Router front shell one-outlet two-side slide inverted mold needle valve hot runner structure

Abstract

The utility model relates to the technical field of torque detection, in particular to a router front shell one-outlet two-side slide inverted mold needle valve hot runner structure which comprises a base, a liquid inlet is formed in the middle of one side of the base, and a liquid return opening is formed in the middle of the other side of the base; and the number of the needle valve units is two, the needle valve units are fixedly installed at the two ends of the top face of the base correspondingly, each needle valve unit comprises a needle valve pipe fitting, and a needle valve rod is slidably connected to the interior of each needle valve pipe fitting. According to the utility model, through the arrangement of the recovery channel and the needle valve rod, after the needle valve rod moves upwards to plug the needle valve pipe fitting, the needle valve rod releases plugging of the top end of the recovery channel, so that materials of the needle valve pipe fitting are discharged from the recovery channel through the liquid return port, continuous flowing of the materials is realized, and the phenomenon that the needle valve pipe fitting is blocked when the top end of the needle valve pipe fitting is closed is avoided. Materials are retained at the top end of the needle valve pipe fitting, so that the materials are blocked at the top end of the needle valve pipe fitting, and the failure rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a torque detection technical field, specifically a router front shell one exports two four edge line position upside down mould needle valve hot runner structure. BACKGROUND

[0002] The needle valve type hot nozzle is a kind of hot nozzle with good heat exchange performance, suitable for most plastic materials, with excellent flow performance and fine gate trace, and its structure is relatively complex, in addition to the basic structure of ordinary multi-head hot runner system, additionally include a set of valve needle transmission device, for controlling the opening and closing movement of valve needle, by connecting with the hydraulic device of injection machine, form hydraulic circuit, realize the opening and closing movement of valve needle, to control the process that molten plastic is injected into cavity, but the existing needle valve, molten plastic is in stagnation in needle valve after valve needle is closed, waits to be extruded after valve needle is opened again, and plastic stagnation in needle valve is prone to cooling and blockage, resulting in failure. SUMMARY

[0003] The utility model discloses a router front shell one exports two four edge line position upside down mould needle valve hot runner structure to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A router front shell one exports two four edge line position upside down mould needle valve hot runner structure, comprising:

[0006] The base is provided with a liquid inlet in the middle of one side, and a liquid return port in the middle of the other side;

[0007] The needle valve unit is fixedly installed at both ends of the top surface of the base, and comprises a needle valve pipe, a needle valve rod slidably connected inside the needle valve pipe, an injection channel formed in the inner wall of one side of the needle valve pipe, and a recovery channel formed in the inner wall of the other side of the needle valve pipe.

[0008] The drive assembly is provided with two drive assemblies corresponding to the two needle valve units, and is used for sliding the needle valve rod.

[0009] Further, the top end of the recovery channel is in communication with the inner wall of the needle valve pipe, and the top end of the injection channel is in communication with the bottom end of the inner wall of the needle valve pipe.

[0010] Further, the outer side wall of the top end of the needle valve rod is fixedly connected with a sealing block, the sealing block is in sliding connection with the inner wall of the needle valve pipe, and one end of the sealing block is used for plugging the top end of the recovery channel.

[0011] Further, a protruding part is arranged in the inner wall of one side wall of the needle valve pipe, and a groove is arranged in the other end of the sealing block, and the other end of the sealing block is in sliding connection with the protruding part.

[0012] Further, a heat preservation sleeve is sleeved with the outer side wall of the needle valve pipe, a heating element is fixedly arranged between the top end of the outer side wall of the needle valve pipe and the heat preservation sleeve, and a connecting sleeve is fixedly connected between the bottom end of the heat preservation sleeve and the base.

[0013] Further, the bottom end of the needle valve pipe is fixedly communicated with a connecting interface one corresponding to the bottom end of the injection channel, the bottom end of the needle valve pipe is fixedly communicated with a connecting interface two corresponding to the bottom end of the recovery channel, the inner part of the base is provided with a liquid inlet channel between the liquid inlet and the connecting interface one, and the inner part of the base is provided with a liquid return channel between the liquid return outlet and the connecting interface two.

[0014] Further, the driving assembly comprises a shell, the shell is fixedly connected with the base, the inner wall of the shell is fixedly connected with a gas cylinder, the top surface of the base is provided with avoiding holes corresponding to the positions of the two needle valve rods, the bottom end of the needle valve rod passes through the corresponding avoiding hole to the lower part of the base, and the gas cylinder is fixedly connected with the bottom end of the needle valve rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting the recovery channel and the needle valve rod, when the needle valve rod moves upwards to block the needle valve pipe, the needle valve rod releases the blockage of the top end of the recovery channel, so that the material of the needle valve pipe is discharged from the recovery channel through the liquid return outlet, the continuous flow of the material is realized, the continuous operation of the material pump is facilitated, and the material is prevented from being retained at the top end of the needle valve pipe when the top end of the needle valve pipe is blocked, so that the material is prevented from being condensed and blocked at the top end of the needle valve pipe, and the failure rate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the overall structure schematic view of the utility model;

[0018] Fig. 2 It is the needle valve unit structure schematic view in the utility model;

[0019] Fig. 3 It is the base cross section structure schematic view in the utility model;

[0020] Fig. 4 It is the needle valve rod structure schematic view in the utility model;

[0021] Fig. 5It is the block structure schematic diagram in the utility model.

[0022] In the figure: 100, base; 110, liquid inlet; 111, liquid inlet channel; 120, liquid return port; 121, liquid return channel; 130, avoiding hole; 200, needle valve unit; 210, needle valve pipe; 211, injection channel; 212, recycling channel; 213, connection interface one; 214, connection interface two; 215, protruding part; 220, heat preservation sleeve; 221, heating element; 230, needle valve rod; 231, block; 240, connecting sleeve; 300, driving assembly; 310, shell; 320, air cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figs. 1-4 In the embodiments of the utility model, a router front shell one-out-two four edge row position inverted mold needle valve hot runner structure comprises a base 100, a liquid inlet 110 is arranged at the middle position of one side of the base 100, and a liquid return port 120 is arranged at the middle position of the other side of the base 100; two needle valve units 200 are fixedly installed at the two ends of the top surface of the base 100, the needle valve unit 200 comprises a needle valve pipe 210, the needle valve rod 230 is slidably connected in the needle valve pipe 210, the injection channel 211 is arranged in the inner wall of one side of the needle valve pipe 210, the recycling channel 212 is arranged in the inner wall of the other side of the needle valve pipe 210, the recycling channel 212 and the injection channel 211 are communicated when the top end of the needle valve rod 230 blocks the top end of the needle valve pipe 210, the recycling channel 212 is communicated with the liquid return port 120, and the injection channel 211 is communicated with the liquid inlet 110; two driving assemblies 300 are correspondingly arranged with the two needle valve units 200, and the driving assembly 300 is used for sliding the needle valve rod 230.

[0025] Specifically, when the needle valve rod 230 retracts, it releases the seal on the top of the needle valve fitting 210 while simultaneously sealing the top of the recovery channel 212. This allows material to enter the needle valve fitting 210 from the inlet 110 through the injection channel 211 and then be squeezed out from the top of the needle valve fitting 210. When the needle valve rod 230 moves upward to seal the needle valve fitting 210, it releases the seal on the top of the recovery channel 212, allowing the material in the needle valve fitting 210 to be discharged from the recovery channel 212 through the return port 120. This ensures continuous material flow, facilitates continuous operation of the material pump, and prevents material from stagnating and blocking the top of the needle valve fitting 210 when it is closed, thus reducing the failure rate.

[0026] Example 1

[0027] like Figs. 1-5 As shown, in this embodiment, the top end of the recovery channel 212 is connected to the top end of the inner wall of the needle valve fitting 210, the top end of the injection channel 211 is connected to the bottom end of the inner wall of the needle valve fitting 210, a sealing block 231 is fixedly connected to the outer wall of the top end of the needle valve rod 230, the sealing block 231 is slidably connected to the inner wall of the needle valve fitting 210, one end of the sealing block 231 is used to seal the top end of the recovery channel 212, a protrusion 215 is provided on the inner wall of one side of the needle valve fitting 210, a groove is provided on the other end of the sealing block 231, and the other end of the sealing block 231 is slidably connected to the protrusion 215, a heat insulation sleeve 220 is sleeved on the outer wall of the needle valve fitting 210, a heating element 221 is fixedly installed between the heat insulation sleeve 220 and the top end of the outer wall of the needle valve fitting 210, and a connecting sleeve 2 is fixedly connected between the bottom end of the heat insulation sleeve 220 and the base 100. 40. The bottom end of the needle valve fitting 210 is fixedly connected to the bottom end of the injection channel 211 via a connection interface 213. The bottom end of the needle valve fitting 210 is fixedly connected to the bottom end of the recovery channel 212 via a connection interface 214. The base 100 has an inlet channel 111 between the inlet port 110 and the connection interface 213. The base 100 has a return channel 121 between the return port 120 and the connection interface 214. The drive assembly 300 includes a housing 310, which is fixedly connected to the base 100. A cylinder 320 is fixedly connected to the inner wall of the housing 310. The top surface of the base 100 has clearance holes 130 at the positions corresponding to the two needle valve rods 230. The bottom end of the needle valve rod 230 passes through the corresponding clearance hole 130 to the bottom of the base 100. The cylinder 320 is fixedly connected to the bottom end of the needle valve rod 230.

[0028] In the embodiment, the convex part 215 is arranged to facilitate alignment of one end of the sealing block 231 with the recycling channel 212, the sealing block 231 is arranged to facilitate plugging of the recycling channel 212, the heat preservation sleeve 220 and the heating element 221 are arranged to reduce the cooling speed of the material in the needle valve pipe 210, thereby avoiding cooling and blocking of the material in the needle valve pipe 210, and the air cylinder 320 is arranged to drive the needle valve rod 230 to move up and down.

[0029] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A router front shell one-out-two four-side row bit flip-over pin valve hot runner structure, characterized in that, Include: Base (100), one side of the middle position is provided with liquid inlet (110), the other side of the middle position of the base (100) is provided with back liquid port (120); Needle valve unit (200), the number is two and is fixedly installed at both ends of the top surface of the base (100) respectively, the needle valve unit (200) includes needle valve pipe (210), the inside of the needle valve pipe (210) is slidably connected with needle valve rod (230), one side of the inner wall of the needle valve pipe (210) is provided with injection channel (211), the other side of the inner wall of the needle valve pipe (210) is provided with recovery channel (212), the top end of the needle valve rod (230) is blocked to the top end of the needle valve pipe (210), the recovery channel (212) is communicated with the injection channel (211), the recovery channel (212) is communicated with the back liquid port (120), the injection channel (211) is communicated with the liquid inlet (110); Driving assembly (300), the number is two and is one-to-one corresponding with two needle valve units (200), the driving assembly (300) is used for sliding with needle valve rod (230).

2. The router front shell one-out-two four edge row bit upside-down pin valve hot runner structure according to claim 1, characterized in that, The top end of the recovery channel (212) is communicated with the inner side wall top end position of the needle valve pipe (210), the top end of the injection channel (211) is communicated with the inner side wall bottom end position of the needle valve pipe (210).

3. The router front shell one-out-two four-edge row bit flip-over pin valve hot runner structure of claim 1, wherein, The top end of the needle valve rod (230) is fixedly connected with the sealing block (231), the sealing block (231) is slidably connected with the inner wall of the needle valve pipe (210), one end of the sealing block (231) is used for blocking the top end of the recovery channel (212).

4. The router front shell one-out-two four-side row bit upside-down pin valve hot runner structure according to claim 3, characterized in that, The inner wall of the side wall of the needle valve pipe (210) is provided with protruding part (215), the other end of the sealing block (231) is provided with recess, and the other end of the sealing block (231) is slidably connected with the protruding part (215).

5. The router front shell one-out-two four edge row bit inverted pin valve hot runner structure of claim 1, wherein, The outer side wall of the needle valve pipe (210) is sleeved with heat preservation sleeve (220), the heating element (221) is fixedly installed between the outer side wall top end of the heat preservation sleeve (220) and the needle valve pipe (210), the connecting sleeve (240) is fixedly connected between the bottom end of the heat preservation sleeve (220) and the base (100).

6. The router front case one-out-two four edge row bit upside-down pin valve hot runner structure of claim 1, wherein, The bottom end of the needle valve pipe (210) is fixedly communicated with connecting interface one (213) corresponding to the bottom end of the injection channel (211), the bottom end of the needle valve pipe (210) is fixedly communicated with connecting interface two (214) corresponding to the bottom end of the recovery channel (212), the inside of the base (100) is provided with liquid inlet channel (111) between the liquid inlet (110) and connecting interface one (213), the inside of the base (100) is provided with back liquid channel (121) between back liquid port (120) and connecting interface two (214).

7. The router front shell one-out-two four edge row bit inverted pin valve hot runner structure of claim 1, wherein, Said drive assembly (300) includes a shell (310), the shell (310) is fixed with the base (100), the inner wall of the shell (310) is fixed with the air cylinder (320), the top surface of the base (100) is provided with the avoiding hole (130) corresponding to the position of two needle valve rods (230), the bottom end of the needle valve rod (230) passes through the corresponding avoiding hole (130) to the lower of the base (100), the air cylinder (320) is fixed with the bottom end of the needle valve rod (230).

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