Plastic bottle blow molding device

Abstract

The utility model discloses a plastic bottle blow molding device, which relates to the technical field of plastic bottle blow molding and comprises a base, four corners of the top end of the base are fixedly connected with fixing rods, an ejection component is arranged in the base, and a cleaning component is arranged at the top end of the base. The double-shaft motor is started to enable the upper mold to descend to be attached to the lower mold to conduct blow molding treatment on plastic bottles, after machining is completed, the double-shaft motor is rotated reversely, the threaded lead screw b drives the movable block to move, the rotating plate is driven to rotate, the ejector rod and the ejector block are made to ascend, and the machined plastic bottles are ejected out. According to the plastic bottle mold, the molded plastic bottle can be quickly separated from the mold, the downtime in the production process is shortened, and workers can take out the plastic bottle more conveniently, so that the production efficiency is improved, meanwhile, the plastic bottle keeps a high-temperature and high-pressure state for a long time in the mold, and the retention time of the plastic bottle in the mold can be shortened through quick ejection; and the product deformation risk caused by long-time high temperature and high pressure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle blow molding, in particular to a plastic bottle blow molding device. Background Technique

[0002] Plastic bottles are mainly made of polyester, polyethylene, and polypropylene as raw materials. After adding corresponding organic solvents and being heated at high temperature, they are plastic containers formed by blow molding, extrusion blow molding, or injection molding through plastic molds. They are mainly used for disposable plastic packaging containers for liquids or solids such as beverages, foods, pickles, and edible oils. When processing plastic bottles, it is necessary to blow the bottle preforms into shape for subsequent processing.

[0003] After the existing plastic bottles are blow molded, they need to be taken out. However, after the plastic bottles are processed and are inside the cavity, it is not convenient for the staff to take them out, resulting in a reduction in the production efficiency of the device. At the same time, when plastic bottles are processed, they are in a state of high temperature and high pressure. If the products cannot be taken out quickly, there may be a risk of product deformation. For this reason, a plastic bottle blow molding device is proposed. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a plastic bottle blow molding device to solve the technical problems mentioned in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A plastic bottle blow molding device includes a base. Four corners of the top end of the base are fixedly connected with fixed rods, and the top ends of the fixed rods are fixedly connected with a top plate. A top-out component is arranged inside the base, and a cleaning component is arranged at the top end of the base. The top-out component includes a double-shaft motor fixedly connected to the top end of the top plate. Output ends on both sides of the double-shaft motor are fixedly connected with unidirectional bevel gear shafts. There is a meshing bevel gear a on one side of the unidirectional bevel gear shaft. A threaded screw rod a is fixedly connected to the center of the bevel gear a. A bevel gear b is fixedly connected to the lower end of the surface of the threaded screw rod a. There is a meshing bevel gear c on one side of the bevel gear b. A threaded screw rod b is fixedly connected to the center of the bevel gear c. A moving block is rotatably connected to the side of the threaded screw rod b away from the bevel gear c. A rotating plate is rotatably connected to the top end of the moving block. A cross plate is rotatably connected to the side of the rotating plate away from the moving block. Two groups of ejector rods are welded to the top end of the cross plate, and a top block is fixedly connected to the top end of the ejector rod.

[0006] As a preferred technical solution of the plastic bottle blow molding device of the utility model, a moving plate is rotatably connected to the surface of the threaded screw rod a, and an upper mold is fixedly connected to the bottom end of the moving plate. A lower mold is fixedly connected to the top end of the base.

[0007] As a preferred technical solution of the plastic bottle blow molding device of the present utility model, a ring fixed to the surface of the threaded screw rod b is provided between the helical gear c and the moving block, and a support block is rotatably connected to the surface of the ring, and the support block is fixedly connected to the base.

[0008] As a preferred technical solution of the plastic bottle blow molding device of the present utility model, the top block is arranged inside the lower mold, and the top block is slidably connected to the lower mold, and a base rod is provided at the connection between the moving block and the rotating plate.

[0009] As a preferred technical solution of the plastic bottle blow molding device of the present utility model, the cleaning assembly includes a fixing plate fixedly connected to one side of the top of the base, a square cylinder is fixedly connected to the top of the fixing plate, a pressing plate is slidably connected inside the square cylinder, two fixing shafts are welded to the top of the pressing plate, a limiting shaft is slidably connected inside the fixing shaft, and an air jet head is provided on one side of the square cylinder.

[0010] As a preferred technical solution of the plastic bottle blow molding device of the present utility model, the air jet head is directed at one side of the lower mold, a limiting groove matching the limiting shaft is opened inside the fixing shaft, and the limiting shaft is fixedly connected to the moving plate.

[0011] In summary, the present utility model mainly has the following beneficial effects:

[0012] 1. The present utility model blows and molds the plastic bottle by starting the double-shaft motor to lower the upper mold to fit with the lower mold. After the processing is completed, the double-shaft motor is reversed, the threaded screw rod b drives the moving block to move, drives the rotating plate to rotate, and makes the ejector rod and the top block rise to eject the processed plastic bottle, which can quickly separate the formed plastic bottle from the mold, reduce the downtime during the production process, facilitate the staff to take it out more conveniently, thereby improving the production efficiency. At the same time, the plastic bottle remains in a high-temperature and high-pressure state in the mold for a long time, and the quick ejection can reduce its residence time in the mold and reduce the risk of product deformation caused by long-term high-temperature and high-pressure.

[0013] 2. The present utility model drives the upper mold and the limiting shaft to rise through the moving plate. When the limiting shaft slides a certain distance inside the limiting groove, it will drive the fixing shaft and the pressing plate to rise synchronously, so that the gas is ejected from the air jet head, which can effectively remove the residual plastic, dust and other impurities inside the cavity of the lower mold, keep the cavity clean, help to ensure the blow molding quality of the next plastic bottle, avoid product defects caused by cavity contamination, and at the same time can reduce the temperature of the cavity of the lower mold and accelerate the cooling process of the mold. Description of the Drawings

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall components of the present utility model;

[0015] Figure 2Schematic internal three-dimensional view of the base of the present utility model;

[0016] Figure 3 Schematic three-dimensional view of the ejection assembly of the present utility model;

[0017] Figure 4 Schematic three-dimensional view of the cleaning assembly of the present utility model.

[0018] In the figure: 100, base; 110, fixed rod; 120, top plate; 130, moving plate; 140, upper mold; 150, lower mold;

[0019] 200, ejection assembly; 210, dual-axis motor; 220, one-way helical gear shaft; 230, helical gear a; 240, threaded lead screw a; 250, helical gear b; 260, helical gear c; 270, threaded lead screw b; 271, ring; 280, support block; 290, moving block; 2910, rotating plate; 2911, base rod; 2920, cross plate; 2930, ejector rod; 2940, ejector block;

[0020] 300, cleaning assembly; 310, fixing plate; 320, square cylinder; 330, extrusion plate; 340, fixed shaft; 350, limiting shaft; 351, limiting groove; 360, air jet head. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0022] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0023] A plastic bottle blow molding device, as Figures 1-4As shown in the figure, it includes a base 100. At the four corners of the top end of the base 100, there are fixedly connected fixing rods 110. At the top ends of the fixing rods 110, there is fixedly connected a top plate 120. Inside the base 100, there is a top - out component 200, and on the top end of the base 100, there is a cleaning component 300. The top - out component 200 includes a double - shaft motor 210 fixedly connected to the top end of the top plate 120. On both output ends of the double - shaft motor 210, there are fixedly connected one - way bevel gear shafts 220. On one side of the one - way bevel gear shaft 220, there is an engaged bevel gear a 230. At the center of the bevel gear a 230, there is fixedly connected a threaded lead screw a 240. At the lower end of the surface of the threaded lead screw a 240, there is fixedly connected a bevel gear b 250. On one side of the bevel gear b 250, there is an engaged bevel gear c 260. At the center of the bevel gear c 260, there is fixedly connected a threaded lead screw b 270. On the side of the surface of the threaded lead screw b 270 away from the bevel gear c 260, there is a rotatably connected moving block 290. At the top end of the moving block 290, there is a rotatably connected rotating plate 2910. On the side of the rotating plate 2910 away from the moving block 290, there is a rotatably connected cross - plate 2920. At the top of the cross - plate 2920, there are welded two groups of ejector rods 2930. At the top ends of the ejector rods 2930, there is fixedly connected an ejector block 2940.

[0024] By starting the double - shaft motor 210 to drive the one - way bevel gear shaft 220 to rotate, the one - way bevel gear shaft 220 drives the threaded lead screw a 240 to rotate through the bevel gear a 230, so that the threaded lead screw a 240 drives the moving plate 130 to descend, and the moving plate 130 drives the upper mold 140 to descend and fit with the lower mold 150 for blow - molding treatment of plastic bottles. When the processing is completed, reverse the double - shaft motor 210, so that the threaded lead screw a 240 drives the moving plate 130 to rise. At the same time, the threaded lead screw a 240 drives the bevel gear b 250 and the bevel gear c 260 to rotate. The bevel gear c 260 drives the threaded lead screw b 270 to rotate, and the threaded lead screw b 270 drives the moving block 290 to move. When the moving block 290 moves, it drives the rotating plate 2910 to rotate through the base rod 2911. The rotating plate 2910 drives the ejector rods 2930 and the ejector block 2940 to rise through the cross - plate 2920, so that the ejector block 2940 ejects the processed plastic bottles, which can quickly separate the formed plastic bottles from the mold, reduce the downtime during the production process, facilitate the staff to take them out more conveniently, thereby improving production efficiency. At the same time, the plastic bottles are kept in a high - temperature and high - pressure state in the mold for a long time. Quick ejection can reduce their residence time in the mold and reduce the risk of product deformation caused by long - term high - temperature and high - pressure.

[0025] Please refer specifically to Figure 2 and Figure 3, a moving plate 130 is rotatably connected to the surface of the threaded lead screw a240. A top die 140 is fixedly connected to the bottom end of the moving plate 130. A bottom die 150 is fixedly connected to the top end of the base 100. A ring 271 fixedly connected to the surface of the threaded lead screw b270 is provided between the helical gear c260 and the moving block 290. A support block 280 is rotatably connected to the surface of the ring 271, and the support block 280 is fixedly connected to the base 100.

[0026] By providing the ring 271, it is possible to prevent the threaded lead screw b270 from moving during rotation, preventing the device from operating properly.

[0027] Please refer specifically to Figure 3 , a top block 2940 is provided inside the bottom die 150, and the top block 2940 is slidably connected to the bottom die 150. A base rod 2911 is provided at the connection between the moving block 290 and the rotating plate 2910.

[0028] By providing the base rod 2911, it is convenient for the rotating plate 2910 and the moving block 290 to rotate. By means of the top block 2940, it is convenient to eject the product from the bottom die 150.

[0029] Please refer specifically to Figure 1 , Figure 2 and Figure 4 , the cleaning assembly 300 includes a fixing plate 310 fixedly connected to one side of the top end of the base 100. A square cylinder 320 is fixedly connected to the top end of the fixing plate 310. A pressing plate 330 is slidably connected inside the square cylinder 320. Two groups of fixing shafts 340 are welded to the top end of the pressing plate 330. A limiting shaft 350 is slidably connected inside the fixing shaft 340. An air jet head 360 is provided on one side of the square cylinder 320, and the air jet head 360 faces one side of the bottom die 150. A limiting groove 351 that fits the limiting shaft 350 is opened inside the fixing shaft 340, and the limiting shaft 350 is fixedly connected to the moving plate 130.

[0030] When the moving plate 130 drives the top die 140 to rise, it will synchronously drive the limiting shaft 350 to rise. When the limiting shaft 350 slides a certain distance inside the limiting groove 351, it will drive the fixing shaft 340 to rise. The fixing shaft 340 drives the pressing plate 330 to rise synchronously and squeeze the gas inside the square cylinder 320, causing the gas to be ejected from the air jet head 360. This can effectively remove the residual plastic, dust, and other impurities inside the cavity of the bottom die 150, keep the mold cavity clean, help ensure the blow molding quality of the next plastic bottle, avoid product defects caused by mold cavity contamination, and at the same time can reduce the temperature of the cavity of the bottom die 150 and accelerate the cooling process of the mold.

[0031] During use, the upper mold 140 is lowered by starting the dual-axis motor 210 to fit with the lower mold 150 for blow molding of plastic bottles. After processing, the dual-axis motor 210 is reversed, causing the threaded lead screw b270 to drive the moving block 290 to move, driving the rotating plate 2910 to rotate, and causing the ejector rod 2930 and the ejector block 2940 to rise, ejecting the processed plastic bottles. This can quickly separate the formed plastic bottles from the mold, reduce the downtime during production, facilitate the staff to take them out more conveniently, thereby improving production efficiency. At the same time, the plastic bottles remain in a high-temperature and high-pressure state in the mold for a long time, and rapid ejection can reduce their residence time in the mold, reducing the risk of product deformation caused by long-term high temperature and high pressure. When the moving plate 130 drives the upper mold 140 to rise, it will drive the limit shaft 350 to rise. When the limit shaft 350 slides a certain distance inside the limit groove 351, it will drive the fixed shaft 340 and the extrusion plate 330 to rise synchronously, causing gas to be ejected from the air jet head 360. This can effectively remove the residual plastic, dust, and other impurities inside the cavity of the lower mold 150, keep the mold cavity clean, help ensure the blow molding quality of the next plastic bottle, avoid product defects caused by mold cavity contamination, and at the same time can reduce the temperature of the cavity of the lower mold 150 and accelerate the cooling process of the mold. The parts not involved in this device are the same as or can be implemented using existing technologies.

[0032] Although the embodiments of the present invention have been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A plastic bottle blow molding device, comprising a base (100), characterized in that: The four corners of the top of the base (100) are fixedly connected to fixed rods (110), the top of the fixed rods (110) is fixedly connected to a top plate (120), an ejection assembly (200) is provided inside the base (100), and a cleaning assembly (300) is provided at the top of the base (100), the ejection assembly (200) comprises a double-axis motor (210) fixedly connected to the top of the top plate (120), both sides of the output end of the double-axis motor (210) are fixedly connected to a one-way helical gear shaft (220), one side of the one-way helical gear shaft (220) is provided with a meshing helical gear a (230), the center of the helical gear a (230) is fixedly connected to a threaded screw rod a (240), and the threaded screw rod a (240) is fixedly connected to the top of the top plate (120). 40) The lower end of the surface is fixedly connected with a bevel gear b (250), one side of the bevel gear b (250) is provided with a meshing bevel gear c (260), the center of the bevel gear c (260) is fixedly connected with a threaded screw rod b (270), the side of the surface of the threaded screw rod b (270) away from the bevel gear c (260) is rotatably connected with a moving block (290), the top of the moving block (290) is rotatably connected with a rotating plate (2910), the side of the rotating plate (2910) away from the moving block (290) is rotatably connected with a transverse plate (2920), the top of the transverse plate (2920) is welded with two groups of top rods (2930), and the top of the top rod (2930) is fixedly connected with a top block (2940).

2. A plastic bottle blow molding device according to claim 1, characterized in that: The surface of the threaded screw a (240) is rotatably connected to a movable plate (130), the bottom end of the movable plate (130) is fixedly connected to an upper mold (140), and the top end of the base (100) is fixedly connected to a lower mold (150).

3. A plastic bottle blow molding device according to claim 1, characterized in that: A circular ring (271) fixedly connected to the surface of the threaded screw rod b (270) is provided between the bevel gear c (260) and the moving block (290); a support block (280) is rotatably connected to the surface of the circular ring (271); and the support block (280) is fixedly connected to the base (100).

4. A plastic bottle blow molding device according to claim 1, characterized in that: The top block (2940) is arranged inside the lower mold (150), and the top block (2940) is slidably connected to the lower mold (150). A base rod (2911) is provided at the connection between the moving block (290) and the rotating plate (2910).

5. A plastic bottle blow molding device according to claim 1, characterized in that: The cleaning assembly (300) comprises a fixing plate (310) fixedly connected to one side of the top end of the base (100); a square tube (320) is fixedly connected to the top end of the fixing plate (310); an extrusion plate (330) is slidably connected inside the square tube (320); two groups of fixing shafts (340) are welded to the top end of the extrusion plate (330); a limiting shaft (350) is slidably connected inside the fixing shaft (340); and a nozzle (360) is provided on one side of the square tube (320).

6. A plastic bottle blow molding device according to claim 5, characterized in that: The nozzle (360) is directly opposite to one side of the lower mold (150), and a limiting groove (351) matching the limiting shaft (350) is provided inside the fixed shaft (340), and the limiting shaft (350) is fixedly connected to the movable plate (130).

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