Adjustable plastic bottle blow molding die

Abstract

This utility model relates to the field of blow molding die technology, and discloses an adjustable plastic bottle blow molding die, including two die bases. The bottoms of the two die bases are slidably connected to the top left and right sides of a base, respectively. A replacement die is slidably connected to adjacent sides of the two die bases. Multiple sliding grooves are equidistantly provided on adjacent sides of the two die bases. Springs are slidably connected to the inner walls of the multiple sliding grooves. A positioning ball is fixedly connected to one end of each of the multiple springs. Multiple positioning slots are equidistantly provided on the opposite sides of the two replacement dies. Multiple screws are equidistantly provided on the opposite sides of the two die bases. In this utility model, loosening the screws disconnects the die from the die base, removes the old die, aligns the new die with the sliding groove of the die base, inserts it, compresses the spring under pressure, and after alignment, the spring rebounds, initially positioning the die. A washer is then placed on top, and the screws are screwed in for further fixation.

Description

Technical Field

[0001] This utility model relates to the field of blow molding die technology, and in particular to an adjustable plastic bottle blow molding die. Background Technology

[0002] Plastic bottle blow molding molds are tools used in the plastic bottle production process. The working principle is to inject molten plastic raw material into the mold cavity, and then blow high-pressure gas into the cavity, causing the plastic raw material to adhere to the inner wall of the mold under the action of gas pressure. After cooling and solidification, a plastic bottle with a specific shape and size is formed.

[0003] Adjustable plastic bottle blow molding molds break through the limitations of traditional molds that can only produce plastic bottles of a single specification. They are flexible and adjustable. By optimizing some of the mold's structure, the mold can adjust the parameters of its size and shape to meet the production needs of plastic bottles of different specifications.

[0004] Traditional blow molding dies use a lead screw and nut adjustment mechanism. Over time, the threads of the lead screw and nut wear and create gaps, affecting the adjustment accuracy. Current technology replaces ordinary lead screws with high-precision ball screws and uses linear guides to reduce wear and improve adjustment accuracy. However, when adjusting the die to change the size of the plastic bottle to be produced, the complex adjustment structure requires each of the multiple lead screws and nuts to be operated carefully, resulting in reduced production efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable plastic bottle blow molding die, which aims to improve the problem of reduced production efficiency caused by the complex adjustment structure when changing the specifications of plastic bottles in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable plastic bottle blow molding mold, including multiple support legs, the top of each of the multiple support legs being fixedly connected to the same base, the top of the base being provided with a replacement mechanism, the top left and right sides of the base being provided with drive components, the bottom front and rear ends of the replacement mechanism being provided with buffer components, and the bottom of the base being provided with a waste collection mechanism for collecting waste.

[0007] The replacement mechanism includes two mold bases, the bottoms of which are slidably connected to the top left and right sides of the base, respectively. A replacement mold is slidably connected to an adjacent side of each of the two mold bases. Multiple sliding grooves are equidistantly provided on the adjacent sides of each of the two mold bases. Springs are slidably connected to the inner walls of the multiple sliding grooves. A positioning ball is fixedly connected to one end of each of the multiple springs. Multiple positioning slots are equidistantly provided on the opposite sides of each of the two replacement molds. Multiple screws are equidistantly provided on the opposite sides of each of the two mold bases. The multiple screws pass through the corresponding mold base and are threaded to the inner wall of the corresponding replacement mold. A washer is slidably connected to the outer wall of each of the multiple screws. One side of each washer is in contact with the other side of the corresponding mold base.

[0008] As a further description of the above technical solution:

[0009] The waste collection mechanism includes a conveying pipe, the top of which is fixedly connected to the bottom right side of the base. A spiral blade is rotatably connected to the inner wall of the conveying pipe, and a rotating shaft is fixedly connected to the inner wall of the spiral blade. A discharge trough is provided at the right end of the spiral blade. A servo motor is provided on the left side of the conveying pipe, and the output end of the servo motor is fixedly connected to the left end of the spiral blade. A collection box is provided on the bottom right side of the conveying pipe, and the front and rear sides of the collection box are respectively fixedly connected to the adjacent sides of the two support legs on the right side. A collection groove is provided in the middle of the base, and a fixing component is fixedly connected to the bottom left side of the base.

[0010] As a further description of the above technical solution:

[0011] The drive assembly includes two fixed plates, the bottoms of which are fixedly connected to the top left and right sides of the support leg, respectively. Triangular blocks are fixedly connected to the bottom of adjacent sides of the two fixed plates, and the bottoms of the two triangular blocks are fixedly connected to the top of the base. Hydraulic rods are fixedly connected to adjacent sides of the two fixed plates, and one end of each hydraulic rod is fixedly connected to the other side of the corresponding mold base.

[0012] As a further description of the above technical solution:

[0013] The buffer assembly includes two guide rails, the bottom of which is fixedly connected to the front and rear sides of the top of the base, respectively. The outer walls of the two guide rails are slidably connected to the front and rear sides of the bottom of the two mold bases, respectively. Fixing blocks are fixedly connected to the left and right sides of the two guide rails, and buffer pads are fixedly connected to the left and right sides of the top of the two guide rails. One side of each of the fixing blocks is fixedly connected to the other side of the corresponding buffer pad.

[0014] As a further description of the above technical solution:

[0015] The fixing assembly includes a base plate, the top of which is fixedly connected to the bottom of the servo motor. Connecting plates are fixedly connected to the front and rear sides of the top of the base plate. The top of each of the two connecting plates is fixedly connected to the same mounting plate. Screws are provided at the four corners of the bottom of the mounting plate. Multiple screws penetrate the mounting plate and are threaded to the bottom of the base. Washers are slidably connected to the outer walls of the multiple screws. The tops of the multiple washers are in contact with the bottom of the mounting plate.

[0016] As a further description of the above technical solution:

[0017] Guide grooves are provided on the front and rear sides of the top of the two mold bases, and corresponding guide rods are slidably connected to the inner walls of the multiple guide grooves. Limit blocks are fixedly connected to the left and right ends of the two guide rods.

[0018] As a further description of the above technical solution:

[0019] A sealing ring is fixedly connected to the right side of the replacement mold on the left side, and a sealing groove is opened on the left side of the replacement mold on the right side. The inner wall of the sealing groove is slidably connected to the outer wall of the sealing ring.

[0020] As a further description of the above technical solution:

[0021] Multiple dovetail positioning blocks are fixedly connected to the opposite sides of the two replacement molds. Multiple dovetail positioning grooves are opened on the adjacent sides of the two mold bases. The inner walls of the multiple dovetail positioning grooves are slidably connected to the outer walls of the corresponding dovetail positioning blocks.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when it is necessary to change the production specifications of plastic bottles, the hydraulic rod pulls the mold base away, the buffer pad buffers the impact force, the screw is loosened, the mold is disconnected from the mold base, the old mold is removed, the mold adapted to the new specifications is aligned with the mold base slide groove and inserted, the positioning ball is squeezed to compress the spring, after alignment the spring rebounds, the mold is initially positioned, the shim is put on, and the screw is screwed in for further fixation. This process is simple, requires no complicated adjustment, saves time, improves production efficiency, and can quickly adapt to the production of different specifications.

[0024] 2. In this utility model, waste material falls into the top inlet of the conveying pipe through the collection trough in the middle of the base. The servo motor drives the spiral blades to rotate around the shaft in the pipe, pushing the waste material to the right and into the collection box below through the discharge trough. The fixing component stabilizes the servo motor, the base plate supports the bottom of the motor, and it is connected to the mounting plate through the connecting plate. The mounting plate is fixed to the left side of the bottom of the base with screws with washers, realizing the automatic collection of waste material, avoiding scattering, and keeping the environment clean. Attached Figure Description

[0025] Figure 1 This is a perspective view of the adjustable plastic bottle blow molding die proposed in this utility model;

[0026] Figure 2 This is a front view of the adjustable plastic bottle blow molding die proposed in this utility model;

[0027] Figure 3 This is an exploded view of the conveying pipe structure of the adjustable plastic bottle blow molding die proposed in this utility model;

[0028] Figure 4 This is an exploded view of the replaceable mold structure of the adjustable plastic bottle blow molding mold proposed in this utility model;

[0029] Figure 5 This is an exploded view of the sealing ring structure of the adjustable plastic bottle blow molding die proposed in this utility model.

[0030] Legend:

[0031] 1. Support leg; 2. Changing mechanism; 201. Mold base; 202. Mold changing mechanism; 203. Slide; 204. Spring; 205. Positioning ball; 206. Positioning groove one; 207. Shim one; 208. Screw one; 3. Waste collection mechanism; 301. Conveying pipe; 302. Spiral blade; 303. Rotating shaft; 304. Discharge chute; 305. Servo motor; 306. Collection box; 307. Fixing assembly; 3071. Base plate; 3072. 1. Connecting plate; 3073. Mounting plate; 3074. Two screws; 3075. Two washers; 308. Collection groove; 4. Base; 5. Drive assembly; 501. Fixing plate; 502. Triangular block; 503. Hydraulic rod; 6. Buffer assembly; 601. Guide rail; 602. Fixing block; 603. Buffer pad; 7. Guide groove; 8. Guide rod; 9. Limiting block; 10. Sealing ring; 11. Sealing groove; 12. Dovetail positioning block; 13. Dovetail positioning groove II. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of an adjustable plastic bottle blow molding mold, including multiple support legs 1 for stable support. The tops of the multiple support legs 1 are all fixedly connected to the same base 4, which serves as an installation platform. A replacement mechanism 2 is provided on the top of the base 4 for quick replacement of plastic bottle molds of different specifications. Driving components 5 are provided on the left and right sides of the top of the base 4, providing power for the movement of the replacement mechanism 2. Buffer components 6 are provided at the front and rear ends of the bottom of the replacement mechanism 2 to buffer the impact force generated during the movement of the replacement mechanism 2. A waste collection mechanism 3 is provided at the bottom of the base 4 for collecting waste. The replacement mechanism 2 includes two mold bases 201. 201 provides an installation carrier for the replacement mold 202. The bottoms of the two mold bases 201 are slidably connected to the top left and right sides of the base 4, respectively, realizing the movable function of the mold bases 201 on the top of the support legs 1. The replacement molds 202 are slidably connected to adjacent sides of the two mold bases 201, which facilitates the replacement of plastic bottle molds of different specifications. Multiple sliding grooves 203 are equally spaced on adjacent sides of the two mold bases 201. The sliding grooves 203 provide installation space for springs 204 and positioning balls 205. Springs 204 are slidably connected to the inner walls of the multiple sliding grooves 203. The springs 204 provide elasticity to the positioning balls 205. One end of each of the multiple springs 204 is fixedly connected to a positioning ball 205. The positioning ball 205 cooperates with the positioning groove 206 to realize the initial positioning of the replacement mold 202. For step positioning, multiple positioning grooves 206 are equally provided on the opposite sides of the two replacement molds 202. The positioning grooves 206 cooperate with positioning balls 205 to position the replacement molds 202. The inner walls of the multiple positioning grooves 206 are slidably connected to the outer walls of the corresponding positioning balls 205, achieving sliding positioning of the positioning balls 205 within the positioning grooves 206. Multiple screws 208 are equally spaced on the opposite sides of the two mold bases 201. The screws 208 are used to further fix the replacement molds 202 and mold bases 201. The multiple screws 208 penetrate the corresponding mold bases 201 and are threaded onto the inner walls of the corresponding replacement molds 202, achieving a tight connection between the replacement molds 202 and mold bases 201. The outer wall is slidably connected with gaskets 207. Gaskets 207 protect the surface of the mold base 201 and enhance connection stability. One side of each gasket 207 is respectively attached to the other side of the corresponding mold base 201. The drive assembly 5 includes two fixing plates 501. The fixing plates 501 provide fixed support for the hydraulic rod 503. The bottom of the two fixing plates 501 is fixedly connected to the top left and right sides of the support leg 1, respectively, to securely install the fixing plates 501 on the support leg 1. Triangular blocks 502 are fixedly connected to the bottom of each adjacent side of the two fixing plates 501. The triangular blocks 502 enhance the stability of the connection between the fixing plates 501 and the base 4. The bottom of each of the two triangular blocks 502 is fixedly connected to the top of the base 4, realizing the connection between the triangular blocks 502 and the base 4.Hydraulic rods 503 are fixedly connected to adjacent sides of the two fixed plates 501. The hydraulic rods 503 push the mold base 201 to move. One end of each hydraulic rod 503 is fixedly connected to the other side of the corresponding mold base 201, enabling the hydraulic rods 503 to effectively drive the mold base 201. The buffer assembly 6 includes two guide rails 601, which provide guidance for the movement of the mold base 201. The bottoms of the two guide rails 601 are fixedly connected to the front and rear sides of the top of the base 4, respectively, securing the guide rails 601 firmly onto the base 4. The outer walls are slidably connected to the bottom front and rear sides of the two mold bases 201, allowing the mold bases 201 to slide smoothly along the guide rails 601. Fixing blocks 602 are fixedly connected to the left and right sides of each of the two guide rails 601, and the fixing blocks 602 are used to fix the buffer pads 603. Buffer pads 603 are also fixedly connected to the top left and right sides of each of the two guide rails 601. The buffer pads 603 buffer the impact force when the mold bases 201 move. One side of each of the multiple fixing blocks 602 is fixedly connected to the other side of the corresponding buffer pad 603, ensuring that the buffer pads 603 are securely installed.

[0034] Specifically, the hydraulic rod 503 pulls the mold base 201 to move away from each other. After reaching the appropriate position, it contacts the buffer pad 603. The buffer pad 603 can effectively buffer the impact force generated when the mold base 201 moves, avoiding damage to the mold. First, loosen multiple screws 208 and unscrew them from the inner wall of the replacement mold 202. The gasket 207 will then detach. At this time, the tight connection between the replacement mold 202 and the mold base 201 is released. Since the connection between the positioning ball 205 and the positioning groove 206 becomes loose after the screws 208 are loosened, the old replacement mold 202 can be easily removed from the mold base 201. After disassembly, the replacement mold 202 adapted for the production of new specification plastic bottles is aligned with the slide groove 203 on the mold base 201 and inserted. During the insertion process... The positioning ball 205 is squeezed by the changing mold 202, compressing the spring 204 in the slide groove 203. When the positioning groove 206 is aligned with the positioning ball 205, the spring 204 rebounds, and the positioning ball 205 is inserted into the positioning groove 206, so that the changing mold 202 is initially positioned on the mold base 201. Then, multiple washers 207 are respectively placed on the outer wall of the screw 208, and the screw 208 is then passed through the mold base 201 and screwed into the inner wall of the changing mold 202. The changing mold 202 is further fixed by tightening the screw 208 to ensure a stable connection. The entire changing process is simple to operate, without the need for fine adjustment of the complex screw and nut structure, saving time for changing the molding mold, improving production efficiency, and enabling the production line to quickly adapt to the production needs of plastic bottles of different specifications.

[0035] Reference Figure 1 , Figure 2 and Figure 3The waste collection mechanism 3 includes a conveying pipe 301, which guides the conveying path of the waste. The top of the conveying pipe 301 is fixedly connected to the bottom right side of the base 4, connecting the conveying pipe 301 to the base 4 to collect the waste generated on the base 4. A spiral blade 302 is rotatably connected to the inner wall of the conveying pipe 301, which pushes the waste to move within the conveying pipe 301. A rotating shaft 303 is fixedly connected to the inner wall of the spiral blade 302, providing rotational support for the spiral blade 302. A discharge trough 304 is provided at the right end of the spiral blade 302, which discharges the waste to... A servo motor 305 is installed on the left side of the conveying pipe 301, providing power for the rotation of the spiral blade 302. The output end of the servo motor 305 is fixedly connected to the left end of the spiral blade 302. A collection box 306 is installed on the bottom right side of the conveying pipe 301. The collection box 306 is used to collect waste materials. The front and rear sides of the collection box 306 are fixedly connected to the adjacent sides of the two right-side support legs 1, respectively, to securely install the collection box 306 on the support legs 1. A collection groove 308 is opened in the middle of the base 4. The collection groove 308 is used to collect the waste materials generated during the blow molding process and guide them into the conveying pipe 301. A fixing component 307 is fixedly connected to the bottom left side of the base 4. The fixing component 307 is used to stabilize the servo motor 305. The fixing component 307 includes a base plate 3071, which supports the servo motor 305. The top of the base plate 3071 is fixedly connected to the bottom of the servo motor 305, realizing the connection between the base plate 3071 and the servo motor 305. Connecting plates 3072 are fixedly connected to the front and rear sides of the top of the base plate 3071. The connecting plates 3072 are used to connect the base plate 3071 and the mounting plate 3073. The top of both connecting plates 3072 is fixedly connected to the same mounting plate 3073. The mounting plate 3073 is used to connect the base plate 3071 and the mounting plate 3073 with screws. Screw 3074 is connected to base 4. Screw 3074 is provided at each of the four corners of the bottom of mounting plate 3073. Screw 3074 is used to fix mounting plate 3073 to the bottom of base 4. Multiple screws 3074 penetrate mounting plate 3073 and are threaded to the bottom of base 4 to achieve a firm connection between mounting plate 3073 and base 4. Washers 3075 are slidably connected to the outer wall of multiple screws 3074. Washers 3075 are used to protect the bottom of mounting plate 3073 and enhance connection stability. The top of multiple washers 3075 fits against the bottom of mounting plate 3073 to ensure that washers 3075 function effectively.

[0036] Specifically, the waste material falls through the collection trough 308 in the middle of the base 4 to the top inlet of the conveying pipe 301. The output end of the servo motor 305 drives the spiral blade 302 to rotate around the shaft 303 on the inner wall of the conveying pipe 301. As the spiral blade 302 rotates, the waste material is pushed by the spiral blade 302 to the right along the conveying pipe 301. When the waste material reaches the discharge trough 304 at the right end of the spiral blade 302, it falls from the discharge trough 304 into the collection box 306 below. The fixing component 307 stabilizes the servo motor. The function of motor 305 is to support the bottom of servo motor 305 on base plate 3071 and connect it to mounting plate 3073 through connecting plates 3072 on the front and rear sides of the top. Mounting plate 3073 is fixed to the bottom left of base 4 by screws 3074 with washers 3075. Washers 3075 prevent the bottom of mounting plate 3073 from being damaged during screw tightening and enhance the stability of the connection. This realizes the automated process of waste from collection to conveying and then to centralized collection, avoids waste scattering and keeps the working environment clean.

[0037] Reference Figure 1 , Figure 2 and Figure 4 Both mold bases 201 have guide grooves 7 on their top front and rear sides. These guide grooves 7 provide sliding tracks for guide rods 8. Corresponding guide rods 8 are slidably connected to the inner walls of multiple guide grooves 7. The guide rods 8 slide along the guide grooves 7. Limiting blocks 9 are fixedly connected to the left and right ends of both guide rods 8. These limiting blocks 9 prevent the guide rods 8 from dislodging from the guide grooves 7 and limit their sliding range. Sealing rings 10 are fixedly connected to the right side of the left replacement mold 202. The sealing rings 10 cooperate with the sealing grooves 11 of the right replacement mold 202 to enhance the sealing performance when the two replacement molds 202 are closed. A sealing groove 11 is provided on the left side of the right replacement mold 202 to accommodate the sealing rings 10, achieving a sealing fit between the two. The inner wall is slidably connected to the outer wall of the sealing ring 10, so that the sealing ring 10 can be smoothly embedded into the sealing groove 11 during the mold closing process of the two replacement molds 202. Multiple dovetail positioning blocks 12 are fixedly connected to the opposite sides of the two replacement molds 202. The dovetail positioning blocks 12 cooperate with the dovetail positioning grooves 13 on the mold base 201 to assist the replacement molds 202 in being accurately installed on the mold base 201. Multiple dovetail positioning grooves 13 are provided on the adjacent sides of the two mold bases 201. The dovetail positioning grooves 13 provide installation and positioning space for the dovetail positioning blocks 12. The inner walls of the multiple dovetail positioning grooves 13 are slidably connected to the outer walls of the corresponding dovetail positioning blocks 12, which facilitates the installation and disassembly of the replacement molds 202 and the mold base 201 and ensures the accuracy of the installation position.

[0038] Specifically, the guide groove 7 provides a sliding track for the guide rod 8, which slides along the inner wall of the guide groove 7. The limiting block 9 prevents the guide rod 8 from coming out of the guide groove 7 and limits its sliding range. The sealing ring 10 is used to cooperate with the sealing groove 11 of the right replacement mold 202 to enhance the sealing performance when the two replacement molds 202 are closed. The sealing groove 11 is used to accommodate the sealing ring 10 to achieve a sealing fit between the two. The dovetail positioning block 12 cooperates with the dovetail positioning groove 13 on the mold base 201 to assist the replacement mold 202 in being accurately installed on the mold base 201, which facilitates the installation and disassembly of the replacement mold 202 and the mold base 201.

[0039] Working principle: When it is necessary to change the production specifications of plastic bottles, the hydraulic rod 503 pulls the mold base 201 to move away from each other. After reaching the appropriate position, it contacts the buffer pad 603. The buffer pad 603 can effectively buffer the impact force generated when the mold base 201 moves, avoiding damage to the mold. First, loosen multiple screws 208 and unscrew them from the inner wall of the replacement mold 202. The gasket 207 will then detach. At this time, the tight connection between the replacement mold 202 and the mold base 201 is released. Since the connection between the positioning ball 205 and the positioning groove 206 becomes loose after the screws 208 are loosened, the old replacement mold 202 can be easily removed from the mold base 201. After disassembly, the replacement mold 202 adapted for the production of new specification plastic bottles is aligned with the slide groove 203 on the mold base 201 and inserted. During the insertion process, the positioning ball 205 is squeezed by the replacement mold 202, compressing the spring 204 in the slide groove 203. When the positioning groove 206 is aligned with the positioning ball 205, the spring 204 rebounds, and the positioning ball 205 is inserted into the positioning groove 206, so that the replacement mold 202 is initially positioned on the mold base 201. Then, multiple washers 207 are respectively placed on the outer wall of the screw 208, and the screw 208 is then passed through the mold base 201 and screwed into the inner wall of the replacement mold 202. The replacement mold 202 is further fixed by tightening the screw 208 to ensure a stable connection. The entire replacement process is simple to operate and does not require fine adjustment of the complex screw and nut structure one by one. It saves the time of changing the molding mold, improves production efficiency, and enables the production line to quickly adapt to the production needs of plastic bottles of different specifications.

[0040] Furthermore, when waste is generated during the blow molding process of plastic bottles, it falls through the collection trough 308 in the middle of the base 4 to the top inlet of the conveying pipe 301. The output end of the servo motor 305 drives the spiral blade 302 to rotate around the shaft 303 on the inner wall of the conveying pipe 301. As the spiral blade 302 rotates, the waste is pushed by the spiral blade 302 to move to the right along the conveying pipe 301. When the waste moves to the discharge trough 304 at the right end of the spiral blade 302, it falls from the discharge trough 304 into the collection box 306 below and is fixed. Component 307 serves to stabilize the servo motor 305. The base plate 3071 supports the bottom of the servo motor 305 and is connected to the mounting plate 3073 through the connecting plates 3072 on the front and rear sides of the top. The mounting plate 3073 is fixed to the bottom left side of the base 4 by multiple screws 3074 with washers 3075. The washers 3075 prevent the bottom of the mounting plate 3073 from being damaged during the tightening of the screws and enhance the stability of the connection. This realizes the automated process of waste from collection to conveying and then to centralized collection, avoids waste scattering, and keeps the working environment clean.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Adjustable plastic bottle blow molding mold comprising a plurality of support legs (1), characterized in that: The top of each of the multiple support legs (1) is fixedly connected to the same base (4). The top of the base (4) is provided with a replacement mechanism (2). The top left and right sides of the base (4) are provided with drive components (5). The bottom front and rear ends of the replacement mechanism (2) are provided with buffer components (6). The bottom of the base (4) is provided with a waste collection mechanism (3). The waste collection mechanism (3) is used to collect waste. The replacement mechanism (2) includes two mold bases (201). The bottoms of the two mold bases (201) are slidably connected to the top left and right sides of the base (4). A replacement mold (202) is slidably connected to an adjacent side of each of the two mold bases (201). Multiple grooves (203) are equidistantly provided on an adjacent side of each of the two mold bases (201). Springs (204) are slidably connected to the inner walls of the multiple grooves (203). A positioning ball (205) is fixedly connected to one end of each of the multiple springs (204). Multiple positioning grooves (206) are equally provided on the opposite side of the mold changing (202). Multiple screws (208) are equally spaced on the opposite side of the two mold bases (201). The multiple screws (208) pass through the corresponding mold bases (201) and are threaded to the inner wall of the corresponding mold changing (202). The outer wall of the multiple screws (208) is slidably connected with a washer (207). One side of the multiple washer (207) is respectively attached to the other side of the corresponding mold base (201).

2. The adjustable plastic bottle blow molding mold of claim 1, wherein: The waste collection mechanism (3) includes a conveying pipe (301), the top of which is fixedly connected to the bottom right side of the base (4), a spiral blade (302) is rotatably connected to the inner wall of the conveying pipe (301), a rotating shaft (303) is fixedly connected to the inner wall of the spiral blade (302), a discharge trough (304) is opened at the right end of the spiral blade (302), a servo motor (305) is provided on the left side of the conveying pipe (301), the output end of the servo motor (305) is fixedly connected to the left end of the spiral blade (302), a collection box (306) is provided on the bottom side of the right end of the conveying pipe (301), the front and rear sides of the collection box (306) are fixedly connected to the adjacent side of the two support legs (1) on the right side, a collection trough (308) is opened in the middle of the base (4), and a fixing component (307) is fixedly connected to the bottom left side of the base (4).

3. The adjustable plastic bottle blow mold of claim 1, wherein: The drive assembly (5) includes two fixing plates (501). The bottom of the two fixing plates (501) is fixedly connected to the top left and right sides of the support leg (1), respectively. Triangular blocks (502) are fixedly connected to the bottom of adjacent sides of the two fixing plates (501). The bottom of the two triangular blocks (502) is fixedly connected to the top of the base (4). Hydraulic rods (503) are fixedly connected to adjacent sides of the two fixing plates (501). One end of the two hydraulic rods (503) is fixedly connected to the other side of the corresponding mold base (201).

4. The adjustable plastic bottle blow molding die according to claim 1, characterized in that: The buffer assembly (6) includes two guide rails (601). The bottom of the two guide rails (601) is fixedly connected to the front and rear sides of the top of the base (4). The outer walls of the two guide rails (601) are slidably connected to the front and rear sides of the bottom of the two mold bases (201). Fixing blocks (602) are fixedly connected to the left and right sides of the two guide rails (601). Buffer pads (603) are fixedly connected to the left and right sides of the top of the two guide rails (601). One side of each of the fixing blocks (602) is fixedly connected to the other side of the corresponding buffer pad (603).

5. The adjustable plastic bottle blow mold of claim 2, wherein: The fixing component (307) includes a base plate (3071), the top of which is fixedly connected to the bottom of the servo motor (305). Connecting plates (3072) are fixedly connected to the front and rear sides of the top of the base plate (3071). The top of the two connecting plates (3072) is fixedly connected to the same mounting plate (3073). Screws (3074) are provided at the four corners of the bottom of the mounting plate (3073). Multiple screws (3074) penetrate the mounting plate (3073) and are threaded to the bottom of the base (4). Washers (3075) are slidably connected to the outer walls of the multiple screws (3074). The tops of the multiple washers (3075) are in contact with the bottom of the mounting plate (3073).

6. The adjustable plastic bottle blow mold of claim 1, wherein: Guide grooves (7) are provided on the front and rear sides of the top of the two mold bases (201), and corresponding guide rods (8) are slidably connected to the inner walls of the multiple guide grooves (7). Limiting blocks (9) are fixedly connected to the left and right ends of the two guide rods (8).

7. The adjustable plastic bottle blow mold of claim 1, wherein: A sealing ring (10) is fixedly connected around the right side of the replacement mold (202) on the left side, and a sealing groove (11) is opened on the left side of the replacement mold (202) on the right side. The inner wall of the sealing groove (11) is slidably connected to the outer wall of the sealing ring (10).

8. The adjustable plastic bottle blow mold of claim 1, wherein: Multiple dovetail positioning blocks (12) are fixedly connected to the opposite sides of the two replacement molds (202), and multiple dovetail positioning grooves (13) are opened on the adjacent sides of the two mold bases (201). The inner walls of the multiple dovetail positioning grooves (13) are slidably connected to the outer walls of the corresponding dovetail positioning blocks (12).

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