Injection mold of connector shell

Abstract

The invention relates to the technical field of molds, and discloses an injection mold of a connector shell, the injection mold comprises an upper mold and a lower mold, a side drawing strip is slidably arranged on the upper mold, a first dovetail hole is formed in the side drawing strip, a side pulling core is arranged on the side drawing strip, an upper cavity for the side pulling core to be inserted is formed in the upper mold, and a second dovetail hole is formed in the lower mold. A second dovetail hole is formed in the side pulling core, a dovetail strip is arranged on the side pulling 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 pulling strip and the side pulling core are fixed to each other, if the side pulling core is damaged, a worker breaks away from the first dovetail hole and the second dovetail hole through the dovetail strip, the side pulling strip and the side pulling core are separated from each other, the worker can replace the side pulling core, the labor intensity of the worker is reduced, and the working efficiency is improved. Therefore, the side drawing strip does not need to be replaced, and the replacement cost of the injection mold is reduced.

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 through hole is provided on the connector housing. A limit block is slidably connected inside the through hole. After the terminal is inserted into the through hole, the limit block slides inside the through hole, allowing the limit block to abut against 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. A side drawing bar is slidably connected to the measuring hole. The side drawing bar is provided with a side core. When the upper mold and the lower mold are abutted, the side 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 pull is damaged and it is difficult to replace the side core pull, 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 puller 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: An injection mold for a connector shell comprises an upper mold and a lower mold, wherein a side draw bar is slidably arranged on the upper mold, a first dovetail hole is formed on the side draw bar, a side pull core is formed on the side draw bar, an upper cavity for inserting the side pull core is formed on the upper mold, a second dovetail hole is formed on the side pull core, a dovetail bar is formed on the side draw bar, and the dovetail bar is inserted into the first dovetail hole and the second dovetail hole; when the dovetail bar is inserted into the first dovetail hole and the second dovetail hole, the side draw bar and the side pull core are fixed to each other.

[0007] By adopting the above technical solution, if the side core pull is damaged, the staff can separate the side pull and the side core pull from each other by detaching the dovetail bar from the first dovetail hole and the second dovetail hole, and the staff can replace the side core pull, so that the side pull 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 fix the side pull and the side core pull to each other, so that the side pull can drive the side core pull to move.

[0008] Optionally, an operation strip and an upper core pull are provided on the upper mold, the upper core pull can be inserted into the side core pull, the side pull strip is provided with an operation hole for the operation strip to pass through, and the lower mold is provided with a receiving groove for the operation strip to be inserted, the operation 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 operation strip, the distance between the first movable surface and the side core pull gradually increases along the vertical downward direction, the distance between the second movable surface and the side core pull gradually increases along the vertical downward direction, the first movable surface and the second movable surface can both abut against the hole wall of the operation hole, and the distance between the hole wall of the operation hole and the side core pull gradually increases along the vertical downward direction; when the upper mold falls, the first movable surface drives the side core pull to be inserted into the upper mold cavity through the hole wall of the operation hole, and when the operation strip is located in the receiving groove, the upper core pull is inserted into the side core pull; when the upper mold is lifted, the upper core pull is separated from the side core pull, the second movable surface is located at the operation hole, and the second movable surface drives the side core pull to be separated from the upper mold cavity through the hole wall of the operation hole.

[0009] By adopting the above technical solution, when the upper mold falls, the upper mold drives the operating strip to move, allowing the operating strip to move in the operating hole, and the first moving surface drives the side core pull to be inserted into the upper cavity through the hole wall of the operating hole, and then the upper mold continues to move to allow the upper core pull to fall, and at this time the operating strip is inserted into the accommodating groove; when the upper mold is lifted, the upper mold drives the upper core pull to be lifted, so that the upper core pull is separated from the side core pull, and then the upper mold continues to be lifted, and the operating strip moves from the accommodating groove to the operating hole, allowing the second moving surface to drive the side core pull to be separated from the upper cavity through the hole wall of the operating hole, so that the side core pull can be separated from the upper cavity, thereby realizing the separation of the connector housing from the upper cavity.

[0010] 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.

[0011] 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.

[0012] 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 attracts the second magnet; when the connecting strip abuts against 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 attracts the second magnet; when the connecting strip does not abut against the side drawer, the cylinder cannot drive the side drawer to move.

[0013] By adopting the above technical solution, when the upper mold falls, the connecting strip abuts against the mounting seat, and the cylinder is started 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 is started 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 the side core pull-out will not be damaged even if the upper mold falls, thereby 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 to leave the upper mold cavity through the connecting piece.

[0014] 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, the side draw bar is provided with a connecting groove for inserting the connecting block, and the connecting groove is provided with a clamping groove for inserting the clamping block; 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 draw bar are fixed to each other.

[0015] 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 strip are fixed to each other, and the connecting strip can drive the side drawer strip to move; at the same time, when the connecting strip and the side drawer strip are not aligned, the connecting strip is difficult to fall, and the staff can directly observe that the connecting strip and the side drawer strip are not aligned, so that the staff can adjust the position of the connecting strip or the side drawer strip in time.

[0016] 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.

[0017] By adopting the above technical scheme, if the staff accidentally touches the cylinder switch and makes the cylinder retract, the side pull-out bar 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 bar 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 bar, thereby avoiding the lack of reset power for 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 bar to reset, increase the reset power of the side pull-out bar, and accelerate the separation of the side core pull and the side pull-out bar from the upper cavity.

[0018] 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.

[0019] 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, structures such as the cylinder and the mounting seat do not need to be replaced, reducing the cost of replacement.

[0020] 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 in the through hole, and a first mounting block is slidably connected on 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, and at this time the reset spring can drive the side draw bar to move.

[0021] 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.

[0022] 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.

[0023] 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 draw bar; through the falling of the upper film, the staff observes whether the side draw bar 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 draw bar is not completely reset. At this time, the staff can install the limit plate in time.

[0024] Optionally, a placement groove is provided on the mounting seat, a placement plate is slidably connected in 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 on the mounting seat.

[0025] By adopting the above technical solution, the placing plate is installed in the placing groove. When the fixing bar is inserted into the fixing groove, the fixing bar can limit the limiting plate, so that the limiting plate can be fixed on the mounting seat, avoiding the separation of the limiting plate and the mounting seat, so that the limiting plate can be stably located on the mounting seat, reducing the possibility of the limiting plate moving from the mounting seat.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: If the side core pull is damaged, the staff can separate the side pull and the side core pull from each other by detaching the dovetail bar from the first dovetail hole and the second dovetail hole, and the staff can replace the side core pull, so that the side pull 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, so that the dovetail bar can fix the side pull and the side core pull to each other, so that the side pull can drive the side core pull to move.

[0027] When the upper mold falls, the upper mold drives the operating strip to move, allowing the operating strip to move in the operating hole, and the first moving surface drives the side core pull to be inserted into the upper cavity through the hole wall of the operating hole, and then the upper mold continues to move to allow the upper core pull to fall, and at this time the operating strip is inserted into the accommodating groove; when the upper mold is lifted, the upper mold drives the upper core pull to be lifted, so that the upper core pull is separated from the side core pull, and then the upper mold continues to be lifted, and the operating strip moves from the accommodating groove to the operating hole, allowing the second moving surface to drive the side core pull to be separated from the upper cavity through the hole wall of the operating hole, so that the side core pull can be separated from the upper cavity, thereby realizing the separation of the connector housing from the upper cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of Example 1; Figure 2 is along Figure 1 Partial cross-sectional view along line AA; Figure 3 It is an exploded schematic diagram highlighting the side core pulling in Example 1; Figure 4 is along Figure 2 A magnified schematic diagram of part B; Figure 5 is a schematic structural diagram of Example 2; Figure 6 is along Figure 5 Partial cross-sectional view of the CC line; Figure 7 It is a schematic diagram of the structure of the upper core pulling in Example 2.

[0029] Figure numerals: 1, upper mold; 11, upper mold cavity; 12, side draw hole; 13, upper core; 14, operating strip; 141, first moving surface; 142, second moving surface; 143, first push inclined surface; 144, first push plane; 15, connecting plate; 151, connecting strip; 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 draw strip; 31, first dovetail hole; 32, dovetail strip; 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 pull-out core; 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

[0030] The following is combined with Figure 1-7 This application is described in further detail. Example

[0031] This embodiment discloses an injection mold for a connector housing. Figure 1 and Figure 2 , an injection mold for a connector housing, comprising an upper mold 1 and a lower mold 2, wherein 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.

[0032] Reference Figure 2 and Figure 3 , two side draw holes 12 are provided on the upper mold 1, and a side draw bar 3 is slidably connected in the side draw holes 12, and a side draw core 4 is provided on the side draw bar 3. A plurality of second dovetail holes 41 are provided on the surface of the side draw core 4, and the second dovetail holes 41 extend along the height direction of the side draw core 4. A plurality of first dovetail holes 31 are provided on the surface of the side draw bar 3, and the first dovetail holes 31 extend along the height direction of the side draw bar 3. The plurality of first dovetail holes 31 are distributed in an array along the width distribution of the side draw bar 3, and the plurality of second dovetail holes 41 are distributed in an array along the width direction of the side draw core 4.

[0033] Reference Figure 3 The side draw bar 3 is provided with a plurality of dovetail bars 32, and the dovetail bars 32 can be inserted into the first dovetail hole 31 and the second dovetail hole 41. When the dovetail bars 32 are inserted into the first dovetail hole 31 and the second dovetail hole 41, the side draw bar 3 and the side core 4 are fixed to each other.

[0034] Reference Figure 4 , two upper core pulls 13 are fixedly connected to the upper mold 1, and a through hole for inserting the upper core pulls 13 is provided on the side core pulls 4. When the upper mold 1 and the lower mold 2 are closed, the upper core pulls 13 are located in the upper cavity 11. An operating strip 14 is fixedly connected to the upper mold 1, and the operating strip 14 extends in the vertical direction. An operating hole 33 for inserting the operating strip 14 is provided on the side pull strip 3, and two accommodating grooves 22 are provided on the lower mold 2, and the accommodating grooves 22 are provided for inserting the operating strip 14.

[0035] Reference Figure 4 The operation bar 14 is provided with a first moving surface 141 and a second moving surface 142, which are respectively located at two different sides of the operation bar 14, that is, the first moving surface 141 is located at a side of the operation bar 14 close to the side core pull 4, and the second moving surface 142 is located at a side of the operation bar 14 away from the side core pull 4. The surface of the operation bar 14 where the first moving surface 141 is provided is provided with a first push inclined surface 143 and a first push plane 144, and the first push plane 144 is located between the first push inclined surface 143 and the first moving surface 141.

[0036] 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 against the hole 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 against the hole wall of the operating hole 33. The first push plane 144 extends in the vertical direction of the operating strip 14, and the first push inclined surface 143 extends in the inclined direction of the first moving surface 141, and the first push inclined surface 143 is located on the side of the first moving surface 141 away from the ground.

[0037] Reference Figure 4 A 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.

[0038] Reference Figure 4First, the upper mold 1 falls, and the operating strip 14 is inserted into the operating hole 33 of the side core pull 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 core pull 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, 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 pull 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 pull 4 to move, and the upper core pull 13 is inserted into the through hole of the side core pull 4 to realize the combination of the upper core pull 13 and the side core pull 4.

[0039] 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 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.

[0040] Reference Figure 4 When the operating strip 14 is inserted into the accommodating groove 22, the second moving surface 142 only contacts the groove wall of the accommodating 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, so that the operating strip 14 drives the side core 4 to move.

[0041] Reference Figure 3 A 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 direction of the side draw bar 3. A plurality of side draw grooves 42 are provided on the side core pull 4, and the plurality of side draw grooves 42 are arranged in an array along the length direction of the side core pull 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 core pull 4 are pre-fixed, and at this time, the first dovetail hole 31 is aligned with the second dovetail hole 41.

[0042] 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 abuts against the first operating inclined surface 331, and the first movable surface 141 drives the side core pull 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, so as to realize the mold closing of the upper core pull 13 and the side core pull 4. Example

[0043] Reference Figure 5 and Figure 6 The difference between this embodiment and the embodiment 1 is that it further comprises two mounting seats 5, and a limiting groove 51 is provided on the surface of the mounting seat 5, and a limiting plate 6 is provided in the limiting groove 51, and a sliding groove 61 is provided on the limiting plate 6 for the side pull strip 3 to slide. The sliding grooves 61 of different limiting plates 6 have different sizes to adapt to side pull cores 4 of different sizes.

[0044] Reference Figure 5 A placement groove 52 is provided on the side of the mounting seat 5, the placement groove 52 is connected to the limiting groove 51, a placement plate 7 is provided in the placement groove 52, and a fixing bar 71 is fixedly connected to the placement plate 7. A fixing groove 62 for inserting the fixing bar 71 is provided on the side of the limiting plate 6. When the fixing bar 71 is inserted into the fixing groove 62, the placement plate 7 is located in the placement groove 52, and the limiting plate 6 is fixed in the limiting groove 51.

[0045] Reference Figure 5 and Figure 6 , two cylinders 53 are fixedly connected to the mounting seat 5, and a driving plate 531 is fixedly connected to the driving shaft of the cylinder 53, and the cylinder 53 drives the driving plate 531 to move in the direction of the side draw strip 3. Two connecting plates 15 are fixedly connected to the side of the upper mold 1, and a connecting strip 151 is provided on the connecting plate 15. A groove 152 is provided on the surface of the connecting strip 151, and the groove 152 is for the connecting plate 15 to be inserted, and the groove 152 extends along the length direction of the connecting strip 151. That is, the connecting strip 151 can slide on the connecting plate 15 in the horizontal direction, and then the connecting plate 15 can move in the vertical direction in the groove 152. The sliding path of the connecting strip 151 intersects with the moving path of the driving plate 531.

[0046] 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, so as to realize 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, so that the upper core pull 13 is separated from the side core pull 4, and the connecting strip 151 is still against the mounting seat 5.

[0047] Reference Figure 6 The second magnet 532 is fixedly connected to the surface of the driving plate 531 close to the side draw bar 3, and the first magnet 153 is fixedly connected to the surface of the connecting bar 151 close to 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.

[0048] Reference Figure 5 and Figure 6, a connecting member 16 is provided on the connecting strip 151, and the connecting member 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, so that the side draw bar 3 and the connecting strip 151 are fixed to each other, so that the connecting strip 151 can drive the side draw bar 3 to move.

[0049] Reference Figure 5 and Figure 6 When the upper mold 1 falls, the connecting strip 151 is located between the side draw-in strip 3 and the driving plate 531. At this time, the connecting block 161 is inserted into the connecting groove 35 to realize the mutual fixation of the connecting strip 151 and the side draw-in strip 3, and the second magnet 532 abuts against the first magnet 153, that is, the cylinder 53 can push the connecting strip 151 to move, so that the side draw-in core 4 is inserted into the side draw-in hole 12.

[0050] Reference Figure 6 When the cylinder 53 retreats, the second magnet 532 attracts the first magnet 153, so that the driving plate 531 drives the connecting strip 151 to move, so that the connecting strip 151 can drive the side core 4 to leave the side withdrawal hole 12. If the upper mold 1 does not fall, the cylinder 53 is started by mistake, and the length of the connecting strip 151 is greater than the moving distance of the driving plate 531, so that the driving plate 531 does not abut the side withdrawal strip 3, and the side core 4 will not be inserted into the side withdrawal hole 12.

[0051] Reference Figure 5 and Figure 6 The 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 on the surface of the reset plate 631. A movable plate 36 is fixedly connected on the surface of the side draw bar 3 close to the sliding groove 61, and 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 an accidental touch, after the upper mold 1 is lifted, the side pull core 4 can be disengaged from the side pull hole 12, and the return spring 632 drives the side pull strip 3 and the side pull core 4 to disengage from the side pull hole 12.

[0052] Reference Figure 6, a rotation groove 72 is provided on the placement plate 7, and a rotation bar 73 is rotatably connected in the rotation groove 72. A first mounting block 731 is fixedly connected to one end of the rotation bar 73, and a second mounting block 732 is fixedly connected to the other end of the rotation bar 73. The weight of the first mounting block 731 is greater than the weight of the second mounting block 732, and the first mounting block 731 and the second mounting block 732 both extend in a length direction perpendicular to the rotation bar 73. The first mounting block 731 can be inserted into the through hole 63, and the second mounting block 732 is located on the falling path of the connecting bar 151.

[0053] Reference Figure 6 When the connecting strip 151 falls onto the mounting seat 5, the connecting strip 151 abuts against the second mounting block 732, allowing the second mounting block 732 to drive the rotating strip 73 to rotate, so that the first mounting block 731 is inserted into the through hole 63, and the first mounting block 731 drives the reset plate 631 to move from the through hole 63 to the sliding groove 61, and the reset spring 632 drives the moving plate 36 to move, so that the side withdrawal strip 3 is disengaged from the side withdrawal hole 12. At this time, the staff can know whether the placement plate 7 and the limit plate 6 are installed in place by directly observing whether the side withdrawal strip 3 moves.

[0054] 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 draw-out 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 draw-out strip 3 to move through the connecting block 161 and the clamping block 162, so that the side draw-out core 4 is inserted into the side draw-out hole 12.

[0055] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words 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. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" 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.

[0056] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope 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 slidably arranged 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.

2. The injection mold of a connector housing according to claim 1, characterized in that: 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, and the first moving surface (141) and the side core pull (4) gradually increase in a vertical downward direction. The first movable 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).

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

4. The injection mold of a connector housing according to claim 1, characterized in that: The machine tool further comprises a mounting seat (5), the side draw bar (3) is slidably connected to the mounting seat (5), the upper mold (1) is provided with a side draw hole (12) for the side draw bar (3) to pass through, the upper mold (1) is slidably connected with a connecting bar (151), the mounting seat (5) is provided with a cylinder (53) for pushing the connecting bar (151), the connecting bar (151) is provided with a connecting piece (16) for fixing the side draw bar (3), and the connecting bar (151) is provided with a first magnet (15 3), a second magnet (532) is provided on the cylinder (53), and the first magnet (153) attracts the second magnet (532); when the connecting bar (151) abuts against the side draw bar (3), the connecting member (16) realizes the mutual fixation of the connecting bar (151) and the side draw bar (3), and at this time, the first magnet (153) attracts 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.

5. The injection mold of the connector housing according to claim 4, 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 the connecting block (161) to be inserted is provided on the side draw bar (3); a clamping groove (351) for the clamping block (162) to be inserted 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 draw bar (3) are fixed to each other.

6. The injection mold of a connector housing according to claim 4, characterized in that: The mounting seat (5) is provided with a return spring (632), 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).

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

8. The injection mold of the connector housing according to claim 7, 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 in the through hole (63), and the mounting seat (5) is slidably connected with 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.

9. The injection mold of a connector housing according to claim 8, 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); the other end of the rotating bar (73) is provided with a second mounting block (732); 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).

10. The injection mold of the connector housing according to claim 9, 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 rotationally connected to the placement plate (7), a fixing bar (71) is provided on the placement plate (7), and a fixing groove (62) for inserting the fixing bar (71) is provided on the limiting plate (6); 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 on the mounting seat (5).

Images