Automatic connector injection molding machine

Abstract

The utility model belongs to the technical field of injection molding processing, and particularly relates to an automatic connector injection molding machine which comprises a base, a machine barrel used for stirring injection molding liquid is installed on the base, a hopper communicated with the interior of the machine barrel is fixedly installed on the machine barrel, and a feeding port is further formed in one end of the machine barrel. A flow dividing bin is fixedly installed at the end, close to the feeding port, of the machine barrel, a first material cavity communicated with the feeding port is formed in the flow dividing bin, a second material cavity is formed in the position, above the first material cavity, in the flow dividing bin, a third material cavity is further formed in the flow dividing bin, and a first flow channel and a second flow channel are further formed in the flow dividing bin. According to the automatic connector injection molding machine, accurate distribution of injection molding liquid is ensured through a plurality of material cavities and accurate flow channel control in the flow dividing cabin, and automatic adjustment is performed according to the pressure and flow of the injection molding liquid through cooperation of a drainage pipe in the drainage cabin and an adjustable flow control structure, a sleeve, a baffle ring rod, a spring and a piston piece in the drainage cabin; and backflow is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technology field especially relates to a kind of automatic connector injection molding machine. BACKGROUND

[0002] Automatic connector injection molding machine is a kind of injection molding equipment for producing connector, with automation function.And connector is widely used in electronic, automobile and communication industry, for connecting circuit or mechanical system.Injection molding is the common method for manufacturing these connectors, because it can efficiently produce complex shape and fine structure.

[0003] In traditional injection molding machine, material (such as plastic particles) is melted and injected into mold to form the required parts.This process usually involves delivering injection liquid through runner system to each cavity of mold.However, many existing machines are equipped with only one runner, which means that all injection liquid must be extruded through this single path, thereby limiting production speed, especially in high-yield production that requires a large amount of material. SUMMARY

[0004] In order to overcome the defects of the prior art pointed out above, the present inventors have conducted in-depth research, and after a lot of creative labor, the present utility model is completed.

[0005] Specifically, the technical problem to be solved by the present utility model is to provide an automatic connector injection molding machine to solve the technical problem that the single runner cannot efficiently handle a large amount of injection liquid in high-yield production of the current injection device, resulting in slow production speed.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions:

[0007] An automatic connector injection molding machine, comprising a base, a machine cylinder for stirring injection liquid is installed on the base, a hopper connected to the inside of the machine cylinder is fixedly installed on the machine cylinder, an inlet is further provided at one end of the machine cylinder, and a valve for controlling the flow rate of liquid in the machine cylinder is further provided on the inlet;

[0008] A shunt cabin is fixedly installed at one end of the machine cylinder close to the inlet, a first material cavity is provided in the shunt cabin and connected to the inlet, a second material cavity is provided in the shunt cabin above the first material cavity and connected to the first material cavity, a third material cavity is further provided in the shunt cabin and connected to the first material cavity and the second material cavity through the second material cavity, the first material cavity and the third material cavity have the same diameter, and a first runner and a second runner are further provided in the shunt cabin and connected to the third material cavity and the first material cavity and the second material cavity, respectively, the number of second runners is two, and each corresponds to the first material cavity and the second material cavity;

[0009] The side of the shunt cabin is fixedly provided with a drainage cabin, and the drainage cabin is communicated with the shunt cabin through a first flow channel and a second flow channel.

[0010] As an improved technical solution, the top of the shunt cabin is fixedly provided with a cylinder, one end of a piston rod of the cylinder extending into the shunt cabin is fixedly provided with a plug head matched with the third material cavity, and one end of the plug head away from the piston rod of the cylinder is fixedly provided with a plug cone matched with the first material cavity.

[0011] As an improved technical solution, the drainage cabin is further arranged with drainage pipes corresponding to the first flow channel and the second flow channel, the first drainage cavity is arranged in the drainage pipe, the second drainage cavity is arranged in the drainage pipe and communicated with the shunt cabin at one end of the first drainage cavity close to the shunt cabin, and the first drainage cavity is fixedly provided with a discharge port at one end away from the second drainage cavity.

[0012] As an improved technical solution, the drainage pipe is further fixedly provided with a sleeve, and the sleeve is distributed along the axial direction of the drainage pipe through a stop ring rod, the stop ring rod is movably connected in the sleeve, a spring is arranged outside the stop ring rod in the sleeve, and the stop ring rod is integrally provided with a stop ring portion on the outside, and the two ends of the spring are connected with the sleeve and the stop ring portion respectively.

[0013] As an improved technical solution, one end of the stop ring rod extending out of the sleeve is fixedly provided with a piston sheet matched with the second drainage cavity, and the diameter of the piston sheet is smaller than the diameter of the first drainage cavity.

[0014] As an improved technical solution, the mold closing device comprises a demolding mechanism on the base, the demolding mechanism is arranged with injection molds for the shaped connector, and the injection molds are provided with injection ports corresponding to the discharge ports and communicated with the drainage pipes.

[0015] As an improved technical solution, one end of the stop ring rod extending out of the sleeve is fixedly provided with a piston sheet matched with the second drainage cavity, and the diameter of the piston sheet is smaller than the diameter of the first drainage cavity.

[0016] After the above technical solution is adopted, the beneficial effects of the present application are as follows:

[0017] 1. The utility model discloses, through the accurate flow passage control of multiple material cavities in the shunt cabin, ensure the accurate distribution of injection liquid, and through the cooperation between the stripping mechanism and the injection mold, the machine ensures that the connector can be stripped smoothly after injection molding. Once the injection liquid solidifies in the mold, the stripping mechanism starts quickly, and the finished product is pushed out of the mold, so that the machine can start the next injection cycle immediately.

[0018] 2. The utility model discloses, through the stripping mechanism and the injection mold's cooperation, the machine ensures that the connector can be stripped smoothly after injection molding. Once the injection liquid solidifies in the mold, the stripping mechanism starts quickly, and the finished product is pushed out of the mold, so that the machine can start the next injection cycle immediately.

[0019] 3. The utility model discloses, through the even distribution of heater along the machine cylinder, combine motor drive screw, ensure the uniform melting and continuous conveying of material, and the dynamic adjustment of plug head and plug cone driven by the air cylinder in the shunt cabin, so that injection liquid can be efficiently distributed to each flow passage according to demand, thereby greatly improving production efficiency and output. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawing needed to be used in the embodiment description, obviously, the drawing in the following description is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings. Among them:

[0021] Figure 1 It is the three-dimensional structure schematic diagram of the utility model automatic connector injection molding machine.

[0022] Figure 2 It is the sectional structure schematic diagram of the utility model automatic connector injection molding machine.

[0023] Figure 3 It is the sectional structure schematic diagram of the shunt cabin and the drainage cabin of the utility model automatic connector injection molding machine.

[0024] Figure 4 It is the sectional structure schematic diagram of the drainage pipe of the utility model automatic connector injection molding machine.

[0025] Figure 5 It is the structure schematic diagram of the clamping device of the utility model automatic connector injection molding machine.

[0026] Figure 6 It is the sectional structure schematic diagram of the machine cylinder of the utility model automatic connector injection molding machine.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1, base; 2, barrel; 3, hopper; 4, inlet; 5, distribution cabin; 501, first material cavity; 502, second material cavity; 503, third material cavity; 504, first flow channel; 505, second flow channel; 6, cylinder; 7, plug; 8, plug cone; 9, drainage cabin; 10, drainage pipe; 1001, first drainage cavity; 1002, second drainage cavity; 11, discharge port; 12, sleeve; 13, baffle rod; 14, spring; 15, piston sheet; 16, demolding mechanism; 17, injection mold; 18, injection port; 19, motor; 20, screw; 21, heater. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0031] Meanwhile, "and / or" or "and / or" appearing throughout the text means including three schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0032] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0033] For example, Figures 1 to 6As shown, the embodiment provides an automatic connector injection molding machine, which comprises a base 1, a machine cylinder 2 for stirring the injection liquid is installed on the base 1, a hopper 3 connected with the inside of the machine cylinder 2 is fixedly installed on the machine cylinder 2, an inlet 4 is further arranged at one end of the machine cylinder 2, a valve for controlling the flow rate of the liquid in the machine cylinder 2 is further arranged on the inlet 4, a flow distribution cabin 5 is fixedly installed on the end of the machine cylinder 2 close to the inlet 4, a first material cavity 501 communicated with the inlet 4 is arranged in the flow distribution cabin 5, a second material cavity 502 communicated with the first material cavity 501 is arranged in the flow distribution cabin 5 above the first material cavity 501, a third material cavity 503 communicated with the first material cavity 501 through the second material cavity 502 is further arranged in the flow distribution cabin 5, the first material cavity 501 and the third material cavity 503 have the same diameter, a first flow channel 504 and a second flow channel 505 communicated with the third material cavity 503 and the first material cavity 501 and the second material cavity 502 are further arranged in the flow distribution cabin 5, the number of the second flow channel 505 is two, and the second flow channel 505 corresponds to the first material cavity 501 and the second material cavity 502 respectively, a flow guide cabin 9 is fixedly installed on one side of the flow distribution cabin 5, and the flow guide cabin 9 is communicated with the flow distribution cabin 5 through the first flow channel 504 and the second flow channel 505, a mold closing device for shaping the connector is further arranged on the side of the flow guide cabin 9 away from the flow distribution cabin 5, the base 1 serves as the basis of the machine, providing stability and support, the machine cylinder 2 is used for stirring and heating the injection liquid, ensuring that the material reaches the appropriate temperature and fluidity before injection, the hopper 3 is fixed on the machine cylinder 2, used for adding raw materials to the machine cylinder 2, the inlet 4 is arranged at one end of the machine cylinder 2, provided with a valve to control the flow rate of the injection liquid, ensuring the accuracy of the injection process, the flow distribution cabin 5 is fixed beside the inlet 4, provided with multiple chambers inside, the first material cavity 501, the second material cavity 502 and the third material cavity 503 can be distributed through multiple stages, ensuring that the injection liquid can be uniformly and efficiently delivered to each cavity of the mold, reducing pressure loss and improving injection efficiency, the first flow channel 504 and the second flow channel 505 are used for the injection liquid to flow from the flow distribution cabin 5 to the mold through these flow channels.

[0034] A pneumatic cylinder 6 is fixedly installed on the top of the flow distribution cabin 5, a piston rod of the pneumatic cylinder 6 extends into the flow distribution cabin 5, one end of the piston rod is fixedly installed with a plug head 7 matched with the third material cavity 503, one end of the plug head 7 away from the piston rod in the pneumatic cylinder 6 is fixedly installed with a plug cone 8 matched with the first material cavity 501, under the driving of the piston rod in the pneumatic cylinder 6, when the injection liquid is less, the plug cone 8 is located in the first material cavity 501, the first material cavity 501 is communicated with the second flow channel 505, when the injection liquid is more, the plug cone 8 is located in the third material cavity 503, the second material cavity 502 is communicated with the second flow channel 505, the pneumatic cylinder 6 drives the plug head 7 and the plug cone 8 to move in the flow distribution cabin 5 to control the flow of the injection liquid, by adjusting the positions of the plug head 7 and the plug cone 8, the flow rate and pressure of the injection liquid can be dynamically controlled to adapt to different injection needs, ensuring the flexibility and controllability of the injection process.

[0035] The drainage tank 9 is also arranged with drainage pipes 10 corresponding to the first flow channel 504 and the second flow channel 505, and the drainage pipes 10 are each provided with a first drainage cavity 1001. The drainage pipes 10 are provided with a second drainage cavity 1002 at one end of the first drainage cavity 1001 close to the distribution tank 5, and the second drainage cavity 1002 is in communication with the distribution tank 5. The first drainage cavity 1001 is provided with a discharge port 11 at an end away from the second drainage cavity 1002. The drainage tank 9 is connected to the distribution tank 5 through the drainage pipes 10, and is provided with a plurality of drainage cavities and discharge ports 11 to promote the flow of the injection liquid from the distribution tank 5 to the mold, reduce the residence time of the material in the flow channel, improve the flowability and injection efficiency of the material, and reduce the waste of the material.

[0036] The drainage pipes 10 are also fixedly provided with sleeves 12, and the sleeves 12 are arranged along the axial direction of the drainage pipes 10 through the blocking ring rods 13. The sleeves 12 are movably connected with the blocking ring rods 13, and the sleeves 12 are provided with springs 14 outside the blocking ring rods 13. The blocking ring rods 13 are provided with an integrally formed blocking ring portion on the outside, and the two ends of the springs 14 are connected with the sleeves 12 and the blocking ring portion respectively. The springs 14 push the blocking ring rods 13 to move, and form a movable piston system in the drainage pipes 10.

[0037] One end of the blocking ring rod 13 extending out of the sleeve 12 is fixedly provided with a piston sheet 15 matched with the second drainage cavity 1002, and the diameter of the piston sheet 15 is smaller than that of the first drainage cavity 1001. The piston sheet 15 is kept sealed under the action of the spring 14 to control the flow of the injection liquid, prevent backflow, ensure the stability and consistency of the injection process, and reduce the waste of the material and pressure loss.

[0038] The mold closing device includes a demolding mechanism 16 on the base 1, and the demolding mechanism 16 is arranged with injection molds 17 for shaping connectors. The injection molds 17 are each provided with an injection port 18 corresponding to the discharge port 11 and in communication with the drainage pipes 10. The demolding mechanism 16 controls the opening and closing of the injection molds 17 to ensure that the connectors can be smoothly demolded after injection, reduce product defects, and improve production efficiency and product quality.

[0039] The motor 19 is fixedly provided at one end of the cylinder 2 away from the material inlet 4, and the output shaft of the motor 19 is drivingly connected with a screw rod 20. The cylinder 2 is arranged along the axial direction and is provided with a plurality of heaters 21. The motor 19 drives the screw rod 20 to rotate and push the material forward. Through the rotation of the screw rod 20, the material is uniformly pushed forward to ensure the continuity and stability of the injection process, improve the plasticizing effect of the material, and keep the material at an appropriate temperature through the heaters 21 to ensure good flowability and plasticity, provide necessary conditions for the injection process, prevent the material from being too cold or too hot, and ensure the injection quality.

[0040] In use, first, the raw materials such as plastic particles are poured into the hopper 3, which is connected with the machine barrel 2, to ensure the smooth entry of the materials, and the heater 21 provides uniform heat for the materials, and the motor 19 drives the screw 20 to rotate, pushing the materials forward and melting them to form injection liquid, then the injection liquid enters the distribution cabin 5 through the inlet 4, and the valve on the inlet 4 controls the flow rate to ensure the accuracy of the injection process, the first material cavity 501, the second material cavity 502 and the third material cavity 503 in the distribution cabin 5 are connected with the drainage cabin 9 through the first flow channel 504 and the second flow channel 505 respectively, and the piston rod of the air cylinder 6 drives the plug head 7 and the plug cone 8 to move in the distribution cabin 5, and the position thereof is adjusted according to the amount of the injection liquid, when the injection liquid is less, the plug cone 8 is located in the first material cavity 501 and communicates with the second flow channel 505, when the injection liquid is more, the plug cone 8 moves to the third material cavity 503, so that the second material cavity 502 communicates with the second flow channel 505, and this dynamic adjustment ensures that the injection liquid can be efficiently distributed to different flow channels, in the drainage cabin 9, a plurality of drainage pipes 10 correspond to each flow channel, and the first drainage cavity 1001 and the second drainage cavity 1002 are arranged in each drainage pipe 10 to ensure the smooth flow of the injection liquid, and the discharge port 11 is located at the end of the drainage pipe 10 and corresponds to the injection port 18 on the injection mold 17 to ensure that the injection liquid accurately enters the mold, and in the drainage pipe 10, the sleeve 12, the blocking ring rod 13, the spring 14 and the piston sheet 15 form an adjustable flow control valve, this system automatically adjusts according to the pressure and flow rate of the injection liquid to ensure the stability and consistency of the injection process, and since the diameter of the piston sheet 15 is designed to be smaller than the first drainage cavity 1001, backflow is prevented and the flow of the materials is optimized, when the injection liquid reaches the discharge port 11, it enters the injection mold 17 through the injection port 18, the opening and closing of the injection mold 17 is controlled through the demolding mechanism 16 to ensure that the connector can be smoothly demolded after injection, once the injection liquid solidifies in the mold to form the required connector shape, the demolding mechanism 16 is started to push the finished connector out of the mold, and the machine is immediately ready for the next injection cycle.

[0041] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the protection scope of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. An automated connector injection molding machine, characterized in that: Includes a base (1), on which a barrel (2) for stirring injection molding liquid is installed, and a hopper (3) connected to the inside of the barrel (2) is fixedly installed on the barrel (2). One end of the barrel (2) is also provided with a feed port (4), and the feed port (4) is also provided with a valve for controlling the flow rate of liquid in the barrel (2). A diversion chamber (5) is fixedly installed at one end of the barrel (2) near the feed inlet (4). A first material chamber (501) communicating with the feed inlet (4) is provided in the diversion chamber (5). A second material chamber (502) communicating with the first material chamber (501) is provided in the diversion chamber (5) and above the first material chamber (501). The diversion chamber (5) also has a second material chamber (502) communicating with the first material chamber (501). The third material chamber (503) and the first material chamber (501) and the third material chamber (503) have the same diameter. The diversion chamber (5) is also provided with a first flow channel (504) and a second flow channel (505) that are connected to the third material chamber (503), the first material chamber (501) and the second material chamber (502). There are two second flow channels (505), which correspond to the first material chamber (501) and the second material chamber (502) respectively. A flow guide chamber (9) is fixedly installed on one side of the flow divider chamber (5), and the flow guide chamber (9) is connected to the flow divider chamber (5) through the first flow channel (504) and the second flow channel (505) respectively. The flow guide chamber (9) is also provided with a mold closing device for the molding connector on the side away from the flow divider chamber (5).

2. The automated connector injection molding machine according to claim 1, characterized in that: A cylinder (6) is fixedly installed on the top of the flow divider (5). A plug (7) adapted to the third material chamber (503) is fixedly installed at one end of the piston rod of the cylinder (6) extending into the flow divider (5). A plug cone (8) adapted to the first material chamber (501) is fixedly installed at the end of the plug (7) away from the piston rod in the cylinder (6). When the piston rod in the cylinder (6) drives the flow divider to operate, the plug cone (8) is located in the first material chamber (501) when the injection liquid is low. The first material chamber (501) is connected to the second flow channel (505). When the injection liquid is high, the plug cone (8) is located in the third material chamber (503). The second material chamber (502) is connected to the second flow channel (505).

3. The automated connector injection molding machine according to claim 2, characterized in that: The diversion chamber (9) is also arranged with diversion pipes (10) corresponding to the first flow channel (504) and the second flow channel (505). Each diversion pipe (10) is provided with a first diversion cavity (1001). A second diversion cavity (1002) connected to the diversion chamber (5) is provided at the end of the diversion pipe (10) near the diversion chamber (5). A discharge port (11) is fixedly installed at the end of the first diversion cavity (1001) away from the second diversion cavity (1002).

4. The automated connector injection molding machine according to claim 3, characterized in that: A sleeve (12) is also fixedly installed in the drainage tube (10), and the sleeve (12) is distributed along the axial direction of the drainage tube (10) via a retaining ring rod (13). The retaining ring rod (13) is movably connected in the sleeve (12). A spring (14) is sleeved in the sleeve (12) and on the outside of the retaining ring rod (13). An integrally formed retaining ring part is provided on the outside of the retaining ring rod (13). The two ends of the spring (14) are respectively connected to the sleeve (12) and the retaining ring part.

5. The automated connector injection molding machine according to claim 4, characterized in that: The end of the retaining ring rod (13) extending outside the sleeve (12) is fixedly installed with a piston plate (15) that is compatible with the second drainage cavity (1002), and the diameter of the piston plate (15) is smaller than the diameter of the first drainage cavity (1001).

6. The automated connector injection molding machine according to claim 1, characterized in that: The mold closing device includes a demolding mechanism (16) located on the base (1). The demolding mechanism (16) is provided with injection molds (17) for plastic connectors. Each injection mold (17) is provided with an injection port (18) corresponding to the discharge port (11) and connected to the inside of the drain pipe (10).

7. The automated connector injection molding machine according to claim 6, characterized in that: A motor (19) is fixedly installed at one end of the barrel (2) away from the feed inlet (4). The output shaft of the motor (19) is connected to a screw (20), and several heaters (21) are arranged along the axial direction of the barrel (2).

Images