CN217862603U

CN217862603U - Thread side injection mold of loosing core

Info

Publication number: CN217862603U
Application number: CN202221436742.5U
Authority: CN
Inventors: 廖建生
Original assignee: Shenzhen Haojingda Industrial Co ltd
Current assignee: Shenzhen Haojingda Industrial Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-22
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a thread side core-pulling injection mold, which comprises a front mold, a rear mold, a front mold core and a rear mold core, wherein the front mold core and the rear mold core jointly enclose a cavity, and one side of the rear mold core is provided with a first inclined core-pulling mechanism which can be separated from an injection molding piece when the mold is opened; and a threaded rod is arranged on the other side of the rear mold core, and a side core-pulling driving mechanism for driving the threaded rod to rotate and stretch into or keep away from the cavity is arranged on the front mold. According to the thread side core-pulling injection mold, the side core-pulling driving mechanism is arranged on the front mold to drive the threaded rod to rotate and stretch into or far away from the cavity, so that the inclined core-pulling action and the thread core-pulling action can be simultaneously completed when the mold is opened; the whole structure is simple, the occupied space is small, and the manufacturing cost is low.

Description

Thread side injection mold of loosing core

Technical Field

The utility model relates to an injection mold technical field especially relates to a screw thread side injection mold of loosing core.

Background

The injection mold is a common mold for molding plastic products, and the plastic products with various forms can be molded through the injection mold so as to meet various requirements of people. Due to various process requirements of plastic products, in some injection molding products, an internal thread structure is required to be arranged on the products for convenience in use, a thread side core-pulling structure is generally required to be added in a mold core, and the molded products are subjected to core-pulling and ejection actions by means of the side core-pulling mechanism in the mold opening process. At present, in an injection mold simultaneously provided with a through hole and an internal thread structure on a product, an inclined guide pillar is generally adopted to perform side core pulling to form the through hole in the prior art, and a motor thread-removing mechanism is arranged in the direction of a side hole with an internal thread, so that the structure occupies a large space, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provides a novel thread side core-pulling injection mold.

In order to solve the technical problem, the utility model discloses a technical scheme be: a thread side core-pulling injection mold comprises a front mold, a rear mold, a front mold core and a rear mold core, wherein the front mold core and the rear mold core jointly enclose a cavity, and a first inclined core-pulling mechanism capable of being separated from an injection molding piece during mold opening is arranged on one side of the rear mold core; and a threaded rod is arranged on the other side of the rear mold core, and a side core-pulling driving mechanism for driving the threaded rod to rotate and stretch into or keep away from the cavity is arranged on the front mold.

Furthermore, the first inclined core pulling mechanism comprises a first guide rod fixedly arranged on the front die and a first sliding assembly slidably arranged on the rear die, and the first guide rod is slidably connected with the first sliding assembly.

Further, the first sliding assembly comprises a first slider seat, a mounting block and a first core rod, and the first slider seat is arranged on the rear die in a sliding manner; the mounting block is detachably connected to the first slider seat; the first core rod penetrates through the mounting block and extends into the cavity.

The threaded rod is a hollow rod, the second core rod is detachably mounted in the threaded rod, and the second core rod extends into the cavity.

The side core pulling driving mechanism comprises a second guide rod and a rack which are fixedly arranged on the front die; the second sliding assembly is arranged on the rear die in a sliding mode, and the second guide rod is connected with the second sliding assembly in a sliding mode; the threaded rod is inserted on the second sliding assembly in a rotating mode, the transmission mechanism is arranged on one side of the rear die, and the rack drives the threaded rod to rotate through the transmission mechanism.

Furthermore, the transmission mechanism comprises a mounting seat, a first gear, a second gear and a gear shaft which are rotatably arranged on the mounting seat, the mounting seat is fixedly arranged on one side of the rear mold, and the threaded rod is rotatably connected to the mounting seat; the rack is meshed with the gear shaft; the first gear is coaxially and fixedly connected with the gear shaft, and the second gear is sleeved at one end of the threaded rod, which is far away from the cavity, and is meshed with the first gear; the mounting seat is fixedly provided with a copper sleeve, and the threaded rod is sleeved with the copper sleeve.

Furthermore, an inclined ejecting piece is fixedly connected to the front die; a first inclined plane is arranged on one side, away from the rear mold core, of the second sliding assembly, and the lower end of the first inclined plane inclines towards the outer side; the inclined ejecting piece is provided with a second inclined surface corresponding to the first inclined surface, and the second inclined surface can be in sliding contact with the first inclined surface.

Furthermore, the device also comprises a matched template, wherein the matched template is detachably connected to one surface, close to the second sliding assembly, of the inclined top piece, and a second inclined surface is formed on one surface, close to the second sliding assembly, of the matched template.

Furthermore, the second sliding assembly comprises a limiting block and a second sliding block seat which are detachably connected, and the first inclined plane is arranged on one side, far away from the limiting block, of the second sliding block seat; the threaded rod runs through stopper and sliding seat set up, just be equipped with external screw thread portion on the threaded rod, be equipped with on the stopper with external screw thread portion complex internal thread portion.

Furthermore, the second sliding assembly further comprises a sleeve, a counter bore is formed in one surface, close to the second sliding block seat, of the limiting block, the sleeve is arranged in the counter bore, and an annular boss matched with the counter bore is arranged on the sleeve; the threaded rod penetrates through the sleeve, and the inner peripheral surface of the sleeve is provided with the internal thread part.

The beneficial effects of the utility model reside in that: according to the threaded side core-pulling injection mold, the side core-pulling driving mechanism is arranged on the front mold to drive the threaded rod to rotate and extend into or far away from the cavity, so that the inclined core-pulling and the threaded core-pulling actions can be simultaneously completed when the mold is opened; the whole structure is simple, the occupied space is small, and the manufacturing cost is low.

Drawings

Fig. 1 is a cross-sectional view of a screw thread side core-pulling injection mold according to a first embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of a screw thread side core-pulling injection mold according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of a first sliding assembly in the screw thread side core-pulling injection mold according to the first embodiment of the present invention;

fig. 4 is a schematic structural view of a transmission mechanism in a screw thread side core-pulling injection mold according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of a second sliding assembly and an inclined top member in the screw thread side core-pulling injection mold according to the first embodiment of the present invention.

Description of reference numerals:

1. a front mold; 11. a side core-pulling driving mechanism; 111. a second guide bar; 112. a rack; 12. a slanted ejecting member; 13. preparing a template; 131. a second inclined plane;

2. a rear mold;

3. a front mold core;

4. a rear mold core; 41. a threaded rod; 411. a second core bar;

5. a first diagonal core-pulling mechanism; 51. a first guide bar; 52. a first slide assembly; 521. a first slider seat; 522. mounting a block; 523. a first core bar;

6. a second slide assembly; 61. a limiting block; 62. a second slider seat; 621. a first inclined plane; 63. a sleeve; 631. an internal thread portion;

7. a transmission mechanism; 71. a mounting seat; 72. a first gear; 73. a second gear; 74. a gear shaft; 75. and (4) a copper sleeve.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 5, a thread side core-pulling injection mold comprises a front mold 1, a rear mold 2, a front mold core 3 and a rear mold core 4, wherein the front mold core 3 and the rear mold core 4 together enclose a cavity, and one side of the rear mold core 4 is provided with a first inclined core-pulling mechanism 5 which can be separated from an injection molding piece when the mold is opened; the other side of the rear mold core 4 is provided with a threaded rod 41, and the front mold 1 is provided with a side core-pulling driving mechanism 11 for driving the threaded rod 41 to rotate and extend into or far away from the mold cavity.

From the above description, the beneficial effects of the present invention are: according to the thread side core-pulling injection mold, the side core-pulling driving mechanism 11 is arranged on the front mold 1 to drive the threaded rod 41 to rotate and stretch into or far away from a cavity, so that the mold can simultaneously complete inclined core-pulling and thread core-pulling actions when the mold is opened; the whole structure is simple, the occupied space is small, and the manufacturing cost is low.

Further, the first inclined core pulling mechanism 5 comprises a first guide rod 51 fixedly arranged on the front mold 1 and a first sliding assembly 52 slidably arranged on the rear mold 2, and the first guide rod 51 is slidably connected with the first sliding assembly 52.

From the above description, the first inclined core-pulling mechanism 5 has a simple structure, and is beneficial to the production and manufacturing of the thread side core-pulling injection mold.

Further, the first sliding assembly 52 includes a first slider seat 521, a mounting block 522 and a first core rod 523, wherein the first slider seat 521 is slidably disposed on the rear mold 2; the mounting block 522 is detachably connected to the first slider seat 521; the first core pin 523 extends through the mounting block 522 and into the mold cavity.

As can be seen from the above description, the first core rod 523 is inserted into the mounting block 522 to prevent the exposed portion of the first core rod 523 from being long, and thus the first core rod 523 is easily bent or even broken by external force.

Further, the mold further comprises a second core rod 411, the threaded rod 41 is a hollow rod, the second core rod 411 is detachably mounted in the threaded rod 41, and the second core rod 411 extends into the mold cavity.

As can be seen from the above description, the threaded rod 41 and the second core rod 411 cooperate to form an annular boss in the side hole of the injection-molded part with the internal thread.

Further, the side core pulling mechanism comprises a second sliding assembly 6 and a transmission mechanism 7, wherein the side core pulling driving mechanism 11 comprises a second guide rod 111 and a rack 112 which are fixedly arranged on the front mold 1; the second sliding assembly 6 is slidably arranged on the rear mold 2, and the second guide rod 111 is slidably connected with the second sliding assembly 6; the threaded rod 41 is inserted in the second sliding assembly 6 in a rotating mode, the transmission mechanism 7 is arranged on one side of the rear die 2, and the rack 112 drives the threaded rod 41 to rotate through the transmission mechanism 7.

As can be seen from the above description, when the mold is opened, the rack 112 can drive the threaded rod 41 to rotate, and the second guide rod 111 drives the second sliding component 6 to slide, so as to drive the threaded rod 41 to move away from the cavity; the threaded rod 41 is simple in driving mode, and production and manufacturing of the threaded side core-pulling injection mold are facilitated.

Further, the transmission mechanism 7 includes an installation base 71, and a first gear 72, a second gear 73 and a gear shaft 74 which are rotatably disposed on the installation base 71, the installation base 71 is fixedly disposed on one side of the rear mold 2, and the threaded rod 41 is rotatably connected to the installation base 71; the rack 112 is meshed with the gear shaft 74; the first gear 72 is coaxially and fixedly connected with the gear shaft 74, and the second gear 73 is sleeved at one end of the threaded rod 41 far away from the cavity and meshed with the first gear 72; a copper sleeve 75 is fixedly arranged on the mounting seat 71, and the threaded rod 41 is sleeved with the copper sleeve 75.

From the above description, the transmission mechanism 7 has a simple structure, and the worker can adjust the transmission ratio between the rack 112 and the threaded rod 41 by changing the tooth number ratio among the first gear 72, the second gear 73 and the gear shaft 74, so as to greatly shorten the stroke of the rack 112, further reduce the mold volume and reduce the production cost.

Further, an inclined top piece 12 is fixedly connected to the front die 1; a first inclined surface 621 is arranged on one side of the second sliding component 6 away from the rear mold core 4, and the lower end of the first inclined surface 621 inclines towards the outside; the inclined top 12 is provided with a second inclined surface 131 corresponding to the first inclined surface 621, and the second inclined surface 131 slidably abuts against the first inclined surface 621.

As will be understood from the above description, the lifter 12 is used to drive the second slide assembly 6 to slide back toward the cavity when the mold is closed.

Further, the structure comprises a matching template 13, wherein the matching template 13 is detachably connected to one surface, close to the second sliding assembly 6, of the inclined top part 12, and the second inclined surface 131 is formed on one surface, close to the second sliding assembly 6, of the matching template 13.

From the above description, the staff only need to dismantle the die plate 13 and polish or change, can guarantee the roughness and the inclination of second inclined plane 131, and then guarantee that second sliding assembly 6 can move to predetermined position after the mould compound die.

Further, the second sliding assembly 6 comprises a limit block 61 and a second slider seat 62 which are detachably connected, and the first inclined surface 621 is arranged on one side of the second slider seat 62 away from the limit block 61; threaded rod 41 runs through stopper 61 and sliding seat set up, just be equipped with external screw thread portion on the threaded rod 41, be equipped with on the stopper 61 with external screw thread portion complex internal thread portion 631.

It can be known from the above description that the limiting block 61 can drive the threaded rod 41 to extend into or keep away from the cavity in the sliding process through the internal thread part 631 matched with the threaded rod 41, and meanwhile, the threaded rod 41 can be ensured not to be influenced relative to the rotating process of the limiting block 61.

Further, the second sliding assembly 6 further includes a sleeve 63, a counter bore is provided on one surface of the limiting block 61 close to the second slider seat 62, the sleeve 63 is provided in the counter bore, and an annular boss matched with the counter bore is provided on the sleeve 63; the threaded rod 41 penetrates the sleeve 63, and the inner circumferential surface of the sleeve 63 is provided with the internal threaded portion 631.

From the above description, after the internal thread portion 631 receives a certain degree of wear, the staff can change the damaged sleeve 63, ensure that the limiting block 61 has a good driving effect on the threaded rod 41, and ensure that the threaded rod 41 can extend into the preset position in the cavity or completely separate from the cavity.

Example one

Referring to fig. 1 to 5, a first embodiment of the present invention is: a thread side core-pulling injection mold comprises a front mold 1, a rear mold 2, a front mold core 3 and a rear mold core 4, wherein the front mold core 3 and the rear mold core 4 jointly enclose a cavity, and one side of the rear mold core 4 is provided with a first inclined core-pulling mechanism 5 which can be separated from an injection molding piece when the mold is opened; the other side of the rear mold core 4 is provided with a threaded rod 41, and the front mold 1 is provided with a side core-pulling driving mechanism 11 for driving the threaded rod 41 to rotate and extend into or far away from the mold cavity. Specifically, the mold of this embodiment is designed to have a one-mold two-cavity layout, and the casting mode is a cold runner side casting mode. The threaded rod 41 is used for forming a blind hole with internal threads on an injection molding piece, the inclined core-pulling mechanism is used for forming a first through hole communicated with the blind hole on the injection molding piece, and the length direction of the first through hole is parallel to the length direction of the threaded rod 41; each injection molding part is provided with two first through holes. Front mould 1 includes fixed die plate, cover half fixed plate and runner cover, and the runner cover is connected and is located between fixed die plate and the cover half fixed plate with fixed die plate screw, and the runner cover top surface corresponds two die cavities and is equipped with two first counter sink, is equipped with an ejector pin in every first counter sink of runner cover, and the ejector pin runs through the cover half fixed plate and stretches into in the die cavity to intercommunication of shaping on the injection molding the second through-hole of blind hole, the length direction perpendicular to of second through-hole the length direction of threaded rod 41.

As shown in fig. 2 and 3, the first core-pulling mechanism 5 includes a first guide rod 51 fixed on the front mold 1 and a first sliding assembly 52 slidably disposed on the rear mold 2, and the first guide rod 51 is slidably connected to the first sliding assembly 52. Specifically, in the present embodiment, the sliding direction of the first sliding component 52 is parallel to the length direction of the threaded rod 41. Each cavity is correspondingly provided with a first slide assembly 52.

As shown in fig. 3, the first sliding assembly 52 includes a first slider seat 521, a mounting block 522 and a first core rod 523, wherein the first slider seat 521 is slidably disposed on the rear mold 2; the mounting block 522 is detachably connected to the first slider seat 521; the first core pin 523 extends through the mounting block 522 and into the mold cavity. Specifically, in this embodiment, each mounting block 522 is provided with two first core bars 523. The mounting block 522 is screwed to the first slider seat 521, and two second countersunk holes are provided on the contact surface of the mounting block 522 and the first slider, and each second countersunk hole is provided with a first core rod 523.

As shown in fig. 1, the thread side core-pulling injection mold further includes a second core rod 411, the threaded rod 41 is a hollow rod, the second core rod 411 is detachably mounted in the threaded rod 41, and the second core rod 411 extends into the cavity. Specifically, a third counter bore is formed in the middle of the threaded rod 41, the second core rod 411 is arranged in the third counter bore, a thread is arranged at one end, away from the cavity, of the third counter bore, and a blocking piece used for abutting against the second core rod 411 is further connected in the third counter bore in a threaded manner.

As shown in fig. 1 and 2, the threaded side core pulling injection mold further includes a second sliding assembly 6 and a transmission mechanism 7, and the side core pulling driving mechanism 11 includes a second guide rod 111 and a rack 112 fixedly arranged on the front mold 1; the second sliding assembly 6 is slidably arranged on the rear die 2, and the second guide rod 111 is slidably connected with the second sliding assembly 6; the threaded rod 41 is inserted on the second sliding assembly 6 in a rotating mode, the transmission mechanism 7 is arranged on one side of the rear die 2, and the rack 112 drives the threaded rod 41 to rotate through the transmission mechanism 7. Specifically, one end of the rack 112 is fixedly connected with the fixed mold plate, and the length direction of the rack 112 is perpendicular to the length direction of the threaded rod 41.

As shown in fig. 4, the transmission mechanism 7 includes a mounting seat 71, and a first gear 72, a second gear 73 and a gear shaft 74 rotatably disposed on the mounting seat 71, the mounting seat 71 is fixedly disposed on one side of the rear mold 2, and the threaded rod 41 is rotatably connected to the mounting seat 71; the rack 112 is meshed with the gear shaft 74; the first gear 72 is coaxially and fixedly connected with the gear shaft 74, and the second gear 73 is sleeved at one end of the threaded rod 41 far away from the cavity and meshed with the first gear 72; a copper sleeve 75 is fixedly arranged on the mounting seat 71, and the threaded rod 41 is sleeved with the copper sleeve 75.

Specifically, in this embodiment, the mounting seat 71 is formed by connecting two mounting plates by screws, a mounting cavity is formed between the two mounting plates, the first gear 72, the second gear 73 and the gear shaft 74 are all rotatably disposed in the mounting cavity, and the rack 112 is disposed through the mounting cavity. The number of teeth of the first gear 72 is larger than that of the gear shaft 74. The sides of the first gear 72 and the gear shaft 74 that are away from each other are respectively provided with a bearing to make the first gear 72 and the gear shaft 74 rotate smoothly. Two copper sleeves 75 are respectively arranged on two sides of the second gear 73. The threaded rod 41 is slidable relative to the second gear 73 but not rotatable relative to the second gear 73.

As shown in fig. 2 and 5, a slanted ejecting part 12 is also fixedly connected to the front mold 1; a first inclined surface 621 is arranged on one side of the second sliding component 6 away from the rear mold core 4, and the lower end of the first inclined surface 621 inclines towards the outside; the inclined top 12 is provided with a second inclined surface 131 corresponding to the first inclined surface 621, and the second inclined surface 131 slidably abuts against the first inclined surface 621. Specifically, each of the first slide module 52 and the second slide module 6 is provided with a corresponding slanted ejecting member 12. The lower end of the middle part of the slanted ejecting member 12 slidably abutting against the second sliding member 6 is further provided with a clearance groove corresponding to the threaded rod 41, and the threaded rod 41 penetrates through the clearance groove.

As shown in fig. 5, the screw-thread side core-pulling injection mold further includes a matching mold plate 13, the matching mold plate 13 is detachably connected to one surface of the inclined top 12 close to the second sliding assembly 6, and the second inclined surface 131 is formed on one surface of the matching mold plate 13 close to the second sliding assembly 6. Specifically, two sides of the clearance groove are respectively connected with a matching template 13 through screws, and one surface, close to the second sliding assembly 6, of the matching template 13 protrudes out of the surface of the inclined top part 12.

As shown in fig. 1 and 5, the second sliding assembly 6 includes a stop block 61 and a second slider seat 62 that are detachably connected, and a side of the second slider seat 62 away from the stop block 61 is provided with the first inclined surface 621; the threaded rod 41 runs through the limiting block 61 and the sliding seat are arranged, the threaded rod 41 is provided with an external thread part, and the limiting block 61 is provided with an internal thread part 631 matched with the external thread part. The second sliding assembly 6 further comprises a sleeve 63, a counter bore is formed in one surface, close to the second sliding block seat 62, of the limiting block 61, the sleeve 63 is arranged in the counter bore, and an annular boss matched with the counter bore is arranged on the sleeve 63; the threaded rod 41 penetrates the sleeve 63, and the internal thread portion 631 is provided on the inner circumferential surface of the sleeve 63. Specifically, the limiting block 61 is connected with a second sliding seat through a screw, and a copper sleeve 75 matched with the threaded rod 41 is arranged in the second sliding seat. Be equipped with spacing shoulder on the threaded rod 41, during the compound die, spacing shoulder will slide along copper sheathing 75, finally contradict in the one side that the die cavity was kept away from to sleeve 63 to prescribe a limit to the stroke of threaded rod 41, ensure that threaded rod 41 stretches into the preset position in the die cavity.

When the mold is opened, the second guide rod 111 drives the second sliding assembly 6 to slide in the direction away from the cavity, and then the internal thread portion 631 on the limiting block 61 drives the threaded rod 41 to slide in the direction away from the cavity, and meanwhile, the threaded rod 41 rotates relative to the limiting block 61 under the driving of the rack 112 and the transmission mechanism 7; the phenomenon of retardation of the demolding process of the threaded rod 41 caused by the separation of the limit block 61 from the threaded rod 41 can be prevented only by ensuring that the moving distance of the threaded rod 41 relative to the limit block 61 after the mold opening is smaller than the matching length of the external threaded part and the internal threaded part 631 by rotating the external threaded part. The sliding of the threaded rod 41 driven by the mating internal thread 631 and external thread is easier to machine, assemble and maintain than the conventional annular boss.

To sum up, the side core-pulling injection mold for the thread provided by the utility model has the advantages that the side core-pulling driving mechanism is arranged on the front mold to drive the threaded rod to rotate and stretch into or away from the cavity, so that the mold can simultaneously complete the inclined core-pulling action and the thread core-pulling action when the mold is opened; the whole structure is simple, the occupied space is small, and the manufacturing cost is low. The first core rod is arranged on the mounting block in a penetrating mode, so that the exposed part of the first core rod can be prevented from being long, and the first core rod is easy to bend or even break under the action of external force. The transmission mechanism is simple in structure, and the transmission ratio of the rack and the threaded rod can be adjusted by changing the tooth number ratio among the first gear, the second gear and the gear shaft, so that the stroke of the rack is greatly shortened, the size of the die is reduced, and the production cost is reduced. The staff only need to join in marriage the template and pull down and polish or change, can guarantee the roughness and the inclination on second inclined plane, and then guarantees that second slip subassembly can move to predetermined position behind the mould compound die. The stopper can drive the threaded rod to stretch into or keep away from the die cavity at gliding in-process through the internal thread portion with threaded rod complex, simultaneously, can also guarantee that the threaded rod is not influenced for the rotation process of stopper. After the internal thread portion receives wearing and tearing of certain degree, the sleeve that the staff accessible was damaged is changed, guarantees that the stopper has good drive effect to the threaded rod, ensures that the threaded rod can stretch into the preset position in the die cavity or break away from the die cavity completely.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a screw thread side injection mold of loosing core, includes front mould, back mould, preceding mold core and back mold core, preceding mold core encloses into die cavity, its characterized in that with back mold core jointly: a first inclined core pulling mechanism capable of being separated from the injection molding piece during mold opening is arranged on one side of the rear mold core; and a threaded rod is arranged on the other side of the rear mold core, and a side core-pulling driving mechanism for driving the threaded rod to rotate and stretch into or keep away from the cavity is arranged on the front mold.

2. The thread side core pulling injection mold according to claim 1, characterized in that: the first inclined core pulling mechanism comprises a first guide rod fixedly arranged on the front die and a first sliding assembly arranged on the rear die in a sliding mode, and the first guide rod is connected with the first sliding assembly in a sliding mode.

3. The thread side core pulling injection mold according to claim 2, characterized in that: the first sliding assembly comprises a first sliding block seat, a mounting block and a first core rod, and the first sliding block seat is arranged on the rear die in a sliding mode; the mounting block is detachably connected to the first sliding block seat; the first core rod penetrates through the mounting block and extends into the cavity.

4. The thread side core pulling injection mold according to claim 1, characterized in that: the threaded rod is a hollow rod, the second core rod is detachably mounted in the threaded rod, and the second core rod extends into the cavity.

5. The thread side core pulling injection mold according to claim 1, characterized in that: the side core pulling driving mechanism comprises a second guide rod and a rack which are fixedly arranged on the front die; the second sliding assembly is arranged on the rear die in a sliding mode, and the second guide rod is connected with the second sliding assembly in a sliding mode; the threaded rod is inserted on the second sliding assembly in a rotating mode, the transmission mechanism is arranged on one side of the rear die, and the rack drives the threaded rod to rotate through the transmission mechanism.

6. The threaded side core pulling injection mold according to claim 5, characterized in that: the transmission mechanism comprises an installation seat, a first gear, a second gear and a gear shaft, wherein the first gear, the second gear and the gear shaft are rotatably arranged on the installation seat; the rack is meshed with the gear shaft; the first gear is coaxially and fixedly connected with the gear shaft, and the second gear is sleeved at one end of the threaded rod, which is far away from the cavity, and is meshed with the first gear; the mounting seat is fixedly provided with a copper sleeve, and the threaded rod is sleeved with the copper sleeve.

7. The threaded side core pulling injection mold according to claim 5, characterized in that: the front die is also fixedly connected with an inclined ejecting piece; a first inclined plane is arranged on one side, away from the rear mold core, of the second sliding assembly, and the lower end of the first inclined plane inclines towards the outer side; the inclined ejecting piece is provided with a second inclined plane corresponding to the first inclined plane, and the second inclined plane can be in slidable contact with the first inclined plane.

8. The threaded side core pulling injection mold according to claim 7, characterized in that: the assembling die plate is detachably connected to one surface, close to the second sliding assembly, of the inclined top piece, and the second inclined surface is formed on one surface, close to the second sliding assembly, of the assembling die plate.

9. The threaded side core pulling injection mold according to claim 7, characterized in that: the second sliding assembly comprises a limiting block and a second sliding block seat which are detachably connected, and the first inclined plane is arranged on one side, far away from the limiting block, of the second sliding block seat; the threaded rod runs through stopper and sliding seat set up, just be equipped with external screw thread portion on the threaded rod, be equipped with on the stopper with external screw thread portion complex internal thread portion.

10. The threaded side core pulling injection mold according to claim 9, characterized in that: the second sliding assembly further comprises a sleeve, a counter bore is formed in one surface, close to the second sliding block seat, of the limiting block, the sleeve is arranged in the counter bore, and an annular boss matched with the counter bore is arranged on the sleeve; the threaded rod penetrates through the sleeve, and the inner peripheral surface of the sleeve is provided with the internal thread part.