Splitter plate insert capable of rapidly changing color

Abstract

The utility model relates to the technical field of spreader plate inserts, in particular to a spreader plate insert capable of changing color quickly, a spreader plate part comprises a first feed port, a second feed port and a discharge port, the first feed port and the second feed port are respectively connected with different injection molding nozzles and are used for introducing molten plastic into the spreader plate part, and the discharge port is connected with the first feed port and the second feed port. The discharging opening is communicated with the mold containing cavity and is used for injecting molten plastic into the mold containing cavity; when the bent channel feed port leaves the first feed port, the bent channel discharge port leaves the discharge port, the hot runner is cut off, non-molten plastic is injected into the mold containing cavity, and the insert body in the rising state is rotated, so that when the straight channel feed port is aligned with the second feed port, and the straight channel discharge port is aligned with the discharge port, the hot runner is cut off; molten plastic can be injected into the mold containing cavity from the second feeding port, color changing is completed, the situation that the insert body is directly rotated to communicate with another channel when the previous injection molding channel is not cut off is avoided, and the situation that the quality of finished products is affected due to the fact that plastic of different colors is injected into the mold at the same time is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shunt plate insert technical field especially a quick color changing shunt plate insert. BACKGROUND

[0002] The shunt plate is also known as a hot runner shunt plate, and it is an important component of the hot runner system. It is a device used to distribute the plastic melt injected by the nozzle of an injection molding machine to each gate or cavity in the hot runner mold. It plays a key role in the injection molding process. The injection molding machine injects molten plastic into the main inlet of the shunt plate. The shunt plate distributes the plastic melt evenly to each branch flow channel through the internal flow channel system. Then, the plastic melt is transported to each gate of the mold through the branch flow channel, and finally enters the cavity to form a plastic product. During this process, the heating element continuously provides heat to the shunt plate to ensure that the plastic melt does not solidify during the distribution process and maintains good fluidity. The insert is located at the corner of the internal flow channel of the shunt plate. The streamlined round channel in the insert connects the internal flow channels of the shunt plate, optimizes the bending radius of the flow channel, and avoids sharp corners, reducing the accumulation of molten plastic in the corners.

[0003] Traditional inserts are mostly connected to different gates through direct rotation. If the gates are close, they may be connected to the channel in the insert at the same time during rotation, causing different colors of plastic to be injected into the mold at the same time, affecting the quality of the finished product. SUMMARY

[0004] The main purpose of the utility model is to provide a quick color changing shunt plate insert to solve the problem of inserts mostly connected to different gates through direct rotation in related technology.

[0005] To achieve the above purpose, according to one aspect of the utility model, a quick color changing shunt plate insert is provided, which includes: a shunt plate part, the shunt plate part includes a first feed inlet, a second feed inlet and a discharge outlet, the first feed inlet and the second feed inlet are respectively connected with different injection nozzles, used to introduce molten plastic into the shunt plate part, the discharge outlet is communicated with a mold cavity, used to inject molten plastic into the mold cavity;

[0006] an insert part, the insert part is rotatably arranged in the shunt plate part, the insert part includes a straight channel and a curved channel, the straight channel includes a straight channel feed inlet and a straight channel discharge outlet, the curved channel includes a curved channel feed inlet and a curved channel discharge outlet, when the insert part is rotated to align the straight channel feed inlet with the second feed inlet and the straight channel discharge outlet with the discharge outlet, the hot nozzle connected with the second feed inlet injects molten plastic into the mold cavity; when the insert part is rotated to align the curved channel feed inlet with the first feed inlet and the curved channel discharge outlet with the discharge outlet, the hot nozzle connected with the first feed inlet injects molten plastic into the mold cavity.

[0007] Further, the shunt plate part further comprises a shunt plate body, a containing groove group and a limiting groove group, the containing groove group comprises a containing cavity and an annular cavity, and the limiting groove group comprises a plurality of sliding grooves, a plurality of limiting grooves and a plurality of recesses.

[0008] Further, the containing cavity is arranged in the shunt plate body and used for containing the insert part, the annular cavity is located at the top outer ring of the containing cavity, the sliding grooves are all arranged in the shunt plate body and all communicate with the containing cavity, the limiting grooves are all arranged in the shunt plate body and all communicate with the containing cavity, and the recesses are all arranged in the shunt plate body and all communicate with the containing cavity and are located at one side of the bottom of the limiting grooves.

[0009] Further, the first feeding port, the second feeding port and the discharging port are all located in the shunt plate body and all communicate with the containing cavity.

[0010] Further, the insert part is located in the containing cavity, and the insert part further comprises a top cover part, a plurality of clamping parts, a spring and an insert body, the top cover part comprises a top cover, a protruding block and a plurality of protruding columns, the top cover is fixedly arranged at the top of the insert body, the protruding block is fixedly arranged at the top of the top cover, and the protruding columns are all fixedly arranged at both sides of the protruding block.

[0011] Further, the clamping parts are all fixedly arranged at the bottom surface of the top cover and located at the top outer ring of the insert body, and the spring is rotatably connected between the top end and the bottom end of the insert body and fixedly connected between the bottom end and the shunt plate body.

[0012] Further, the clamping parts comprise clamping blocks, ring columns and balls, the clamping blocks are fixedly connected between the top and the bottom of the top cover, the ring columns are fixedly arranged at the bottom of the clamping blocks, and the balls are rotatably arranged at the bottom of the ring columns.

[0013] Compared with the prior art, the utility model has the advantages that the straight channel feeding port and the straight channel discharging port are arranged along a straight line to avoid an angle, and the curved channel feeding port and the curved channel discharging port are connected through a streamlined smooth curve pipeline to avoid an angle, the insert body needs to be pulled upward to connect different feeding ports, when the insert body is pulled upward, the curved channel feeding port is away from the first feeding port, at the same time, the curved channel discharging port is away from the discharging port, the hot runner is cut off, the molten plastic is not injected into the mold cavity, when the insert body in the raised state is rotated and the straight channel feeding port is aligned with the second feeding port and the straight channel discharging port is aligned with the discharging port, the molten plastic can be injected into the mold cavity from the second feeding port to complete color changing, direct rotation of the insert body does not connect another channel when a previous injection channel is not cut off, different colors of plastic are prevented from being injected into the mold at the same time to affect the quality of finished products. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view that the insert part of the utility model is installed on the shunt plate.

[0015] Figure 2 is a sectional view of the split plate part of the utility model;

[0016] Figure 3 is a whole schematic view of the insert part of the utility model;

[0017] Figure 4 is a sectional view of the insert part of the utility model Figure 1 ;

[0018] Figure 5 is a sectional view of the insert part of the utility model Figure 2 ;

[0019] Figure 6 is a schematic view of the structure of the locking part of the utility model.

[0020] Illustration:

[0021] 1, split plate part; 11, split plate body; 12, cavity; 13, annular cavity; 14, first feed port; 15, second feed port; 16, discharge port; 17, chute; 18, limiting groove; 19, groove;

[0022] 2, insert part; 21, top cover; 22, protruding block; 23, protruding column; 24, locking part; 25, spring; 26, straight channel; 27, curved channel; 28, insert body; 241, locking block; 242, ring column; 243, ball; 261, straight channel feed port; 262, straight channel discharge port; 271, curved channel feed port; 272, curved channel discharge port. Specific implementation

[0023] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0024] Please refer to Figures 1 to 6 , the embodiment provides a kind of split plate insert of quick color change, comprising: split plate part 1, split plate part 1 includes first feed port 14, second feed port 15 and discharge port 16, first feed port 14 and second feed port 15 are respectively connected with different injection molding nozzle, for introducing molten plastic into split plate part 1, discharge port 16 is communicated with mould cavity, for molten plastic is injected into mould cavity;

[0025] The insert part 2 is rotatably arranged in the distribution plate part 1, and the insert part 2 comprises a straight channel 26 and a curved channel 27, the straight channel 26 comprises a straight channel inlet 261 and a straight channel outlet 262, and the curved channel 27 comprises a curved channel inlet 271 and a curved channel outlet 272; when the insert part 2 is rotated to align the straight channel inlet 261 with the second inlet 15 and the straight channel outlet 262 with the outlet 16, the hot nozzle connected with the second inlet 15 injects molten plastic into the mold cavity; when the insert part 2 is rotated to align the curved channel inlet 271 with the first inlet 14 and the curved channel outlet 272 with the outlet 16, the hot nozzle connected with the first inlet 14 injects molten plastic into the mold cavity.

[0026] The straight channel inlet 261 and the straight channel outlet 262 are arranged in a straight line to avoid corners, and the curved channel inlet 271 and the curved channel outlet 272 are connected by a streamlined smooth curved pipeline to avoid corners.

[0027] The distribution plate part 1 further comprises a distribution plate body 11, a container groove group and a limiting groove group, the container groove group comprises a container cavity 12 and an annular cavity 13, and the limiting groove group comprises a plurality of sliding grooves 17, a plurality of limiting grooves 18 and a plurality of recesses 19.

[0028] The container cavity 12 is arranged in the distribution plate body 11 and used for accommodating the insert part 2, the annular cavity 13 is located at the top outer circle of the container cavity 12 and used for accommodating the top cover 21, when the top cover 21 covers the annular cavity 13, the container cavity 12 is completely covered to avoid foreign matters falling into the container cavity 12, the sliding grooves 17 are all arranged in the distribution plate body 11 and all communicate with the container cavity 12, the limiting grooves 18 are all arranged in the distribution plate body 11 and all communicate with the container cavity 12, and the recesses 19 are all arranged in the distribution plate body 11 and all communicate with the container cavity 12 and located at one side of the bottom of the limiting grooves 18.

[0029] The first inlet 14, the second inlet 15 and the outlet 16 are all located in the distribution plate body 11 and all communicate with the container cavity 12, the second inlet 15, the outlet 16 and the straight channel 26 are on the same straight line to avoid corners and prevent molten plastic from accumulating in the straight channel 26.

[0030] The insert part 2 is located in the container cavity 12, and the insert part 2 further comprises a top cover part, a plurality of locking parts 24, springs 25 and an insert body 28, the top cover part comprises the top cover 21, a protruding block 22 and a plurality of protruding columns 23, the top cover 21 is fixedly arranged at the top of the insert body 28, the protruding block 22 is fixedly arranged at the top of the top cover 21, and the protruding columns 23 are all fixedly arranged at both sides of the protruding block 22 to increase the friction of the protruding block 22 and facilitate pulling the insert body 28 upward.

[0031] The locking portion 24 is fixedly arranged on the bottom surface of the top cover 21 and located at the top outer circle of the insert body 28, the top end of the spring 25 is rotationally connected with the bottom end of the insert body 28, and the bottom end is fixedly connected with the body 11 of the flow distribution plate.

[0032] The locking portion 24 comprises a locking block 241, a ring column 242 and a ball 243, the top of the locking block 241 is fixedly connected with the bottom of the top cover 21, the ring column 242 is fixedly arranged on the bottom of the locking block 241, and the ball 243 is rotationally arranged on the bottom of the ring column 242, when the locking portion 24 moves on the annular cavity 13, the ball 243 changes the sliding friction between the locking block 241 and the body 11 of the flow distribution plate into rolling friction, thereby reducing the friction force and being beneficial to the rotation of the insert body 28.

[0033] When the locking portion 24 is located in the corresponding sliding groove 17, the bent channel inlet 271 is opposite to the first inlet 14, at the same time, the bent channel outlet 272 is opposite to the outlet 16, the molten plastic flows into the bent channel 27 from the first inlet 14 and then is injected into the cavity of the mold from the outlet 16; when color changing is needed, the top cover 21 is lifted up by holding the protrusion 22, the spring 25 is elongated, the top cover 21 drives the locking portion 24 to move upwards along the sliding groove 17 through the insert body 28, when the locking portion 24 moves out of the sliding groove 17, the insert body 28 is rotated to drive the locking portion 24 to rotate to the limiting groove 18, the protrusion 22 is slowly released, the spring 25 rebounds and pulls down the insert body 28, the locking portion 24 moves downwards along with the insert body 28 and enters the limiting groove 18, the protrusion 22 is rotated again in the counterclockwise direction, the protrusion 22 drives the locking portion 24 to rotate into the groove 19 through the insert body 28, the groove 19 limits the rotation and the upward and downward movement of the locking portion 24, and the insert body 2 is limited in the cavity 12, at this time, the straight channel inlet 261 is opposite to the second inlet 15, at the same time, the straight channel outlet 262 is opposite to the outlet 16, the molten plastics of different colors flow into the straight channel 26 from the second inlet 15 and then are injected into the cavity of the mold from the outlet 16, and the injection molding of the plastics of different colors is completed.

[0034] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, although the present application has been disclosed as above with the preferred embodiment, however, it is not intended to limit the present application, any person skilled in the art, without departing from the technical scheme of the present application, can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, but as long as it does not depart from the technical scheme of the present application, any modification, equivalent change and modification of the above embodiment according to the technical essence of the present application, all still belong to the scope of the technical scheme of the present application.

Claims

1. A quick-change color-splitter plate insert, characterized in that, The utility model relates to a kind of injection molding machine, including: The shunt plate part (1) includes first feed port (14), second feed port (15) and discharge port (16), the first feed port (14) and second feed port (15) are connected with different injection molding nozzle respectively, for introducing molten plastic into shunt plate part (1), the discharge port (16) is communicated with mold cavity, for molten plastic is injected into mold cavity; Insert part (2) is rotationally arranged in shunt plate part (1), and the insert part (2) includes straight channel (26) and bend channel (27), the straight channel (26) includes straight channel feed port (261) and straight channel discharge port (262), the bend channel (27) includes bend channel feed port (271) and bend channel discharge port (272), when rotating insert part (2) makes straight channel feed port (261) align with second feed port (15), straight channel discharge port (262) aligns with discharge port (16), hot nozzle connected with second feed port (15) injects molten plastic into mold cavity;When rotating insert part (2) makes bend channel feed port (271) align with first feed port (14), bend channel discharge port (272) aligns with discharge port (16), hot nozzle connected with first feed port (14) injects molten plastic into mold cavity.

2. The quick-change color flow plate insert of claim 1, wherein, The shunt plate part (1) further includes shunt plate body (11), container groove group and limiting groove group, the container groove group includes cavity (12) and annular cavity (13), the limiting groove group includes several sliding grooves (17), several limiting grooves (18) and several recesses (19).

3. The quick-change color flow plate insert of claim 2, wherein, The cavity (12) is arranged in shunt plate body (11), for accommodating insert part (2), the annular cavity (13) is located at the top outer ring of the cavity (12), the sliding grooves (17) are all arranged in shunt plate body (11), and all are communicated with the cavity (12), the limiting grooves (18) are all arranged in shunt plate body (11), and all are communicated with the cavity (12), the recesses (19) are all arranged in shunt plate body (11), and all are communicated with the cavity (12), and are located at the bottom side of limiting groove (18).

4. The quick-change color flow plate insert of claim 2, wherein, The first feed port (14), second feed port (15) and discharge port (16) are all located in shunt plate body (11), and all are communicated with the cavity (12).

5. The quick-change color flow plate insert of claim 2, wherein, The insert part (2) is located in the cavity (12), and the insert part (2) further includes top cover part, several locking parts (24), spring (25) and insert body (28), the top cover part includes top cover (21), lug (22) and several convex columns (23), the top cover (21) is fixedly arranged at the top of insert body (28), the lug (22) is fixedly arranged at the top of top cover (21), and the convex columns (23) are all fixedly arranged on both sides of lug (22).

6. The quick-change color flow plate insert of claim 5, wherein, The locking parts (24) are all fixedly arranged on the bottom surface of top cover (21), and are located at the top outer ring of insert body (28), the top end of spring (25) is rotationally connected with the bottom end of insert body (28), and the bottom end is fixedly connected with shunt plate body (11).

7. The quick-change color flow plate insert of claim 5, wherein, The locking part (24) comprises a locking block (241), a ring column (242) and a ball (243), the top of the locking block (241) is fixedly connected with the bottom of the top cover (21), the ring column (242) is fixedly arranged at the bottom of the locking block (241), and the ball (243) is rotatably arranged at the bottom of the ring column (242).

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