Double-end injection molding device for injection molding of plastic remote control car shell

Abstract

The utility model relates to the technical field of injection molding devices, in particular to a double-head injection molding device for injection molding of a plastic remote control car shell, molten materials are extruded into a mold to form a product in an injection molding mode, the double-head injection molding device comprises a rack, an injection molding assembly installed on one side of the rack and a mold closing assembly installed on the other side of the rack, a first mold mounting plate is arranged at the discharging end of the sleeve, the first mold mounting plate is fixed to the top of the rack, a first flow divider used for dividing materials is arranged in the first mold mounting plate, and two injection molding heads are connected to the first flow divider through pipelines; according to the utility model, the spiral heating wire is sleeved on the pipeline of the first flow divider and is used for increasing the heating area, so that the heating is more uniform, the heating speed is high, and meanwhile, air is introduced into the injection molding head in a matched manner to blow blocked materials into the sleeve, so that the waste of the materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding devices, in particular to a double-head injection molding device for injection molding of a plastic remote control car shell. Background Art

[0002] The injection molding machine uses the thrust of the screw (or plunger) to inject the plasticized molten state (i.e. viscous flow state) plastic into the closed mold cavity, and obtains the product after solidification and shaping. The double-head injection molding machine has two injection devices and can process two molds at the same time. The use of two injection molding devices leads to a complex structure and high cost.

[0003] Chinese patent CN214872465U discloses a double-head injection molding device for plastic products, including a main box, a propulsion conduit is arranged inside the main box, a first heating plate is fixedly connected to the inner wall of one side of the propulsion conduit, a third connecting tube is fixedly connected to one end of the propulsion conduit, and the upper and lower ends of the third connecting tube are slidably connected to the second connecting tube, a heater is fixedly connected to one side of each group of the second connecting tubes, a heat-conducting rod is fixedly connected to one end of each group of the heaters, a heat-conducting plate is fixedly connected to one end of each group of the heat-conducting rods, and the heat-conducting plate is fixedly connected to the inner wall of the second connecting tube. The patent sets a heating plate in the injection head to melt the material, and squeezes out the blocked material through the screw to avoid clogging of the injection head.

[0004] In the above structure, a heater is used to heat the material blocked in the injection molding head, and the blocked material is squeezed out by rotating the injection screw. However, in actual operation, after the injection molding machine is shut down, there is not enough material in the machine, and the rotation of the screw often makes it difficult to completely squeeze out the material in the injection molding head, resulting in the blockage problem not being fundamentally solved. At the same time, the blocked material is directly discharged to the outside of the machine, causing material waste. Utility Model Content

[0005] The purpose of the utility model is to provide a double-head injection molding device for plastic remote control car shell injection molding, which adopts a spiral heating wire sleeved on the pipeline of the first diverter to increase the heating area, make the heating more uniform, and heat the material quickly. At the same time, air is introduced into the injection molding head to blow the blocked material into the sleeve to avoid material waste.

[0006] In order to solve the problems of the prior art, the utility model provides a double-head injection molding device for injection molding of a plastic remote control car shell, which squeezes molten material into a mold for injection molding into a product, comprises a frame, an injection molding component installed on one side of the frame and a clamping mold component installed on the other side of the frame, the injection molding component comprises a sleeve, a first mold mounting plate is provided at the discharge end of the sleeve, the first mold mounting plate is fixed to the top of the frame, a first diverter for diverting material is provided in the first mold mounting plate, and two injection molding heads are connected to the first diverter through a pipeline, a spiral heating wire for heating is provided on the outside of the pipeline on the first diverter, and an anti-blocking component for avoiding blockage of the injection molding head is provided between the injection molding component and the clamping mold component.

[0007] Preferably, the anti-clogging component includes a second diverter that can move up and down and reciprocate along the injection direction. The second diverter is provided with a sealer corresponding to the two injection heads. The sealer is sleeved on the injection head. The sealer is also provided with an outlet head for exhausting gas, and the outlet head is inserted into the injection hole on the injection head.

[0008] Preferably, an air pipe interface for connecting to an air pipe is provided at one end of the second diverter away from the sealer, and a channel for gas communication is provided inside the second diverter, and the channel connects the air pipe interface and the air outlet head.

[0009] Preferably, the anti-blocking component also includes a second telescopic driving component for moving the second diverter up and down, and the output end of the second telescopic driving component is fixedly connected to the second diverter. The anti-blocking component also includes a movable plate that moves back and forth along the injection molding direction, and the second telescopic driving component is fixed on the movable plate.

[0010] Preferably, the anti-blocking component includes a bracket symmetrically installed on the top of the frame, a screw is rotatably arranged on the bracket, the screw is movably connected to the movable plate, and a rotating drive member for driving the screw to reciprocate is also installed on the bracket, and the output end of the rotating drive member is fixedly connected to the screw.

[0011] Preferably, a barrel for storing material to be melted is provided at one end of the top of the sleeve away from the clamping assembly, an injection screw for extruding the molten material into the mold is also provided inside the sleeve, a heater for heating the inside of the sleeve is also provided outside the sleeve, and the injection molding assembly also includes a driving mechanism installed on the top of the frame for driving the injection molding screw to rotate.

[0012] Preferably, the mold clamping assembly includes a first telescopic driving member that moves back and forth, the output end of the first telescopic driving member is connected to a push plate, and the push plate is connected to the second mold mounting plate via a connecting sleeve.

[0013] Preferably, the second mold mounting plate is also provided with a demoulding component for demoulding the mold.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the double-head injection molding device for plastic remote control car shell injection molding has a reasonable structure and has the following advantages:

[0015] (1) A spiral heating wire is installed on the pipe on the first diverter. The spiral shape of the spiral heating wire increases the heating area and rate, thereby preventing the blocked material from being heated unevenly and difficult to extrude. A second diverter is provided at the same time. The second diverter is provided with a gas outlet head, which is inserted into the injection molding head. By passing gas from the gas outlet head, the material is blown into the sleeve for reuse, thereby avoiding material waste;

[0016] (2) The present application installs a sealer on the second diverter, and the sealer is sleeved on the injection head. The sealer blocks the injection head to avoid the problem of gas leakage during ventilation, which affects the blowing of blocked materials into the sleeve;

[0017] (3) The present application adopts a second telescopic driving member to make the second diverter rise, and it can be moved upward when not in use without affecting subsequent injection molding. At the same time, in conjunction with the movement of the second diverter, the air outlet head is automatically inserted into the second diverter to achieve the function of automatic cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first three-dimensional structural schematic diagram of a double-head injection molding device for injection molding of a plastic remote control car shell;

[0019] Figure 2 It is a top view structural schematic diagram of a double-head injection molding device for injection molding of a plastic remote control car shell;

[0020] Figure 3 It is a schematic diagram of the anti-blocking component structure of a double-head injection molding device for injection molding of a plastic remote control car shell;

[0021] Figure 4 It is an exploded three-dimensional structural schematic diagram of a double-head injection molding device for injection molding of a plastic remote control car shell;

[0022] Figure 5 It is a double-head injection molding device for plastic remote control car shell injection molding. Figure 4 The enlarged structural diagram at A in the middle;

[0023] Figure 6 The utility model is a schematic diagram of the internal three-dimensional structure of a double-head injection molding device for injection molding of a plastic remote control car shell.

[0024] The numbers in the figure are: 1, frame; 11, injection molding component; 111, sleeve; 1111, barrel; 1112, heater; 1113, injection molding screw; 1114, first diverter; 1115, injection molding head; 1116, spiral heating wire; 1117, first mold mounting plate; 12, mold clamping component; 121, first telescopic drive member; 1211, push plate; 1212, second mold mounting plate; 13, anti-blocking component; 131, bracket; 1311, screw; 1312, rotating drive member; 1313, moving plate; 1314, second telescopic drive member; 1315, second diverter; 1316, sealer; 1317, trachea interface; 1318, air outlet head; 14, demoulding component. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Reference Figure 1-Figure 6 As shown, the utility model provides: a double-head injection molding device for injection molding of a plastic remote control car shell, which squeezes molten material into a mold for injection molding into a product, including a frame 1, an injection molding component 11 installed on one side of the frame 1 and a clamping component 12 installed on the other side of the frame 1, the injection molding component 11 includes a sleeve 111, the sleeve 111 provides a sealed and high-pressure resistant environment to ensure that the material can flow smoothly, and a first mold mounting plate 1117 is provided at the discharge end of the sleeve 111, the first mold mounting plate 1117 is fixed to the top of the frame 1, and the first mold mounting plate 1117 fixes the mold by bolts or a pressure plate. The first mold mounting plate 1117 is provided with a first diverter 1114 for diverting the material, and the first diverter 1114 is connected to two injection heads 1115 through a pipeline. The first diverter 1114 is used to divert the molten material from the sleeve 111 to the two injection heads 1115 to achieve double-head injection molding. The outer sleeve of the pipeline on the first diverter 1114 is provided with a spiral heating wire 1116 for heating. The spiral heating wire 1116 generates heat through electric current and transfers the heat to the pipeline to ensure that the material in the pipeline will not cool and solidify during the flow process. An anti-blocking component 13 is provided between the injection molding component 11 and the clamping component 12 to prevent the injection head 1115 from being blocked. The clamping component 12 is responsible for merging the two halves of the mold together to form a complete mold cavity for injection molding.

[0027] The anti-clogging component 13 includes a second diverter 1315 that can move up and down and reciprocate along the injection direction. The second diverter 1315 is provided with a sealer 1316 corresponding to the two injection heads 1115. The sealer 1316 is sleeved on the injection head 1115. The sealer 1316 and the injection head 1115 are tightly matched. When the second diverter 1315 moves, the sealer 1316 will move accordingly, so that the second diverter 1315 is sleeved on the injection head 1115 and remains sealed. This can prevent gas from leaking out during ventilation. The sealer 1316 is also provided with a gas outlet head 1318 for gas outlet. The gas outlet head 1318 is inserted into the injection hole on the injection head 1115. The gas is passed into the injection head 1115 through the gas outlet head 1318 to prevent the injection head 1115 from being blocked.

[0028] An end of the second flow divider 1315 away from the sealer 1316 is provided with an air pipe interface 1317 for connecting to an air pipe. A channel for gas communication is provided inside the second flow divider 1315, and the channel connects the air pipe interface 1317 and the air outlet 1318. The air pipe interface 1317 is generally designed as a threaded interface or a quick connector to facilitate connection with an external air pipe. When the external air pipe is connected to the air pipe interface 1317, the gas can smoothly enter the second flow divider 1315.

[0029] When the gas reaches the gas outlet head 1318 from the internal channel of the second flow divider 1315, the gas will enter the injection hole through the gas outlet head 1318. In this way, the material in the injection hole enters the sleeve 111 to prevent the injection head 1115 from being blocked.

[0030] The anti-blocking assembly 13 also includes a second telescopic driving member 1314 for moving the second diverter 1315 up and down, and the output end of the second telescopic driving member 1314 is fixedly connected to the second diverter 1315. The anti-blocking assembly 13 also includes a moving plate 1313 that moves back and forth along the injection direction, and the second telescopic driving member 1314 is fixed on the moving plate 1313. The second telescopic driving member 1314 is usually a linear driver, such as a cylinder, a hydraulic cylinder or an electric push rod. Its output end is fixedly connected to the second diverter 1315. When the second telescopic driving member 1314 is extended or shortened, it will drive the second diverter 1315 to move up and down, so that the sealer 1316 can be sleeved on the injection head 1115.

[0031] The anti-blocking component 13 includes a bracket 131 symmetrically installed on the top of the frame 1, a lead screw 1311 is rotatably arranged on the bracket 131, the lead screw 1311 is movably connected to a movable plate 1313, and a rotating driving member 1312 for driving the lead screw 1311 to reciprocate is also installed on the bracket 131, and the output end of the rotating driving member 1312 is fixedly connected to the lead screw 1311.

[0032] A barrel 1111 for storing the material to be melted is provided at one end of the top of the sleeve 111 away from the mold assembly 12. An injection screw 1113 for extruding the molten material into the mold is also provided inside the sleeve 111. A heater 1112 for heating the inside of the sleeve 111 is also provided outside the sleeve 111. The injection molding assembly 11 also includes a driving mechanism installed on the top of the frame 1 for driving the injection molding screw 1113 to rotate. The driving mechanism can be a motor or a mechanism that can make the injection molding screw 1113 rotate and perform linear reciprocating motion, which is a prior art.

[0033] During the injection molding process, plastic particles are added to the barrel 1111 through the hopper, and the plastic particles enter the sleeve 111. The heater 1112 heats the plastic particles inside the sleeve 111, causing the plastic particles to gradually melt. At the same time, the drive mechanism drives the injection screw 1113 to rotate and move forward, extruding the molten material from the sleeve 111 and injecting it into the mold through the injection head 1115. After the injection molding is completed, the mold is clamped by the clamping assembly 12 and held for a period of time to cool and solidify the plastic product. Then, the mold is opened, the product is taken out, and the injection molding process is completed.

[0034] The mold clamping assembly 12 includes a first telescopic driving member 121 that moves back and forth. The output end of the first telescopic driving member 121 is connected to a push plate 1211. The push plate 1211 is connected to a second mold mounting plate 1212 via a connecting sleeve. The second mold mounting plate 1212 is also provided with a demolding assembly 14 for demolding the mold.

[0035] When the mold needs to be closed, the first telescopic drive member 121 will extend, pushing the push plate 1211 and the second mold mounting plate 1212 to move forward together. In this way, the movable mold and the fixed mold of the mold will fit tightly together to form a closed cavity, ready for the injection molding process. After the mold is closed, the injection molding machine will inject the molten plastic into the mold cavity. After the injection molding is completed, the mold needs to be kept for a period of time to cool and solidify the plastic product. After the mold is opened, the demolding component 14 will work under the drive of the control system to eject or push the product out of the mold. The control system is generally a control panel, which is responsible for receiving and processing various input signals, and outputting corresponding control signals according to preset programs and parameters to drive each actuator to work.

[0036] Working principle: When the injection molding machine is not in use, a part of the material will remain in the first diverter 1114 and the injection head 1115, thereby blocking the first diverter 1114 and the injection head 1115. The spiral heating wire 1116 is sleeved on the outside of the pipe on the first diverter 1114. The spiral shape of the spiral heating wire 1116 increases the heating area and speed, avoiding uneven heating of the blocked material and making it difficult to extrude. At the same time, the rotary drive member 1312 is started, and the rotary drive member 1312 rotates the lead screw 1311, thereby moving the moving plate 1313. At this time, the second telescopic drive member 1314 is started, and the second telescopic drive member 1314 moves the second diverter 1315 downward, so that the sealer 1316 is aligned with the injection head 1115. Subsequently, the sealer 1316 is moved and sleeved on the injection head 1115, and the air outlet head 1318 is inserted into the injection hole in the injection head 1115, and the air pipe is connected to the air pump through the air pipe interface 1317, and the injection head 1115 is ventilated through the air pump to blow the molten material into the sleeve 111. Subsequently, the mold is installed on the injection molding machine, the material is poured into the barrel 1111, and the molten material is squeezed into the mold by the rotation of the injection screw 1113 for injection molding. After the mold is opened, the demolding assembly 14 is actuated to push the product out of the mold.

[0037] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A double-head injection molding device for plastic remote control car shell injection molding, which squeezes the molten material into the mold for injection molding into a product, characterized in that: The invention comprises a frame (1), an injection molding component (11) mounted on one side of the frame (1), and a clamping mold component (12) mounted on the other side of the frame (1); the injection molding component (11) comprises a sleeve (111); a first mold mounting plate (1117) is arranged at the discharge end of the sleeve (111); the first mold mounting plate (1117) is fixed to the top of the frame (1); a first flow divider (1114) for diverting materials is arranged in the first mold mounting plate (1117); two injection molding heads (1115) are connected to the first flow divider (1114) via a pipeline; a spiral heating wire (1116) for heating is arranged on the outside of the pipeline on the first flow divider (1114); and an anti-blocking component (13) for preventing the injection molding head (1115) from being blocked is arranged between the injection molding component (11) and the clamping mold component (12).

2. A double-head injection molding device for injection molding of a plastic remote control car shell according to claim 1, characterized in that: The anti-clogging component (13) comprises a second flow divider (1315) that can move up and down and reciprocate along the injection direction; the second flow divider (1315) is provided with a sealer (1316) corresponding to the two injection heads (1115); the sealer (1316) is sleeved on the injection head (1115); the sealer (1316) is also provided with an air outlet head (1318) for air outlet; the air outlet head (1318) is inserted into the injection hole on the injection head (1115).

3. A double-head injection molding device for injection molding of a plastic remote control car shell according to claim 2, characterized in that: An end of the second flow diverter (1315) away from the sealer (1316) is provided with an air pipe interface (1317) for connecting to an air pipe, and a channel for gas communication is provided inside the second flow diverter (1315), and the channel connects the air pipe interface (1317) and the air outlet (1318).

4. A double-head injection molding device for plastic remote control car shell injection molding according to claim 2, characterized in that: The anti-blocking component (13) further comprises a second telescopic driving member (1314) for moving the second diverter (1315) up and down, the output end of the second telescopic driving member (1314) being fixedly connected to the second diverter (1315), and the anti-blocking component (13) further comprises a moving plate (1313) that moves back and forth along the injection direction, the second telescopic driving member (1314) being fixed on the moving plate (1313).

5. A double-head injection molding device for injection molding of a plastic remote-controlled car shell according to claim 4, characterized in that: The anti-blocking component (13) comprises a bracket (131) symmetrically mounted on the top of the frame (1); a lead screw (1311) is rotatably mounted on the bracket (131); the lead screw (1311) is movably connected to a movable plate (1313); a rotating drive member (1312) for driving the lead screw (1311) to reciprocate is also mounted on the bracket (131); an output end of the rotating drive member (1312) is fixedly connected to the lead screw (1311).

6. A double-head injection molding device for injection molding of a plastic remote-controlled car shell according to claim 1, characterized in that: A material barrel (1111) for storing material to be melted is arranged at one end of the top of the sleeve (111) away from the mold clamping assembly (12); an injection screw (1113) for extruding the molten material into the mold is also arranged inside the sleeve (111); a heater (1112) for heating the inside of the sleeve (111) is also arranged outside the sleeve (111); and the injection molding assembly (11) further comprises a driving mechanism mounted on the top of the frame (1) for driving the injection molding screw (1113) to rotate.

7. A double-head injection molding device for injection molding of a plastic remote-controlled car shell according to claim 1, characterized in that: The mold clamping assembly (12) comprises a first telescopic driving member (121) that moves back and forth, the output end of the first telescopic driving member (121) being connected to a push plate (1211), and the push plate (1211) being connected to a second mold mounting plate (1212) via a connecting sleeve.

8. A double-head injection molding device for injection molding of a plastic remote-controlled car shell according to claim 7, characterized in that: The second mold mounting plate (1212) is also provided with a demoulding assembly (14) for demoulding the mold.

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