inserted into the accommodating groove; when the upper mold is lifted, the upper mold drives the upper core pulling to be lifted, so that the upper core pulling is separated from the side core pulling, and then the upper mold continues to be lifted, and the operating bar moves from the accommodating groove to the operating hole, allowing the second moving surface to drive the side core pulling to be separated from the upper cavity through the hole wall of the operating hole, so that the side core pulling can be separated from the upper cavity, thereby realizing the separation of the connector shell from the upper cavity.

[0011] Optionally, a side withdrawal block is provided on the side withdrawal strip, and a side withdrawal groove for inserting the side withdrawal block is opened on the side withdrawal core; when the side withdrawal block is inserted into the side withdrawal groove, the first dovetail hole is aligned with the second dovetail hole.

[0012] By adopting the above technical solution, the side pull-out block is inserted into the side pull-out groove to achieve alignment of the side pull-out strip and the side pull-out core, so that the first dovetail hole and the second dovetail hole are aligned, thereby allowing the side pull-out strip and the side pull-out core to be pre-positioned so that the dovetail strip can be inserted into the first dovetail hole and the second dovetail hole.

[0013] Optionally, it also includes a mounting seat, the side drawer is slidably connected to the mounting seat, the upper mold is provided with a side drawer hole for the side drawer to pass through, the upper mold is slidably connected with a connecting strip, the mounting seat is provided with a cylinder for pushing the connecting strip, the connecting strip is provided with a connecting piece for fixing the side drawer, the connecting strip is provided with a first magnet, the cylinder is provided with a second magnet, and the first magnet absorbs the second magnet; when the connecting strip abuts the side drawer, the connecting piece realizes the mutual fixation of the connecting strip and the side drawer, and at this time the first magnet absorbs the second magnet; when the connecting strip does not abut the side drawer, the cylinder cannot drive the side drawer to move.

[0014] By adopting the above technical solution, when the upper mold falls, the connecting strip abuts the mounting seat, and the cylinder starts at this time, and the cylinder pushes the connecting strip to move, so that the connecting strip drives the side pull-out strip to move through the connecting piece, so that the side core pull-out can be smoothly inserted into the upper mold cavity; when the cylinder starts and the upper mold has not fallen yet, the cylinder will not drive the side pull-out strip to move, so that the side core pull-out will not be located on the moving path of the upper mold, and even if the upper mold falls, the side core pull-out will not be damaged, reducing the damage to the side core pull-out; the first magnet absorbs the second magnet, so that the cylinder can drive the connecting strip to reset, and the connecting strip drives the side core pull-out from the upper mold cavity through the connecting piece.

[0015] Optionally, the connecting member includes a connecting block and a clamping block, the clamping block is arranged on the connecting block, the connecting block is arranged on the connecting strip, a connecting groove for inserting the connecting block is provided on the side drawer strip, and a clamping groove for inserting the clamping block is provided on the connecting groove; when the connecting block is inserted into the connecting groove, the clamping block is located in the clamping groove, and at this time the connecting strip and the side drawer strip are fixed to each other.

[0016] By adopting the above technical solution, the connecting block is inserted into the connecting groove, and the card block is inserted into the card groove, so that the connecting strip and the side drawer are fixed to each other, allowing the connecting strip to drive the side drawer to move; at the same time, when the connecting strip and the side drawer are not aligned, the connecting strip is difficult to fall, and the staff can directly observe that the connecting strip and the side drawer are not aligned, so that the staff can adjust the position of the connecting strip or the side drawer in time.

[0017] Optionally, a return spring is provided on the mounting seat, and the return spring is arranged on the side draw bar, and the return spring is used to drive the side draw bar to separate from the upper cavity.

[0018] By adopting the above technical solution, if the staff accidentally touches the cylinder switch and makes the cylinder retract, the side pull-out strip lacks the drive of the cylinder until the upper core pull-out is separated from the side core pull-out. The reset spring can drive the side pull-out strip to move, so that the reset spring can drive the side core pull-out to separate from the upper cavity through the side pull-out strip, thereby avoiding the lack of reset power of the side core pull-out due to accidental touching of the cylinder; at the same time, the reset spring can drive the side pull-out strip to reset, increase the reset power of the side pull-out strip, and accelerate the separation of the side core pull-out and the side pull-out strip from the upper cavity.

[0019] Optionally, a limiting groove is provided on the mounting seat, a limiting plate is provided in the limiting groove, and a sliding groove for the side drawer to slide is provided on the limiting plate.

[0020] By adopting the above technical solution, the diameter of the sliding groove can be changed by replacing the limit plate, so that side drawers of different sizes can be located in the sliding groove. If the size of the connector housing changes, the cylinder, mounting seat and other structures do not need to be replaced, reducing the replacement cost.

[0021] Optionally, a through hole connected to the sliding groove is provided on the limit plate, and a reset plate is provided on the reset spring. The reset plate is slidably connected to the through hole, and a first mounting block is slidably connected to the mounting seat. When the limit plate is installed on the mounting seat, the first mounting block pushes the reset plate to be inserted into the sliding groove. At this time, the reset spring can drive the side draw bar to move.

[0022] By adopting the above technical solution, the first mounting block is slid to drive the reset plate to move, and the reset plate is moved from the through hole to the sliding groove. At this time, the reset spring can be located in the sliding groove, so that the reset spring can drive the side draw bar to move.

[0023] Optionally, a rotating bar is rotatably connected in the limiting groove, the first mounting block is arranged on one end of the rotating bar, and a second mounting block is provided at the other end of the rotating bar, and the second mounting block is located on the falling path of the connecting bar; when the connecting bar falls, the rotating bar can drive the reset plate to be inserted into the sliding groove through the first mounting block.

[0024] By adopting the above technical solution, when the connecting bar falls, the second mounting block is located on the falling path of the connecting bar, the connecting bar drives the second mounting block to move, the second mounting block can drive the rotating bar to rotate, and the rotating bar drives the first mounting block to move, so that the first mounting block pushes the reset plate to move from the through hole to the sliding groove, at this time the reset spring can move from the through hole to the sliding groove, so that the reset spring can realize the reset of the side drawer; through the falling of the upper film, the staff observes whether the side drawer is reset, so that the staff can know whether the limit plate is installed in place, if the limit plate is not installed in place, the reset spring is difficult to move into the sliding groove, that is, the side drawer is not completely reset, and the staff can install the limit plate in time.

[0025] Optionally, a placement groove is provided on the mounting seat, a placement plate is slidably connected to the placement groove, the rotating bar is rotatably connected to the placement plate, a fixing bar is provided on the placement plate, and a fixing groove for inserting the fixing bar is provided on the limiting plate; when the placement plate is installed in the placement groove, the fixing bar is inserted into the fixing groove, and at this time the limiting plate is fixed to the mounting seat.

[0026] By adopting the above technical solution, the placement plate is installed in the placement groove. When the fixing bar is inserted into the fixing groove, the fixing bar can limit the limit plate, so that the limit plate can be fixed on the mounting seat, avoiding the separation of the limit plate and the mounting seat, so that the limit plate can be stably located on the mounting seat, reducing the possibility of the limit plate moving from the mounting seat.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] If the side core pulling is damaged, the staff can separate the side pull strip and the side core pulling from each other by detaching the dovetail bar from the first dovetail hole and the second dovetail hole. The staff can replace the side core pulling, so that the side pull strip does not need to be replaced, reducing the replacement cost of the injection mold; the dovetail bar is inserted into the first dovetail hole and the second dovetail hole to fix the side pull strip and the side core pulling to each other, so that the side pull strip can drive the side core pulling to move.

[0029] When the upper mold falls, the upper mold drives the operating bar to move, allowing the operating bar to move in the operating hole, and the first moving surface drives the side core pulling to be inserted into the upper cavity through the hole wall of the operating hole, and then the upper mold continues to move, allowing the upper core pulling to fall, and at this time the operating bar is inserted into the accommodating groove; when the upper mold is lifted, the upper mold drives the upper core pulling to be lifted, so that the upper core pulling is separated from the side core pulling, and then the upper mold continues to be lifted, and the operating bar moves from the accommodating groove to the operating hole, allowing the second moving surface to drive the side core pulling to be separated from the upper cavity through the hole wall of the operating hole, so that the side core pulling can be separated from the upper cavity, thereby realizing the separation of the connector shell from the upper cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a structural diagram of Example 1;

[0031] Figure 2 It is along Figure 1 Partial cross-sectional view along line AA;

[0032] Figure 3 This is an exploded diagram showing the side core pulling in Example 1;

[0033] Figure 4 It is along Figure 2 An enlarged schematic diagram of part B;

[0034] Figure 5 is a structural diagram of Example 2;

[0035] Figure 6 It is along Figure 5 Partial cross-section view of the CC line;

[0036] Figure 7 It is a structural schematic diagram highlighting the upper core pulling in Example 2.

[0037] Figure numerals: 1, upper mold; 11, upper mold cavity; 12, side withdrawal hole; 13, upper core; 14, operating bar; 141, first moving surface; 142, second moving surface; 143, first push inclined surface; 144, first push plane; 15, connecting plate; 151, connecting bar; 152, groove; 153, first magnet; 16, connecting piece; 161, connecting block; 162, clamping block; 2, lower mold; 21, lower mold cavity; 22, accommodating groove; 3, side withdrawal bar; 31, first dovetail hole; 32, dovetail bar; 33, operating hole; 331, first operating inclined surface; 332, second Pushing plane; 333, second operating inclined plane; 34, side pull-out block; 35, connecting groove; 351, card slot; 36, movable plate; 4, side core pulling; 41, second dovetail hole; 42, side pull-out groove; 5, mounting seat; 51, limiting groove; 52, placement groove; 53, cylinder; 531, driving plate; 532, second magnet; 6, limiting plate; 61, sliding groove; 62, fixing groove; 63, through hole; 631, reset plate; 632, reset spring; 7, placement plate; 71, fixing bar; 72, rotating groove; 73, rotating bar; 731, first mounting block; 732, second mounting block. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-7 This application is described in further detail. Example

[0039] This embodiment discloses an injection mold for a connector housing. Figure 1 and Figure 2 An injection mold for a connector housing includes an upper mold 1 and a lower mold 2. The upper mold 1 is provided with an upper cavity 11, and the lower mold 2 is provided with a lower cavity 21. When the upper mold 1 and the lower mold 2 are closed, the upper cavity 11 and the lower cavity 21 are connected to each other.

[0040] Reference Figure 2 and Figure 3 The upper mold 1 has two side-draw holes 12, into which a side-draw bar 3 is slidably connected. A side core 4 is provided on the side core 4. A plurality of second dovetail holes 41 are formed on the surface of the side core 4, extending along the height of the side core 4. A plurality of first dovetail holes 31 are formed on the surface of the side-draw bar 3, extending along the height of the side-draw bar 3. The plurality of first dovetail holes 31 are arranged in an array along the width of the side-draw bar 3, while the plurality of second dovetail holes 41 are arranged in an array along the width of the side core 4.

[0041] Reference Figure 3The side pull-out strip 3 is provided with a plurality of dovetail strips 32, which can be inserted into the first dovetail hole 31 and the second dovetail hole 41. When the dovetail strip 32 is inserted into the first dovetail hole 31 and the second dovetail hole 41, the side pull-out strip 3 and the side core 4 are fixed to each other.

[0042] Reference Figure 4 Two upper core pulls 13 are fixedly connected to the upper mold 1, and the side core pulls 4 are provided with through-holes for inserting the upper core pulls 13. When the upper mold 1 and the lower mold 2 are closed, the upper core pulls 13 are located in the upper mold cavity 11. An operating strip 14 is fixedly connected to the upper mold 1 and extends in the vertical direction. The side pulls 3 are provided with operating holes 33 for inserting the operating strips 14. The lower mold 2 is provided with two receiving grooves 22 for inserting the operating strips 14.

[0043] Reference Figure 4 The operating bar 14 is provided with a first moving surface 141 and a second moving surface 142. The first moving surface 141 and the second moving surface 142 are located on different sides of the operating bar 14, that is, the first moving surface 141 is located on the side of the operating bar 14 close to the side pull core 4, and the second moving surface 142 is located on the side of the operating bar 14 away from the side pull core 4. A first push inclined surface 143 and a first push plane 144 are provided on the surface of the operating bar 14 where the first moving surface 141 is located. The first push plane 144 is located between the first push inclined surface 143 and the first moving surface 141.

[0044] Reference Figure 4 The distance between the first moving surface 141 and the side core pull 4 gradually increases in the vertical downward direction, and the first moving surface 141 can abut the wall of the operating hole 33. The distance between the second moving surface 142 and the side core pull 4 gradually increases in the vertical downward direction, and the second moving surface 142 can abut the wall of the operating hole 33. The first pushing plane 144 extends in the vertical direction of the operating bar 14, and the first pushing inclined surface 143 extends in the inclined direction of the first moving surface 141, and the first pushing inclined surface 143 is located on the side of the first moving surface 141 away from the ground.

[0045] Reference Figure 4A first operating inclined surface 331 is provided on the hole wall of the operating hole 33 close to the side core pull 4, and a second operating inclined surface 333 is provided on the hole wall of the operating hole 33 close to the side core pull 4, and the first operating inclined surface 331 and the second operating inclined surface 333 are symmetrically arranged. The distance between the first operating inclined surface 331 and the side core pull 4 gradually increases in the vertical downward direction, and the operating inclined surface 331 can abut the first moving surface 141. The distance between the second operating inclined surface 333 and the side core pull 4 gradually increases in the vertical downward direction, and the second operating inclined surface can abut the second moving surface 142. A second pushing plane 332 is provided on the hole wall of the operating hole 33 close to the side core pull 4, and the second pushing plane 332 is located on the side of the first operating inclined surface 331 close to the ground, and the second pushing plane 332 extends in the vertical downward direction.

[0046] Reference Figure 4 First, the upper mold 1 falls, and the operating strip 14 is inserted into the operating hole 33 of the side core pulling 4, so that the first moving surface 141 abuts against the first operating inclined surface 331, and the first moving surface 141 drives the side pulling strip 3 to move, so that the side core pulling 4 can be inserted into the upper cavity 11, and then the upper mold 1 continues to fall, and the operating strip 14 is inserted into the accommodating groove 22, and the first pushing plane 144 abuts against the second pushing plane 332 and the first pushing inclined surface 143 abuts against the first operating inclined surface 331, so as to increase the contact area between the side core pulling 4 and the operating strip 14 and reduce the pressure on the operating strip 14. At this time, the operating strip 14 does not drive the side core pulling 4 to move, and the upper core pulling 13 is inserted into the through hole of the side core pulling 4 to realize the combination of the upper core pulling 13 and the side core pulling 4.

[0047] Reference Figure 4 First, the upper mold 1 is lifted, and the operating strip 14 moves from the accommodating groove 22 to the operating hole 33 of the side core pull 4, so that the upper core pull 13 is separated from the side core pull 4. Then the upper mold 1 continues to be lifted, and the operating strip 14 moves away from the second moving surface 142 of the side core pull 4 in the operating hole 33 of the side core pull 4, so that the second moving surface 142 moves the opposite side pull strip 3 through the second operating inclined surface 331, so that the side core pull 4 can be separated from the upper cavity 11.

[0048] Reference Figure 4 When the operating strip 14 is inserted into the receiving groove 22, the second moving surface 142 only contacts the groove wall of the receiving groove 22, that is, the operating strip 14 does not drive the lower mold 2 to move. At this time, the first pushing plane 144 contacts the second pushing plane 332, and the first pushing inclined surface 143 contacts the first operating inclined surface 331. When the operating strip 14 is located in the operating hole 33, the second moving surface 142 can contact the hole wall of the operating hole 33, allowing the operating strip 14 to drive the side core pull 4 to move.

[0049] Reference Figure 3A plurality of side draw blocks 34 are fixedly connected to the surface of the side draw bar 3, and the plurality of side draw blocks 34 are arranged in an array along the length of the side draw bar 3. A plurality of side draw grooves 42 are formed on the side pull core 4, and the plurality of side draw grooves 42 are arranged in an array along the length of the side pull core 4, and the side draw blocks 34 are inserted into the side draw grooves 42. When the side draw blocks 34 are inserted into the side draw grooves 42, the side draw bar 3 and the side pull core 4 are pre-fixed, and the first dovetail hole 31 is aligned with the second dovetail hole 41.

[0050] The implementation principle of Example 1 is as follows: the upper mold 1 falls, the operating strip 14 is inserted into the operating hole 33 of the side core pull 4, the first movable surface 141 is abutted against the first operating inclined surface 331, and the first movable surface 141 drives the side pull strip 3 to move, so that the side core pull 4 can be inserted into the upper cavity 11, and then the upper mold 1 continues to fall, and the operating strip 14 is inserted into the accommodating groove 22. At this time, the operating strip 14 does not drive the side core pull 4 to move, and the upper core pull 13 is inserted into the through hole of the side core pull 4, thereby realizing the mold closing of the upper core pull 13 and the side core pull 4. Example

[0051] Reference Figure 5 and Figure 6 This embodiment differs from the first embodiment in that it further includes two mounting bases 5. The mounting bases 5 have limiting grooves 51 formed on their surfaces. Limiting plates 6 are provided within the limiting grooves 51. The limiting plates 6 have sliding grooves 61 for the side pull strips 3 to slide. The sliding grooves 61 of different limiting plates 6 have different sizes to accommodate side pull strips 4 of different sizes.

[0052] Reference Figure 5 The side of the mounting base 5 is provided with a placement slot 52, which is connected to the limiting slot 51. A placement plate 7 is provided in the placement slot 52, and a fixing bar 71 is fixedly connected to the placement plate 7. The side of the limiting plate 6 is provided with a fixing slot 62 for inserting the fixing bar 71. When the fixing bar 71 is inserted into the fixing slot 62, the placement plate 7 is located in the placement slot 52, and the limiting plate 6 is fixed in the limiting slot 51.

[0053] Reference Figure 5 and Figure 6 Two cylinders 53 are fixedly connected to the mounting base 5. A drive plate 531 is fixedly connected to the drive shaft of the cylinder 53, and the cylinder 53 drives the drive plate 531 to move in the direction of the side draw bar 3. Two connecting plates 15 are fixedly connected to the side of the upper mold 1. The connecting plates 15 are provided with connecting strips 151. A groove 152 is provided on the surface of the connecting strip 151. The groove 152 is for the connecting plate 15 to be inserted, and the groove 152 extends along the length of the connecting strip 151. In other words, the connecting strip 151 can slide horizontally on the connecting plate 15, and then the connecting plate 15 can move vertically within the groove 152. The sliding path of the connecting strip 151 intersects with the movement path of the drive plate 531.

[0054] Reference Figure 6 and Figure 7 When the upper mold 1 falls, the connecting plate 15 slides in the groove 152, allowing the upper core pull 13 to be inserted into the side core pull 4, thereby completing the combination of the upper core pull 13 and the side core pull 4. When the upper mold 1 is lifted, the connecting plate 15 is lifted in the groove 152, allowing the upper core pull 13 to separate from the side core pull 4. At this time, the connecting strip 151 still abuts the mounting seat 5.

[0055] Reference Figure 6 The second magnet 532 is fixedly connected to the surface of the driving plate 531 near the side draw bar 3, and the first magnet 153 is fixedly connected to the surface of the connecting bar 151 near the driving plate 531. The second magnet 532 attracts the first magnet 153, that is, the driving plate 531 can drive the connecting bar 151 to move.

[0056] Reference Figure 5 and Figure 6 , a connecting piece 16 is provided on the connecting strip 151, and the connecting piece 16 includes a connecting block 161 and two clamping blocks 162. The connecting block 161 is fixedly connected to the surface of the connecting strip 151 away from the first magnet 153, and the two clamping blocks 162 are fixedly connected to the connecting block 161. A connecting groove 35 for inserting the connecting block 161 is provided on the surface of the side draw bar 3 away from the side pull core 4, and a clamping groove 351 for inserting the clamping block 162 is provided on the groove wall of the connecting groove 35. When the connecting block 161 is inserted into the connecting groove 35, the clamping block 162 is inserted into the clamping groove 351, thereby realizing the mutual fixation of the side draw bar 3 and the connecting strip 151, so that the connecting strip 151 can drive the side draw bar 3 to move.

[0057] Reference Figure 5 and Figure 6 When the upper mold 1 falls, the connecting bar 151 is located between the side draw bar 3 and the driving plate 531. At this time, the connecting block 161 is inserted into the connecting groove 35 to fix the connecting bar 151 and the side draw bar 3 to each other, and the second magnet 532 abuts against the first magnet 153, that is, the cylinder 53 can push the connecting bar 151 to move, so that the side pull core 4 can be inserted into the side pull hole 12.

[0058] Reference Figure 6 When the cylinder 53 retracts, the second magnet 532 attracts the first magnet 153, causing the driving plate 531 to move the connecting bar 151, allowing the connecting bar 151 to drive the side pull core 4 out of the side pull hole 12. If the cylinder 53 is mistakenly activated before the upper mold 1 falls, the length of the connecting bar 151 will be greater than the movement distance of the driving plate 531, so that the driving plate 531 does not abut the side pull bar 3, and the side pull core 4 will not be inserted into the side pull hole 12.

[0059] Reference Figure 5 and Figure 6The limiting plate 6 is provided with a through hole 63 connected to the sliding groove 61, and a reset plate 631 is slidably connected in the through hole 63, and a reset spring 632 is fixedly connected to the surface of the reset plate 631. A movable plate 36 is fixedly connected to the surface of the side draw bar 3 close to the sliding groove 61. When the side draw bar 3 is located in the sliding groove 61, the movable plate 36 abuts against the reset spring 632. When the reset spring 632 is located in the through hole 63, the reset spring 632 is in a compressed state; when the reset spring 632 is located in the sliding groove 61, the reset spring 632 is in a non-stressed state. When the reset plate 631 and the reset spring 632 are both located in the sliding groove 61, the reset spring 632 drives the movable plate 36 to move toward the direction of the cylinder 53, so that the side draw bar 3 and the side pull core 4 are separated from the side pull hole 12. If the cylinder 53 retracts due to accidental contact, after the upper mold 1 is lifted, the side core 4 can be disengaged from the side withdrawal hole 12, and the return spring 632 drives the side withdrawal strip 3 and the side core 4 to disengage from the side withdrawal hole 12.

[0060] Reference Figure 6 The placement plate 7 defines a rotation slot 72, into which a rotation bar 73 is rotatably connected. A first mounting block 731 is fixedly connected to one end of the rotation bar 73, while a second mounting block 732 is fixedly connected to the other end. The first mounting block 731 is heavier than the second mounting block 732, and both the first mounting block 731 and the second mounting block 732 extend perpendicular to the length of the rotation bar 73. The first mounting block 731 is insertable into the through hole 63, while the second mounting block 732 is located in the falling path of the connecting bar 151.

[0061] Reference Figure 6 When the locking cam 731 is in the unlock position, the locking cam 732 is in the unlock position, and the locking cam 733 is in the unlock position, so that the master lock 61 is locked and the master lock 61 is unlocked.

[0062] The implementation principle of Example 2 is: the upper mold 1 falls, the connecting strip 151 is located between the driving plate 531 and the side withdrawal strip 3, the cylinder 53 is started, and the driving plate 531 moves against the connecting strip 151, and the connecting strip 151 drives the side withdrawal strip 3 to move through the connecting block 161 and the clamping block 162, so that the side withdrawal core 4 is inserted into the side withdrawal hole 12.

[0063] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present application should be included in the scope of protection of the present application.

Claims

1. An injection mold for a connector housing, comprising an upper mold (1) and a lower mold (2), characterized in that: A side draw bar (3) is slidingly provided on the upper mold (1), a first dovetail hole (31) is provided on the side draw bar (3), a side core pull (4) is provided on the side draw bar (3), an upper mold cavity (11) for inserting the side core pull (4) is provided on the upper mold (1), a second dovetail hole (41) is provided on the side core pull (4), a dovetail bar (32) is provided on the side draw bar (3), and the dovetail bar (32) is inserted into the first dovetail hole (31) and the second dovetail hole (41); when the dovetail bar (32) is inserted into the first dovetail hole (31) and the second dovetail hole (41), the side draw bar (3) and the side core pull (4) are fixed to each other; The upper mold (1) is provided with an operating strip (14) and an upper core pull (13), the upper core pull (13) can be inserted into the side core pull (4), the side core pull (3) is provided with an operating hole (33) for the operating strip (14) to pass through, the lower mold (2) is provided with a receiving groove (22) for the operating strip (14) to be inserted, the operating strip (14) is provided with a first moving surface (141) and a second moving surface (142), the first moving surface (141) and the second moving surface (142) are respectively located on opposite sides of the operating strip (14), the distance between the first moving surface (141) and the side core pull (4) gradually increases in a vertical downward direction, the distance between the second moving surface (142) and the side core pull (4) gradually increases in a vertical downward direction, the first moving surface (141) and the side core pull (4) gradually increase in a vertical downward direction, and the first moving surface (142) and the side core pull (4) gradually increase in a vertical downward direction. The surface (141) and the second movable surface (142) are both capable of abutting against the hole wall of the operating hole (33), and the distance between the hole wall of the operating hole (33) and the side core puller (4) gradually increases in the vertical downward direction; when the upper mold (1) falls, the first movable surface (141) drives the side core puller (4) to be inserted into the upper mold cavity (11) through the hole wall of the operating hole (33), and when the operating strip (14) is located in the accommodating groove (22), the upper core puller (13) is inserted into the side core puller (4); when the upper mold (1) is lifted, the upper core puller (13) is separated from the side core puller (4), and the second movable surface (142) is located at the operating hole (33), and the second movable surface (142) drives the side core puller (4) to be separated from the upper mold cavity (11) through the hole wall of the operating hole (33); A first pushing inclined surface (143) and a first pushing plane (144) are provided on the surface of the operating bar (14) on which the first moving surface (141) is formed, and the first pushing plane (144) is located between the first pushing inclined surface (143) and the first moving surface (141); The distance between the second moving surface (142) and the side core pull (4) gradually increases in the vertical downward direction, and the second moving surface (142) can abut against the hole wall of the operating hole (33); the first pushing plane (144) extends along the vertical direction of the operating strip (14), and the first pushing inclined surface (143) extends along the inclined direction of the first moving surface (141), and the first pushing inclined surface (143) is located on the side of the first moving surface (141) away from the ground; it also includes a mounting seat (5), the side pull strip (3) is slidably connected to the mounting seat (5), the upper mold (1) is provided with a side pull hole (12) for the side pull strip (3) to pass through, the upper mold (1) is slidably connected with a connecting strip (151), and the mounting seat (5) is provided with a connecting strip (151) on the upper mold (1). A cylinder (53) is provided for pushing the connecting bar (151), a connecting piece (16) for fixing the side draw bar (3) is provided on the connecting bar (151), a first magnet (153) is provided on the connecting bar (151), a second magnet (532) is provided on the cylinder (53), and the first magnet (153) adsorbs the second magnet (532); when the connecting bar (151) abuts against the side draw bar (3), the connecting piece (16) realizes the mutual fixation of the connecting bar (151) and the side draw bar (3), and at this time, the first magnet (153) adsorbs the second magnet (532); when the connecting bar (151) does not abut against the side draw bar (3), the cylinder (53) cannot drive the side draw bar (3) to move.

2. The injection mold for a connector housing according to claim 1, characterized in that: The side withdrawal strip (3) is provided with a side withdrawal block (34), and the side withdrawal core (4) is provided with a side withdrawal groove (42) for inserting the side withdrawal block (34); when the side withdrawal block (34) is inserted into the side withdrawal groove (42), the first dovetail hole (31) is aligned with the second dovetail hole (41).

3. The injection mold for a connector housing according to claim 1, characterized in that: The connecting member (16) comprises a connecting block (161) and a clamping block (162); the clamping block (162) is arranged on the connecting block (161); the connecting block (161) is arranged on the connecting strip (151); a connecting groove (35) for inserting the connecting block (161) is provided on the side drawer strip (3); and a clamping groove (351) for inserting the clamping block (162) is provided on the connecting groove (35); when the connecting block (161) is inserted into the connecting groove (35), the clamping block (162) is located in the clamping groove (351), and at this time, the connecting strip (151) and the side drawer strip (3) are fixed to each other.

4. The injection mold for a connector housing according to claim 1, wherein: A return spring (632) is provided on the mounting seat (5), and the return spring (632) is arranged on the side draw bar (3). The return spring (632) is used to drive the side draw bar (3) to separate from the upper cavity (11).

5. The injection mold for a connector housing according to claim 4, characterized in that: A limiting groove (51) is provided on the mounting seat (5), a limiting plate (6) is provided in the limiting groove (51), and a sliding groove (61) for the side drawer (3) to slide is provided on the limiting plate (6).

6. The injection mold for a connector housing according to claim 5, characterized in that: The limit plate (6) is provided with a through hole (63) connected to the sliding groove (61), the reset plate (631) is provided on the reset spring (632), the reset plate (631) is slidably connected to the through hole (63), and the mounting seat (5) is slidably connected to a first mounting block (731). When the limit plate (6) is mounted on the mounting seat (5), the first mounting block (731) pushes the reset plate (631) to be inserted into the sliding groove (61), and at this time, the reset spring (632) can drive the side draw bar (3) to move.

7. The injection mold for a connector housing according to claim 6, characterized in that: A rotating bar (73) is rotatably connected in the limiting groove (51), the first mounting block (731) is arranged on one end of the rotating bar (73), and the other end of the rotating bar (73) is provided with a second mounting block (732), and the second mounting block (732) is located on the falling path of the connecting bar (151); when the connecting bar (151) falls, the rotating bar (73) can drive the reset plate (631) to be inserted into the sliding groove (61) through the first mounting block (731).

8. The injection mold for a connector housing according to claim 7, characterized in that: The mounting seat (5) is provided with a placement groove (52), a placement plate (7) is slidably connected in the placement groove (52), the rotation bar (73) is rotatably connected to the placement plate (7), the placement plate (7) is provided with a fixing bar (71), and the limiting plate (6) is provided with a fixing groove (62) for inserting the fixing bar (71); when the placement plate (7) is installed in the placement groove (52), the fixing bar (71) is inserted into the fixing groove (62), and at this time, the limiting plate (6) is fixed to the mounting seat (5).

Images