Plastic bottle production device

Abstract

The invention relates to the technical field of blow molding, and particularly discloses a plastic bottle production device which comprises a machining table, a rotating rod is rotationally connected to the inner wall of the machining table, the outer surface of the rotating rod is sleeved with a conveying belt, a clamping assembly is placed on the outer surface of the conveying belt, and a temperature control chamber is fixedly installed on the upper surface of the machining table. According to the bottle preform machining device, adjustment can be conducted through the clamping assemblies according to the sizes of bottle preforms, the bottle preforms of different specifications can be limited, the bottle preforms can be flexibly clamped, meanwhile, the bottle preforms can be kept in the middle all the time in the feeding process, and the machining efficiency is improved. Through the blow molding assembly, it can be guaranteed that molds are always aligned under the condition of long-time use, when the molds incline or are not aligned, an alarm can be given out in time, workers can carry out maintenance in time, and it is guaranteed that the wall thickness of a bottle is uniform during blow molding.

Description

Technical Field

[0001] The present application relates to the field of blow molding technology, and in particular to a plastic bottle production device. Background Art

[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents. Plastic bottles widely use polyester (PET), polyethylene (PE), and polypropylene (PP) as raw materials. After adding corresponding organic solvents, they are heated at high temperatures and blow molded, extruded, or injection molded through plastic molds to form plastic containers. The production technology of plastic bottles is also constantly improving and optimizing. However, the current existing technology still has the following problems:

[0003] 1. In the process of plastic bottle production, the preform needs to be blow molded. The clamping mechanism is required to limit the position of the preform during feeding. The preform needs to be heated and softened first during blow molding. The ordinary clamping mechanism is too rigid, and it is easy to exert too much pressure on the preform when softening the preform at high temperature, causing the preform to deform. If the clamping force is too weak, the preform will be easily unstable and tip over. At the same time, it is difficult to keep the position of the preform in the middle during feeding. The deviation of the preform may cause quality problems such as internal wrinkles.

[0004] 2. Although the existing molds all have limit mechanisms, it is difficult to detect bending in time during use. That is, the molds are prone to offset when pressed together under long-term use, resulting in misalignment between the molds, resulting in uneven wall thickness and irregular shape of the blow-molded bottles, and even breakage. In addition, during the long-term blow molding process, the mold as a whole tilts, and a slight tilt is difficult to detect with the naked eye. Due to product quality problems caused by mold tilt, the scrap rate will increase significantly, which not only increases production costs, but also reduces the overall efficiency of the production line. Summary of the invention

[0005] The present application provides a plastic bottle production device, which solves the problems in the prior art that the clamping mechanism is too rigid and the molds are not aligned, and achieves flexible clamping of the bottle embryo, mold alignment, and the ability to sound an alarm when deviation occurs.

[0006] The present application provides a plastic bottle production device, including a processing table, the inner wall of the processing table is rotatably connected to a rotating rod, the outer surface of the rotating rod is sleeved with a conveyor belt, the outer surface of the conveyor belt is placed with a clamping assembly, the upper surface of the processing table is fixedly installed with a temperature control chamber, the inner cavity of the processing table is slidably connected to a stretching rod, the upper surface of the processing table is fixedly installed with a fixed frame, the inner cavity of the fixed frame is provided with a blow molding assembly, the blow molding assembly includes a first mold, the first mold and the fixed frame are slidably connected, the top and bottom walls of the fixed frame are slidably connected to a second mold, the first mold and the second mold are symmetrically distributed about the stretching rod, and the appearance of the first mold and the second mold A mold detection mechanism is commonly provided on the surface, and a local structure of the mold detection mechanism is fixedly connected to the first mold, and a local structure of the mold detection mechanism is fixedly connected to the second mold. A second connecting block is fixedly installed on the upper surfaces 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. Racks are provided at both ends of the gear, and the racks are meshed with the gears. The second connecting block is fixedly connected to the rack. A limiting frame is fixedly installed on the upper surface of the fixed frame, and the racks are slidably connected to the limiting frame. A cylinder is fixedly installed on the upper surface of the fixed frame, and a piston rod is slidably connected to the inner cavity of the cylinder, and the piston rod is fixedly connected to one of the racks.

[0007] Furthermore, the mold detection mechanism includes a detection block, a fixed block is fixedly installed on the outer surface of the second mold, a horizontal detection mechanism is fixedly installed on the outer surface of the fixed block, a detection rod is fixedly installed on the outer surface of the fixed block away from the horizontal detection mechanism, a limiting hole is provided on the outer surface of the detection block, the detection rod and the limiting hole are inserted into the limit hole, the two side edges of the limiting hole are chamfered, the inner cavity of the detection block is provided with a flexible limiting mechanism, the inner cavity of the flexible limiting mechanism is slidably connected with a distance adjustment mechanism, the outer surface of the detection block is provided with an alarm mechanism, and an alarm is fixedly installed on the outer surface of the detection block.

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

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

[0010] Furthermore, the distance adjusting mechanism includes a third threaded rod, the two ends of the third threaded rod are sleeved with a second slider, the third threaded rod and the connecting frame are rotatably connected, the second slider and the third threaded rod are threadedly connected, and the thread directions at the two ends of the third threaded rod are opposite, the outer surface of the second slider is slidably connected with a storage block, the two ends of the storage block are provided with connecting holes, the fifth spring is located between the detection block and the storage block, and the connecting hole and the floating rod are slidably connected.

[0011] Furthermore, the alarm mechanism includes a first connecting strip, buttons are provided on the upper, lower, left and right outer surfaces of the first connecting strip, 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 on one end of the second connecting strip, the first connecting strip is located in the middle part of the connecting ring, the inner cavity of the connecting ring is connected to an adjusting bolt by threaded rotation, there are four adjusting bolts, and the button is aligned with the adjusting bolt, the button is electrically connected to the alarm, and pressing the button controls the alarm to sound an alarm.

[0012] Furthermore, the clamping assembly includes a clamping frame, the inner cavity of the clamping frame is rotatably connected to a first threaded rod, the outer surface of the first threaded rod is sleeved with a flexible adjustment mechanism, the outer surface of the flexible adjustment mechanism 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, the inner cavity of the slide is rotatably connected to the second threaded rod, the outer surface of the second threaded rod is sleeved with the first slider, the bottom end of the first slider is slidably connected to the first slide rod, the outer surface of the first slide rod is sleeved with the first spring, a buffer block is fixedly installed at one end of the first slide rod, the outer surface of the buffer block is fixedly installed with the first connecting block, the inner cavity of the first connecting block is slidably connected to the second slide rod, and the outer surface of the second slide rod is sleeved with the second spring.

[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 slide are slidably connected. The first spring is located between the buffer block and the first slider, and 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 seat, the outer surface of the moving seat is rotatably connected to a rotating drum, the rotating drum is fitted with the side wall of the conveyor belt, the lower surface of the clamping frame is provided with a first sliding groove, the moving seat and the first sliding groove are slidably connected, the outer surface of the first sliding groove is provided with a socket, the inner cavity of the moving seat is slidably connected to an insertion rod, the outer surface of the insertion rod is fixedly installed with a first fixing ring, the outer surface of the insertion rod is sleeved with a third spring, the third spring is located between the first fixing ring and the inner wall of the moving seat, and the insertion rod is plugged into the socket.

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

[0017] 1. The use of the clamping assembly effectively solves the problem of blow molding the preform in the production process of plastic bottles, and the need for the clamping mechanism to limit the position during the feeding process of the preform. The preform needs to be heated and softened during blow molding. The ordinary clamping mechanism is too rigid, and it is easy to exert too much pressure on the preform when the preform is softened at high temperature, causing the preform to deform. If the clamping force is too weak, the preform will be easily clamped unstable, causing the preform to tip over. At the same time, it is difficult to keep the position of the preform in the middle during the feeding process. The deviation of the preform may cause quality problems such as internal wrinkles. The present invention can adjust according to the size of the preform through the clamping assembly, can limit the position of preforms of different specifications, and can flexibly clamp the preform to prevent the preform from being deformed due to high temperature softening before blow molding or the preform from tipping over due to insufficient clamping force. At the same time, the preform can always be kept in the middle during the feeding process without position deviation.

[0018] 2. The use of the blow molding component effectively solves the problem that although the existing molds all have limiting mechanisms, it is difficult to detect bending in time during use, that is, the molds are prone to offset when pressed together under long-term use, which leads to misalignment between the molds, resulting in uneven wall thickness and irregular shape of the blow-molded bottles, and even breakage. In addition, during the long-term blow molding process, the mold as a whole tilts, and a slight tilt is difficult to detect with the naked eye. Due to product quality problems caused by the tilt of the mold, the scrap rate will increase significantly, which not only increases production costs, but also reduces the overall efficiency of the production line. The present invention can ensure that the molds are always aligned under long-term use through the blow molding component, and can issue an alarm in time when the mold is tilted or misaligned, so that the staff can perform timely maintenance, ensure uniform wall thickness of the bottle during blow molding, avoid producing a large number of unqualified products, reduce production costs, and improve overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 Schematic diagram of the stretching rod structure in the embodiment of the present application;

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

[0022] Figure 4 It is a schematic diagram of the structure of the flexible adjustment mechanism in the embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of the local structure of the slide in the embodiment of the present application;

[0024] Figure 6 For the embodiment of this application Figure 5 A schematic diagram of the structure enlargement at the center A;

[0025] Figure 7 It is a schematic diagram of the structure of the mobile mechanism in the embodiment of the present application;

[0026] Figure 8 For the embodiment of this application Figure 7 A schematic diagram of the structure enlarged at B in the middle;

[0027] Fig. 9 This is a schematic diagram of the blow molding assembly structure in an embodiment of the present application;

[0028] Fig.10 This is a schematic diagram of the structure of the second connection block in an embodiment of the present application;

[0029] Fig.11 This is a schematic diagram of the structure of the mold detection mechanism in the embodiment of the present application;

[0030] Fig.12 This is a schematic diagram of the structure of the level detection mechanism in the embodiment of the present application;

[0031] Fig.13 This is a schematic diagram of the structure of the flexible limiting mechanism in the embodiment of the present application;

[0032] Fig.14 is a schematic cross-sectional view of the detection block structure in an embodiment of the present application;

[0033] Fig.15 Schematic diagram of the distance adjustment mechanism structure in the embodiment of the present application;

[0034] Fig.16 Schematic diagram of the structure of the alarm mechanism in the embodiment of the present application.

[0035] In the figure: 1, processing table; 2, clamping assembly; 21, clamping frame; 22, first threaded rod; 23, flexible adjustment mechanism; 231, slide frame; 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. Rotating 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. Stretching rod; 7. Fixing frame; 8. Blow molding assembly; 81. First mold; 82. Second mold; 83. Mold detection mechanism; 831. Detection block; 832. Fixing block; 833. Horizontal detection mechanism; 8331. Detection frame; 8332, floating block; 8333, pointer; 8334, gravity ball; 8335, roller; 834, detection rod; 835, limit hole; 836, flexible limit mechanism; 8361, connecting frame; 8362, third slide bar; 8363, second fixing ring; 8364, storage chamber; 8365, fourth spring; 8366, floating rod; 8367, fifth spring; 8368, second slide slot; 837, distance adjustment machine Structure; 8371, third threaded rod; 8372, second slider; 8373, storage block; 8374, connecting hole; 838, alarm mechanism; 8381, first connecting strip; 8382, button; 8383, second connecting strip; 8384, connecting ring; 8385, adjusting bolt; 839, alarm; 84, second connecting block; 85, gear; 86, rack; 87, limit frame; 88, cylinder; 89, piston rod. DETAILED DESCRIPTION

[0036] For the clamping mechanism being too rigid, the clamping assembly of the present invention can be adjusted according to the size of the bottle embryo, can limit the bottle embryos of different specifications, and can flexibly clamp the bottle embryos; for the molds being prone to displacement during long-term use, the blow molding assembly of the present invention can ensure that the molds are always aligned during long-term use, and can promptly issue an alarm when the molds are tilted or misaligned.

[0037] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] See also Figure 1 and Figure 2As shown, a plastic bottle production device includes a processing table 1, 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 component 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 stretching rod 6, the upper surface of the processing table 1 is fixedly installed with a fixing frame 7, the inner cavity of the fixing frame 7 is provided with a blow molding component 8, the conveyor belt 4 is driven by the rotation of the rotating rod 3, wherein the rotating rod 3 can be on the processing table 1 The inner cavity is provided with a motor to drive the rotating rod 3 to rotate, so that the clamping assembly 2 is fed on the conveyor belt 4. The clamping assembly 2 is used to load the blow-molded bottle embryo. The bottle embryo is upside down on the clamping assembly 2, and the bottle mouth is located in the middle part of the clamping assembly 2. The temperature control chamber 5 is used to heat the bottle embryo to soften the bottle embryo for subsequent blow molding. The stretching rod 6 is used to stretch the bottle embryo so that the bottle embryo is blown in the inner cavity of the blow molding assembly 8. The bottle embryo is blown up by high-pressure air and stretched into the shape of the mold cavity. It can be cooled after blow molding.

[0039] See also Figure 3 As shown, 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, which can drive the flexible adjustment mechanism 23 to move on the clamping frame 21 by rotating the first threaded rod 22, so as to adjust the clamping specifications of the clamping block 24 according to the size of the bottle embryo, and the clamping block 24 is used to fix the bottle mouth of the bottle embryo, and the moving mechanism 25 is used to be clamped on the conveyor belt 4, so that the clamping assembly 2 as a whole is located in the middle part of the processing table 1 and moves.

[0040] See also Figure 4 , Figure 5 and Figure 6As shown, the flexible adjustment mechanism 23 includes a slide 231, the inner cavity of the slide 231 is rotatably connected to the second threaded rod 232, the outer surface of the second threaded rod 232 is sleeved with a first slider 233, the bottom end of the first slider 233 is slidably connected to a first slide bar 234, the outer surface of the first slide bar 234 is sleeved with a first spring 235, one end of the first slide bar 234 is fixedly installed with a buffer block 236, the outer surface of the buffer block 236 is fixedly installed with a first connecting block 237, the inner cavity of the first connecting block 237 is slidably connected to a second slide bar 238, the outer surface of the second slide bar 238 is sleeved with a second The spring 239, 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 in opposite directions. 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, so that the clamping blocks 24 are close to each other, the fault tolerance of clamping is increased, and the rotation of the first threaded rod 22 The movement of the first threaded rod 232 can change the spacing between the two flexible adjustment mechanisms 23. At this time, the first slider 233 is made to slide in the inner cavity of the slide 231 by rotating the second threaded rod 232. The sliding of the first slider 233 drives the first slide bar 234 to move. The movement of the first slide bar 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 bar 238 to move. The movement of the second slide bar 238 drives the clamping block 24 to move, so that the clamping blocks 24 can move closer to or farther from each other, so that the clamping block 24 can clamp different specifications. The bottle embryo, at the same time, the clamping force of the clamping block 24 has a certain flexibility. After the spacing of the clamping block 24 is adjusted according to the performance of the bottle embryo, the clamping force of the clamping block 24 will not cause damage to the bottle embryo due to excessive force, nor will the bottle embryo be unstable due to too small clamping force. When the clamping block 24 is subjected to increased force, it drives the second sliding rod 238 to slide in the inner cavity of the first connecting block 237. At this time, the second spring 239 is compressed, and at the same time, the first sliding rod 234 slides in the inner cavity of the first sliding block 233. At this time, the first spring 235 is compressed, ensuring that the clamping block 24 has a flexible clamping effect to prevent damage to the bottle embryo.

[0041] See also Figure 7 and Figure 8As shown, the moving mechanism 25 includes a moving seat 251, the outer surface of the moving seat 251 is rotatably connected with a rotating drum 252, the rotating drum 252 is fitted with the side wall of the conveyor belt 4, the lower surface of the clamping frame 21 is provided with a first slide groove 253, the moving seat 251 and the first slide groove 253 are slidably connected, the outer surface of the first slide groove 253 is provided with a socket 254, the inner cavity of the moving seat 251 is slidably connected with an insertion rod 255, the outer surface of the insertion rod 255 is fixedly installed with a first fixing ring 256, the outer surface of the insertion rod 255 is sleeved with a third spring 257, the third spring 257 is located between the first fixing ring 256 and the inner wall of the moving seat 251, the insertion rod 255 and the socket 254 are plugged together, and the rotating drum 252 can be easily adjusted by adjusting the position of the moving seat 251. The rotating drum 252 rotates in the inner cavity of the moving seat 251, so that when the conveyor belt 4 transports the clamping assembly 2, the rotating drum 252 contacts the side of the conveyor belt 4, reducing the friction between the clamping assembly 2 as a whole and the conveyor belt 4, thereby making the clamping assembly 2 more stable.

[0042] See also Fig. 9 and Fig.10As shown, the blow molding assembly 8 includes a first mold 81, the first mold 81 is slidably connected to a fixed frame 7, the top and bottom walls of the fixed frame 7 are slidably connected to a second mold 82, the first mold 81 and the second mold 82 are symmetrically distributed about the stretching rod 6, the outer surfaces of the first mold 81 and the second mold 82 are jointly provided with a mold detection mechanism 83, the mold detection mechanism 83 is used to detect whether the positions of the first mold 81 and the second mold 82 remain stable, and the local structure of the mold detection mechanism 83 is fixedly connected to the first mold 81, the local 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 fixedly installed with a second connecting block 84, the middle part of the upper surface of the fixed frame 7 is rotatably connected with a gear 85, the two ends of the gear 85 are provided with racks 86, the rack 86 is meshed with the gear 85, the second connecting block 84 is fixedly connected to the rack 86, the upper surface of the fixed frame 7 is fixedly installed with a limiting frame 87, the rack 86 and The limiting frame 87 is slidably connected, and a cylinder 88 is fixedly installed on the upper surface of the fixing frame 7. The inner cavity of the cylinder 88 is slidably connected with a piston rod 89. The piston rod 89 is fixedly connected to one of the racks 86. 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, so that the rack 86 drives the two second connecting blocks 84 to move. The movement of the second connecting block 84 drives the first mold 81 and the second mold 82 to approach each other. At this time, the stretching rod 6 passes through the bottom of the clamping assembly 2 to gradually blow up the preform. The clamping assembly 2 always clamps and limits the bottle mouth of the preform, so that the preform is closely fitted with the inner cavity of the first mold 81 and the second mold 82. When the blowing is completed, the cylinder 88 drives the first mold 81 and the second mold 82 to separate again, and the blow molding of the preform is completed.

[0043] See also Fig.10 , Fig.11 and Fig.13As shown, the mold detection mechanism 83 includes a detection block 831, a fixed 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 fixed block 832, a detection rod 834 is fixedly installed on the outer surface of the fixed block 832 away from the horizontal detection mechanism 833, a limiting hole 835 is provided on the outer surface of the detection block 831, the detection rod 834 and the limiting hole 835 are inserted, and the edges of both sides of the limiting hole 835 are chamfered, and the inner cavity of the detection block 831 is provided with a flexible limiting mechanism 836, and the inner cavity of the flexible limiting mechanism 836 is slidably connected with a distance adjustment mechanism 837, and the distance adjustment mechanism 837 is used to adjust the tightness of the detection block 831. 1 is provided with an alarm mechanism 838, 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 to each other, the detection block 831 and the fixed block 832 are driven to approach each other. At this time, the detection rod 834 and the limiting hole 835 are plugged together. When the positions of the first mold 81 and the second mold 82 are offset, the detection rod 834 will contact the chamfered corners of the side of the limiting hole 835, so that the detection block 831 shakes in the inner cavity of the flexible limiting mechanism 836, driving 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 vertical, so as to ensure that the preform is evenly stressed during blow molding.

[0044] See also Fig.11 and Fig.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, the inner cavity of the detection frame 8331 is slidably connected with a floating block 8332, the outer surface of the floating block 8332 is fixedly connected with a pointer 8333, the bottom end of the floating block 8332 is suspended with a gravity ball 8334, the two ends of the floating block 8332 are rotatably connected with rollers 8335, the rollers 8335 are in contact with the inner cavity of the detection frame 8331, when the second mold 82 is tilted, it drives the fixed block 832 to tilt, the fixed block 832 tilts and drives the detection frame 8331 to tilt, the detection frame 8331 tilts and drives the floating block 8332 to slide in the inner cavity of the detection frame 8331, at this time the rollers 8335 rotates in the inner cavity of the detection frame 8331, the pointer 8333 can be used to observe the offset position of the floating block 8332 on the detection frame 8331, and the gravity ball 8334 is used to keep the floating block 8332 located in the middle part of the detection frame 8331 when the detection frame 8331 is horizontal. By observing whether the pointer 8333 is offset on the detection frame 8331, it can be judged whether the second mold 82 is tilted. At the same time, when the first mold 81 is tilted and the second mold 82 is normal, it is difficult for the detection rod 834 and the limit hole 835 to be accurately inserted, so that it can be judged whether the first mold 81 and the second mold 82 are tilted during use, so that the plastic bottle blown by the bottle embryo is evenly stressed.

[0045] See also Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, the flexible limiting mechanism 836 includes a connecting frame 8361, the connecting frame 8361 is fixedly connected to the first mold 81, the inner cavity of the connecting frame 8361 is slidably connected to the third sliding rod 8362, the outer surface of the third sliding rod 8362 is fixedly installed with a second fixing ring 8363, the inner cavity of the detection block 831 is provided with a storage cavity 8364, the second fixing ring 8363 is located in the middle of the storage cavity 8364, the outer surface of the third sliding rod 8362 is sleeved with a fourth spring 8365, and one third sliding rod 8362 has two fourth springs 8365, which are respectively located on both sides of the second fixing ring 8363, floating rods 8366 are fixedly installed at both ends of the detection block 831, and the outer surface of the floating rod 8366 is sleeved with a fifth spring 8367, and the connecting frame 8361 is provided with a plurality of springs 8367. A second slide groove 8368 is provided at both ends of 361, and the floating rod 8366 is slidably connected to the second slide groove 8368. There is a gap between the detection block 831 and the connecting frame 8361. The distance adjustment mechanism 837 includes a third threaded rod 8371. The second slider 8372 is 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. The outer surface of the second slider 8372 is slidably connected to a storage block 8373. The storage block 8373 has connecting holes 8374 at both ends. The fifth spring 8367 is located between the detection block 831 and the storage block 8373. The connecting hole 837 4 is slidably connected to the floating rod 8366, the alarm mechanism 838 includes a first connecting strip 8381, the upper and lower left and right outer surfaces of the first connecting strip 8381 are each provided with a button 8382, the first connecting strip 8381 is fixedly connected to the detection block 831, the outer surface of the connecting frame 8361 is fixedly mounted with a second connecting strip 8383, one end of the second connecting strip 8383 is fixedly mounted with a connecting ring 8384, the first connecting strip 8381 is located in the middle of the connecting ring 8384, the inner cavity of the connecting ring 8384 is connected with an adjusting bolt 8385 by threaded rotation, there are four adjusting bolts 8385, and the button 8382 is aligned with the adjusting bolt 8385, the button 8382 is electrically connected to the alarm 839, and pressing the button 8382 controls the alarm 839 An alarm is sounded. When the first mold 81 and the second mold 82 cannot be completely matched, the detection rod 834 squeezes the chamfer of the limit hole 835, and at this time, an extrusion force is generated on the detection block 831, thereby driving the detection block 831 to move. The movement of the detection block 831 drives the first connecting strip 8381 to move. The movement of the first connecting strip 8381 drives the movement of the button 8382. The movement of the button 8382 drives the button 8382 to contact the adjusting bolt 8385. At this time, the adjusting bolt 8385 squeezes the button 8382. The squeezing of the button 8382 causes the alarm 839 to sound an alarm, reminding the staff that the positions of the first mold 81 and the second mold 82 are offset, and the equipment needs to be maintained to prevent the batch production of unqualified plastic bottles.The flexible limiting mechanism 836 is used to flexibly fix the detection block 831, that is, the elastic force of the adjusting bolt 8385 is used to make the second fixing ring 8363 in the middle position of the inner cavity of the storage cavity 8364, so that the detection block 831 can move along the direction of the third sliding rod 8362 when subjected to force, and the third sliding rod 8362 slides in the inner cavity of the connecting frame 8361. When the connecting frame 8361 receives the extrusion force in the direction of the floating rod 8366, the detection block 831 drives the floating rod 8366 to squeeze the fifth spring 8367. At this time, the detection block 831 can move in the direction of the floating rod 8366, and the floating rod 8366 slides on the second sliding groove 8368 to prevent the floating rod 8366 from limiting the detection block 831. When the detection block 831 is displaced, it will drive the button 8382 and the adjusting bolt 8385 to contact, thereby timely issuing an alarm to remind the workstation personnel to maintain the equipment. At the same time, the detection block 831 can be moved by rotating the adjusting bolt 8385. The bolt 8385 changes the distance between the adjustment bolt 8385 and the button 8382. By controlling the distance, the first mold 81 and the second mold 82 are controlled to reach the distance, and an alarm is issued. By rotating the third threaded rod 8371, the second slider 8372 is driven to slide in the inner cavity of the connecting frame 8361, so that the elastic force of the fifth spring 8367 is changed to prevent the fifth spring 8367 from being insufficient in elastic force under long-term use, and increase the fault tolerance of the fifth spring 8367. The storage block 8373 and the second slider 8372 are slidably connected to prevent the detection block 831 from being limited when the storage block 8373 and the floating rod 8366 are sleeved. That is, by whether the detection rod 834 is inserted into the limiting hole 835, it can be judged whether the first mold 81 and the second mold 82 are completely matched, and the displacement of the protective mold during pressing causes the molds to be misaligned, so as to avoid uneven wall thickness and irregular shape of the blow-molded bottles, improve the yield rate, and reduce production costs.

[0046] In summary, the conveyor belt 4 is driven by the rotation of the rotating rod 3, wherein the rotating rod 3 can be provided with a motor in the inner cavity of the processing table 1 to drive the rotating rod 3 to rotate, so that the clamping assembly 2 is fed on the conveyor belt 4, and the clamping assembly 2 is used to load the blow-molded bottle preform, the bottle preform is upside down on the clamping assembly 2, and the bottle mouth is located in the middle part of the clamping assembly 2, the temperature control chamber 5 is used to heat the bottle preform to soften the bottle preform for subsequent blow molding, the stretching rod 6 is used to stretch the bottle preform to blow mold the bottle preform in the inner cavity of the blow molding assembly 8, and the first threaded rod 22 is rotated to drive the flexible adjustment mechanism 23 to move on the clamping frame 21, so as to facilitate the adjustment of the bottle preform according to the bottle preform. The clamping specification of the clamping block 24 is adjusted according to the size of the clamping block 24, the clamping block 24 is used to fix the bottle mouth of the preform, and the moving mechanism 25 is used to be inserted into the conveyor belt 4 for convenience, so that the clamping assembly 2 as a whole is located in the middle part of the processing table 1 and moves. The operation of the cylinder 88 drives the first mold 81 and the second mold 82 to approach each other. At this time, the stretching rod 6 passes through the bottom of the clamping assembly 2 to gradually blow up the bottle preform. The clamping assembly 2 always clamps the bottle mouth of the preform to limit the position, so that the bottle preform is closely fitted with the inner cavity of the first mold 81 and the second mold 82. When the blowing is completed, the cylinder 88 drives the first mold 81 and the second mold 82 to separate again, and the blow molding of the bottle preform is completed.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0048] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A plastic bottle production device, 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 provided 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 stretching 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) comprises a first mold (81), the first mold (81) is slidably connected to a fixed frame (7), the top and bottom walls of the fixed frame (7) are slidably connected to a second mold (82), the first mold (81) and the second mold (82) are symmetrically distributed about a stretching rod (6), the outer surfaces of the first mold (81) and the second mold (82) are jointly provided with a mold detection mechanism (83), and a local structure of the mold detection mechanism (83) is fixedly connected to the first mold (81), and a local structure of the mold detection mechanism (83) is fixedly connected to the second mold (82), and the upper surfaces of the first mold (81) and the second mold (82) are fixedly connected. 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), racks (86) are arranged at both ends of the gear (85), the racks (86) and the gears (85) are meshed, the second connecting block (84) and the racks (86) are fixedly connected, a limiting frame (87) is fixedly installed on the upper surface of the fixed frame (7), the racks (86) and the limiting frame (87) are slidably connected, a cylinder (88) is fixedly installed on the upper surface of the fixed frame (7), the inner cavity of the cylinder (88) is slidably connected to a piston rod (89), and the piston rod (89) is fixedly connected to one of the racks (86).

2. A plastic bottle production device as claimed in claim 1, characterized in that: The mold detection mechanism (83) comprises a detection block (831); a fixed block (832) is fixedly mounted on the outer surface of the second mold (82); a horizontal detection mechanism (833) is fixedly mounted on the outer surface of the fixed block (832); a detection rod (834) is fixedly mounted on the outer surface of the fixed block (832) away from the horizontal detection mechanism (833); a limiting hole (835) is provided on the outer surface of the detection block (831); the detection rod (834) and the limiting hole (835) are plugged together; the edges on both sides of the limiting hole (835) are chamfered; a flexible limiting mechanism (836) is provided in the inner cavity of the detection block (831); a distance adjustment mechanism (837) is slidably connected to the inner cavity of the flexible limiting mechanism (836); an alarm mechanism (838) is provided on the outer surface of the detection block (831); and an alarm (839) is fixedly mounted on the outer surface of the detection block (831).

3. A plastic bottle production device as claimed in claim 2, characterized in that: The horizontal detection mechanism (833) comprises a detection frame (8331), wherein the detection frame (8331) is fixedly connected to the outer surface of the fixed block (832), the inner cavity of the detection frame (8331) is slidably connected to a floating block (8332), the outer surface of the floating block (8332) is fixedly connected to a pointer (8333), a gravity ball (8334) is suspended at the bottom end of the floating block (8332), and rollers (8335) are rotatably connected at both ends of the floating block (8332), and the rollers (8335) are in contact with the inner cavity of the detection frame (8331).

4. A plastic bottle production device as claimed in claim 2, characterized in that: The flexible limiting mechanism (836) includes a connecting frame (8361), the connecting frame (8361) is fixedly connected to the first mold (81), the inner cavity of the connecting frame (8361) is slidably connected to a third sliding rod (8362), the outer surface of the third sliding rod (8362) is fixedly installed with a second fixing ring (8363), the inner cavity of the detection block (831) is provided with a storage cavity (8364), the second fixing ring (8363) is located in the middle of the storage cavity (8364), and the outer surface of the third sliding rod (8362) is sleeved with a fourth spring (8364). 8365), and a third sliding rod (8362) has two fourth springs (8365), which are respectively located on both sides of the second fixed ring (8363), floating rods (8366) are fixedly installed at both ends of the detection block (831), and the outer surface of the floating rod (8366) is sleeved with a fifth spring (8367), and second sliding grooves (8368) are opened at both ends of the connecting frame (8361), the floating rod (8366) and the second sliding groove (8368) are slidably connected, and there is a gap between the detection block (831) and the connecting frame (8361).

5. A plastic bottle production device as claimed in claim 4, characterized in that: The distance adjustment mechanism (837) includes a third threaded rod (8371), and the two ends of the third threaded rod (8371) are sleeved with a second slider (8372), 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 the two ends of the third threaded rod (8371) are in opposite directions, the outer surface of the second slider (8372) is slidably connected with a storage block (8373), and the two ends of the storage block (8373) are provided with connecting holes (8374), the fifth spring (8367) is located between the detection block (831) and the storage block (8373), and the connecting hole (8374) and the floating rod (8366) are slidably connected.

6. A plastic bottle production device as claimed in claim 5, characterized in that: 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), and a connecting ring (8384) is fixedly installed on one end of the second connecting strip (8383). The first connecting strip (8381) is located in the middle part of the connecting ring (8384). The inner cavity of the connecting ring (8384) is connected to an adjusting bolt (8385) by 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, and pressing the buttons (8382) controls the alarm (839) to sound an alarm.

7. A plastic bottle production device as claimed in claim 1, characterized in that: The clamping assembly (2) comprises 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).

8. A plastic bottle production device as claimed in claim 7, characterized in that: The flexible adjustment mechanism (23) comprises a slide (231), the inner cavity of the slide (231) is rotatably connected to a second threaded rod (232), the outer surface of the second threaded rod (232) is sleeved with a first slider (233), the bottom end of the first slider (233) is slidably connected to a first slide bar (234), the outer surface of the first slide bar (234) is sleeved with a first spring (235), a buffer block (236) is fixedly installed at one end of the first slide bar (234), the outer surface of the buffer block (236) is fixedly installed with a first connecting block (237), the inner cavity of the first connecting block (237) is slidably connected to a second slide bar (238), and the outer surface of the second slide bar (238) is sleeved with a second spring (239).

9. A plastic bottle production device as claimed in claim 8, characterized in that: The first slider (233) and the second threaded rod (232) are connected by threads, and the threads at two ends of the second threaded rod (232) are in opposite directions. The first slider (233) and the slide frame (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.

10. A plastic bottle production device as claimed in claim 7, characterized in that: The moving mechanism (25) comprises a moving seat (251), the outer surface of the moving seat (251) is rotatably connected with a rotating drum (252), the rotating drum (252) and the side wall of the conveyor belt (4) are in contact with each other, the lower surface of the clamping frame (21) is provided with a first sliding groove (253), the moving seat (251) and the first sliding groove (253) are slidably connected, the outer surface of the first sliding groove (253) is provided with a socket (254), the inner cavity of the moving seat (251) is slidably connected with an insertion rod (255), the outer surface of the insertion rod (255) is fixedly installed with a first fixing ring (256), the outer surface of the insertion rod (255) is sleeved with a third spring (257), 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 socket (254) are plugged in.

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