Injection mold for lipstick tube processing

Abstract

The injection mold for lipstick tube processing comprises a main frame, a mold fixing frame is fixedly installed at one end of the top of the main frame, a fixed mold assembly is fixedly installed on one side of the mold fixing frame, a heat removal assembly is fixedly installed on the other side of the mold fixing frame, and a circulating cooling assembly is communicated between the heat removal assembly and the fixed mold assembly; a pushing assembly is installed on one side of the main frame, a movable mold assembly is fixedly installed at one end of the pushing assembly, and a demolding assembly is slidably installed on the movable mold assembly. According to the injection mold for lipstick tube machining, in the injection molding process through the circulating cooling assembly, the product size is more stable, and it is avoided that bubbles are generated and demolding is difficult; heat of the mold is continuously and efficiently taken away through the heat removal assembly, so that the stability of the product quality and the production efficiency are ensured, lipstick tubes subjected to demolding can be tidily fed through the conveying assembly, then the next working procedure is performed, the products do not need to be manually collected one by one and tidily arranged, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lipstick tube processing, and specifically relates to an injection mold for lipstick tube processing. Background Art

[0002] Lipstick is a kind of cosmetic mainly used on the lips to increase or change the color of the lips. It is one of the important makeup products. The lipstick shell, as the container for lipstick, is usually injection-molded, and an injection mold is required during the processing of the injection-molded parts of the lipstick shell.

[0003] However, for the cooling system of the existing lipstick tube injection mold, the cooling time of the mold is too long, the cooling of the molten plastic is uneven, the surface temperature of the lipstick shell is uneven, resulting in bubbles and it may not be possible to completely take out the lipstick tube during demolding, reducing the working efficiency of the machine and the injection molding quality. Some lipstick tube injection molds may also require manual demolding, which is laborious. The blanking after demolding also requires manual operation, reducing the working efficiency, and the products are randomly scattered after demolding, and it is necessary to manually collect and arrange the products one by one. This process consumes a lot of time and manpower. Especially during large-scale production, the low efficiency of manual sorting will become a bottleneck in the production process and seriously affect the overall production progress.

[0004] Therefore, an injection mold for lipstick tube processing is needed. Summary of the Invention

[0005] The purpose of the present invention is to provide an injection mold for lipstick tube processing, so as to solve the problems in the above-mentioned background art that for the cooling system of the existing lipstick tube injection mold, the cooling time of the mold is too long, the cooling of the molten plastic is uneven, the surface temperature of the lipstick shell is uneven, resulting in bubbles and it may not be possible to completely take out the lipstick tube during demolding, reducing the working efficiency of the machine and the injection molding quality. Some lipstick tube injection molds may also require manual demolding, which is laborious. The blanking after demolding also requires manual operation, reducing the working efficiency, and the products are randomly scattered after demolding, and it is necessary to manually collect and arrange the products one by one. This process consumes a lot of time and manpower. Especially during large-scale production, the low efficiency of manual sorting will become a bottleneck in the production process and seriously affect the overall production progress.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection mold for processing lipstick tubes, comprising a main frame, four corners of the bottom of the main frame are fixedly installed with supporting legs, the middle of the main frame is provided with a slot, the bottom of the slot is fixedly installed with a discharge pipe, one end of the top of the main frame is fixedly installed with a mold fixing frame, one side of the mold fixing frame is fixedly installed with a fixed mold assembly, the other side of the mold fixing frame is fixedly installed with a heat exhaust assembly, a circulating cooling assembly is connected between the heat exhaust assembly and the fixed mold assembly, a sliding assembly is provided at the other end of the top of the main frame, one side of the main frame is installed with a propulsion assembly for mold closing, one end of the propulsion assembly is fixedly installed with a movable mold assembly, a demolding assembly for demolding is slidably installed on the movable mold assembly, and a conveying assembly is arranged below the discharge pipe.

[0007] Preferably, a control panel is fixedly installed on one side of one of the legs, and a transmission switch, a propulsion switch, a demoulding switch, a water pumping switch, a heat dissipation switch, a vibration switch and a feeding switch are installed in sequence on the surface of the control panel, so that each step of injection molding can be pre-set, including the sequence and time parameters of a series of actions such as mold closing, injection, pressure holding, cooling, mold opening, and demoulding. In this way, during the production process, the injection molding machine can automatically operate according to the preset program, reducing errors and labor intensity of manual operation.

[0008] Preferably, the fixed mold assembly includes a fixed mold plate, four corners of one side of the fixed mold plate are provided with closed grooves, a plurality of fixed mold grooves are symmetrically installed in the middle of one side of the fixed mold plate, a hollow cooling cavity is provided inside the fixed mold plate, an injection port is provided on one side of the mold fixing frame, an injection channel connected with the plurality of fixed mold grooves is provided at one end of the injection port, a water inlet connected with the hollow cooling cavity is provided at one end of the top of the fixed mold plate, a water outlet connected with the hollow cooling cavity is provided at the other end of the top of the fixed mold plate, and after the mold is closed, the interiors of multiple fixed molds can be injected simultaneously through the injection channel through the injection port, thereby improving work efficiency, and the groove-type fixed mold can effectively limit the shape of the plastic melt through its precisely machined groove cavity, thereby ensuring that the outer diameter and other dimensions of the lipstick tube meet the design standards.

[0009] Preferably, the heat exhaust component includes a radiator, which is fixedly mounted on the mold fixing frame, with connecting ports installed at both ends of the top of the radiator, and a heat dissipation fan fixedly mounted on one side of the radiator, which can ensure that the cooling water can stably play a cooling role in the entire injection molding process, continuously and efficiently take away the heat of the mold, thereby ensuring the stability of product quality and production efficiency.

[0010] Preferably, the circulating cooling component includes a water pump and a second connecting pipe. The water pump is fixedly installed on the top of the fixed template. The water outlet end of the water pump is communicated with a water inlet pipe. One end of the water inlet pipe is communicated with the water inlet. The second connecting pipe is communicated between the water outlet and a communication port. The water inlet end of the water pump is communicated with a first connecting pipe. One end of the first connecting pipe is communicated with the other communication port. During the injection molding process, the water cooling can quickly take away the heat of the plastic melt, enabling the product to cool and solidify faster, allowing the product to be demolded faster, thereby improving the production efficiency. At the same time, the rapid cooling can also reduce the shrinkage time of the plastic in the cavity, which is beneficial to better control the dimensional accuracy of the product, making the product size more stable and avoiding the difficulty of demolding due to air bubbles.

[0011] Preferably, the propulsion component includes a fixed plate. The fixed plate is fixedly installed on one side of the main frame. A hydraulic cylinder is fixedly installed on the top of the fixed plate. The output end of the hydraulic cylinder is fixedly connected to a connecting plate. The thrust of the hydraulic cylinder can be selected according to actual needs, and it can easily push the fixed mold to move in the chute to ensure the normal opening and closing of the mold. Generally speaking, the thrust of the hydraulic cylinder can range from several thousand Newtons to several hundred thousand Newtons, which is sufficient to meet the requirements of various molds and can also make the fixed mold accurately stop at the preset position each time, and the error range can be controlled to a very small degree.

[0012] Preferably, the moving mold component includes a moving mold mounting frame. The moving mold mounting frame is fixedly connected to one side of the connecting plate. Four corners on one side of the moving mold mounting frame are fixedly installed with limit rods corresponding to the closing grooves. A plurality of moving mold rods corresponding to the fixed mold grooves are symmetrically installed in the middle of one side of the moving mold mounting frame. During the injection molding process of the lipstick tube, the cylindrical moving mold can ensure its concentricity with the fixed mold, guaranteeing the accuracy of the inner and outer diameters of the lipstick tube in the circumferential direction, which helps to produce products with high dimensional accuracy and stable quality. The cylindrical surface of the cylindrical moving mold has a relatively large and uniform contact area with the fixed mold during mold closing, making the mold closing process more stable.

[0013] Preferably, the demolding component includes a demolding plate. The demolding plate is slidably installed outside between the four limit rods. A plurality of through grooves corresponding to the moving mold rods are formed in the middle of the demolding plate. The through grooves are movably connected to the outside of the moving mold rods. Two electric push rods are fixedly installed at both ends of one side of the demolding plate. One end of the electric push rod is fixedly installed on one side of the moving mold mounting frame. The demolding plate is directly installed on the moving mold, and it has a high synchronization with the movement of the moving mold, and can accurately push the product out of the mold cavity, avoiding adhesion or scratching between the product and the mold, and can effectively maintain the shape accuracy of the product, enabling the dimensional tolerance of the product to be controlled within a very small range.

[0014] Preferably, the sliding assembly includes two chutes which are respectively arranged on both sides of one end of the top surface of the main frame. A sliding block is slidably installed inside the chute. The tops of the two sliding blocks are respectively fixedly installed at both ends of the bottom of the moving mold mounting frame. During the mold opening and closing process, the moving mold moving along the chute can ensure the accuracy of its movement trajectory. Limited by the chute, the moving mold can accurately cooperate with the fixed mold according to the set trajectory each time, thereby ensuring the stability of the product size accuracy.

[0015] Preferably, the conveying assembly includes a conveyor. An output motor is installed at one end of one side of the conveyor. A feeding box is installed at one end of the conveyor. The feeding box is arranged below the discharge pipe. A vibration motor is fixedly installed inside the cavity of the feeding box. A cylinder is fixedly installed inside the box body. The top of the cylinder is fixedly installed with a feeding plate. The feeding plate is slidably installed inside the feeding box. The vibration motor is electrically connected to an external power supply through a vibration switch. The cylinder is electrically connected to an external power supply through a feeding switch; the upper surfaces of the cavity above the top of the vibration motor and the feeding plate are both inclined towards one side of the conveyor at the same angle; the upper surface of the cavity is a horn-shaped diversion cavity with a gradually decreasing space from one side to one side of the feeding plate. The surface of the feeding plate is matched with the upper surface of the cavity so that the lipstick tubes fall neatly on the surface of the feeding plate. A diversion plate matched with the feeding plate is arranged on the conveyor for neatly conveying the lipstick tubes; it reduces the time and links of manual operation, avoids production stagnation caused by manual collection and sorting of lipstick tubes, thereby effectively improving production efficiency, enabling it to quickly carry out the next process, and increasing the product output per unit time.

[0016] Compared with the prior art, the beneficial effects of the present invention are: During the injection molding process by the circulating cooling component, water cooling can quickly take away the heat of the plastic melt, enabling the product to cool and solidify faster, allowing the product to be demolded faster, thereby improving production efficiency. At the same time, rapid cooling can also reduce the shrinkage time of the plastic in the cavity, which is beneficial to better controlling the dimensional accuracy of the product, making the product size more stable and avoiding bubbles that are difficult to demold; Through the heat discharge component, it can ensure that the cooling water can stably play a cooling role throughout the injection molding process, continuously and efficiently taking away the heat of the mold, thereby ensuring the stability of product quality and production efficiency; Through the tight cooperation between the groove-shaped fixed mold and the cylindrical moving mold, the position deviation during the mold closing process can be effectively reduced, ensuring that the dimensional accuracy of each part of the lipstick tube meets the requirements; Through the demolding component, the product can be accurately pushed out of the mold cavity, avoiding adhesion or scratching between the product and the mold, effectively maintaining the shape accuracy of the product, and enabling the dimensional tolerance of the product to be controlled within a very small range; Through the conveying component, after the lipstick tube is demolded, it can be neatly loaded, and then transmitted through the conveyor for the next process, eliminating the need for manual collection and arrangement of products one by one, thus improving work efficiency. Brief Description of the Drawings

[0017] Figure 1 It is the front three-dimensional structure diagram of the injection mold of the present invention; Figure 2 It is the back three-dimensional structure diagram of the injection mold of the present invention; Figure 3 It is the front view of the injection mold of the present invention; Figure 4 It is the top view of the injection mold of the present invention; Figure 5 It is the sliding component diagram of the injection mold of the present invention; Figure 6 It is the fixed mold component diagram of the injection mold of the present invention; Figure 7 It is the circulating cooling component diagram of the injection mold of the present invention; Figure 8 It is the heat dissipation component diagram of the injection mold of the present invention; Figure 9 It is the conveying component diagram of the injection mold of the present invention; Figure 10 It is the top view of the feeding box of the injection mold of the present invention.

[0018] In the figure: 1, main frame; 2, support legs; 3, notch; 4, discharge pipe; 5, control panel; 6, mold fixing frame; 7, conveyor; 8, feeding box; 9, vibration motor; 10, output motor; 11, fixing plate; 12, hydraulic cylinder; 13, connecting plate; 14, moving mold mounting frame; 15, limiting rod; 16, demolding plate; 17, moving mold rod; 18, electric push rod; 19, fixed template; 20, closing groove; 21, fixed mold groove; 22, hollow cooling cavity; 23, injection channel; 24, injection port; 25, water inlet; 26, water outlet; 27, water inlet pipe; 28, water pump; 29, first connecting pipe; 30, second connecting pipe; 31, communication port; 32, cold row; 33, cooling fan; 34, sliding block; 35, sliding groove; 36, cylinder; 37, feeding plate. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Please refer to Figures 1-9, the present invention provides an injection mold for processing lipstick tubes, which includes a main frame 1. Four corners at the bottom of the main frame 1 are fixedly installed with legs 2. A notch 3 is formed in the middle of the main frame 1. A discharge pipe 4 is fixedly installed at the bottom of the notch 3. One end at the top of the main frame 1 is fixedly installed with a mold fixing frame 6. A fixed mold assembly is fixedly installed on one side of the mold fixing frame 6. A heat dissipation assembly is fixedly installed on the other side of the mold fixing frame 6. A circulating cooling assembly is connected between the heat dissipation assembly and the fixed mold assembly. A sliding assembly is formed at the other end at the top of the main frame 1. A propulsion assembly for mold closing is installed on one side of the main frame 1. One end of the propulsion assembly is fixedly installed with a moving mold assembly. A demolding assembly for demolding is slidably installed on the moving mold assembly. A conveying assembly is arranged below the discharge pipe 4.

[0021] Refer to Figure 2 , on one side of one of the legs 2, a control panel 5 is fixedly installed. A transmission switch, a propulsion switch, a demolding switch, a water pumping switch, a heat dissipation switch, a vibration switch, and a feeding switch are sequentially installed on the surface of the control panel 5. The mold is centrally controlled through the control panel 5. The output motor 10 is electrically connected to an external power supply through the transmission switch. The hydraulic cylinder 12 is electrically connected to an external power supply through the propulsion switch. The electric push rod 18 is electrically connected to an external power supply through the demolding switch. The water pump 28 is electrically connected to an external power supply through the water pumping switch. The heat dissipation fan 33 is electrically connected to an external power supply through the heat dissipation switch. Each step of injection molding is preset, including the sequence and time parameters of a series of actions such as mold closing, injection, pressure holding, cooling, mold opening, and demolding. Through the controller, the injection molding machine and the mold can automatically operate according to the preset program. When it is necessary to perform feeding and transmission on the lipstick tube after demolding for the next process, the vibration motor 9 can be controlled to work through the vibration switch, and the cylinder 36 can be controlled to work through the feeding switch for feeding and transmission.

[0022] Refer to Figure 6 , the fixed mold assembly includes a fixed mold plate 19. Four corners on one side of the fixed mold plate 19 are each provided with a closing groove 20. A plurality of fixed mold cavities 21 are symmetrically installed in the middle on one side of the fixed mold plate 19. A hollow cooling cavity 22 is provided inside the fixed mold plate 19. An injection port 24 is formed on one side of the mold fixing frame 6. An injection channel 23 communicating with the plurality of fixed mold cavities 21 is formed at one end of the injection port 24. An inlet 25 communicating with the hollow cooling cavity 22 is formed at one end at the top of the fixed mold plate 19. An outlet 26 communicating with the hollow cooling cavity 22 is formed at the other end at the top of the fixed mold plate 19. After the mold is closed, the molten injection material is injected through the injection port 24 by the injection molding machine. The molten injection material flows along the injection port 24 and the injection channel 23 communicating with the plurality of fixed mold cavities 21 and enters the interior of each fixed mold cavity 21 to fill the combined mold, and the injection molding is completed after the injection material fills the cavity.

[0023] Refer to Figure 8, the heat dissipation component includes a cold radiator 32, which is fixedly installed on the mold fixing frame 6. Both ends of the top of the cold radiator 32 are provided with communication ports 31. A cooling fan 33 is fixedly installed on one side of the cold radiator 32. After the cooling water absorbs the heat of the mold, its own temperature will also increase. When the cooling water enters the cold radiator 32 along the second connecting pipe 30, the cooling fan 33 is started to discharge the heat in the cooling water sucked into the cold radiator 32, and then the cooled water returns to the water pump 28 through the first connecting pipe 29, thereby ensuring the stability of product quality and production efficiency.

[0024] Refer to Figure 7 , the circulating cooling component includes a water pump 28 and a second connecting pipe 30. The water pump 28 is fixedly installed on the top of the fixed template 19. The water outlet end of the water pump 28 is communicated with a water inlet pipe 27, and one end of the water inlet pipe 27 is communicated with the water inlet 25. The second connecting pipe 30 is communicated between the water outlet 26 and a communication port 31. The water inlet end of the water pump 28 is communicated with a first connecting pipe 29, and one end of the first connecting pipe 29 is communicated with the other communication port 31. After the injection molding is completed, the water pump 28 is started, and the cooling water inside the hollow cooling cavity 22 is pumped out along the water outlet 26 through the second connecting pipe 30. The cooling water enters the cold radiator 32 along the second connecting pipe 30, is cooled by the cooling fan 33, and then returns to the water pump 28 through the first connecting pipe 29, and then returns to the inside of the hollow cooling cavity 22 through the water inlet pipe 27 and the water inlet 25 to cool the mold, so that the injection-molded lipstick tube is cooled and formed.

[0025] Refer to Figure 1 , the propulsion component includes a fixed plate 11, which is fixedly installed on one side of the main frame 1. A hydraulic cylinder 12 is fixedly installed on the top of the fixed plate 11. The output end of the hydraulic cylinder 12 is fixedly connected with a connecting plate 13. The hydraulic cylinder 12 is started through the set program line, and the hydraulic cylinder 12 pushes the connecting plate 13 at the output end forward. The hydraulic cylinder 12 has a large thrust, which is sufficient to meet the requirements of various molds.

[0026] Refer to Figure 3, the moving die assembly includes a moving die mounting frame 14, the moving die mounting frame 14 is fixedly connected to one side of the connecting plate 13, four corners on one side of the moving die mounting frame 14 are fixedly installed with limiting rods 15 corresponding to the closing grooves 20, and a plurality of moving die rods 17 corresponding to the fixed die grooves 21 are symmetrically installed in the middle of one side of the moving die mounting frame 14. When the connecting plate 13 at the output end of the hydraulic cylinder 12 is pushed forward for forward extension, the connecting plate 13 drives the moving die mounting frame 14 to move forward synchronously. When the moving die mounting frame 14 moves, it drives the four-corner limiting rods 15 and the plurality of moving die rods 17 in the middle to move synchronously, so that the limiting rods 15 move towards the fixed die grooves 21, and the moving die rods 17 move towards the corresponding fixed die grooves 21. When the hydraulic cylinder 12 is pushed to the maximum, the fixed die and the moving die are clamped, the limiting rods 15 are in contact with the fixed die grooves 21, and the moving die rods 17 are combined with the fixed die grooves 21 to form a complete mold.

[0027] Refer to Figure 1 , the demolding assembly includes a demolding plate 16, the demolding plate 16 is slidably installed outside between the four limiting rods 15, a plurality of through grooves corresponding to the moving die rods 17 are opened in the middle of the demolding plate 16, and the through grooves are movably connected to the outside of the moving die rods 17. Two electric push rods 18 are fixedly installed at both ends of one side of the demolding plate 16, and one end of the electric push rod 18 is fixedly installed on one side of the moving die mounting frame 14. After cooling, the hydraulic cylinder 12 works to drive the moving die mounting frame 14 to open and retract. The cooled lipstick tube will remain on the moving die rods 17. Then the electric push rod 18 works to push the demolding plate 16 forward along the limiting rods 15 to push the lipstick tubes on the plurality of moving die rods 17 for forward demolding. After demolding, the electric push rod 18 works to reset the demolding plate 16.

[0028] Refer to Figure 5 , the sliding assembly includes two sliding grooves 35, the two sliding grooves 35 are respectively opened on both sides of one end of the top surface of the main frame 1, sliding blocks 34 are slidably installed inside the sliding grooves 35, and the tops of the two sliding blocks 34 are respectively fixedly installed at both ends of the bottom of the moving die mounting frame 14. When the hydraulic cylinder 12 works to drive the moving die mounting frame 14 to move, it drives the two sliding blocks 34 at the bottom to slide inside the two sliding grooves 35 respectively, and the forward push of the moving die mounting frame 14 is made more stable through the two sliding grooves 35 and the sliding blocks 34.

[0029] Refer to Figure 9, the conveying assembly includes a conveyor 7, an output motor 10 is installed at one end of one side of the conveyor 7, a feeding box 8 is installed at one end of the conveyor 7, and the feeding box is arranged below the discharge pipe 4. A vibration motor 9 is fixedly installed in the cavity of the feeding box 8, and a cylinder 36 is fixedly installed inside the box 8. A feeding plate 37 is fixedly installed on the top of the cylinder 36, and the feeding plate 37 is slidably installed inside the feeding box 8. The vibration motor 9 is electrically connected to the external power supply through a vibration switch, and the cylinder 36 is electrically connected to the external power supply through the feeding switch. The upper surface of the cavity on the top of the vibration motor 9 and the feeding plate 37 are inclined to one side of the conveyor 7 at the same angle; the upper surface of the cavity is a trumpet-shaped guide cavity with a gradually decreasing space from one side to the side of the feeding plate 37. The surface of the feeding plate 37 cooperates with the shape of the upper surface of the cavity so that the lipstick tube falls neatly on the surface of the feeding plate 37. The conveyor 7 is provided with a guide plate that cooperates with the feeding plate 37 to transport the lipstick tube neatly; The interior of the loading box 8 has a cavity, and the vibration motor 9 is fixedly installed on the top of the cavity. The top of the cavity and the top of the loading plate 37 are inclined at the same angle. At the same time, the upper surface of the top of the cavity gradually presents a trumpet shape with a smaller opening from the side away from the loading plate 37 to the side close to the loading plate 37, until the opening is consistent with the cavity opening of the loading plate 37 for placing the lipstick tube. The conveyor 7 is also provided with a guide plate of the same size as the cavity opening of the loading plate 37 for placing the lipstick tube; the lipstick tube that is dropped after demoulding will fall into the interior of the loading box 8 below along the slot 3 and the discharge pipe 4, and multiple lipsticks will slide down along the unloading slope inside the loading box 8. The vibration motor 9 is started by the vibration switch to drive the unloading slope to vibrate and drive the lipstick tube above to vibrate, so as to avoid To prevent them from being mixed up, the trumpet-shaped guide cavity allows the lipstick tubes to follow the unloading slope to the top of the loading plate 37 in turn, and the loading switch controls the cylinder 36 to start. The cylinder 36 is connected to an automatic reciprocating control valve to enable the cylinder 36 to reciprocate and lift, continuously pushing the loading plate 37 to slide and lift inside the loading box 8, and intermittently raising the lipstick tubes on the top of the loading plate 37 to the top edge of the loading box 8 in turn, so that the lipstick tubes move along the slope of the loading plate 37 to the top of the conveyor 7, and the transmission switch controls the output motor 10 to start, driving the conveyor 7 to work. Under the action of the guide plate, the lipstick tubes are neatly transported to the next process by the conveyor 7, and there is no need to manually collect and organize the products one by one, thereby improving work efficiency.

[0030] When the embodiment of the present application is in use: The mold is centrally controlled through the control panel 5, and each step of injection molding is preset, including the sequence and time parameters of a series of actions such as mold closing, injection, pressure holding, cooling, mold opening, and demolding. Through the controller, the injection molding machine and the mold can automatically run according to the preset program. The hydraulic cylinder 12 is started through the set program line, and the hydraulic cylinder 12 pushes the connecting plate 13 at the output end forward. When the hydraulic cylinder 12 pushes the connecting plate 13 at the output end forward and extends forward, the connecting plate 13 drives the moving mold mounting frame 14 to move forward synchronously, driving the two sliding blocks 34 at the bottom to slide respectively inside the two sliding grooves 35. Through the two sliding grooves 35 and the sliding blocks 34, the forward push of the moving mold mounting frame 14 is more stable. When the moving mold mounting frame 14 moves, it drives the limiting rods 15 at the four corners and the multiple moving mold rods 17 in the middle to move synchronously, causing the limiting rods 15 to move towards the fixed mold groove 21 and the moving mold rods 17 to move towards the corresponding fixed mold groove 21. When the hydraulic cylinder 12 is pushed to the maximum, the fixed mold and the moving mold are closed, the limiting rod 15 fits with the fixed mold groove 21, and the moving mold rod 17 merges with the fixed mold groove 21 to form a complete mold. After the mold closing is completed, the molten injection molding material is injected through the injection port 24 by the injection molding machine. The molten injection molding material flows along the injection port 24 and the injection channels 23 communicating with the multiple fixed mold grooves 21 and enters the interior of each fixed mold groove 21 to fill the combined mold, and the injection molding is completed after the injection molding material fills the cavity. After the injection molding is completed, the water pump 28 is started, and the cooling water inside the hollow cooling cavity 22 is pumped out along the water outlet 26 through the second connecting pipe 30. The cooling water flows into the cold row 32 along the second connecting pipe 30, and the cooling fan 33 is started to discharge the heat in the cooling water sucked into the cold row 32. Then, the cooled water returns to the water pump 28 through the first connecting pipe 29 and re-enters the interior of the hollow cooling cavity 22 through the water inlet pipe 27 and the water inlet 25 to cool the mold, so that the injection-molded lipstick tube is cooled and formed. After the cooling is completed, the hydraulic cylinder 12 works to drive the moving mold mounting frame 14 to open and retract. The cooled lipstick tube will remain on the moving mold rod 17. Then, the electric push rod 18 works to push the demolding plate 16 forward along the limiting rod 15 to push the lipstick tubes on the multiple moving mold rods 17 forward for demolding. After the demolding is completed, the electric push rod 18 works to reset the demolding plate 16. After the reset is completed, it starts again from the first step in the set sequence of actions. The demolded lipstick tubes will fall along the slot 3 and the discharge pipe 4 into the upper feeding box 8 below. Multiple lipsticks slide down along the feeding slope inside the upper feeding box 8. The vibration switch is used to start the vibration motor 9, which drives the feeding slope to vibrate and drives the lipstick tubes above to vibrate to prevent them from being disordered and intertwined. The lipstick tubes sequentially reach the top of the feeding plate 37 along the feeding slope. The feeding switch is used to control the start of the cylinder 36. The cylinder 36 is connected with an automatic reciprocating control valve to make the cylinder 36 reciprocate up and down, continuously pushing the feeding plate 37 to slide up and down inside the upper feeding box 8.Intermittently raise the lipstick tubes on the top of the feeding plate 37 to the top edge of the feeding box 8 in sequence, so that the lipstick tubes move along the slope of the feeding plate 37 to the top of the conveyor 7. Start the output motor 10 by controlling through the transmission switch, drive the conveyor 7 to work, and transport the neatly arranged lipstick tubes on the conveyor 7 to the next process. There is no need for manual collection and arrangement of products one by one, improving work efficiency.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An injection mold for processing a lipstick tube, comprising a main frame (1), characterized in that: The four corners at the bottom of the main frame (1) are fixedly mounted with supporting legs (2); a slot (3) is provided in the middle of the main frame (1); a discharge pipe (4) is fixedly mounted at the bottom of the slot (3); a mold fixing frame (6) is fixedly mounted at one end of the top of the main frame (1); a fixed mold assembly is fixedly mounted on one side of the mold fixing frame (6); a heat exhaust assembly is fixedly mounted on the other side of the mold fixing frame (6); a circulating cooling assembly is connected between the heat exhaust assembly and the fixed mold assembly; a sliding assembly is provided at the other end of the top of the main frame (1); a propulsion assembly for mold closing is installed on one side of the main frame (1); a movable mold assembly is fixedly mounted on one end of the propulsion assembly; a demoulding assembly for demoulding is slidably mounted on the movable mold assembly; and a conveying assembly is arranged below the discharge pipe (4).

2. The injection mold for processing a lipstick tube according to claim 1, characterized in that: A control panel (5) is fixedly mounted on one side of one of the legs (2), and a transmission switch, a propulsion switch, a demoulding switch, a water pumping switch, a heat dissipation switch, a vibration switch and a feeding switch are sequentially mounted on the surface of the control panel (5).

3. The injection mold for processing a lipstick tube according to claim 1, characterized in that: The fixed mold assembly comprises a fixed mold plate (19), four corners of one side of the fixed mold plate (19) are each provided with a closed groove (20), a plurality of fixed mold grooves (21) are symmetrically installed in the middle of one side of the fixed mold plate (19), a hollow cooling cavity (22) is provided inside the fixed mold plate (19), an injection port (24) is provided on one side of the mold fixing frame (6), an injection channel (23) connected to the plurality of fixed mold grooves (21) is provided at one end of the injection port (24), a water inlet (25) connected to the hollow cooling cavity (22) is provided at one end of the top of the fixed mold plate (19), and a water outlet (26) connected to the hollow cooling cavity (22) is provided at the other end of the top of the fixed mold plate (19).

4. The injection mold for processing a lipstick tube according to claim 1, characterized in that: The heat dissipation component comprises a cold row (32), the cold row (32) is fixedly mounted on the mold fixing frame (6), both ends of the top of the cold row (32) are equipped with connecting ports (31), and a heat dissipation fan (33) is fixedly mounted on one side of the cold row (32).

5. The injection mold for processing a lipstick tube according to claim 4, characterized in that: The circulating cooling component comprises a water pump (28) and a second connecting pipe (30); the water pump (28) is fixedly mounted on the top of the fixed mold plate (19); the water outlet end of the water pump (28) is connected to a water inlet pipe (27); one end of the water inlet pipe (27) is connected to a water inlet (25); the second connecting pipe (30) is connected between the water outlet (26) and a connecting port (31); the water inlet end of the water pump (28) is connected to a first connecting pipe (29); one end of the first connecting pipe (29) is connected to another connecting port (31).

6. The injection mold for processing a lipstick tube according to claim 1, characterized in that: The propulsion assembly comprises a fixed plate (11), the fixed plate (11) being fixedly mounted on one side of the main frame (1), a hydraulic cylinder (12) being fixedly mounted on the top of the fixed plate (11), and an output end of the hydraulic cylinder (12) being fixedly connected to a connecting plate (13).

7. The injection mold for processing a lipstick tube according to claim 6, characterized in that: The movable mold assembly comprises a movable mold mounting frame (14), the movable mold mounting frame (14) being fixedly connected to one side of the connecting plate (13), and limiting rods (15) corresponding to the closed groove (20) being fixedly mounted on four corners of one side of the movable mold mounting frame (14), and a plurality of movable mold rods (17) corresponding to the fixed mold groove (21) being symmetrically mounted in the middle of one side of the movable mold mounting frame (14).

8. The injection mold for processing a lipstick tube according to claim 6, characterized in that: The demoulding assembly comprises a demoulding plate (16), the demoulding plate (16) being slidably mounted on the outside between four limit rods (15), a plurality of through slots corresponding to the movable mold rods (17) being opened in the middle of the demoulding plate (16), the through slots being movably connected to the outside of the movable mold rod (17), two electric push rods (18) being fixedly mounted at both ends of one side of the demoulding plate (16), one end of the electric push rod (18) being fixedly mounted on one side of the movable mold mounting frame (14).

9. The injection mold for processing a lipstick tube according to claim 7, characterized in that: The sliding assembly comprises two slide grooves (35), the two slide grooves (35) are respectively opened on both sides of one end of the top surface of the main frame (1), a sliding block (34) is slidably installed inside the slide groove (35), and the tops of the two sliding blocks (34) are respectively fixedly installed at the two ends of the bottom of the movable mold mounting frame (14).

10. The injection mold for processing a lipstick tube according to claim 1, characterized in that: The conveying assembly comprises a conveyor (7), an output motor (10) is installed at one end of one side of the conveyor (7), a loading box (8) is installed at one end of the conveyor (7), the loading box is arranged below the discharge pipe (4), a vibration motor (9) is fixedly installed in the cavity of the loading box (8), a cylinder (36) is fixedly installed inside the box body of the loading box (8), a loading plate (37) is fixedly installed on the top of the cylinder (36), the loading plate (37) is slidably installed inside the loading box (8), and the vibration motor (9) is electrically connected to an external power supply through a vibration switch. The cylinder (36) is electrically connected to an external power supply through a feeding switch; the upper surface of the cavity at the top of the vibration motor (9) and the feeding plate (37) are both inclined at the same angle toward one side of the conveyor (7); the upper surface of the cavity is a trumpet-shaped guide cavity with a space gradually decreasing from one side to the side of the feeding plate (37); the surface of the feeding plate (37) and the upper surface of the cavity are matched in shape so that the lipstick tubes fall neatly onto the surface of the feeding plate (37); and the conveyor (7) is provided with a guide plate matched with the feeding plate (37) for neatly conveying the lipstick tubes.

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