Continuous injection molding machine for lip gloss tube

Abstract

The invention relates to the technical field of injection molding machines, in particular to a continuous injection molding machine for lip gloss tubes. A temperature adjusting runner is arranged in the second mold core; a hot water inlet and a cold water outlet are formed in one side of the second mold core; a hot water outlet and a cold water inlet are formed in the other side of the second mold core; a hot water cavity and a cold water cavity are formed in the temperature adjusting device; a first valve block is movably arranged at the hot water inlet; a hot water spring is arranged at the hot water inlet; a second valve block is movably arranged at the cold water inlet; a cold water spring is arranged at the cold water inlet; channels penetrate through the first valve block and the second valve block; a valve ball is movably arranged in the temperature adjusting flow channel in a sealed mode. And the valve ball is used for sealing the channel. By arranging the temperature adjusting runner, the preheating and cooling process of the mold can be achieved, by arranging the first valve block, the second valve block and the valve ball, hot water can flow back into the hot water cavity, cold water can flow back into the cold water cavity, and energy can be effectively saved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to a continuous injection molding machine for lip gloss tubes. Background Art

[0002] In the injection molding process of lip gloss tubes, due to the large injection depth of the injection tube, uneven temperature is prone to occur, especially in deep cavity injection molding, the subsequent injected plastic material fails to reach a sufficient temperature in time, resulting in marks on the surface of the molded part. Since the front plastic has been partially solidified, and the subsequent material cools slowly, it causes uneven cooling, resulting in surface defects. The existing mold cooling system still has certain limitations when dealing with deep cavity injection molding, and cannot effectively avoid defects caused by excessive temperature differences, affecting the appearance and quality of the injection molded parts. Summary of the invention

[0003] The object of the present invention is to provide a continuous injection molding machine for lip gloss tubes in view of the above-mentioned deficiencies in the prior art.

[0004] The object of the present invention is achieved through the following technical scheme: a continuous injection molding machine for lip gloss tubes, comprising a frame; the frame is provided with an injection mold and a temperature regulating device; the injection mold comprises a first mold core and a second mold core; the first mold core is provided with a first mold cavity; the second mold core is provided with a second mold cavity matched with the first mold cavity; a temperature regulating flow channel is provided in the second mold core; a hot water inlet and a cold water outlet are provided on one side of the second mold core; a hot water outlet and a cold water inlet are provided on the other side of the second mold core; a hot water cavity and a cold water cavity are provided in the temperature regulating device; the hot water inlet and the hot water outlet are respectively connected to the hot water cavity; the cold water inlet and the cold water outlet are respectively connected to the cold water cavity;

[0005] The hot water inlet and the cold water outlet are respectively connected to one end of the temperature regulating flow channel; the hot water outlet and the cold water inlet are respectively connected to the other end of the temperature regulating flow channel; a first valve block is movably provided at the hot water inlet; a hot water spring is provided at the hot water inlet; the hot water spring is used to drive the first valve block to seal the cold water outlet; a second valve block is movably provided at the cold water inlet; a cold water spring is provided at the cold water inlet; the cold water spring is used to drive the second valve block to seal the hot water outlet;

[0006] The first valve block and the second valve block are both penetrated with channels; a valve ball is provided in the temperature regulating flow channel for sealing and movement; the valve ball is used for sealing the channel.

[0007] The present invention is further configured such that the temperature regulating flow channel is configured in a serpentine shape.

[0008] The present invention is further configured such that a cold water pump is provided in the cold water chamber; and a hot water pump is provided in the hot water chamber.

[0009] The present invention is further configured as follows: the frame is provided with a fixed seat; the fixed seat is provided with a driving motor; the output end of the driving motor is connected to a rotating seat; the first mold core is provided on the rotating seat; the rotating seat is penetrated by an injection port connected to the first mold cavity; and the frame is provided with a syringe cooperating with the injection port.

[0010] The present invention is further configured such that the first mold core is provided with a limiting column; the second mold core is provided with a limiting groove; the limiting column is movably inserted into the limiting groove; and a limiting spring is provided between the limiting groove and the limiting column.

[0011] The present invention is further configured as follows: the frame is provided with a guide plate; the guide plate is provided with a circular guide groove; the circular guide groove includes a first arc groove and a second arc groove; the depth of the first arc groove is greater than the depth of the second arc groove; a guide column is provided at one end of the second mold core away from the first mold core; the guide column is movably arranged in the circular guide groove; the position of the syringe is arranged corresponding to the second arc groove; the temperature control device is rotatably arranged at the center of the guide plate.

[0012] The present invention is further configured such that a ejector plate is movably provided at one end of the second mold core away from the first mold core; an ejector spring is provided between the ejector plate and the second mold core; the ejector plate is provided with an ejector rod; and the ejector rod protrudes into the second mold cavity.

[0013] The present invention is further configured such that the guide plate is provided with a first arcuate surface and a second arcuate surface; the depth of the first arcuate surface is greater than the depth of the second arcuate surface; the ejecting plate is movably arranged between the first arcuate surface and the second arcuate surface; the position of the first arcuate surface is arranged corresponding to the position of the first arcuate groove.

[0014] The present invention is further configured such that the guide plate is provided with an arc-shaped sensing sheet; and the temperature regulating device is provided with a sensor that cooperates with the arc-shaped sensing sheet.

[0015] Beneficial effects of the present invention: The present invention can realize the preheating and cooling process of the mold by setting the temperature regulating flow channel, and can return hot water to the hot water chamber and return cold water to the cold water chamber by setting the first valve block, the second valve block and the valve ball, which can effectively save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2This is a schematic diagram of the structure of the present invention after the frame is hidden;

[0019] Figure 3 is a cross-sectional view of the present invention after the frame is hidden;

[0020] Figure 4 It is a structural schematic diagram of the temperature regulating seat of the present invention from another perspective;

[0021] Figure 5 It is a structural schematic diagram of the injection mold of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the injection mold of the present invention from another perspective;

[0023] Wherein: 1. frame; 11. injection mold; 12. fixed seat; 13. drive motor; 14. rotating seat; 15. injection port; 16. syringe; 2. first mold core; 21. first mold cavity; 22. limit column; 23. limit spring; 3. second mold core; 32. second mold cavity; 33. limit groove; 4. temperature control flow channel; 41. hot water inlet; 42. cold water outlet; 43. hot water outlet; 44. cold water inlet; 51. first valve block; 52. hot water spring; 53. second valve block; 54. cold water spring; 55. channel; 56. valve ball; 6. guide plate; 61. first arc groove; 62. second arc groove; 63. guide column; 7. ejector plate; 71. ejector spring; 72. ejector rod; 73. first arc surface; 74. second arc surface; 8. arc sensor; 9. temperature control device; 91. sensor. DETAILED DESCRIPTION

[0024] The present invention is further described in conjunction with the following examples.

[0025] Depend on Figures 1 to 6It can be seen that the continuous injection molding machine for lip gloss tubes described in this embodiment includes a frame 1; the frame 1 is provided with an injection mold 11 and a temperature regulating device 9; the injection mold 11 includes a first mold core 2 and a second mold core 3; the first mold core 2 is provided with a first mold cavity 21; the second mold core 3 is provided with a second mold cavity 32 that cooperates with the first mold cavity 21; the second mold core 3 is provided with a temperature regulating flow channel 4; a hot water inlet 41 and a cold water outlet 42 are provided on one side of the second mold core 3; a hot water outlet 43 and a cold water inlet 44 are provided on the other side of the second mold core 3; a hot water cavity and a cold water cavity are provided in the temperature regulating device 9; the hot water cavity and the cold water cavity are not drawn in the figure; the hot water inlet 41 and the hot water outlet 43 are respectively connected to the hot water cavity; the cold water inlet 44 and the cold water outlet 42 are respectively connected to the cold water cavity; the hot water inlet 41 is connected to the cold water cavity The water outlet 42 is respectively connected to one end of the temperature regulating flow channel 4; the hot water outlet 43 and the cold water inlet 44 are respectively connected to the other end of the temperature regulating flow channel 4; a first valve block 51 is movably provided at the hot water inlet 41; a hot water spring 52 is provided at the hot water inlet 41; the hot water spring 52 is used to drive the first valve block 51 to seal the cold water outlet 42; a second valve block 53 is movably provided at the cold water inlet 44; a cold water spring 54 is provided at the cold water inlet 44; the cold water spring 54 is used to drive the second valve block 53 to seal the hot water outlet 43; a channel 55 is penetrated by the first valve block 51 and the second valve block 53; a valve ball 56 is movably provided in the temperature regulating flow channel 4; the valve ball 56 is used to seal the channel 55; wherein the radius of the valve ball 56 is greater than the radius of the hot water outlet 43 and the radius of the cold water outlet 42;

[0026] Specifically, the continuous injection molding machine for lip gloss tubes described in this embodiment needs to preheat the second mold core 3 before injection molding between the first mold cavity 21 and the second mold cavity 32; the hot water in the hot water chamber enters from the hot water inlet 41, and under the action of the hot water spring 52, the first valve block 51 seals the cold water outlet 42, and the hot water in the hot water inlet 41 enters the temperature regulating channel 4 through the channel 55 of the first valve block 51, and pushes the valve ball 56 to move until the valve ball 56 is abutted against the second valve block 53, and pushes the second valve block 53 to compress the cold water spring 54, so that the hot water outlet 43 is opened, and the valve ball 56 seals the channel 55 of the second valve block 53, so that the cold water inlet 44 is in a sealed state. At this time, the hot water chamber, the hot water inlet 41 and the hot water outlet 43 form a water circuit circulation, which can effectively preheat the second mold core 3.

[0027] After the injection molding is completed, cold water needs to be injected into the second mold core 3 to quickly cool the material. At this time, the temperature regulating channel 4 is still full of hot water. First, the cold water in the cold water chamber enters from the cold water inlet 44, pushing the valve ball 56 to move in the direction of the hot water inlet 41. Under the action of the cold water spring 54, the second valve block 53 seals the hot water outlet 43. At the same time, under the action of the hot water spring 52, the first valve block 51 seals the cold water outlet 42. Therefore, in the process of cold water entering the temperature regulating channel 4 through the channel 55 of the second valve block 53 and pushing the valve ball 56 to move, the temperature regulating channel 4 is The hot water originally in the warm flow channel 4 will flow back into the hot water chamber through the channel 55 of the first valve block 51 until the valve ball 56 is pressed against the first valve block 51 and the first valve block 51 is pushed to compress the hot water spring 52, so that the cold water outlet 42 is opened, and the valve ball 56 seals the channel 55 of the first valve block 51, so that the hot water inlet 41 is in a sealed state. At this time, the cold water chamber, the cold water inlet 44 and the cold water outlet 42 form a water circulation, which can effectively cool the material of the second mold core 3; and because the hot water flows back into the hot water chamber, it can effectively save energy.

[0028] Similarly, when preheating is needed again, the cold water flows back into the cold water chamber from the cold water inlet 44, which can effectively save energy.

[0029] This embodiment can realize the preheating and cooling process of the mold by setting the temperature regulating flow channel 4, and can return hot water to the hot water chamber and return cold water to the cold water chamber by setting the first valve block 51, the second valve block 53 and the valve ball 56, which can effectively save energy.

[0030] In the continuous injection molding machine for lip gloss tubes described in this embodiment, the temperature regulating flow channel 4 is arranged in a serpentine shape. The above arrangement can effectively preheat and cool the second mold core 3.

[0031] In the continuous injection molding machine for lip gloss tubes described in this embodiment, a cold water pump is provided in the cold water chamber, and a hot water pump is provided in the hot water chamber. The cold water pump and the hot water pump are not shown in the figure, but the above arrangement can realize cold water circulation and hot water circulation.

[0032] In the continuous injection molding machine for lip gloss tubes described in this embodiment, the frame 1 is provided with a fixed seat 12; the fixed seat 12 is provided with a driving motor 13; the output end of the driving motor 13 is connected to a rotating seat 14; the first mold core 2 is provided on the rotating seat 14; the rotating seat 14 is penetrated by an injection port 15 connected to the first mold cavity 21; the frame 1 is provided with a syringe 16 matched with the injection port 15. Specifically, through the above arrangement, multiple injection molds 11 can be placed on the rotating seat 14 along the circumferential direction, and the multiple injection molds 11 pass through the position of the syringe 16 in sequence, thereby realizing continuous injection molding.

[0033] In the continuous injection molding machine for lip gloss tubes described in this embodiment, the first mold core 2 is provided with a limit column 22; the second mold core 3 is provided with a limit groove 33; the limit column 22 is movably arranged in the limit groove 33; a limit spring 23 is arranged between the limit groove 33 and the limit column 22. In the continuous injection molding machine for lip gloss tubes described in this embodiment, the frame 1 is provided with a guide plate 6; the guide plate 6 is provided with a circular guide groove; the circular guide groove includes a first arc groove 61 and a second arc groove 62; the depth of the first arc groove 61 is greater than the depth of the second arc groove 62; the second mold core 3 is provided with a guide column 63 at one end away from the first mold core 2; the guide column 63 is movably arranged in the circular guide groove; the position of the injector 16 is arranged corresponding to the second arc groove 62; the temperature regulating device 9 is rotatably arranged at the center of the guide plate 6. In the continuous injection molding machine for lip gloss tubes described in this embodiment, a lift plate 7 is movably provided at one end of the second mold core 3 away from the first mold core 2; a lift spring 71 is provided between the lift plate 7 and the second mold core 3; the lift plate 7 is provided with a lift rod 72; the lift rod 72 protrudes into the second mold cavity 32. In the continuous injection molding machine for lip gloss tubes described in this embodiment, the guide plate 6 is provided with a first arc surface 73 and a second arc surface 74; the depth of the first arc surface 73 is greater than the depth of the second arc surface 74; the lift plate 7 is movably provided between the first arc surface 73 and the second arc surface 74; the position of the first arc surface 73 is set corresponding to the position of the first arc groove 61.

[0034] Specifically, in the continuous injection molding machine for lip gloss tubes described in this embodiment, when the injection mold 11 moves to the second arc groove 62, due to the shallow depth of the second arc groove 62, the second mold core 3 moves toward the first mold core 2 and the mold is closed. When the injection mold 11 moves to the position of the syringe 16, the syringe 16 performs injection molding from the injection port 15; after the injection molding is completed, the injection mold 11 continues to rotate, and when it moves to the position of the first arc groove 61, the second mold core 3 is moved away from the first mold core 2 under the action of the limit spring 23, and at this time, the ejector plate 7 is still at the position of the second arc surface 74, that is, the relative position between the ejector plate 7 and the second mold core 3 changes, so that the ejector rod 72 ejects the product from the second mold core 3, and the injection mold 11 continues to rotate until the ejector plate 7 rotates to the position of the first arc surface 73. Under the action of the ejector spring 71, the ejector plate 7 moves in a direction away from the first mold core 2, so that the ejector rod 72 is separated from the product, and the unloading process of the product is completed.

[0035] In the continuous injection molding machine for lip gloss tubes described in this embodiment, the guide plate 6 is provided with an arc-shaped sensing piece 8; the temperature regulating device 9 is provided with a sensor 91 that cooperates with the arc-shaped sensing piece 8; wherein the temperature regulating device 9 rotates following the rotating seat 14. Specifically, by providing the arc-shaped sensing piece 8 and the sensor 91, the temperature regulating device 9 can sense the rotation position of the injection mold 11, that is, it can sense the current state of the injection mold 11, so as to facilitate driving the hot water pump and the cold water pump to work.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A continuous injection molding machine for lip gloss tubes, characterized in that: The invention comprises a frame; the frame is provided with an injection mold and a temperature regulating device; the injection mold comprises a first mold core and a second mold core; the first mold core is provided with a first mold cavity; the second mold core is provided with a second mold cavity matched with the first mold cavity; a temperature regulating flow channel is provided in the second mold core; a hot water inlet and a cold water outlet are provided on one side of the second mold core; a hot water outlet and a cold water inlet are provided on the other side of the second mold core; a hot water cavity and a cold water cavity are provided in the temperature regulating device; the hot water inlet and the hot water outlet are respectively connected to the hot water cavity; the cold water inlet and the cold water outlet are respectively connected to the cold water cavity; The hot water inlet and the cold water outlet are respectively connected to one end of the temperature regulating flow channel; the hot water outlet and the cold water inlet are respectively connected to the other end of the temperature regulating flow channel; a first valve block is movably provided at the hot water inlet; a hot water spring is provided at the hot water inlet; the hot water spring is used to drive the first valve block to seal the cold water outlet; a second valve block is movably provided at the cold water inlet; a cold water spring is provided at the cold water inlet; the cold water spring is used to drive the second valve block to seal the hot water outlet; The first valve block and the second valve block are both penetrated with channels; a valve ball is provided in the temperature regulating flow channel for sealing and movement; the valve ball is used for sealing the channel.

2. A continuous injection molding machine for lip gloss tubes according to claim 1, characterized in that: The temperature regulating flow channel is arranged in a serpentine shape.

3. A continuous injection molding machine for lip gloss tubes according to claim 1, characterized in that: A cold water pump is arranged in the cold water chamber; and a hot water pump is arranged in the hot water chamber.

4. A continuous injection molding machine for lip gloss tubes according to claim 1, characterized in that: The frame is provided with a fixed seat; the fixed seat is provided with a driving motor; the output end of the driving motor is connected to a rotating seat; the first mold core is provided on the rotating seat; the rotating seat is penetrated by an injection port connected to the first mold cavity; the frame is provided with a syringe cooperating with the injection port.

5. A continuous injection molding machine for lip gloss tubes according to claim 4, characterized in that: The first mold core is provided with a limiting column; the second mold core is provided with a limiting groove; the limiting column is movably arranged in the limiting groove; and a limiting spring is arranged between the limiting groove and the limiting column.

6. A continuous injection molding machine for lip gloss tubes according to claim 5, characterized in that: The frame is provided with a guide plate; the guide plate is provided with a circular guide groove; the circular guide groove includes a first arc groove and a second arc groove; the depth of the first arc groove is greater than the depth of the second arc groove; a guide column is provided at one end of the second mold core away from the first mold core; the guide column is movably arranged in the circular guide groove; the position of the syringe is arranged corresponding to the second arc groove; the temperature control device is rotatably arranged at the center of the guide plate.

7. A continuous injection molding machine for lip gloss tubes according to claim 6, characterized in that: An ejector plate is movably provided at one end of the second mold core away from the first mold core; an ejector spring is provided between the ejector plate and the second mold core; the ejector plate is provided with an ejector rod; and the ejector rod protrudes into the second mold cavity.

8. A continuous injection molding machine for lip gloss tubes according to claim 7, characterized in that: The guide plate is provided with a first arc surface and a second arc surface; the depth of the first arc surface is greater than the depth of the second arc surface; the ejector plate is movably arranged between the first arc surface and the second arc surface; the position of the first arc surface is arranged corresponding to the position of the first arc groove.

9. A continuous injection molding machine for lip gloss tubes according to claim 6, characterized in that: The guide plate is provided with an arc-shaped induction sheet; and the temperature regulating device is provided with a sensor matched with the arc-shaped induction sheet.

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