A continuous injection molding machine for lip gloss tubes

Abstract

The present invention relates to the technical field of injection molding machines, and more particularly to a continuous injection molding machine for lip gloss tubes, wherein the injection mold comprises a first mold core and a second mold core; a temperature regulating 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 chamber and a cold water chamber are provided in the temperature regulating device; a first valve block is movably provided at the hot water inlet; a hot water spring is provided at the hot water inlet; a second valve block is movably provided at the cold water inlet; a cold water spring is provided at the cold water inlet; a channel is provided through the first valve block and the second valve block; a valve ball is movably provided in the temperature regulating channel; the valve ball is used to seal the channel. The present invention can realize the preheating and cooling processes of the mold by providing the temperature regulating channel, and can return hot water to the hot water chamber and cold water to the cold water chamber by providing the first valve block, the second valve block and the valve ball, thereby effectively saving energy.

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] During the injection molding process for lip gloss tubes, the deep injection depth of the tubes can easily lead to uneven temperatures. This is especially true during deep-cavity injection molding, where the subsequent plastic material fails to reach sufficient temperature in time, resulting in surface marks on the molded part. Because the leading plastic has already partially solidified, the subsequent material cools more slowly, resulting in uneven cooling and surface defects. Existing mold cooling systems still have limitations when handling deep-cavity injection molding, and cannot effectively prevent defects caused by large temperature differences, which can affect the appearance and quality of the molded part. 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 objectives of the present invention are achieved through the following technical solutions: A continuous injection molding machine for lip gloss tubes, comprising a frame; the frame is provided with an injection mold and a temperature control 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 that cooperates with the first mold cavity; a temperature control 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 control device; the hot water inlet and the hot water outlet are respectively connected to the hot water cavity; and 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 by a channel; a valve ball is provided in the temperature regulating flow channel for sealing; the valve ball is used to seal the channel.

[0007] The present invention is further configured such that the temperature regulating flow channel is arranged 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 that cooperates 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; the second mold core is provided with a guide column at one end 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; and the temperature control device is rotatably arranged at the center of the guide plate.

[0012] The present invention is further configured such that a ejection plate is movably provided at one end of the second mold core away from the first mold core; an ejection spring is provided between the ejection plate and the second mold core; the ejection 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 piece; and the temperature regulating device is provided with a sensor that cooperates with the arc-shaped sensing piece.

[0015] Beneficial effects of the present invention: The present invention can realize the preheating and cooling process of the mold by setting a 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 a first valve block, a second valve block and a valve ball, which can effectively save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The invention is further described with reference to 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 making any creative effort.

[0017] Figure 1 It is a structural schematic diagram 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 This is a cross-sectional view of the present invention after the frame is hidden;

[0020] Figure 4 This is a structural schematic diagram of the temperature control 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 This is a structural schematic diagram of the injection mold of the present invention from another perspective;

[0023] Among them: 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. Limiting column; 23. Limiting spring; 3. Second mold core; 32. Second mold cavity; 33. Limiting 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 with reference to 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 control 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; a temperature control flow channel 4 is provided in the second mold core 3; 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 control 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 both 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 larger 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 flow 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 abuts 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, 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 flow 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 flow channel 4 through the channel 55 of the second valve block 53 and pushing the valve ball 56 to move, the temperature regulating flow 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 abutted against the first valve block 51, pushing the first valve block 51 to compress the hot water spring 52, so that the cold water outlet 42 is opened. 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 circuit, which can effectively cool the material of the second mold core 3. In addition, since 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 providing 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 providing 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. This arrangement can effectively preheat and cool the second mold core 3.

[0031] In this embodiment of the continuous injection molding machine for lip gloss tubes, a cold water pump is provided in the cold water chamber, and a hot water pump is provided in the hot water chamber. While the cold water pump and hot water pump are not shown in the figure, this arrangement enables both cold water and hot water circulation.

[0032] This embodiment describes a continuous injection molding machine for lip gloss tubes. The frame 1 is equipped with a fixed base 12; the fixed base 12 is equipped with a drive motor 13; the output end of the drive motor 13 is connected to a rotating base 14; the first mold core 2 is mounted on the rotating base 14; the rotating base 14 is provided with an injection port 15 that communicates with the first mold cavity 21; and the frame 1 is equipped with a syringe 16 that cooperates with the injection port 15. Specifically, this arrangement allows multiple injection molds 11 to be placed circumferentially on the rotating base 14. These multiple injection molds 11 sequentially pass through the syringe 16, thereby achieving 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 limiting post 22; the second mold core 3 is provided with a limiting groove 33; the limiting post 22 is movably inserted into the limiting groove 33; a limiting spring 23 is provided between the limiting groove 33 and the limiting post 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 arcuate groove 61 and a second arcuate groove 62; the depth of the first arcuate groove 61 is greater than the depth of the second arcuate groove 62; the second mold core 3 is provided with a guide post 63 at one end away from the first mold core 2; the guide post 63 is movably mounted in the circular guide groove; the position of the injector 16 is arranged corresponding to the second arcuate groove 62; and the temperature control device 9 is rotatably mounted 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 curved surface 73 and a second curved surface 74; the depth of the first curved surface 73 is greater than the depth of the second curved surface 74; the lift plate 7 is movably provided between the first curved surface 73 and the second curved surface 74; the position of the first curved surface 73 corresponds to the position of the first curved 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 arcuate groove 62, due to the shallow depth of the second arcuate 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 is completed, the injection mold 11 continues to rotate. When it moves to the position of the first arcuate groove 61, the second mold core 3 is moved away from the first mold core 2 under the action of the limit spring 23. At this time, the ejector plate 7 is still at the position of the second arcuate surface 74, that is, the relative position between the ejector plate 7 and the second mold core 3 changes, so that the ejector pin 72 ejects the product from the second mold core 3. The injection mold 11 continues to rotate until the ejector plate 7 rotates to the position of the first arcuate 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, thereby separating the ejector pin 72 from the product, completing the product unloading process.

[0035] In the continuous injection molding machine for lip gloss tubes described in this embodiment, the guide plate 6 is provided with an arcuate sensing piece 8; the temperature control device 9 is provided with a sensor 91 that cooperates with the arcuate sensing piece 8; and the temperature control device 9 rotates with the rotating base 14. Specifically, the provision of the arcuate sensing piece 8 and the sensor 91 enables the temperature control device 9 to sense the rotational position of the injection mold 11, that is, the current state of the injection mold 11, thereby facilitating the operation of the hot water pump and the cold water pump.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions 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 solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A continuous injection molding machine for lip gloss tubes, characterized by: The invention comprises a frame; the frame is provided with an injection mold and a temperature control 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 cooperating with the first mold cavity; a temperature control 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 control device; the hot water inlet and the hot water outlet are respectively connected to the hot water cavity; and 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; a second valve block is movably provided at the cold water inlet; a cold water spring is provided at the cold water inlet; a channel is penetrated by the first valve block and the second valve block; a valve ball is movably provided in the temperature regulating flow channel for sealing; before injection molding, when the second mold core is preheated, hot water enters from the hot water inlet, and under the action of the hot water spring, the first valve block seals the cold water outlet, and the hot water from the hot water inlet enters the temperature regulating flow channel through the channel of the first valve block, and pushes the valve ball to move until the valve ball abuts against the second valve block, and pushes the second valve block to compress the cold water spring, so that the hot water outlet is opened, and the valve ball seals the channel of the second valve block, so that the cold water inlet In a sealed state, the hot water chamber, the hot water inlet and the hot water outlet form a water circuit circulation; after the injection molding is completed, when the second mold core is cooled, cold water enters from the cold water inlet, pushing the valve ball to move in the direction of the hot water inlet. Under the action of the cold water spring, the second valve block seals the hot water outlet, and at the same time, under the action of the hot water spring, the first valve block seals the cold water outlet; in the process of cold water entering the temperature regulating flow channel through the channel of the second valve block and pushing the valve ball to move, the hot water originally in the temperature regulating flow channel will flow back into the hot water chamber through the channel of the first valve block until the valve ball is abutted against the first valve block and the first valve block is pushed to compress the hot water spring, so that the cold water outlet is opened, and the valve ball seals the channel of the first valve block, so that the hot water inlet is in a sealed state. At this time, the cold water chamber, the cold water inlet and the cold water outlet form a water circuit circulation; 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 provided with an injection port communicating with the first mold cavity; the frame is provided with a syringe cooperating with the injection port; 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; a limiting spring is provided between the limiting groove and the limiting column.

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

4. The continuous injection molding machine for lip gloss tubes according to claim 1, 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; the second mold core is provided with a guide column at one end away from the first mold core; the guide column is movably arranged in the circular guide groove; the position of the syringe is set corresponding to the second arc groove; the temperature control device is rotatably arranged at the center of the guide plate; when the injection mold moves to the second arc groove, due to the shallow depth of the second arc groove, the second mold core moves toward the direction of the first mold core and the mold is closed. When the injection mold moves to the position of the syringe, the syringe performs injection molding from the injection port.

5. The continuous injection molding machine for lip gloss tubes according to claim 4, 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.

6. The continuous injection molding machine for lip gloss tubes according to claim 5, characterized in that: The guide plate is provided with a first curved surface and a second curved surface; the depth of the first curved surface is greater than the depth of the second curved surface; the ejector plate is movably arranged between the first curved surface and the second curved surface; after the injection molding is completed, the injection mold continues to rotate, and when it moves to the position of the first curved groove, the second mold core is moved away from the first mold core under the action of the limit spring, and at this time the ejector plate is still at the position of the second curved surface, and the relative position between the ejector plate and the second mold core changes, so that the ejector rod ejects the product from the second mold core, and the injection mold continues to rotate until the ejector plate rotates to the position of the first curved surface, under the action of the ejector spring, the ejector plate moves in the direction away from the first mold core, thereby separating the ejector rod from the product, and completing the unloading processing of the product.

7. The continuous injection molding machine for lip gloss tubes according to claim 4, characterized in that: The guide plate is provided with an arc-shaped induction piece; the temperature regulating device is provided with a sensor matched with the arc-shaped induction piece.

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