Micro injection molding full hot runner mold and equipment for integrated injection molding of USB (Universal Serial Bus) rubber core

Abstract

The invention provides a trace injection molding full hot runner mold for USB (universal serial bus) rubber core integral injection molding, which comprises a bottom sealing plate, a hot runner mounting and positioning plate is mounted on the bottom sealing plate, a lower mold base is mounted on the hot runner mounting and positioning plate, and the bottom sealing plate, the hot runner mounting and positioning plate and the lower mold base are fixed together through connecting columns. An upper die holder is arranged above the lower die holder, a core plate is arranged above the upper die holder, a pressing plate is arranged above the core plate, a top plate is arranged above the pressing plate, the top plate, the pressing plate, the core plate and the upper die holder are fixed together through connecting columns, and a hot runner forming module is arranged between the lower die holder and the upper die holder. The micro injection molding full hot runner mold and equipment for the integrated injection molding of the USB rubber core are reasonable in structural design, only one rubber inlet needs to be designed through the design of the full hot runner structure in the mold, so that the demolding structure becomes easy, no waste is generated, the production cost is greatly reduced, and the micro injection molding full hot runner mold and equipment are suitable for molding production of the high-quality USB rubber core.

Description

Technical Field

[0001] The invention relates to the technical field of USB production equipment, and in particular to a micro-injection full-hot runner mold and equipment for integral injection molding of a USB rubber core. Background Art

[0002] The rubber core is an important functional part of the USB connector, which is used to position the terminal and insulate it. The existing USB products generally require the rubber core to be produced by two injection molding. The wall thickness of the rubber core of some structures is unevenly distributed, the length, width and height dimensions vary greatly, and the internal structure is complex. In order to ensure the quality of the rubber core after molding, it is often necessary to design multiple glue inlets on the mold so that the glue can be injected synchronously at multiple points. Although this molding structure can well ensure the molding quality of the rubber core, the multi-gate structure design not only makes the demoulding structure complicated, but also wastes more rubber. The performance of the gate rubber will decrease after recycling, and it cannot be used for the molding and production of high-quality plastic parts, which leads to serious loss of raw materials and high production costs. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention proposes a micro-injection full-hot runner mold and equipment for integrated injection molding of USB rubber cores. Only one glue inlet and one water outlet need to be designed. The structural design not only makes the demoulding structure easier, but also does not waste plastic materials, greatly reduces production costs, and is suitable for the molding production of high-quality USB rubber cores.

[0004] To achieve the above technical solution, the present invention provides a micro-injection full-hot runner mold for integrated injection molding of USB rubber core, comprising: a bottom sealing plate, a hot runner installation positioning plate is installed on the bottom sealing plate, a lower mold base is installed on the hot runner installation positioning plate, the bottom sealing plate, the hot runner installation positioning plate and the lower mold base are fixed together by connecting columns, an upper mold base is arranged above the lower mold base, a core plate is installed above the upper mold base, a pressure plate is installed above the core plate, a top plate is installed above the pressure plate, the top plate, the pressure plate, the core plate and the upper mold base are fixed together by connecting columns, a hot runner molding module is installed between the lower mold base and the upper mold base, the hot runner molding module includes two rubber core molding modules distributed in parallel and spaced apart, each rubber core molding module includes a hot runner molding base arranged on the lower mold base, two copper bar placement grooves distributed in parallel and spaced apart are arranged on the hot runner molding base, and the hot runner outlet is arranged between the two copper bar placement grooves The hot runner outlet is arranged on the center line of the hot runner, a hot flow discharge plate is arranged on the top of the hot runner outlet, a pressure plate is arranged above the hot flow discharge plate, the pressure plate and the hot flow discharge plate are connected by a connecting column, and the top of the pressure plate is fixed to the bottom of the pressure plate, the rubber core forming mold is arranged on the bottom of the upper mold base and is located on one side of the copper bar placement groove; an injection molding feed port is arranged at the bottom center of the bottom sealing plate, a feeding hole corresponding to the injection molding feed port is arranged at the center of the hot runner installation positioning plate, a distributor mounting groove is arranged on the left and right sides of the feed hole on the hot runner installation positioning plate, a hot runner distributor is installed in the distributor mounting groove, a diverter groove is arranged at the center of the lower mold base, the diverter groove is located directly above the feed hole, and the diverter groove is connected with the distributor mounting grooves on the left and right sides of the hot runner installation positioning plate, a distribution hole is arranged on the lower mold base correspondingly above the distribution hole, and the distribution hole is located directly below the hot runner outlet arranged on the hot runner molding seat.

[0005] In the above technical scheme, during actual operation, after the copper bar is placed in the copper bar placement groove, the injection molding machine drives the upper mold base and the lower mold base to close the mold, so that the rubber core molding mold fits the hot runner molding seat, and the pressure plate pushes the pressure plate to place the hot flow discharge plate cover on the hot runner outlet, and then the injection molding machine performs injection molding to the mold after closing the mold through the injection molding feed port set at the bottom center of the bottom sealing plate, and the plastic in the molten state enters the feed hole set on the hot runner mounting positioning plate through the injection molding feed port, and then flows into the distributor mounting groove through the diverter groove respectively, and then is kept heated by the hot runner distributor installed in the distributor mounting groove and discharged out through the distribution hole and the hot runner outlet. At the same time, the plastic in the molten state flows into the rubber core molding mold evenly through the hot flow discharge plate under pressure, the copper bar is placed in the copper bar placement groove, and the copper legs set on the copper bar extend into the rubber core molding mold, the rubber core is pressure-formed in the rubber core molding mold, and the rubber core wraps the copper legs, and the rubber core finished product is obtained after pressure maintenance. After the rubber core is formed, the injection molding machine drives the upper mold base and the lower mold base to separate, and the molded rubber core finished product can be taken out.

[0006] Preferably, a hot runner control connector module is installed on the front side of the hot runner mounting positioning plate, and the hot runner control connector module includes a mounting plate, and the mounting plate is fixed on the front side of the hot runner mounting positioning plate. Control valves are installed on the left and right sides of the mounting plate, and the two control valves are respectively connected to the hot runner distributors installed in the two distributor mounting grooves through pipelines. The hot runner distributors are installed with temperature sensors and pressure sensors. A plurality of hot runner control connectors distributed in parallel and at intervals are installed on the front side of the mounting plate, and the hot runner control connectors are respectively electrically connected to the temperature sensors and pressure sensors installed on the hot runner distributors. In actual operation, the pneumatic distribution pressure of the hot runner distributor can be accurately controlled by the two control valves, and the temperature and pressure changes in the mold can be monitored in real time through the hot runner control connector, so as to more accurately control the pressure and temperature in the mold.

[0007] Preferably, a plurality of buffers are installed between the upper die seat and the pressure plate, the top of the buffer is fixedly connected to the pressure plate, and the bottom of the buffer is connected to the upper die seat after passing through the core plate in the longitudinal direction, so as to improve the stamping resistance of the upper die seat.

[0008] Preferably, the core plate and the four end corners of the upper mold base are provided with interconnected guide sleeves, the lower mold base is provided with upwardly protruding guide pillars, and the guide sleeves are sleeved on the guide pillars to ensure accurate mold closing between the upper mold base and the lower mold base.

[0009] Preferably, two pressure plate through-grooves are provided on the core plate, and the pressure plate is fixed on the pressure plate after passing through the pressure plate through-grooves. A spring is installed between the pressure plate and the hot flow discharge plate to enhance the buffering performance between the pressure plate and the hot flow discharge plate.

[0010] The present invention also provides a micro-injection full hot runner injection molding equipment for USB rubber core integrated injection molding, including: the above-mentioned micro-injection full hot runner mold for USB rubber core integrated injection molding, and also includes a copper bar loading rack and an injection molding machine, the micro-injection full hot runner mold for USB rubber core integrated injection molding is installed in the injection molding cavity of the injection molding machine, the copper bar loading rack is installed on one side of the injection molding machine, and the copper bar is transported to the injection molding cavity of the injection molding machine through the copper bar loading rack. In actual work, the copper bar loading rack indirectly transports the copper bar to the injection molding machine, and accurately transports it to the copper bar placement groove of the micro-injection full hot runner mold for USB rubber core integrated injection molding, and then injects it into the micro-injection full hot runner mold for USB rubber core integrated injection molding through the injection molding machine, so as to realize the fully automated injection molding of the rubber core.

[0011] The beneficial effects of a micro-injection full hot runner mold for integral injection molding of a USB rubber core provided by the present invention are:

[0012] (1) The micro-injection full hot runner mold structure design for USB rubber core integrated injection molding is reasonable. Through the full hot runner structure design in the mold, the hot runner distributor is used to maintain heating to ensure that the plastic in the runner and the gate remains in a molten state. Since a heating ring and a heating rod are arranged near or in the center of the runner, the entire runner from the injection machine nozzle outlet to the gate is in a high temperature state, so that the plastic in the runner is always kept molten. There is no need to remove the runner waste every time the mold is opened to take out the parts, and the molten material retained in the hot runner system can be injected into the cavity during the next injection molding, reducing raw material waste, avoiding freezing time and subsequent processing, making the plastic more beautiful, and improving production efficiency and economic benefits.

[0013] (2) The micro-injection full hot runner mold for the integrated injection molding of the USB rubber core only needs to design one glue inlet and one water outlet. The structural design not only makes the demoulding structure easier, but also avoids wasting plastic materials, greatly reduces the production cost, and is suitable for the molding production of high-quality USB rubber cores. In actual operation, after the copper bar is placed in the copper bar placement groove, the injection molding machine drives the upper mold base and the lower mold base to close the mold, so that the rubber core molding mold fits the hot runner molding seat, and the pressure plate pushes the pressure plate to place the hot flow discharge plate cover on the hot runner outlet, and then the injection molding machine performs injection molding to the mold after closing the mold through the injection molding feed port set at the bottom center of the bottom sealing plate, and the plastic in the molten state enters the feed hole set on the hot runner installation positioning plate through the injection molding feed port, and then flows into the distributor installation groove through the diverter groove respectively, and then is kept heated by the hot runner distributor installed in the distributor installation groove and discharged out through the distribution hole and the hot runner outlet. At the same time, the plastic in the molten state flows into the rubber core molding mold evenly through the hot flow discharge plate under pressure, the copper bar is placed in the copper bar placement groove, and the copper legs set on the copper bar extend into the rubber core molding mold, the rubber core is pressure-held in the rubber core molding mold, and the rubber core wraps the copper legs, and the rubber core finished product is obtained after pressure holding. After the rubber core is formed, the injection molding machine drives the upper mold base and the lower mold base to separate, and the finished rubber core can be taken out. No waste will be generated in the whole process, and it can achieve full automatic and continuous operation, which greatly improves the efficiency of rubber core injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the finished product structure after injection molding of the present invention.

[0015] Figure 2 It is a three-dimensional structural assembly diagram of the full hot runner mold in the present invention.

[0016] Figure 3 It is an exploded top view of the three-dimensional structure of the full hot runner mold in the present invention.

[0017] Figure 4 It is an exploded bottom view of the three-dimensional structure of the full hot runner mold in the present invention.

[0018] Figure 5 Schematic diagram of the internal structure of the full hot runner mold in the present invention Figure I .

[0019] Figure 6 Schematic diagram of the internal structure of the full hot runner mold in the present invention Figure II .

[0020] Figure 7 Schematic diagram of the internal structure of the full hot runner mold in the present invention Figure III .

[0021] Figure 8 It is an exploded view of the lower mold base, hot runner installation positioning plate and bottom sealing plate of the full hot runner mold in the present invention.

[0022] Fig. 9 It is a schematic diagram of the micro-injection full hot runner injection molding equipment used for the integral injection molding of the USB rubber core in the present invention.

[0023] In the figure: 1, top plate; 2, pressure plate; 21, buffer; 22, guide sleeve; 23, pressure plate through groove; 3, core plate; 4, upper mold seat; 5, hot runner molding module; 51, rubber core molding module; 511, copper bar placement groove; 512, pressure plate; 513, hot flow discharge plate; 514, rubber core molding mold; 515, hot runner outlet; 516, hot runner molding seat; 6, lower mold seat; 6 1. Diverter slot; 62. Flow distribution hole; 7. Hot runner installation positioning plate; 71. Feed hole; 72. Hot runner flow distributor; 8. Bottom sealing plate; 81. Injection molding feed port; 9. Hot runner control connector module; 91. Mounting plate; 92. Control valve; 93. Hot runner control connector; 100. Copper busbar; 200. Copper support foot; 300. Rubber core; 400. Copper busbar loading rack; 500. Injection molding machine. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0025] Example 1: A micro-injection full hot runner mold for integral injection molding of a USB rubber core.

[0026] Reference Figures 1 to 8As shown, a micro-injection full hot runner mold for integral injection molding of a USB rubber core comprises: a bottom sealing plate 8, a hot runner installation positioning plate 7 is installed on the bottom sealing plate 8, a lower mold base 6 is installed on the hot runner installation positioning plate 7, and the bottom sealing plate 8, the hot runner installation positioning plate 7 and the lower mold base 6 are fixed together by connecting columns to form the lower mold of the mold. An upper mold base 4 is arranged above the lower mold base 6, a core plate 3 is installed above the upper mold base 4, a pressure plate 2 is installed above the core plate 3, a top plate 1 is installed above the pressure plate 2, and the top plate 1, the pressure plate 2, the core plate 3 and the upper mold base 4 are fixed together by connecting columns to form the upper mold of the mold. Four buffers 21 are installed between the upper mold base 4 and the pressure plate 2, the top of the buffer 21 is fixedly connected to the pressure plate 2, and the bottom of the buffer 21 is connected to the upper mold base 4 after passing through the core plate 3 in the longitudinal direction, so as to improve the anti-stamping performance of the upper mold base 4. The core plate 3 and the upper die seat 4 are provided with interconnected guide sleeves 22 at the four end corners, and the lower die seat 6 is provided with an upwardly protruding guide post, and the guide sleeve 22 is sleeved on the guide post to ensure accurate mold closing between the upper die seat 4 and the lower die seat 6. The core plate 3 is provided with two pressure plate through slots 23, and the pressure plate 512 is fixed on the pressure plate 2 after passing through the pressure plate through slots 23.

[0027] The hot runner molding module 5 is installed between the lower mold base 6 and the upper mold base 4, and the hot runner molding module 5 includes two parallel and spaced rubber core molding modules 51, each rubber core molding module 51 includes a hot runner molding seat 516 arranged on the lower mold base 6, and two parallel and spaced copper bar placement grooves 511 are arranged on the hot runner molding seat 516, and the hot runner outlet 515 is arranged on the center line between the two copper bar placement grooves 511, and a hot flow discharge plate 513 is installed on the top of the hot runner outlet 511. The function of the hot flow discharge plate 513 is to make the hot runner outlet The molten plastic from the outlet 511 flows evenly into the rubber core molding mold 514. The pressure plate 512 is installed above the hot runner discharge plate 513. The pressure plate 512 and the hot runner discharge plate 513 are connected by a connecting column, and the top of the pressure plate 512 passes through the pressure plate through-slot 23 and is fixed to the bottom of the pressure plate 2. A spring is installed between the pressure plate 512 and the hot runner discharge plate 513 to enhance the buffering performance between the pressure plate 512 and the hot runner discharge plate 513. The rubber core molding mold 514 is installed at the bottom of the upper mold base 4 and is located on one side of the copper bar placement slot 511. In actual operation, when the lower mold base 6 and the upper mold base 4 are molded together, the rubber core molding mold 514 just covers one side of the copper bar placement slot 511, and the molten plastic passes through the hot runner outlet 511 and then flows evenly into the rubber core molding mold 514 through the hot runner discharge plate 513 for pressure-maintaining molding.

[0028] An injection molding feed port 81 is arranged at the bottom center of the bottom sealing plate 8, a feed hole 71 corresponding to the injection molding feed port 81 is arranged at the center of the hot runner mounting positioning plate 7, flow distributor mounting grooves are arranged on the left and right sides of the feed hole 71 on the hot runner mounting positioning plate 7, a hot runner flow distributor 72 is installed in the flow distributor mounting groove, a diverter groove 61 is arranged at the center of the lower mold base 6, the diverter groove 61 is located directly above the feed hole 71, and the diverter groove 61 is connected to the flow distributor mounting grooves on the left and right sides of the hot runner mounting positioning plate 7, a flow distribution hole 62 is correspondingly arranged on the lower mold base 6 above the flow distributor mounting groove, and the flow distribution hole 62 is located directly below the hot runner outlet 515 arranged on the hot runner molding seat 516. In actual operation, after the copper bar 100 is placed in the copper bar placement groove 511, the injection molding machine drives the upper mold base 4 and the lower mold base 6 to close the mold, so that the rubber core molding mold 514 fits with the hot runner molding base 516, and the pressing plate 2 pushes the pressure plate 512 to cover the hot flow discharge plate 513 on the hot runner outlet 515, and then the injection molding machine performs injection molding to the mold after closing the mold through the injection molding feed port 81 set at the bottom center of the bottom sealing plate 8, and the molten plastic enters the feed hole 71 set on the hot runner installation positioning plate 7 through the injection molding feed port 81, and then flows into the distributor installation groove through the diverter groove 61. The hot runner distributor 72 installed in the distributor installation groove is kept heated and then discharged outward through the distribution hole 62 and the hot runner outlet 515. At the same time, the molten plastic flows into the rubber core molding mold 514 evenly through the hot flow discharge plate 513 under pressure. The copper busbar 100 is placed in the copper busbar placement groove 511, and the copper legs 200 arranged on the copper busbar 100 extend into the rubber core molding mold 514. The rubber core 300 is pressure-maintained and molded in the rubber core molding mold 514, and the rubber core 300 wraps the copper legs 200. After pressure maintenance, the rubber core 300 is obtained. Finished product (such as Figure 1 After the rubber core is formed, the injection molding machine drives the upper mold base 4 to separate from the lower mold base 6, and the finished rubber core is taken out. No waste is generated during the whole process, and all automatic and continuous operations can be achieved, which greatly improves the efficiency of rubber core injection molding.

[0029] A hot runner control joint module 9 is installed on the front side of the hot runner installation positioning plate 7. The hot runner control joint module 9 includes a mounting plate 91, which is fixed on the front side of the hot runner installation positioning plate 7. Control valves 92 are installed on both sides of the mounting plate 91. The two control valves 92 are connected to the hot runner distributors 72 installed in the two distributor installation grooves through pipelines. The hot runner distributors 72 are installed with temperature sensors and pressure sensors. A plurality of hot runner control joints 93 are installed on the front side of the mounting plate 91 in parallel and spaced apart. The hot runner control joints 93 are electrically connected to the temperature sensors and pressure sensors installed on the hot runner distributors 72. In actual operation, the pneumatic distribution pressure of the hot runner distributors 72 can be accurately controlled by the two control valves 92, and the temperature and pressure changes in the mold can be monitored in real time through the hot runner control joints 93, so as to more accurately control the pressure and temperature in the mold.

[0030] The micro-injection full hot runner mold structure design for USB rubber core integrated injection molding is reasonable. Through the full hot runner structure design in the mold, the hot runner distributor 72 is used to maintain heating to ensure that the plastic in the runner and the gate remains in a molten state. Since a heating ring and a heating rod are arranged near or in the center of the runner, the entire runner from the injection machine nozzle outlet to the gate is in a high temperature state, so that the plastic in the runner is always kept molten. It is not necessary to take out the runner waste every time the mold is opened to take out the parts, and the molten material retained in the hot runner system can be injected into the mold cavity at the next injection molding, reducing the waste of raw materials, avoiding freezing time and subsequent processing, making the plastic more beautiful, and improving production efficiency and economic benefits. In addition, the micro-injection full hot runner mold for USB rubber core integrated injection molding only needs to design a glue inlet and a water outlet structure design, which not only makes the demoulding structure easy, but also does not waste plastic materials, does not produce waste, greatly reduces production costs, and is suitable for the molding production of high-quality USB rubber cores.

[0031] Example 2: A micro-injection full hot runner injection molding device for integral injection molding of USB rubber core.

[0032] Reference Fig. 9As shown, the present invention also provides a micro-injection full-hot runner injection molding device for integrated injection molding of USB rubber core, including: the micro-injection full-hot runner mold for integrated injection molding of USB rubber core as described in Example 1, and also including a copper bar loading rack 400 and an injection molding machine 500. The micro-injection full-hot runner mold for integrated injection molding of USB rubber core is installed in the injection cavity of the injection molding machine 500, the copper bar loading rack 400 is installed on one side of the injection molding machine 500, and the copper bar 100 is transported to the injection cavity of the injection molding machine 500 through the copper bar loading rack 400. During actual operation, the copper bar loading rack 400 indirectly transports the copper bar 100 to the injection molding machine 500, and accurately transports it to the copper bar placement groove 511 of the micro-injection molding full hot runner mold for integrated injection molding of the USB rubber core, and then the injection molding machine 500 injects it into the micro-injection molding full hot runner mold for integrated injection molding of the USB rubber core, thereby realizing fully automated injection molding of the rubber core.

[0033] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings, so any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A micro-injection full hot runner mold for USB rubber core integrated injection molding, characterized in that include: A bottom sealing plate, a hot runner installation positioning plate is installed on the bottom sealing plate, a lower mold base is installed on the hot runner installation positioning plate, the bottom sealing plate, the hot runner installation positioning plate and the lower mold base are fixed together by connecting columns, an upper mold base is arranged above the lower mold base, a core plate is installed above the upper mold base, a pressure plate is installed above the core plate, a top plate is installed above the pressure plate, the top plate, the pressure plate, the core plate and the upper mold base are fixed together by connecting columns, the hot runner molding module is installed between the lower mold base and the upper mold base, the hot runner molding module includes two parallel and spaced rubber core molding modules, each rubber core molding module includes a hot runner molding seat arranged on the lower mold base, two parallel and spaced copper bar placement grooves are arranged on the hot runner molding seat, the hot runner outlet is arranged on the center line between the two copper bar placement grooves, and a hot flow discharge plate is installed on the top of the hot runner outlet. The pressure plate is installed above the hot flow discharge plate, the pressure plate and the hot flow discharge plate are connected by a connecting column, and the top of the pressure plate is fixed to the bottom of the pressure plate, and the rubber core molding mold is installed at the bottom of the upper mold base and is located on one side of the copper bar placement groove; an injection molding feed port is arranged at the bottom center of the bottom sealing plate, and a feed hole corresponding to the injection molding feed port is arranged at the center of the hot runner installation positioning plate, and a distributor installation groove is arranged on the left and right sides of the feed hole on the hot runner installation positioning plate, and a hot runner distributor is installed in the distributor installation groove, and a diverter groove is arranged at the center of the lower mold base, and the diverter groove is located directly above the feed hole, and the diverter groove is connected with the distributor installation grooves on the left and right sides of the hot runner installation positioning plate, and a distribution hole is correspondingly arranged on the lower mold base above the distributor installation groove, and the distribution hole is located directly below the hot runner outlet arranged on the hot runner molding seat.

2. The micro-injection full hot runner mold for integral injection molding of USB rubber core according to claim 1, characterized in that: A hot runner control joint module is installed on the front side of the hot runner mounting positioning plate, and the hot runner control joint module includes a mounting plate, and the mounting plate is fixed on the front side of the hot runner mounting positioning plate. Control valves are installed on the left and right sides of the mounting plate, and the two control valves are respectively connected to the hot runner flow distributors installed in the two flow distributor mounting grooves through pipelines. The hot runner flow distributor is installed with a temperature sensor and a pressure sensor, and a plurality of hot runner control joints distributed in parallel and at intervals are installed on the front side of the mounting plate, and the hot runner control joints are respectively electrically connected to the temperature sensor and the pressure sensor installed on the hot runner flow distributor.

3. The micro-injection full hot runner mold for USB rubber core integrated injection molding according to claim 1, characterized in that: A plurality of buffers are installed between the upper die seat and the pressing plate, the top of the buffer is fixedly connected to the pressing plate, and the bottom of the buffer penetrates the core plate in the longitudinal direction and is connected to the upper die seat.

4. The micro-injection full hot runner mold for integral injection molding of USB rubber core according to claim 1, characterized in that: The core plate and the four end corners of the upper die seat are all provided with communicating guide sleeves, and the lower die seat is provided with guide pillars protruding upwards, and the guide sleeves are sleeved on the guide pillars.

5. The micro-injection full hot runner mold for USB rubber core integrated injection molding according to claim 1, characterized in that: The core plate is provided with two pressure plate through-grooves, and the pressure plate is fixed on the pressure plate after passing through the pressure plate through-grooves, and a spring is installed between the pressure plate and the hot flow discharge plate.

6. A micro-injection full hot runner injection molding equipment for USB rubber core integrated injection molding, characterized in that include: The micro-injection full-hot runner mold for integrated injection molding of USB rubber core as described in any one of claims 1-5, further comprising a copper bar loading rack and an injection molding machine, the micro-injection full-hot runner mold for integrated injection molding of USB rubber core is installed in the injection cavity of the injection molding machine, the copper bar loading rack is installed on one side of the injection molding machine, and the copper bar is transported to the injection cavity of the injection molding machine through the copper bar loading rack.

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