A plastic bottle production device

Abstract

The application relates to the technical field of blow molding, and specifically discloses a plastic bottle production device, which comprises a processing table, a rotating rod is rotationally connected to the inner wall of the processing table, a conveying belt is sleeved on the outer surface of the rotating rod, a clamping assembly is placed on the outer surface of the conveying belt, a temperature control chamber is fixedly installed on the upper surface of the processing table, a stretching rod is slidably connected to the inner cavity of the processing table, and a fixing frame is fixedly installed on the upper surface of the processing table. The clamping assembly can be adjusted according to the size of a bottle embryo, can position different specifications of bottle embryos, and can flexibly clamp the bottle embryo. In the feeding process, the bottle embryo can always be kept at the middle part. The blow molding assembly can always align the molds in the case of long-time use, can timely send out an alarm when the molds are inclined or not aligned, improves timely maintenance of workers, and ensures uniform wall thickness of the bottle in blow molding.

Description

Technical Field

[0001] This application relates to the field of blow molding technology, and more particularly to a plastic bottle production apparatus. Background Technology

[0002] Plastic bottles are mainly made from materials such as polyethylene or polypropylene with the addition of various organic solvents. Plastic bottles widely use polyester (PET), polyethylene (PE), and polypropylene (PP) as raw materials. After adding appropriate organic solvents, they are heated at high temperatures and then molded into plastic containers through blow molding, extrusion blow molding, or injection molding. The production technology of plastic bottles is constantly improving and being optimized. However, the existing technology still has the following problems:

[0003] 1. In the production of plastic bottles, preforms need to be blow-molded. During the feeding of preforms, a clamping mechanism is needed to limit their position. However, the preforms need to be heated and softened during blow molding. Ordinary clamping mechanisms are too rigid and may apply too much pressure to the preforms when they are softened at high temperatures, causing them to deform. On the other hand, if the clamping force is too weak, the preforms may become unstable and tip over. At the same time, it is difficult to keep the preforms in the center during the feeding process. Preform displacement may lead to quality problems such as internal wrinkles.

[0004] 2. Although existing molds all have limiting mechanisms, bending during use is difficult to detect in time. That is, under long-term use, the mold is prone to displacement during pressing, resulting in misalignment between molds. This leads to uneven wall thickness, irregular shape, and even breakage of blow-molded bottles. In addition, during long-term blow molding, the mold as a whole will tilt. Slight tilting is difficult to detect with the naked eye. Product quality problems caused by mold tilting will significantly increase the scrap rate. This not only increases production costs but also reduces the overall efficiency of the production line. Summary of the Invention

[0005] This application provides a plastic bottle production device that solves the problems of excessive rigidity of the clamping mechanism and misalignment between molds in the prior art, thereby achieving flexible clamping of the preform, mold alignment, and the ability to issue an alarm when misalignment occurs.

[0006] This application provides a plastic bottle production apparatus, including a processing table. A rotating rod is rotatably connected to the inner wall of the processing table, and a conveyor belt is sleeved on the outer surface of the rotating rod. A clamping assembly is placed on the outer surface of the conveyor belt. A temperature control chamber is fixedly installed on the upper surface of the processing table. A tension rod is slidably connected to the inner cavity of the processing table. A fixing frame is fixedly installed on the upper surface of the processing table. A blow molding assembly is disposed in the inner cavity of the fixing frame. The blow molding assembly includes a first mold, which is slidably connected to the fixing frame. A second mold is slidably connected to the top and bottom walls of the fixing frame. The first mold and the second mold are symmetrically distributed about the tension rod. The outer surfaces of the first mold and the second mold are... A mold inspection mechanism is provided on both sides, and a part of the mold inspection mechanism is fixedly connected to the first mold and a part of the mold inspection mechanism is fixedly connected to the second mold. A second connecting block is fixedly installed on the upper surface of the first mold and the second mold. A gear is rotatably connected to the middle part of the upper surface of the fixed frame. A rack is provided at both ends of the gear, and the rack and the gear mesh. The second connecting block and the rack are fixedly connected. A limit frame is fixedly installed on the upper surface of the fixed frame. The rack and the limit frame are slidably connected. A cylinder is fixedly installed on the upper surface of the fixed frame. A piston rod is slidably connected to the inner cavity of the cylinder. The piston rod and one of the racks are fixedly connected.

[0007] Furthermore, the mold inspection mechanism includes an inspection block. A fixing block is fixedly installed on the outer surface of the second mold. A horizontal inspection mechanism is fixedly installed on the outer surface of the fixing block. An inspection rod is fixedly installed on the outer surface of the fixing block away from the horizontal inspection mechanism. A limit hole is opened on the outer surface of the inspection block. The inspection rod and the limit hole are inserted into each other. The two sides of the limit hole are chamfered. A flexible limit mechanism is provided in the inner cavity of the inspection block. An adjustment mechanism is slidably connected to the inner cavity of the flexible limit mechanism. An alarm mechanism is provided on the outer surface of the inspection block. An alarm is fixedly installed on the outer surface of the inspection block.

[0008] Furthermore, the horizontal testing mechanism includes a testing frame, which is fixedly connected to the outer surface of a fixed block. A floating block is slidably connected to the inner cavity of the testing frame. A pointer is fixedly connected to the outer surface of the floating block. A gravity ball is suspended at the bottom of the floating block. Rollers are rotatably connected to both ends of the floating block, and the rollers are in contact with the inner cavity of the testing frame.

[0009] Furthermore, the flexible limiting mechanism includes a connecting frame, which is fixedly connected to the first mold. A third slide rod is slidably connected to the inner cavity of the connecting frame. A second fixing ring is fixedly installed on the outer surface of the third slide rod. A receiving cavity is opened in the inner cavity of the detection block. The second fixing ring is located in the middle of the receiving cavity. A fourth spring is sleeved on the outer surface of the third slide rod, and there are two fourth springs on one third slide rod, located on both sides of the second fixing ring respectively. Floating rods are fixedly installed at both ends of the detection block. A fifth spring is sleeved on the outer surface of the floating rod. A second sliding groove is opened at both ends of the connecting frame. The floating rod and the second sliding groove are slidably connected. There is a gap between the detection block and the connecting frame.

[0010] Furthermore, the adjusting mechanism includes a third threaded rod, with second sliders sleeved at both ends of the third threaded rod. The third threaded rod and the connecting frame are rotatably connected. The second slider and the third threaded rod are connected by threads, and the threads at both ends of the third threaded rod are in opposite directions. A receiving block is slidably connected to the outer surface of the second slider. Connecting holes are opened at both ends of the receiving block. The fifth spring is located between the detection block and the receiving block. The connecting holes and the floating rod are slidably connected.

[0011] Furthermore, the alarm mechanism includes a first connecting strip, with buttons on its upper, lower, left, and right outer surfaces. The first connecting strip is fixedly connected to the detection block. A second connecting strip is fixedly installed on the outer surface of the connecting frame. A connecting ring is fixedly installed at one end of the second connecting strip. The first connecting strip is located in the middle of the connecting ring. An adjusting bolt is connected to the inner cavity of the connecting ring by a threaded rotation. There are four adjusting bolts, and the buttons are aligned with the adjusting bolts. The buttons are electrically connected to the alarm, and pressing the buttons controls the alarm to sound an alarm.

[0012] Furthermore, the clamping assembly includes a clamping frame, the inner cavity of which is rotatably connected to a first threaded rod, the outer surface of which is sleeved with a flexible adjustment mechanism, the outer surface of which is provided with a clamping block, and the lower surface of the clamping frame is provided with a moving mechanism.

[0013] Furthermore, the flexible adjustment mechanism includes a slide, a second threaded rod rotatably connected to the inner cavity of the slide, a first slider sleeved on the outer surface of the second threaded rod, a first slide rod slidably connected to the bottom end of the first slider, a first spring sleeved on the outer surface of the first slide rod, a buffer block fixedly installed at one end of the first slide rod, a first connecting block fixedly installed on the outer surface of the buffer block, a second slide rod slidably connected to the inner cavity of the first connecting block, and a second spring sleeved on the outer surface of the second slide rod.

[0014] Furthermore, the first slider and the second threaded rod are connected by threads, and the threads at both ends of the second threaded rod are in opposite directions. The first slider and the carriage are slidably connected. The first spring is located between the buffer block and the first slider. The second spring is located between the clamping block and the first connecting block. The clamping block and the second slide rod are fixedly connected. The outer surface of the clamping block is partially hollowed out, and the hollowed-out parts of adjacent clamping blocks are staggered.

[0015] Furthermore, the moving mechanism includes a moving base, a rotating drum rotatably connected to the outer surface of the moving base, the rotating drum fitting against the side wall of the conveyor belt, a first sliding groove formed on the lower surface of the clamping frame, the moving base and the first sliding groove slidably connected, an insertion hole formed on the outer surface of the first sliding groove, an insertion rod slidably connected to the inner cavity of the moving base, a first fixing ring fixedly installed on the outer surface of the insertion rod, a third spring sleeved on the outer surface of the insertion rod, the third spring being located between the first fixing ring and the inner wall of the moving base, and the insertion rod and the insertion hole being inserted into each other.

[0016] The technical solution provided in this application has at least the following technical effects or advantages:

[0017] 1. By employing a clamping assembly, this invention effectively solves the problem of preforms needing to be blow-molded in the plastic bottle production process. During preform feeding, a clamping mechanism is required for positioning. However, blow molding first requires heating and softening the preform. Ordinary clamping mechanisms are too rigid, easily causing excessive pressure on the preform during high-temperature softening, leading to deformation. Insufficient clamping force, on the other hand, can cause instability and tipping. Furthermore, it is difficult to keep the preform centered during feeding, and preform displacement can lead to quality problems such as internal wrinkles. This invention, through its clamping assembly, can be adjusted according to the size of the preform, limiting preforms of different specifications and providing flexible clamping. This prevents deformation due to high-temperature softening before blow molding or tipping due to insufficient clamping force. Simultaneously, the preform remains centered throughout the feeding process, without positional displacement.

[0018] 2. By using blow molding components, this invention effectively solves the problem that while existing molds have limit mechanisms, bending during use is difficult to detect in a timely manner. This means that over long-term use, molds are prone to misalignment during pressing, leading to uneven bottle wall thickness, irregular shapes, and even breakage. Furthermore, during long-term blow molding, the mold as a whole may tilt, and slight tilting is difficult to detect visually. Product quality issues caused by mold tilting significantly increase the scrap rate, which not only increases production costs but also reduces the overall efficiency of the production line. This invention, through its blow molding components, ensures that the molds remain aligned even after long-term use. It also provides timely alarms when molds tilt or become misaligned, allowing for prompt maintenance by staff. This ensures uniform bottle wall thickness during blow molding, avoids producing a large number of defective products, reduces production costs, and improves overall production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application;

[0020] Figure 2 This is a schematic diagram of the tension rod structure in the embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the clamping component structure in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the flexible adjustment mechanism structure in the embodiments of this application;

[0023] Figure 5 This is a partial structural diagram of the carriage in an embodiment of this application;

[0024] Figure 6 Examples of this application Figure 5 Enlarged structural diagram at point A;

[0025] Figure 7 This is a schematic diagram of the moving mechanism structure in the embodiments of this application;

[0026] Figure 8 Examples of this application Figure 7 Enlarged structural diagram at point B;

[0027] Figure 9 This is a schematic diagram of the blow molding component structure in the embodiments of this application;

[0028] Figure 10 This is a schematic diagram of the second connecting block structure in an embodiment of this application;

[0029] Figure 11 This is a schematic diagram of the mold inspection mechanism structure in the embodiments of this application;

[0030] Figure 12 This is a schematic diagram of the horizontal detection mechanism structure in an embodiment of this application;

[0031] Figure 13 This is a schematic diagram of the flexible limiting mechanism structure in the embodiments of this application;

[0032] Figure 14 This is a schematic cross-sectional view of the detection block structure in an embodiment of this application;

[0033] Figure 15 This is a schematic diagram of the adjusting mechanism structure in the embodiments of this application;

[0034] Figure 16 This is a schematic diagram of the alarm mechanism structure in an embodiment of this application.

[0035] In the diagram: 1. Processing table; 2. Clamping assembly; 21. Clamping frame; 22. First threaded rod; 23. Flexible adjustment mechanism; 231. Slide; 232. Second threaded rod; 233. First slider; 234. First slide bar; 235. First spring; 236. Buffer block; 237. First connecting block; 238. Second slide bar; 239. Second spring; 24. Clamping block; 25. Moving mechanism; 251. Moving seat; 25 2. Rotary drum; 253. First chute; 254. Insertion hole; 255. Insertion rod; 256. First fixing ring; 257. Third spring; 3. Rotating rod; 4. Conveyor belt; 5. Temperature control chamber; 6. Tensioning rod; 7. Fixing frame; 8. Blow molding assembly; 81. First mold; 82. Second mold; 83. Mold inspection mechanism; 831. Inspection block; 832. Fixing block; 833. Horizontal inspection mechanism; 8331. Inspection frame; 8332, Floating block; 8333, Pointer; 8334, Gravity ball; 8335, Roller; 834, Detection rod; 835, Limiting hole; 836, Flexible limiting mechanism; 8361, Connecting frame; 8362, Third slide bar; 8363, Second fixing ring; 8364, Storage cavity; 8365, Fourth spring; 8366, Floating rod; 8367, Fifth spring; 8368, Second slide groove; 837, Adjustment mechanism Structure; 8371, Third threaded rod; 8372, Second slider; 8373, Storage block; 8374, Connecting hole; 838, Alarm mechanism; 8381, First connecting bar; 8382, Button; 8383, Second connecting bar; 8384, Connecting ring; 8385, Adjusting bolt; 839, Alarm; 84, Second connecting block; 85, Gear; 86, Rack; 87, Limiting bracket; 88, Cylinder; 89, Piston rod. Detailed Implementation

[0036] For clamping mechanisms that are too rigid, this invention uses a clamping component that can be adjusted according to the size of the preform, can limit the preforms of different specifications, and can flexibly clamp the preforms; for molds that are prone to misalignment during long-term use, this invention uses a blow molding component that can ensure that the molds are always aligned during long-term use, and can issue an alarm in time when the molds tilt or are misaligned.

[0037] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0038] Please see Figure 1 and Figure 2As shown, a plastic bottle production apparatus includes a processing table 1. A rotating rod 3 is rotatably connected to the inner wall of the processing table 1. A conveyor belt 4 is sleeved on the outer surface of the rotating rod 3. A clamping assembly 2 is placed on the outer surface of the conveyor belt 4. A temperature control chamber 5 is fixedly installed on the upper surface of the processing table 1. A tension rod 6 is slidably connected to the inner cavity of the processing table 1. A fixing frame 7 is fixedly installed on the upper surface of the processing table 1. A blow molding assembly 8 is provided in the inner cavity of the fixing frame 7. The rotating rod 3 drives the conveyor belt 4 through rotation. The rotating rod 3 can rotate on the processing table 1. The inner cavity is equipped with a motor that drives the rotating rod 3 to rotate, so that the clamping assembly 2 feeds the material on the conveyor belt 4. The clamping assembly 2 is used to feed the preform for blow molding. The preform is inverted on the clamping assembly 2, and the bottle mouth is located in the middle of the clamping assembly 2. The temperature control chamber 5 is used to heat the preform to soften it for subsequent blow molding. The stretching rod 6 is used to stretch the preform, so that the preform is blow molded in the inner cavity of the blow molding assembly 8. High-pressure air is used to blow the preform into the shape of the mold cavity. After blow molding, it can be cooled.

[0039] Please see Figure 3 As shown, the clamping assembly 2 includes a clamping frame 21. A first threaded rod 22 is rotatably connected to the inner cavity of the clamping frame 21. A flexible adjustment mechanism 23 is sleeved on the outer surface of the first threaded rod 22. A clamping block 24 is provided on the outer surface of the flexible adjustment mechanism 23. A moving mechanism 25 is provided on the lower surface of the clamping frame 21. The flexible adjustment mechanism 23 can be moved on the clamping frame 21 by rotating the first threaded rod 22, so that the clamping specifications of the clamping block 24 can be adjusted according to the size of the preform. The clamping block 24 is used to fix the bottle mouth of the preform. The moving mechanism 25 is used to clamp the preform onto the conveyor belt 4, so that the entire clamping assembly 2 moves to the middle part of the processing table 1.

[0040] Please see Figure 4 , Figure 5 and Figure 6As shown, the flexible adjustment mechanism 23 includes a slide 231. A second threaded rod 232 is rotatably connected to the inner cavity of the slide 231. A first slider 233 is sleeved on the outer surface of the second threaded rod 232. A first slide rod 234 is slidably connected to the bottom end of the first slider 233. A first spring 235 is sleeved on the outer surface of the first slide rod 234. A buffer block 236 is fixedly installed at one end of the first slide rod 234. A first connecting block 237 is fixedly installed on the outer surface of the buffer block 236. A second slide rod 238 is slidably connected to the inner cavity of the first connecting block 237. A second spring 235 is sleeved on the outer surface of the second slide rod 238. Spring 239, first slider 233, and second threaded rod 232 are connected by threads, with the threads at both ends of the second threaded rod 232 having opposite directions. First slider 233 and carriage 231 are slidably connected. First spring 235 is located between buffer block 236 and first slider 233. Second spring 239 is located between clamping block 24 and first connecting block 237. Clamping block 24 and second slider 238 are fixedly connected. Part of the outer surface of clamping block 24 is hollowed out, and the hollowed-out parts of adjacent clamping blocks 24 are staggered to facilitate the clamping blocks 24 approaching each other and increase the fault tolerance of clamping. The rotation of the first threaded rod 22... The movement can change the distance between the two flexible adjustment mechanisms 23. At this time, by rotating the second threaded rod 232, the first slider 233 slides in the inner cavity of the slide 231. The sliding of the first slider 233 drives the first slide rod 234 to move. The movement of the first slide rod 234 drives the buffer block 236 to move. The movement of the buffer block 236 drives the first connecting block 237 to move. The movement of the first connecting block 237 drives the second slide rod 238 to move. The movement of the second slide rod 238 drives the clamping block 24 to move, so that the clamping blocks 24 can move closer or further apart, allowing the clamping blocks 24 to clamp different sizes. The clamping force of the bottle preform and the clamping force of the clamping block 24 are both flexible. The spacing of the clamping block 24 can be adjusted according to the performance of the bottle preform, so that the clamping force of the clamping block 24 will not damage the bottle preform due to excessive force, nor will it make the bottle preform unstable due to insufficient clamping force. When the clamping block 24 is subjected to increased force, it drives the second slide rod 238 to slide in the inner cavity of the first connecting block 237. At this time, the second spring 239 is compressed by force, and at the same time, the first slide rod 234 slides in the inner cavity of the first slider 233. At this time, the first spring 235 is compressed by force, ensuring that the clamping block 24 has a flexible clamping effect and preventing damage to the bottle preform.

[0041] Please see Figure 7 and Figure 8As shown, the moving mechanism 25 includes a moving base 251, a rotating drum 252 rotatably connected to the outer surface of the moving base 251, the rotating drum 252 and the side wall of the conveyor belt 4 being in contact. A first groove 253 is formed on the lower surface of the clamping frame 21, and the moving base 251 and the first groove 253 are slidably connected. An insertion hole 254 is formed on the outer surface of the first groove 253. An insertion rod 255 is slidably connected to the inner cavity of the moving base 251. A first fixing ring 256 is fixedly installed on the outer surface of the insertion rod 255, and a third spring 257 is sleeved on the outer surface of the insertion rod 255. The third spring 257 is located between the first fixing ring 256 and the inner wall of the moving base 251. The insertion rod 255 and the insertion hole 254 are engaged. By adjusting the position of the moving base 251, the rotating drum 252 can be moved more easily. The clamping assembly 2 is positioned in the middle of the processing table 1 by contacting the side of the conveyor belt 4, keeping the preform position stable. By pulling the insertion rod 255, the first fixing ring 256 is driven to compress the third spring 257. At this time, the insertion rod 255 and the insertion hole 254 are disengaged, and the moving seat 251 is moved to the position of the inner cavity of the first slide groove 253. When the position is appropriate, the insertion rod 255 is released so that the insertion rod 255 is re-inserted into the insertion hole 254, which facilitates fixing the moving seat 251 to the lower surface of the clamping frame 21. The rotating drum 252 rotates in the inner cavity of the moving seat 251, which facilitates the contact between the rotating drum 252 and the side of the conveyor belt 4 when the conveyor belt 4 is conveying the clamping assembly 2, reducing the friction between the clamping assembly 2 and the conveyor belt 4, and making the clamping assembly 2 more stable.

[0042] Please see Figure 9 and Figure 10As shown, the blow molding assembly 8 includes a first mold 81, which is slidably connected to a fixing frame 7. A second mold 82 is slidably connected to the top and bottom walls of the fixing frame 7. The first mold 81 and the second mold 82 are symmetrically distributed about the tension rod 6. A mold detection mechanism 83 is provided on the outer surfaces of the first mold 81 and the second mold 82. The mold detection mechanism 83 is used to detect whether the positions of the first mold 81 and the second mold 82 remain stable. A partial structure of the mold detection mechanism 83 is fixedly connected to the first mold 81, and a partial structure of the mold detection mechanism 83 is fixedly connected to the second mold 82. A second connecting block 84 is fixedly installed on the upper surfaces of the first mold 81 and the second mold 82. A gear 85 is rotatably connected to the middle part of the upper surface of the fixing frame 7. A rack 86 is provided at both ends of the gear 85, and the rack 86 meshes with the gear 85. The second connecting block 84 is fixedly connected to the rack 86. A limit frame 87 is fixedly installed on the upper surface of the fixing frame 7. The rack 86 and the limit frame 84 are fixedly connected to the gear 85. The limiting frame 87 is slidably connected, and the upper surface of the fixed frame 7 is fixedly installed with a cylinder 88. The inner cavity of the cylinder 88 is slidably connected with a piston rod 89. The piston rod 89 and one of the racks 86 are fixedly connected. During blow molding, when the preform reaches between the first mold 81 and the second mold 82, the operation of the cylinder 88 drives the piston rod 89 to slide in the inner cavity of the cylinder 88. The sliding of the cylinder 88 drives the rack 86 to slide in the inner cavity of the limiting frame 87. The sliding of the rack 86 drives the gear 85 to rotate, thereby causing the rack 86 to drive the two second connecting blocks 84 to move. The movement of the second connecting blocks 84 causes the first mold 81 and the second mold 82 to move closer to each other. At this time, the tension rod 6 passes through the bottom of the clamping assembly 2 and gradually blows the preform. The clamping assembly 2 always clamps and limits the bottle mouth of the preform, so that the preform is tightly fitted with the inner cavity of the first mold 81 and the second mold 82. After the blowing is completed, the cylinder 88 drives the first mold 81 and the second mold 82 to separate again, and the preform blow molding is completed.

[0043] Please see Figure 10 , Figure 11 and Figure 13As shown, the mold inspection mechanism 83 includes an inspection block 831. A fixing block 832 is fixedly installed on the outer surface of the second mold 82. A horizontal inspection mechanism 833 is fixedly installed on the outer surface of the fixing block 832. An inspection rod 834 is fixedly installed on the outer surface of the fixing block 832 away from the horizontal inspection mechanism 833. A limiting hole 835 is formed on the outer surface of the inspection block 831. The inspection rod 834 and the limiting hole 835 are inserted into each other. The two sides of the limiting hole 835 are chamfered. A flexible limiting mechanism 836 is provided in the inner cavity of the inspection block 831. An adjusting mechanism 837 is slidably connected to the inner cavity of the flexible limiting mechanism 836. The adjusting mechanism 837 is used to adjust the tightness of the inspection block 831. An alarm mechanism 838 is provided on the outer surface of the 1, and an alarm 839 is fixedly installed on the outer surface of the detection block 831. When the first mold 81 and the second mold 82 are close together, the detection block 831 and the fixed block 832 are driven to move closer to each other. At this time, the detection rod 834 and the limiting hole 835 are inserted. When the position of the first mold 81 and the second mold 82 is offset, the detection rod 834 will contact the chamfer on the side of the limiting hole 835, causing the detection block 831 to shake in the inner cavity of the flexible limiting mechanism 836, which will trigger the alarm mechanism 838 to trigger the alarm 839 to sound an alarm. The horizontal detection mechanism 833 is used to determine whether the first mold 81 and the second mold 82 are perpendicular to ensure that the preform is subjected to uniform force during blow molding.

[0044] Please see Figure 11 and Figure 12 As shown, the horizontal detection mechanism 833 includes a detection frame 8331. The detection frame 8331 and the outer surface of the fixed block 832 are fixedly connected. A floating block 8332 is slidably connected to the inner cavity of the detection frame 8331. A pointer 8333 is fixedly connected to the outer surface of the floating block 8332. A gravity ball 8334 is suspended from the bottom end of the floating block 8332. Rollers 8335 are rotatably connected to both ends of the floating block 8332. The rollers 8335 are in contact with the inner cavity of the detection frame 8331. When the second mold 82 tilts, it causes the fixed block 832 to tilt. The tilting of the fixed block 832 causes the detection frame 8331 to tilt. The tilting of the detection frame 8331 causes the floating block 8332 to slide within the inner cavity of the detection frame 8331. At this time, the rollers... 8335 rotates within the cavity of the testing frame 8331. The pointer 8333 can be used to observe the offset position of the floating block 8332 on the testing frame 8331. The gravity ball 8334 is used to keep the floating block 8332 in the middle of the testing frame 8331 when the testing frame 8331 is horizontal. By observing whether the pointer 8333 deviates on the testing frame 8331, it can be determined whether the second mold 82 is tilted. At the same time, when the first mold 81 is tilted while the second mold 82 is normal, the testing rod 834 and the limiting hole 835 are difficult to accurately fit together. Thus, it can be determined whether the first mold 81 and the second mold 82 are tilted during use, so that the plastic bottle blow-molded from the preform is subjected to uniform force.

[0045] Please see Figure 13 , Figure 14 , Figure 15 and Figure 16As shown, the flexible limiting mechanism 836 includes a connecting frame 8361, which is fixedly connected to the first mold 81. A third slide rod 8362 is slidably connected to the inner cavity of the connecting frame 8361. A second fixing ring 8363 is fixedly installed on the outer surface of the third slide rod 8362. A receiving cavity 8364 is opened in the inner cavity of the detection block 831. The second fixing ring 8363 is located in the middle of the receiving cavity 8364. A fourth spring 8365 is sleeved on the outer surface of the third slide rod 8362, and there are two fourth springs 8365 on one third slide rod 8362, located on both sides of the second fixing ring 8363. Floating rods 8366 are fixedly installed at both ends of the detection block 831. A fifth spring 8367 is sleeved on the outer surface of the floating rods 8366. The detector block 831 has second sliding grooves 8368 at both ends. The floating rod 8366 and the second sliding groove 8368 are slidably connected. There is a gap between the detector block 831 and the connecting frame 8361. The adjusting mechanism 837 includes a third threaded rod 8371. The two ends of the third threaded rod 8371 are sleeved with second sliders 8372. The third threaded rod 8371 and the connecting frame 8361 are rotatably connected. The second sliders 8372 and the third threaded rod 8371 are connected by threads, and the threads at both ends of the third threaded rod 8371 are in opposite directions. The outer surface of the second slider 8372 is slidably connected with a receiving block 8373. The two ends of the receiving block 8373 have connecting holes 8374. The fifth spring 8367 is located between the detector block 831 and the receiving block 8373. 4. The floating rod 8366 is slidably connected. The alarm mechanism 838 includes a first connecting bar 8381. Buttons 8382 are provided on the upper, lower, left, and right outer surfaces of the first connecting bar 8381. The first connecting bar 8381 is fixedly connected to the detection block 831. A second connecting bar 8383 is fixedly installed on the outer surface of the connecting frame 8361. A connecting ring 8384 is fixedly installed at one end of the second connecting bar 8383. The first connecting bar 8381 is located in the middle of the connecting ring 8384. An adjusting bolt 8385 is rotatably connected to the inner cavity of the connecting ring 8384 by a thread. There are four adjusting bolts 8385, and the buttons 8382 are aligned with the adjusting bolts 8385. The buttons 8382 are electrically connected to the alarm 839. Pressing the buttons 8382 controls the alarm 839. An alarm is triggered when the first mold 81 and the second mold 82 cannot fully fit together. The detection rod 834 presses against the chamfer of the limiting hole 835, exerting pressure on the detection block 831. This causes the detection block 831 to move, which in turn moves the first connecting strip 8381. This movement then moves the button 8382, causing it to contact the adjusting bolt 8385. The adjusting bolt 8385 then presses against the button 8382, triggering an alarm 839. This alerts the operator that the positions of the first mold 81 and the second mold 82 have shifted, requiring equipment maintenance to prevent the mass production of defective plastic bottles.The flexible limiting mechanism 836 is used to flexibly fix the detection block 831. Specifically, the elastic force of the adjusting bolt 8385 keeps the second fixing ring 8363 in the middle position inside the receiving cavity 8364. This allows the detection block 831 to move along the direction of the third sliding rod 8362 when under force, while the third sliding rod 8362 slides inside the connecting frame 8361. When the connecting frame 8361 receives pressure from the floating rod 8366, the detection block 831 drives the floating rod 8366 to compress the fifth spring 8367. At this time, the detection block 831 can move in the direction of the floating rod 8366. The floating rod 8366 slides on the second sliding groove 8368 to prevent it from limiting the detection block 831. When the detection block 831 moves, it will cause the button 8382 to contact the adjusting bolt 8385, thus issuing an alarm to remind the operator to maintain the equipment. The mechanism can also be adjusted by rotation. The bolt 8385 changes the distance between the adjusting bolt 8385 and the button 8382. By controlling the distance, the first mold 81 and the second mold 82 are controlled to reach the specified distance, triggering an alarm. Rotating the third threaded rod 8371 causes the second slider 8372 to slide within the connecting frame 8361, changing the elastic force of the fifth spring 8367. This prevents the fifth spring 8367 from becoming insufficiently elastic over long-term use, increasing its tolerance. The storage block 8373 and the second slider 8372 are slidably connected, preventing the storage block 8373 from limiting the detection block 831 when it is fitted with the floating rod 8366. By checking whether the detection rod 834 is engaged with the limiting hole 835, it can be determined whether the first mold 81 and the second mold 82 are completely fitted. This prevents misalignment during mold pressing, avoiding uneven bottle wall thickness and irregular shape, improving yield, and reducing production costs.

[0046] In summary, the rotating rod 3 drives the conveyor belt 4 through rotation. A motor located inside the processing table 1 drives the rotating rod 3 to rotate, causing the clamping assembly 2 to feed material onto the conveyor belt 4. The clamping assembly 2 is used to feed the preform for blow molding. The preform is inverted on the clamping assembly 2, with the bottle mouth located in the middle of the clamping assembly 2. The temperature control chamber 5 is used to heat the preform, softening it for subsequent blow molding. The stretching rod 6 stretches the preform, allowing it to be blow-molded within the cavity of the blow molding assembly 8. Rotating the first threaded rod 22 drives the flexible adjustment mechanism 23 to move on the clamping frame 21, facilitating adjustment according to the preform. The size of the clamping block 24 is adjusted to fix the bottle mouth of the preform. The moving mechanism 25 is used to facilitate the clamping of the conveyor belt 4, so that the clamping assembly 2 moves in the middle of the processing table 1. The operation of the cylinder 88 drives the first mold 81 and the second mold 82 to move closer to each other. At this time, the tension rod 6 passes through the bottom of the clamping assembly 2 and gradually blows the preform. The clamping assembly 2 always clamps and limits the bottle mouth of the preform, so that the preform is tightly fitted with the inner cavity of the first mold 81 and the second mold 82. After the blowing is completed, the cylinder 88 drives the first mold 81 and the second mold 82 to separate again, and the preform blow molding is completed.

[0047] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0048] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A plastic bottle production apparatus, comprising a processing table (1), characterized in that, The inner wall of the processing table (1) is rotatably connected to a rotating rod (3), the outer surface of the rotating rod (3) is sleeved with a conveyor belt (4), the outer surface of the conveyor belt (4) is placed with a clamping assembly (2), the upper surface of the processing table (1) is fixedly installed with a temperature control chamber (5), the inner cavity of the processing table (1) is slidably connected with a tension rod (6), the upper surface of the processing table (1) is fixedly installed with a fixing frame (7), and the inner cavity of the fixing frame (7) is provided with a blow molding assembly (8). The blow molding assembly (8) includes a first mold (81), which is slidably connected to a fixing frame (7). A second mold (82) is slidably connected to the top and bottom walls of the fixing frame (7). The first mold (81) and the second mold (82) are symmetrically distributed about the tension rod (6). A mold detection mechanism (83) is provided on the outer surfaces of the first mold (81) and the second mold (82). A partial structure of the mold detection mechanism (83) is fixedly connected to the first mold (81), and a partial structure of the mold detection mechanism (83) is fixedly connected to the second mold (82). The upper surfaces of the first mold (81) and the second mold (82) are fixed. A second connecting block (84) is installed. A gear (85) is rotatably connected to the middle part of the upper surface of the fixed frame (7). A rack (86) is provided at both ends of the gear (85). The rack (86) and the gear (85) mesh. The second connecting block (84) and the rack (86) are fixedly connected. A limit frame (87) is fixedly installed on the upper surface of the fixed frame (7). The rack (86) and the limit frame (87) are slidably connected. A cylinder (88) is fixedly installed on the upper surface of the fixed frame (7). A piston rod (89) is slidably connected to the inner cavity of the cylinder (88). The piston rod (89) and one of the racks (86) are fixedly connected. The mold detection mechanism (83) includes a detection block (831). A fixing block (832) is fixedly installed on the outer surface of the second mold (82). A horizontal detection mechanism (833) is fixedly installed on the outer surface of the fixing block (832). A detection rod (834) is fixedly installed on the outer surface of the fixing block (832) away from the horizontal detection mechanism (833). A limiting hole (835) is opened on the outer surface of the detection block (831). The detection rod (834) and the limiting hole (835) are inserted into each other. The two sides of the limiting hole (835) are chamfered. A flexible limiting mechanism (836) is provided in the inner cavity of the detection block (831). An adjusting mechanism (837) is slidably connected in the inner cavity of the flexible limiting mechanism (836). An alarm mechanism (838) is provided on the outer surface of the detection block (831). An alarm (839) is fixedly installed on the outer surface of the detection block (831). The horizontal detection mechanism (833) includes a detection frame (8331), the outer surface of the detection frame (8331) and the fixed block (832) are fixedly connected, a floating block (8332) is slidably connected to the inner cavity of the detection frame (8331), a pointer (8333) is fixedly connected to the outer surface of the floating block (8332), a gravity ball (8334) is suspended at the bottom end of the floating block (8332), and rollers (8335) are rotatably connected to both ends of the floating block (8332), and the rollers (8335) are in contact with the inner cavity of the detection frame (8331). The flexible limiting mechanism (836) includes a connecting frame (8361), which is fixedly connected to the first mold (81). A third slide rod (8362) is slidably connected to the inner cavity of the connecting frame (8361). A second fixing ring (8363) is fixedly installed on the outer surface of the third slide rod (8362). A receiving cavity (8364) is opened in the inner cavity of the detection block (831). The second fixing ring (8363) is located in the middle of the receiving cavity (8364). A fourth spring is sleeved on the outer surface of the third slide rod (8362). 8365), and a third slide rod (8362) has two fourth springs (8365), which are located on both sides of the second fixed ring (8363). The two ends of the detection block (831) are fixedly installed with floating rods (8366). The outer surface of the floating rod (8366) is sleeved with a fifth spring (8367). The two ends of the connecting frame (8361) are provided with second sliding grooves (8368). The floating rod (8366) and the second sliding groove (8368) are slidably connected. There is a gap between the detection block (831) and the connecting frame (8361). The adjusting mechanism (837) includes a third threaded rod (8371), with second sliders (8372) sleeved at both ends of the third threaded rod (8371). The third threaded rod (8371) and the connecting frame (8361) are rotatably connected. The second slider (8372) and the third threaded rod (8371) are connected by threads, and the threads at both ends of the third threaded rod (8371) are in opposite directions. A storage block (8373) is slidably connected to the outer surface of the second slider (8372). Connection holes (8374) are provided at both ends of the storage block (8373). The fifth spring (8367) is located between the detection block (831) and the storage block (8373). The connection hole (8374) and the floating rod (8366) are slidably connected. The alarm mechanism (838) includes a first connecting strip (8381), and buttons (8382) are provided on the upper, lower, left and right outer surfaces of the first connecting strip (8381). The first connecting strip (8381) and the detection block (831) are fixedly connected. A second connecting strip (8383) is fixedly installed on the outer surface of the connecting frame (8361). A connecting ring (8384) is fixedly installed at one end of the second connecting strip (8383). The first connecting strip (8381) is located in the middle part of the connecting ring (8384). An adjusting bolt (8385) is connected to the inner cavity of the connecting ring (8384) by a threaded rotation. There are four adjusting bolts (8385), and the buttons (8382) and the adjusting bolts (8385) are aligned. The buttons (8382) and the alarm (839) are electrically connected. Pressing the buttons (8382) controls the alarm (839) to sound an alarm. The clamping assembly (2) includes a clamping frame (21), the inner cavity of the clamping frame (21) is rotatably connected to a first threaded rod (22), the outer surface of the first threaded rod (22) is sleeved with a flexible adjustment mechanism (23), the outer surface of the flexible adjustment mechanism (23) is provided with a clamping block (24), and the lower surface of the clamping frame (21) is provided with a moving mechanism (25).

2. The plastic bottle production apparatus as described in claim 1, characterized in that, The flexible adjustment mechanism (23) includes a slide (231), the inner cavity of which is rotatably connected to a second threaded rod (232), the outer surface of which is sleeved with a first slider (233), the bottom end of which is slidably connected to a first slide rod (234), the outer surface of which is sleeved with a first spring (235), one end of which is fixedly installed with a buffer block (236), the outer surface of which is fixedly installed with a first connecting block (237), the inner cavity of which is slidably connected to a second slide rod (238), and the outer surface of which is sleeved with a second spring (239).

3. The plastic bottle production apparatus as described in claim 2, characterized in that, The first slider (233) and the second threaded rod (232) are connected by threads, and the threads at both ends of the second threaded rod (232) are opposite in direction. The first slider (233) and the slide (231) are slidably connected. The first spring (235) is located between the buffer block (236) and the first slider (233). The second spring (239) is located between the clamping block (24) and the first connecting block (237). The clamping block (24) and the second slide rod (238) are fixedly connected. The outer surface of the clamping block (24) is partially hollowed out, and the hollowed-out parts of adjacent clamping blocks (24) are staggered.

4. The plastic bottle production apparatus as described in claim 1, characterized in that, The moving mechanism (25) includes a moving seat (251), a rotating cylinder (252) is rotatably connected to the outer surface of the moving seat (251), the rotating cylinder (252) is in contact with the side wall of the conveyor belt (4), a first sliding groove (253) is provided on the lower surface of the clamping frame (21), the moving seat (251) and the first sliding groove (253) are slidably connected, an insertion hole (254) is provided on the outer surface of the first sliding groove (253), an insertion rod (255) is slidably connected to the inner cavity of the moving seat (251), a first fixing ring (256) is fixedly installed on the outer surface of the insertion rod (255), a third spring (257) is sleeved on the outer surface of the insertion rod (255), the third spring (257) is located between the first fixing ring (256) and the inner wall of the moving seat (251), and the insertion rod (255) and the insertion hole (254) are inserted into each other.

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