CN209079060U - A kind of plastic injection molding machine nozzle arrangements - Google Patents

Abstract

The utility model relates to injection molding machine technical field, especially a kind of plastic injection molding machine nozzle arrangements.It includes transfer tube, nozzle, ball, motor, nozzle includes communicating pipe and spray head, first runner is offered in communicating pipe and spray head, the right end of spray head is set as injection port, second flow channel is opened up in transfer tube, connecting hole is offered on ball, the transmission shaft of motor is connect with Ball Transmission, and the left end of communicating pipe is set as cambered surface.The utility model embodiment drives ball to rotate using motor, by adjusting the relative positional relationship between second flow channel and connecting hole, adjust plastic material drag size in flow process, to realize the control to flow in first runner, operating process when control flow is simplified, the fluency of injection step is promoted；Cambered surface is set by the left end of communicating pipe simultaneously, facilitates ball rotating freely in transfer tube, make ball while there is the double action for adjusting flow and closed flow.

Description

A kind of plastic injection molding machine nozzle arrangements

Technical field

The utility model relates to injection molding machine technical field, especially a kind of plastic injection molding machine nozzle arrangements.

Background technique

With the development of society, plastic products in people's lives using more and more extensive, the daily life such as electronic product The product of applying flexibly are applied to plastic products, wherein injection moulding is one of the important means of manufacture plastic products.

Wherein nozzle is the important medium being transferred to the plastic material in injection molding machine in process of injection molding in mold, by Different flows is needed for different plastic products in injection molding, controls stream often through replacement nozzle in practical applications Amount, this mode not only need different nozzle to cooperate but also complicated for operation, have for the fluency of injection step very big It influences.

Therefore, it is necessary to study the injection moulding machine nozzle structures that one kind can directly control flow.

Utility model content

In view of the deficiency of the prior art, the purpose of this utility model is to provide a kind of plastic-injection machine nozzles Structure.

To achieve the goals above, the utility model adopts the following technical solution:

A kind of plastic injection molding machine nozzle arrangements, it include transfer tube, positioned at transfer tube right end nozzle, be located at transfer tube in Ball and motor positioned at the outside of transfer tube；First runner, the right end of the transfer tube are offered in the transfer tube Open up through-hole；The nozzle includes the spray head of the communicating pipe in first runner and the right end positioned at communicating pipe, the connection Central axial direction in pipe and spray head along communicating pipe offers second flow channel, and the right end of the spray head is set as injection port；Institute It states and is provided with fixing seat on the periphery wall of transfer tube, the motor is fixedly installed in fixing seat, and the diameter of the ball is greater than The diameter of second flow channel, the connecting hole across ball is offered on the ball, and the ball is connect with motor drive；The company The left end of siphunculus is set as the cambered surface being recessed to the left, and the central axial direction in the cambered surface along communicating pipe offers through-hole.

Preferably, limit base is provided on the periphery wall of the communicating pipe, the limit base is located at the left end of spray head, described The left side of limit base is abutted with the right side of transfer tube.

Preferably, the fixed seating is in the left side of limit base, the central axis of the left side of the limit base along limit base Fixed column is extended in line direction to the left, tapped on the left end peripheral wall of the fixed column, relative to fixation in the fixing seat Column offers location hole, and the left end of the fixed column passes through the left side that location hole is located at fixing seat, setting on the left of the fixing seat There is location nut, the location nut is threadedly coupled with fixed column, and the fixed column is set as two and contraposition is distributed in limit The upper and lower ends of seat, the location hole is set as two and contraposition is distributed in the upper and lower ends of fixing seat.

Preferably, cylindrical strainer, the peripheral wall of the strainer and the inner circumferential of communicating pipe are provided in the communicating pipe Wall abuts, and the strainer is located at the right end of communicating pipe, and the axis direction of the filter top line of the net communicating pipe offers several filterings Hole.

Preferably, the transfer tube includes being socketed in the delivery pipe of communicating pipe left end and positioned at the several of the left end of delivery pipe A auxiliary tube offers third flow channel in the auxiliary tube, and the third flow channel is connected with first runner.

Preferably, the collet of delivery pipe periphery wall is provided through on the transfer tube, the transmission shaft of the motor is worn Collet is crossed to connect with Ball Transmission.

Preferably, heater strip is provided in ring week on the periphery wall of the auxiliary tube.

As the above scheme is adopted, the utility model embodiment drives ball to rotate using motor, by adjusting second Relative positional relationship between runner and connecting hole adjusts plastic material drag size in flow process, to realize to the The control of flow in one runner simplifies operating process when control flow, promotes the fluency of injection step；It simultaneously will even The left end of siphunculus is set as cambered surface, facilitates ball rotating freely in transfer tube, make ball and meanwhile have adjust flow and The double action of closed flow.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the schematic diagram of the section structure of the utility model embodiment；

Fig. 3 is the decomposition texture schematic diagram of the utility model embodiment；

In figure: 10 transfer tubes, 11 fixing seats, 12 delivery pipes, 13 auxiliary tubes, 20 nozzles, 21 communicating pipes, 22 spray heads, 23 limits Position seat, 30 balls, 41 motors, 42 collets, 51 fixed columns, 52 location nuts, 60 strainers, 70 heater strips, a first runner, b the Two runners, c connecting hole, d third flow channel.

Specific embodiment

The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by right It is required that the multitude of different ways for limiting and covering is implemented.

As shown in Figure 1-3, a kind of plastic injection molding machine nozzle arrangements provided by the embodiment of the utility model, it includes transfer tube 10, positioned at the nozzle 20, the ball 30 in transfer tube 10 and the electricity positioned at the outside of transfer tube 10 of 10 right end of transfer tube Machine 41；First runner a is offered in transfer tube 10；Nozzle 20, which includes communicating pipe 21 in the first runner a, to be connected to being located at Central axial direction in the spray head 22 of the right end of pipe 21, communicating pipe 21 and spray head 22 along communicating pipe 21 offers second flow channel b, The right end of spray head 22 is set as injection port (not identifying in figure)；Fixing seat 11, motor 41 are provided on the periphery wall of transfer tube 10 It is fixedly installed in fixing seat 11, the diameter of ball 30 is greater than the diameter of second flow channel b, offers on ball 30 across ball 30 Connecting hole c, ball 30 and motor 41 are sequentially connected；The left end of communicating pipe 21 is set as the cambered surface being recessed to the left, edge in cambered surface The central axial direction of communicating pipe 21 offers through-hole (not shown).

Based on the above structure, when needing that the flow in first runner a is adjusted, pass through the operating band of motor 41 Dynamic ball 30 rotates, and ball 30 is rotated by axis of the radial direction of transfer tube 10, and the direction of connecting hole c changes correspondingly, as a result, The resistance that the plastic material being flowed into connecting hole c out of second flow channel b is subject to becomes larger, so that flow velocity is slack-off, flow reduces, and leads It causes the flow entered in first runner a to reduce, has achieved the purpose that control flow；Simultaneously set the left end of communicating pipe 21 to The right side of cambered surface, ball 30 is fitted in cambered surface, and ball 30 is fitted in cambered surface always during rotation, helps to protect The stabilization of 30 position of ball is held, when needing to disconnect the connected relation between second flow channel b and first runner a under special circumstances, By the rotation of ball 30 until the central axis of connecting hole c is located at the radial direction of transfer tube 10, at this point, the right end face paste of ball 30 It closes in cambered surface, has completely cut off the circulation between second flow channel b and first runner a.Based on this, 30 turns of ball are driven using motor 41 It is dynamic, by adjusting the relative positional relationship between second flow channel b and connecting hole c, adjust plastic material resistance in flow process Size simplifies operating process when control flow, promotes injection molding work to realize the control to flow in first runner a The fluency of sequence；Cambered surface is set by the left end of communicating pipe 21 simultaneously, facilitates freely the revolving in transfer tube 10 of ball 30 Turn, make ball 30 while there is the double action for adjusting flow and closed flow.

For the installation convenient for the nozzle arrangements, it is provided with limit base 23 on the periphery wall of communicating pipe 21, limit base 23 In the left end of spray head 22, the left side of limit base 23 is abutted with the right side of transfer tube 10.Based on the above structure, in installation process In, directly communicating pipe 21 is plugged in transfer tube 10, since communicating pipe 21 and the relative position of transfer tube 10 not can determine that, is needed It repeatedly to measure and move, dally over one's work the time, limit base 23 is set on the periphery wall of communicating pipe 21, it is ensured that spray head 22 Communicating pipe 21 is directly plugged into transfer tube 10 by the positional relationship to keep relative stability between transfer tube 10, is omitted really The process for determining 10 installation site of communicating pipe 21 and transfer tube, saves the set-up time.

To guarantee that nozzle 20 can be steadily fixedly connected on transfer tube 10, fixing seat 11 is set to limit in the present embodiment The left side of position seat 23, in addition, fixed column 51 is extended along the axis direction of limit base 23 in the left side of limit base 23 to the left, it is fixed It is tapped on the left end peripheral wall of column 51, location hole (not identifying in figure) is offered relative to fixed column 51 in fixing seat 11, Gu The left end of fixed column 51 passes through the left side that location hole is located at fixing seat 11, and location nut 52 is provided on the left of fixing seat 11, positions spiral shell Mother 52 is threadedly coupled with the left end of fixed column 51, wherein fixed column 51 is set as two and aligns respectively at the upper of limit base 23 Lower both ends, location hole is set as two and contraposition is distributed in the upper and lower ends of fixing seat 11.Based on the above structure, in traditional structure In it is general directly spray head 22 and transfer tube 10 are fixed using being threadedly coupled, however, in injection moulding process, due to plastic material The coupling part of spray head 22 and transfer tube 10 can be easy to cause to produce to biggish impact force is generated between spray head 22 and transfer tube 10 It is raw to loosen, when plastic material is flowed through at first runner a, it may penetrate into screw thread, since plastic material belongs to the raw material of industry, Itself has certain corrosivity, can cause to corrode to spray head 22 and 10 junction of transfer tube, exacerbate spray head 22 and transfer tube The extent of the destruction of connection relationship between 10 is easy to cause the bad problems such as spray head 22 is detached from, raw material leaks outside；Therefore by limiting Fixed column 51 is set on the left side of seat 23, and fixed column is fixed on to the left end of fixing seat 11 using location nut 52, by spiral shell Line is connected in the outside of transfer tube 10, avoids plastic material and directly contacts location nut 52 and fixed column 51, improves Relationship is fixedly connected between spray head 22 and transfer tube 10.

For the quality for promoting product, the present embodiment is provided with cylindrical strainer 60 within communicating pipe 21, strainer 60 Peripheral wall is abutted with the internal perisporium of communicating pipe 21, and strainer 60 is located at the right end of communicating pipe 21, wherein along communicating pipe 21 on strainer 60 Central axial direction offer several filter hole (not identifying in figure).It, can be by raw material in 60 use of strainer based on the above structure Bulky grain and unfused additive in solution etc. completely cut off in the left end of injection hole, avoid being entered in mold by injection hole, Reduce substandard products amount；Axis direction of the filter opening direction along communicating pipe 21 opens up simultaneously, reduces plastic material and flows through first runner a Resistance, facilitate the transmission and injection of plastic material.

To make plastic material temperature everywhere in transfer tube 10 keep uniformly, reducing the impurity in plastic material, this implementation The transfer tube 10 of example includes the delivery pipe 12 for being socketed in 21 left end of communicating pipe and several auxiliary positioned at the left end of delivery pipe 12 Pipe 13 offers third flow channel d in auxiliary tube 13, and third flow channel d is connected with first runner a.Based on the above structure, in tradition In equipment, since the cross-sectional diameter of transfer tube 10 is larger, directly it is heated, the plastic material in transfer tube 10 is everywhere The temperature difference it is larger, be easy to cause in plastic material biggish particle and need additive of higher temperature etc. that can not be completely melt, So as to cause generating impurity in plastic material；The present embodiment is by setting transfer tube 10 to by multiple auxiliary tubes 13 and defeated The structure for sending pipe 12 to connect respectively heats the plastic material being located in auxiliary tube 13 by heating device, simultaneously as Third flow channel d is connected with first runner a, and the plastic material after heating, which can be concentrated, to be flowed into delivery pipe 12, convenient for injection molding The progress of process.Since the diameter of auxiliary tube 13 is less than 12 diameter of delivery pipe, heat transfer can be better achieved, ensure that plastic cement Being completely melt for bulky grain and additive in raw material, ensure that the degree of purity of plastic material, improves the quality of injecting products.

To protect motor 41, safeguards the stable of the nozzle arrangements, be provided through in delivery pipe 12 in the present embodiment The collet 42 of 12 periphery wall of delivery pipe, the transmission shaft of motor 41 passes through collet 42 and ball 30 is sequentially connected.More than being based on Structure is arranged collet 42 in the outside of transmission shaft, can incite somebody to action since plastic material temperature is higher and has certain corrosivity Plastics virgin rubber completely cuts off the outside in the transmission shaft of motor 41, is effectively protected transmission shaft, extends the service life of motor 41.

To promote the heating effect in auxiliary tube 13, the present embodiment ring week on the periphery wall of auxiliary tube 13 heating is distributed with Silk 70, the heater strip 70 being distributed on auxiliary tube 13 by ring week heats auxiliary tube 13, facilitates in auxiliary tube 13 Heat transfer and plastic material is evenly heated.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported Used in other related technical areas, it is also included in the patent protection scope of the utility model.

Claims (7)

1. a kind of plastic injection molding machine nozzle arrangements, it is characterised in that: it includes transfer tube, the nozzle positioned at transfer tube right end, position In the ball in transfer tube and the motor positioned at the outside of transfer tube；First runner, the biography are offered in the transfer tube The right end of defeated pipe opens up through-hole；The nozzle includes the spray of the communicating pipe in first runner and the right end positioned at communicating pipe Central axial direction in head, the communicating pipe and spray head along communicating pipe offers second flow channel, the right end setting of the spray head For injection port；Fixing seat is provided on the periphery wall of the transfer tube, the motor is fixedly installed in fixing seat, the ball Diameter be greater than the diameter of second flow channel, the connecting hole across ball, the ball and motor drive are offered on the ball Connection；The left end of the communicating pipe is set as the cambered surface being recessed to the left, and the central axial direction in the cambered surface along communicating pipe is opened Equipped with through-hole.

2. a kind of plastic injection molding machine nozzle arrangements as described in claim 1, it is characterised in that: on the periphery wall of the communicating pipe It is provided with limit base, the limit base is located at the left end of spray head, and the left side of the limit base is abutted with the right side of transfer tube.

3. a kind of plastic injection molding machine nozzle arrangements as claimed in claim 2, it is characterised in that: the fixed seating is in limit base Left side, the left side of the limit base extends fixed column along the central axial direction of limit base to the left, the fixed column It is tapped on the peripheral wall of left end, location hole is offered relative to fixed column in the fixing seat, the left end of the fixed column passes through Location hole is located at the left side of fixing seat, is provided with location nut, a left side for the location nut and fixed column on the left of the fixing seat End is threadedly coupled, and the fixed column is set as two and contraposition is distributed in the upper and lower ends of limit base, and the location hole is set as Two and contraposition are distributed in the upper and lower ends of fixing seat.

4. a kind of plastic injection molding machine nozzle arrangements as claimed in any one of claims 1-3, it is characterised in that: the communicating pipe It is inside provided with cylindrical strainer, the peripheral wall of the strainer is abutted with the internal perisporium of communicating pipe, and the strainer is located at communicating pipe Right end, it is described filter top line of the net communicating pipe axis direction offer several filter hole.

5. a kind of plastic injection molding machine nozzle arrangements as claimed in any one of claims 1-3, it is characterised in that: the transfer tube Including being socketed in the delivery pipe of communicating pipe left end and being opened up in several auxiliary tubes of the left end of delivery pipe, the auxiliary tube There is third flow channel, the third flow channel is connected with first runner.

6. a kind of plastic injection molding machine nozzle arrangements as claimed in claim 5, it is characterised in that: be provided with and wear on the transfer tube The collet of delivery pipe periphery wall is crossed, the transmission shaft of the motor passes through collet and connect with Ball Transmission.

7. a kind of plastic injection molding machine nozzle arrangements as claimed in claim 5, it is characterised in that: on the periphery wall of the auxiliary tube Ring week is provided with heater strip.