A blow molding device

Abstract

This invention relates to the field of ton barrel processing technology and provides a blow molding device, including a housing, a moving mechanism, a blow molding mechanism, a clamping mechanism, and a cutting mechanism. The housing has loading and unloading doors on both sides and an observation window on the front. The moving mechanism is located inside the housing and is used to adjust the positions of the blow molding mechanism and the clamping mechanism. This invention improves clamping efficiency by using multiple sets of clamping rods to simultaneously clamp multiple parts through the clamping mechanism. The spacing between the multiple sets of clamping rods is adjustable, allowing for clamping of parts of different sizes, thus expanding the device's applicability. Furthermore, the spacing between the multiple sets of clamping rods can be adjusted synchronously through the machine structure, avoiding errors that could affect material clamping during sequential adjustment and improving the device's adjustment efficiency.

Description

Technical Field

[0001] This invention belongs to the field of ton barrel manufacturing technology, and particularly relates to a blow molding device. Background Technology

[0002] IBC – Medium Bulk Container. Commonly known as: Ton Container, IBC Tank, 1000-liter container. IBC tanks are lightweight, high-strength, and corrosion-resistant. They are widely used in the chemical, pharmaceutical, food, coating, and oil industries. They are essential tools for modern warehousing and transportation of liquid products. IBCs consist of an inner container and a metal frame. The inner container is made of low-density polyethylene or high-density polyethylene, typically using a blow molding process.

[0003] Chinese invention patent with publication number CN115179527A discloses a blow molding device for producing plastic packaging bottles, including a blow molding machine body. The blow molding machine body is equipped with a preform injector, a blow molding head and a mold. A clamping plate is set on the side of the mold for clamping and moving the plastic bottle after blow molding. A support plate is set inside the blow molding machine body, and a discharge plate is set on the side of the blow molding machine body near the support plate.

[0004] However, the above-mentioned patents have the following shortcomings:

[0005] 1. The above-mentioned patent uses two sets of clamps on the side of the mold to move to the plastic bottle connected to the blow molding head and clamp the plastic bottle blow-molded at the blow molding head. However, the clamp structure is fixed, so it cannot clamp parts of different sizes. At the same time, when there are multiple existing adjustable clamp structures, if multiple clamping structures are adjusted in sequence, there may be errors between multiple clamping mechanisms, which will result in the inability to accurately clamp multiple materials and will also reduce the adjustment efficiency of the clamping mechanism.

[0006] 2. The above-mentioned patent uses a first cutting blade to cut off excess waste material from the mouth of the blow-molded plastic bottle under the action of a driving device. However, it lacks a device for collecting the waste material. As a result, the waste material will accumulate at the bottom of the device during continuous use, requiring manual cleaning of the waste material afterward. Summary of the Invention

[0007] This invention provides a blow molding device aimed at solving the problems mentioned in the background art. The aforementioned patent uses two sets of clamps on the side of the mold to move to the plastic bottle connected to the blow molding head and clamp the blow-molded plastic bottle. However, the clamp structure is fixed, making it impossible to clamp parts of different sizes. Furthermore, existing adjustable clamping structures, when multiple are used, may have errors between the clamping mechanisms if adjusted sequentially, resulting in inaccurate clamping of multiple materials and reduced adjustment efficiency. Additionally, the aforementioned patent uses a first cutting blade driven by a device to remove excess waste from the bottle opening after blow molding, but lacks a waste collection device. As a result, waste accumulates at the bottom of the device during continuous use, requiring manual cleaning.

[0008] The present invention is implemented as follows: a blow molding device includes a housing, a moving mechanism, a blow molding mechanism, a clamping mechanism, and a cutting mechanism;

[0009] The housing is provided with access doors on both sides and an observation window is provided on the front side of the housing;

[0010] The moving mechanism is located inside the housing and is used to adjust the positions of the blow molding mechanism and the clamping mechanism.

[0011] The blow molding mechanism is located inside the housing and is used to blow mold plastic raw materials into shaped parts;

[0012] The clamping mechanism is disposed inside the housing and is used to clamp and fix the formed parts.

[0013] The cutting mechanism is located inside the housing and is used to remove excess material from the top of the molded part.

[0014] Preferably, the moving mechanism includes a guide rail, the side wall of the guide rail is fixedly connected to the inner wall of the housing, a moving plate is slidably disposed on the surface of the guide rail, a first electric push rod is fixedly connected to the surface of the moving plate, and the output end of the first electric push rod is fixedly connected to the side wall of the housing.

[0015] Because the end of the first electric push rod is fixedly connected to the inner wall of the housing, when the first electric push rod drives its drive rod to extend or retract, it will cause the first electric push rod body and the movable plate connected to it to slide along the guide rail, thereby adjusting the position of the movable plate.

[0016] Preferably, the blow molding mechanism includes a preform assembly, a blow molding assembly, and a mold assembly. The preform assembly is disposed inside the housing, and its bottom is fixedly connected to the top wall of the housing. The blow molding assembly is disposed inside the housing, and its top is fixedly connected to the top wall of the housing. The side wall of the mold assembly is fixedly connected to a movable plate. Both the preform assembly and the blow molding assembly are matched with the mold assembly.

[0017] First, the high-temperature plastic is extruded into a tubular preform by the injection molding assembly. Then, the mold assembly, which is extended, is moved to the bottom of the tubular preform by a moving plate. The mold assembly is then driven to clamp and cut the tubular preform. Next, the mold assembly, which is closed, is moved to the bottom of the blow molding assembly by the moving plate. The bottom of the blow molding assembly is then inserted into the top of the mold assembly, and the preform is blown into the cold wall of the mold cavity. The opening is adjusted and a certain pressure is maintained during cooling. After the part cools down, the mold assembly is extended. At this time, the cooled part will stick to the bottom of the blow molding assembly. Then, the mold assembly, which is extended, is moved to one side by the moving plate. As the moving plate moves, the clamping mechanism moves to the position corresponding to the cooled part.

[0018] Preferably, the clamping mechanism includes a fixed frame, the fixed frame is U-shaped, the side wall of the fixed frame is fixedly connected to the movable plate, the number of fixed frames is set to two, and each of the two fixed frames is provided with a second electric push rod, the end of the second electric push rod is fixedly connected to the inner wall of the fixed frame, the output end of the second electric push rod passes through the fixed frame, and the output end of the second electric push rod is slidably connected to the fixed frame;

[0019] A fixing plate is fixedly connected between the two second electric push rods, and a third electric push rod is fixedly connected to the side wall of the fixing plate. The number of third electric push rods is set to be multiple, and the output ends of the multiple third electric push rods are fixedly connected to the same abutment.

[0020] Two second electric actuators are fixedly connected to the same mounting chamber at their output ends. A first stepper motor is fixedly connected inside the mounting chamber. A first rotating rod is fixedly connected to the output shaft of the first stepper motor. The end of the first rotating rod is rotatably connected to the inner wall of the mounting chamber. Multiple first driving bevel gears are fixedly connected to the outer periphery of the first rotating rod. A first driven bevel gear is meshed on one side of the first driving bevel gear. A second rotating rod is fixedly connected to one side of the first driven bevel gear. The middle of the second rotating rod passes through the mounting chamber. The second rotating rod is rotatably connected to the mounting chamber. A second driving bevel gear is fixedly connected to the end of the second rotating rod.

[0021] A receiving chamber is sleeved on the outer side of the second driving bevel gear. The side wall of the receiving chamber is fixedly connected to the installation chamber. The second rotating rod passes through the receiving chamber and is rotatably connected to the receiving chamber. Second driven bevel gears are meshed on both sides of the second driving bevel gear. A threaded rod is fixedly connected to one side of the second driven bevel gear. The end of the threaded rod is rotatably connected to the inner wall of the receiving chamber. An extension frame is threadedly connected to the outer periphery of both threaded rods. The extension frame is U-shaped. Both ends of the extension frame pass through the receiving chamber and are slidably connected to the receiving chamber. The same drive frame is fixedly connected to both ends of the extension frame. The drive frame is U-shaped.

[0022] Both drive frames are hinged to the inner side with clamping rods. The clamping rods are arc-shaped. Two limiting shafts are fixedly connected to the ends of the two clamping rods. A limiting sleeve is movably sleeved between two adjacent limiting shafts. A connecting rod is fixedly connected between the limiting sleeve and the abutment.

[0023] By activating the extension of the second electric push rod, the mounting chamber and multiple sets of clamping rods can be aligned with the position of the part. Then, by activating the retraction of multiple third electric push rods, the backing plate can be moved. At the same time, the backing plate will move the limiting sleeve through multiple connecting rods. As the limiting sleeve moves, it will squeeze the limiting shaft on its inner side. The limiting shaft will drive the clamping rod to rotate around the hinge point. By rotating the two clamping rods inward, the top end of the cooled part can be clamped and fixed.

[0024] By starting the first stepper motor, multiple first driving bevel gears can be simultaneously rotated via the first rotating rod. Simultaneously, these first driving bevel gears, through the first driven bevel gears and the second rotating rod, drive second driving bevel gears to rotate. The second driving bevel gears, in turn, drive two threaded rods to rotate via two second driven bevel gears. As the threaded rods rotate, the extension frames, limited by the receiving chamber, cannot rotate on their own and are thus moved along the axis of the threaded rods. At this time, the two extension frames simultaneously drive the two drive frames to move, allowing the distance between the two clamping rods to be adjusted. This enables the clamping rods to hold and fix the necks of parts of different sizes. Furthermore, multiple sets of clamping rods can be adjusted synchronously, avoiding errors during adjustment and thus improving the device's adjustment accuracy and efficiency.

[0025] Preferably, the cutting mechanism includes a cutting component and a feeding component.

[0026] Preferably, the cutting component includes a mounting frame disposed inside the housing. The top of the mounting frame is fixedly connected to the inner wall of the housing. A positioning frame is provided inside the mounting frame. A groove is provided on the top of the positioning frame. There are two positioning frames. The side wall of one positioning frame is fixedly connected to the inner wall of the mounting frame. A sliding rod is fixedly connected to the side wall of the other positioning frame. The end of the sliding rod passes through the mounting frame and is slidably connected to the mounting frame. A limit block is fixedly connected to the end of the sliding rod. A compression spring is sleeved on the outside of the sliding rod. One end of the compression spring abuts against the adjacent positioning frame, and the other end of the compression spring abuts against the inner wall of the mounting frame.

[0027] Multiple guide wheels are rotatably arranged on the inner edge of the positioning frame, and the multiple guide wheels are evenly distributed. Two through slots are provided through the middle of the positioning frame. Limiting rods are fixedly connected inside the through slots. Mounting blocks are slidably arranged on the outer side of the limiting rods. Tensioning springs are sleeved on the outer side of the limiting rods. One end of the tensioning spring abuts against the mounting block, and the other end of the tensioning spring abuts against the inner wall of the through slot. Tensioning wheels are rotatably arranged between the two mounting blocks. Tensioning belts are movably sleeved between the tensioning wheels and the multiple guide wheels.

[0028] A second stepper motor is fixedly connected to the side wall of the mounting frame, and a cutting blade is fixedly connected to the output shaft of the second stepper motor. The cutting blade passes through the mounting frame and matches the groove.

[0029] The moving plate can move the clamping mechanism and the clamped part into the mounting frame. During this process, the neck of the clamped part will abut against the two positioning frames. After one of the positioning frames is squeezed, it will slide along the axis of the slide rod, and at the same time squeeze and compress the tension spring. Then the neck of the part will be positioned between the two positioning frames. As the part continues to move, the neck of the part will come into contact with the cutting blade. The stepper motor drives the cutting blade to rotate, which can cut the excess material on the top of the part. The cut excess material will fall into the cavity formed by the mounting frame and the two positioning frames, thus avoiding the excess material from falling randomly and requiring manual cleaning of the excess material later.

[0030] Because the spacing between the two positioning frames is adjustable, the necks of parts of different sizes can be positioned using the two positioning frames. When the part comes into contact with the positioning frame, it will come into contact with the tensioning band on the outside of the positioning frame. At the same time, after the tensioning band comes into contact with the part, as the part moves, the tensioning band will move between the tensioning wheel and multiple guide wheels, while the part in contact with the tensioning band will not move, thus avoiding wear on the surface of the part caused by the positioning frame.

[0031] Preferably, the feeding component includes a blower and an exhaust pipe. The blower is located at the top of the mounting frame, and the bottom of the blower is fixedly connected to the mounting frame. An air inlet pipe is connected to the output end of the blower. The air inlet pipe is L-shaped and passes through the mounting frame. The end of the exhaust pipe is fixedly connected to the mounting frame. The exhaust pipe is bent and a filter screen is fixedly connected to the end of the exhaust pipe. A discharge pipe is provided at the bottom of the exhaust pipe.

[0032] By starting the blower, high-speed airflow can be introduced into the cavity formed by the mounting frame and the two positioning frames through the air inlet pipe. The high-speed airflow blows the residual material in the cavity into the exhaust pipe. Then, the high-speed airflow will be blown out through the air filter screen, and the residual material will be discharged through the discharge pipe under the action of gravity, thus facilitating the centralized collection of residual material.

[0033] Compared with the prior art, the beneficial effects of the present invention are: A blow molding device of the present invention:

[0034] 1. By setting up a clamping mechanism, multiple clamping rods can simultaneously clamp multiple parts, thereby improving the clamping efficiency. The spacing between the multiple clamping rods is adjustable, allowing for the clamping of parts of different sizes, thus expanding the applicability of the device. Furthermore, the spacing between the multiple clamping rods can be adjusted synchronously through the machine structure, avoiding errors during adjustment and improving the adjustment efficiency of the device.

[0035] 2. By setting up a cutting mechanism, the neck of the part can be limited by two positioning frames, which facilitates the subsequent cutting of the excess material at the top of the part by the cutting blade. The distance between the two positioning frames is adjustable, which helps to improve the applicability of the device. At the same time, the cut excess material will fall into the cavity formed by the mounting frame and the two positioning frames, which can prevent the excess material from falling randomly and requiring manual cleaning later. In addition, the feeding component can automatically transport and collect the excess material generated by cutting. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the moving mechanism of the present invention;

[0038] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention;

[0039] Figure 4 This is a schematic diagram of the cutting mechanism of the present invention;

[0040] Figure 5 This is a schematic diagram of the connection structure between the first rotating rod and the first driving bevel gear of the present invention;

[0041] Figure 6 This is a schematic diagram of the positioning frame structure of the present invention;

[0042] Figure 7 This is a schematic cross-sectional view of the positioning frame structure of this invention;

[0043] Figure 8 This is a partial structural diagram of the clamping mechanism of the present invention;

[0044] Figure 9 For the present invention Figure 3 Enlarged view of the A-section structure;

[0045] Figure 10 For the present invention Figure 4 Enlarged view of the structure of section B;

[0046] Figure 11 For the present invention Figure 7 Enlarged view of the C-section structure;

[0047] In the picture:

[0048] 1. Housing; 11. Loading / unloading door; 12. Observation window;

[0049] 2. Moving mechanism; 21. Guide rail; 22. Moving plate; 23. First electric push rod;

[0050] 3. Blow molding mechanism; 31. Preform assembly; 32. Blow molding assembly; 33. Mold assembly;

[0051] 4. Clamping mechanism; 41. Fixed frame; 42. Second electric push rod; 43. Fixed plate; 44. Third electric push rod; 45. Support plate; 46. Mounting chamber; 47. First stepper motor; 48. First rotating rod; 49. First driving bevel gear; 410. First driven bevel gear; 411. Second rotating rod; 412. Second driving bevel gear; 413. Receiving chamber; 414. Second driven bevel gear; 415. Threaded rod; 416. Extension frame; 417. Drive frame; 418. Clamping rod; 419. Limiting shaft; 420. Limiting sleeve; 421. Connecting rod;

[0052] 5. Cutting mechanism;

[0053] 51. Cutting component; 511. Mounting frame; 512. Positioning frame; 513. Groove; 514. Slide rod; 515. Limiting block; 516. Compression spring; 517. Guide wheel; 518. Through groove; 519. Limiting rod; 5110. Mounting block; 5111. Tensioning spring; 5112. Tensioning wheel; 5113. Tensioning belt; 5114. Second stepper motor; 5115. Cutting blade;

[0054] 52. Feeding components; 521. Blower; 522. Exhaust pipe; 523. Inlet pipe; 524. Air filter; 525. Discharge pipe. Detailed Implementation

[0055] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0056] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0057] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] Please see Figure 1-11 The present invention provides a technical solution: a blow molding device, including a housing 1, a moving mechanism 2, a blow molding mechanism 3, a clamping mechanism 4 and a cutting mechanism 5;

[0061] Both sides of the housing 1 are provided with loading and unloading doors 11, and an observation window 12 is provided on the front side of the housing 1.

[0062] The moving mechanism 2 is located inside the housing 1, and the moving mechanism 2 is used to adjust the position of the blow molding mechanism 3 and the clamping mechanism 4;

[0063] The blow molding mechanism 3 is located inside the housing 1 and is used to blow mold plastic raw materials into shaped parts;

[0064] The clamping mechanism 4 is located inside the housing 1 and is used to clamp and fix the molded parts.

[0065] The cutting mechanism 5 is located inside the housing 1 and is used to remove excess material from the top of the molded part.

[0066] Furthermore, in the above technical solution, the moving mechanism 2 includes a guide rail 21, the side wall of the guide rail 21 is fixedly connected to the inner wall of the housing 1, a moving plate 22 is slidably disposed on the surface of the guide rail 21, a first electric push rod 23 is fixedly connected to the surface of the moving plate 22, and the output end of the first electric push rod 23 is fixedly connected to the side wall of the housing 1.

[0067] Furthermore, in the above technical solution, the blow molding mechanism 3 includes a preform assembly 31, a blow molding assembly 32, and a mold assembly 33. The preform assembly 31 is disposed inside the housing 1, and the bottom of the preform assembly 31 is fixedly connected to the top wall of the housing 1. The blow molding assembly 32 is disposed inside the housing 1, and the top of the blow molding assembly 32 is fixedly connected to the top wall of the housing 1. The side wall of the mold assembly 33 is fixedly connected to the moving plate 22. Both the preform assembly 31 and the blow molding assembly 32 are matched with the mold assembly 33.

[0068] Furthermore, in the above technical solution, the clamping mechanism 4 includes a fixed frame 41, which is U-shaped. The side wall of the fixed frame 41 is fixedly connected to the movable plate 22. There are two fixed frames 41. Each of the two fixed frames 41 is provided with a second electric push rod 42. The end of the second electric push rod 42 is fixedly connected to the inner wall of the fixed frame 41. The output end of the second electric push rod 42 passes through the fixed frame 41 and is slidably connected to the fixed frame 41.

[0069] A fixing plate 43 is fixedly connected between the two second electric push rods 42, and a third electric push rod 44 is fixedly connected to the side wall of the fixing plate 43. The number of third electric push rods 44 is set to multiple, and the output ends of multiple third electric push rods 44 are fixedly connected to the same abutment plate 45.

[0070] Two second electric push rods 42 are fixedly connected to the same mounting chamber 46 at their output ends. A first stepper motor 47 is fixedly connected inside the mounting chamber 46. A first rotating rod 48 is fixedly connected to the output shaft of the first stepper motor 47. The end of the first rotating rod 48 is rotatably connected to the inner wall of the mounting chamber 46. Multiple first driving bevel gears 49 are fixedly connected to the outer periphery of the first rotating rod 48. A first driven bevel gear 410 is meshed on one side of the first driving bevel gear 49. A second rotating rod 411 is fixedly connected to one side of the first driven bevel gear 410. The middle of the second rotating rod 411 passes through the mounting chamber 46. The second rotating rod 411 is rotatably connected to the mounting chamber 46. A second driving bevel gear 412 is fixedly connected to the end of the second rotating rod 411.

[0071] A receiving chamber 413 is sleeved on the outer side of the second driving bevel gear 412. The side wall of the receiving chamber 413 is fixedly connected to the installation chamber 46. The second rotating rod 411 is installed through the receiving chamber 413 and is rotatably connected to the receiving chamber 413. The second driving bevel gear 412 is meshed with a second driven bevel gear 414 on both sides. A threaded rod 415 is fixedly connected to one side of the second driven bevel gear 414. The end of the threaded rod 415 is rotatably connected to the inner wall of the receiving chamber 413. An extension frame 416 is threadedly connected to the outer periphery of both threaded rods 415. The extension frame 416 is U-shaped. Both ends of the extension frame 416 are installed through the receiving chamber 413 and are slidably connected to the receiving chamber 413. The same drive frame 417 is fixedly connected to both ends of the extension frame 416. The drive frame 417 is U-shaped.

[0072] Both drive frames 417 are hinged to the inner side with clamping rods 418. The clamping rods 418 are arc-shaped. The ends of the two clamping rods 418 are fixedly connected to two limiting shafts 419. A limiting sleeve 420 is movably sleeved between two adjacent limiting shafts 419. A connecting rod 421 is fixedly connected between the limiting sleeve 420 and the abutment plate 45.

[0073] Furthermore, in the above technical solution, the cutting mechanism 5 includes a cutting component 51 and a feeding component 52.

[0074] Furthermore, in the above technical solution, the cutting component 51 includes a mounting frame 511, which is disposed inside the housing 1. The top of the mounting frame 511 is fixedly connected to the inner wall of the housing 1. A positioning frame 512 is provided inside the mounting frame 511. A groove 513 is provided on the top of the positioning frame 512. There are two positioning frames 512. The side wall of one positioning frame 512 is fixedly connected to the inner wall of the mounting frame 511. A sliding rod 514 is fixedly connected to the side wall of the other positioning frame 512. The end of the sliding rod 514 passes through the mounting frame 511 and is slidably connected to the mounting frame 511. A limit block 515 is fixedly connected to the end of the sliding rod 514. A compression spring 516 is sleeved on the outside of the sliding rod 514. One end of the compression spring 516 abuts against the adjacent positioning frame 512, and the other end of the compression spring 516 abuts against the inner wall of the mounting frame 511.

[0075] Multiple guide wheels 517 are rotatably arranged on the inner edge of the positioning frame 512, and the multiple guide wheels 517 are evenly distributed. Two through grooves 518 are provided through the middle of the positioning frame 512. Limiting rods 519 are fixedly connected inside the through grooves 518. Mounting blocks 5110 are slidably arranged on the outer side of the limiting rods 519. Tensioning springs 5111 are sleeved on the outer side of the limiting rods 519. One end of the tensioning springs 5111 abuts against the mounting blocks 5110, and the other end of the tensioning springs 5111 abuts against the inner wall of the through grooves 518. A tensioning wheel 5112 is rotatably arranged between the two mounting blocks 5110. A tensioning belt 5113 is movably sleeved between the tensioning wheel 5112 and the multiple guide wheels 517.

[0076] A second stepper motor 5114 is fixedly connected to the side wall of the mounting frame 511. A cutting blade 5115 is fixedly connected to the output shaft of the second stepper motor 5114. The cutting blade 5115 passes through the mounting frame 511 and matches the groove 513.

[0077] Furthermore, in the above technical solution, the feeding component 52 includes a blower 521 and an exhaust pipe 522. The blower 521 is located on the top of the mounting frame 511, and the bottom of the blower 521 is fixedly connected to the mounting frame 511. An air inlet pipe 523 is connected to the output end of the blower 521. The air inlet pipe 523 is L-shaped and passes through the mounting frame 511. The end of the exhaust pipe 522 is fixedly connected to the mounting frame 511. The exhaust pipe 522 is bent and a filter screen 524 is fixedly connected to the end of the exhaust pipe 522. A discharge pipe 525 is provided at the bottom of the exhaust pipe 522.

[0078] Working principle and usage process of this invention:

[0079] Refer to the instruction manual appendix Figure 1-11When this device is in use, the high-temperature plastic is first extruded into a tubular preform by the preform injection assembly 31. Then, the unfolded mold assembly 33 is moved to the bottom of the tubular preform by the moving plate 22. The mold assembly 33 is then driven to clamp and cut the tubular preform. The closed mold assembly 33 is then moved to the bottom of the blow molding assembly 32 by the moving plate 22. The bottom end of the blow molding assembly 32 is then inserted into the top end of the mold assembly 33 to blow the preform into the cold wall of the mold cavity. The opening is adjusted and a certain pressure is maintained during cooling. After the part cools down, the mold assembly 33 is unfolded. At this time, the cooled part will stick to the bottom of the blow molding assembly 32. Then, the unfolded mold assembly 33 is moved to one side by the moving plate 22. As the moving plate 22 moves, it will also drive the clamping mechanism 4 to move to the position corresponding to the cooled part.

[0080] By activating the extension of the second electric push rod 42, the mounting chamber 46 and multiple sets of clamping rods 418 can be simultaneously aligned with the position of the part. Then, by simultaneously activating the retraction of multiple third electric push rods 44, the abutment plate 45 can be moved. At the same time, the abutment plate 45 will move the limiting sleeve 420 through multiple connecting rods 421. As the limiting sleeve 420 moves, it will squeeze the limiting shaft 419 on its inner side. At the same time, the limiting shaft will drive the clamping rod 418 to rotate around the hinge point. By rotating the two clamping rods 418 inward, the top port of the cooled part can be clamped and fixed.

[0081] Refer to the instruction manual appendix Figure 1-11 When this device is in use, the moving plate 22 can drive the clamping mechanism 4 and the clamped part to move into the mounting frame 511. During this process, the neck of the clamped part will abut against the two positioning frames 512. After one of the positioning frames 512 is squeezed, it will slide along the axis of the slide rod 514, and at the same time squeeze and compress the tension spring 5111. Then the neck of the part will be positioned between the two positioning frames 512. As the part continues to move, the neck of the part will come into contact with the cutting blade 5115. The stepper motor 5114 drives the cutting blade 5115 to rotate, which can cut the excess material on the top of the part. The cut excess material will fall into the cavity formed by the mounting frame 511 and the two positioning frames 512.

[0082] By starting the blower 521, a high-speed airflow can be introduced into the cavity formed by the mounting frame 511 and the two positioning frames 512 through the air inlet pipe 523. The high-speed airflow blows the residual material in the cavity into the exhaust pipe 522. Then, the high-speed airflow will be blown out through the air filter 524. At the same time, the residual material will be discharged through the discharge pipe 525 under the action of gravity, which facilitates the centralized collection of residual material.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A blow molding apparatus comprising a housing (1), characterized in that: The device comprises a moving mechanism (2), a blowing mechanism (3), a clamping mechanism (4) and a cutting mechanism (5); The shell (1) is provided with a taking and placing door (11) on both sides, and an observation window (12) is formed on the front side of the shell (1); The moving mechanism (2) is arranged in the shell (1) and is used for adjusting the positions of the blowing mechanism (3) and the clamping mechanism (4); The clamping mechanism (4) comprises a fixed frame (41), which is in a U shape, and the side wall of the fixed frame (41) is fixedly connected with the moving plate (22); the number of the fixed frame (41) is two, and the second electric push rod (42) is arranged in each of the two fixed frames (41); the end of the second electric push rod (42) is fixedly connected with the inner wall of the fixed frame (41), the output end of the second electric push rod (42) penetrates through the fixed frame (41) and is arranged, and the output end of the second electric push rod (42) is slidably connected with the fixed frame (41); The second electric push rods (42) are fixedly connected with a fixed plate (43) between them, the side wall of the fixed plate (43) is fixedly connected with a third electric push rod (44), the number of the third electric push rod (44) is multiple, and the output end of the third electric push rod (44) is fixedly connected with the same resisting plate (45); The output ends of the second electric push rods (42) are fixedly connected with the same mounting bin (46), the first stepping motor (47) is fixedly connected in the mounting bin (46), the output shaft of the first stepping motor (47) is fixedly connected with a first rotating rod (48), the end of the first rotating rod (48) is rotatably connected with the inner wall of the mounting bin (46), a plurality of first driving bevel gears (49) are fixedly connected on the outer periphery of the first rotating rod (48), the first driving bevel gears (49) are meshingly provided with a first driven bevel gear (410) on one side, the first driven bevel gear (410) is fixedly connected with a second rotating rod (411) on one side, the second rotating rod (411) penetrates through the mounting bin (46) and is arranged, the second rotating rod (411) is rotatably connected with the mounting bin (46), and the end of the second rotating rod (411) is fixedly connected with a second driving bevel gear (412). The second driving bevel gear (412) is externally sleeved with a containing bin (413), the containing bin (413) is fixedly connected with the mounting bin (46), the second rotating rod (411) is arranged through the containing bin (413), the second rotating rod (411) is rotatably connected with the containing bin (413), the second driving bevel gear (412) is rotatably arranged with a second driven bevel gear (414) on both sides, the second driven bevel gear (414) is fixedly connected with a threaded rod (415) on one side, the threaded rod (415) is rotatably connected with the inner wall of the containing bin (413) on the end, the outer periphery of the two threaded rods (415) is rotatably connected with an extension frame (416), the extension frame (416) is arranged in a U shape, the extension frame (416) is arranged through the containing bin (413) on both ends, the extension frame (416) is slidably connected with the containing bin (413), the extension frame (416) is fixedly connected with the same driving frame (417) on both ends, the driving frame (417) is arranged in a U shape; Both the driving frames (417) are rotatably arranged with a clamping rod (418) on the inner side, the clamping rod (418) is arranged in an arc shape, both ends of the clamping rod (418) are fixedly connected with two limiting shafts (419), a limiting sleeve (420) is movably sleeved between the two limiting shafts (419), the limiting sleeve (420) and the abutting plate (45) are fixedly connected with a connecting rod (421); The blow molding mechanism (3) is arranged in the shell (1), and the blow molding mechanism (3) is used for blow molding the plastic raw material into a shaped part; The clamping mechanism (4) is arranged in the shell (1), and the clamping mechanism (4) is used for clamping and fixing the shaped part; The cutting mechanism (5) is arranged in the shell (1), and the cutting mechanism (5) is used for cutting off the excess material on the top of the shaped part; The cutting mechanism (5) comprises a cutting part (51) and a feeding part (52); The cutting part (51) comprises a mounting frame (511), the mounting frame (511) is arranged in the shell (1), the mounting frame (511) is fixedly connected with the inner wall of the shell (1) on the top, the mounting frame (511) is provided with a positioning frame (512) in the inside, the positioning frame (512) is provided with a groove (513) on the top, the number of the positioning frame (512) is two, one side wall of one of the positioning frame (512) is fixedly connected with the inner wall of the mounting frame (511), the other positioning frame (512) is fixedly connected with a sliding rod (514) on the side wall, the sliding rod (514) is arranged through the mounting frame (511) on the end, the sliding rod (514) is slidably connected with the mounting frame (511), the sliding rod (514) is fixedly connected with a limiting block (515) on the end, the sliding rod (514) is sleeved with an extrusion spring (516) on the outside, one end of the extrusion spring (516) abuts against the adjacent positioning frame (512), the other end of the extrusion spring (516) abuts against the inner wall of the mounting frame (511); A plurality of guide wheels (517) are rotationally arranged on the inner side edges of the positioning frame (512), the guide wheels (517) are uniformly distributed, two through grooves (518) are arranged in the middle of the positioning frame (512), a limiting rod (519) is fixedly connected inside the through groove (518), an installation block (5110) is slidingly arranged on the outer side of the limiting rod (519), a tension spring (5111) is sleeved on the outer side of the limiting rod (519), one end of the tension spring (5111) abuts against the installation block (5110), the other end of the tension spring (5111) abuts against the inner wall of the through groove (518), and a tension pulley (5112) is rotationally arranged between the two installation blocks (5110), the tension pulley (5112) and the plurality of guide wheels (517) movably sleeve a tension belt (5113); The second stepping motor (5114) is fixedly connected to the side wall of the mounting frame (511), and the cutting blade (5115) is fixedly connected to the output shaft of the second stepping motor (5114); the cutting blade (5115) penetrates through the mounting frame (511) and is matched with the groove (513). The feeding component (52) comprises a blower (521) and an exhaust pipe (522), the blower (521) is arranged on the top of the mounting frame (511), the bottom of the blower (521) is fixedly connected to the mounting frame (511), the output end of the blower (521) is in communication with an air inlet pipe (523), the air inlet pipe (523) is L-shaped, the air inlet pipe (523) penetrates through the mounting frame (511), the exhaust pipe (522) is fixedly connected to the mounting frame (511), the exhaust pipe (522) is bent, the end of the exhaust pipe (522) is fixedly connected with a filter screen (524), and the bottom of the exhaust pipe (522) is provided with a discharge pipe (525).

2. A blow molding apparatus as claimed in claim 1, characterized in that: The moving mechanism (2) comprises a guide rail (21), the side wall of the guide rail (21) is fixedly connected to the inner wall of the shell (1), and the surface of the guide rail (21) is slidingly provided with a moving plate (22).

3. A blow molding apparatus as claimed in claim 1, wherein: The blow molding mechanism (3) comprises an embryo injection assembly (31), a blow molding assembly (32) and a mold assembly (33), the embryo injection assembly (31) is arranged in the shell (1), the bottom of the embryo injection assembly (31) is fixedly connected to the top wall of the shell (1), the blow molding assembly (32) is arranged in the shell (1), the top of the blow molding assembly (32) is fixedly connected to the top wall of the shell (1), the side wall of the mold assembly (33) is fixedly connected to the moving plate (22), and the embryo injection assembly (31) and the blow molding assembly (32) are matched with the mold assembly (33).

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