Bottle blowing equipment

Abstract

The invention provides bottle blowing equipment, and relates to the technical field of plastic molding, the bottle blowing equipment comprises a mold mechanism, the mold mechanism comprises five modules, the spacing distance between the modules is adjustable, a plurality of half mold bins are arranged on the adjacent side faces of the modules in an array mode, and half bottle necks are formed in the upper ends of the half mold bins; the bottle placing mechanism comprises four rows of bottle placing pipes which are located above the first mold block and arrayed in the width direction of the first mold block and multiple columns of bottle placing pipes arrayed in the length direction of the first mold block, and the bottle placing pipes are movably arranged in the length direction; and the inflation mechanism comprises inflation pipes matched with the bottle placing pipes in number, the inflation pipes are arranged on the same sides of the bottle placing pipes in parallel at intervals in a one-to-one correspondence mode in the length direction, are fixed at intervals and are matched with one another, the inflation pipes are movably arranged in the axial direction of the inflation pipes, and the lower ends of the inflation pipes are connected with matching heads used for being matched with the upper ends of the bottle blanks. The bottle blowing efficiency and the bottle blowing quality can be improved, the maintenance difficulty of the mold driving structure is reduced, the occupied area is small, and high practicability is achieved.

Description

Technical Field

[0001] This application relates to the field of plastic molding, particularly to blow molding technology, and specifically to a blow molding device. Background Art

[0002] Blow molding is a plastic processing technology used to manufacture hollow plastic products such as plastic bottles, plastic containers, and other packaging materials. It involves placing a heated and softened preform into a mold and then injecting compressed air into it, causing the plastic to expand and conform to the inner wall of the mold, and finally cooling and solidifying into the desired shape. In current highly automated edible oil production lines, preforms generally enter the blow molding machine in a row, and the blow molding machine is equipped with a row of compressed air injection mechanisms for blow molding the preforms in sequence, that is, only one row of preforms can be processed each time, resulting in low efficiency. Secondly, when multiple rows of compressed air injection mechanisms are set to blow multiple rows of preforms simultaneously, in order to meet the stroke of multiple rows of molds in the blow molding machine, it is easy to cause the problem of a large floor area of the blow molding machine, and each row of molds requires a separate drive structure to drive, with a relatively complex internal structure and troublesome maintenance of the drive structure. Thirdly, in conventional production lines, there is a long time interval between the transfer of preforms from the heating process to the blow molding machine by the transfer mechanism, and the temperature of the preforms is likely to decrease during the transfer process, affecting the blow molding quality. Summary of the Invention

[0003] To address the above-mentioned defects in the related prior art, this application provides a blow molding device that can improve blow molding efficiency and quality, reduce the maintenance difficulty of the mold drive structure, and has a small floor area, with strong practicability.

[0004] To achieve the above object, the present invention adopts the following technologies: A blow molding device, comprising: A mold mechanism, including five modules arranged in parallel and at intervals, the interval distance between each module is adjustable. The module in the middle is the first mold block, the modules adjacent to both sides of the first mold block are the second mold blocks, and the two outermost modules are the third mold blocks. Multiple semi-mold bins with matching quantities and positions are arrayed on both side surfaces of the second mold block and on the side surfaces of the first mold block and the third mold block adjacent to the second mold block, and semi-neck openings penetrating the top surface of the module are provided at their upper ends; A bottle placing mechanism, including four rows of bottle placing tubes arrayed along the width direction of the first mold block and multiple columns arrayed along the length direction of the first mold block above the first mold block. The number and spacing of the bottle placing tubes in the column direction match the semi-mold bins. The axes of the middle two rows of bottle placing tubes are coplanar with the two side surfaces of the first mold block respectively, and the bottle placing tubes are all movably arranged along the length direction; The inflation mechanism includes an inflation tube whose number matches the bottle placing tube. The inflation tubes are arranged in parallel and at intervals on the same side of the bottle placing tube along the length direction in a one-to-one correspondence with each other and have fixed intervals and match each other. The inflation tubes are all arranged to move along their own axial direction. The lower ends of the inflation tubes are connected with matching heads for matching with the upper ends of the bottle blanks.

[0005] Furthermore, both ends of the first mold block are provided with mounting protrusions, which are respectively fixedly mounted on two sliding rods arranged parallel to the width direction, both ends of the second mold block are provided with first sliding protrusions, which are respectively slidably mounted on the two sliding rods, and both ends of the third mold block are provided with second sliding protrusions, which are respectively slidably mounted on the two sliding rods, and first springs are connected between adjacent mounting protrusions and first sliding protrusions, and between adjacent first sliding protrusions and second sliding protrusions, and the first springs are coaxially mounted on the circumferential side of the sliding rod. When the first spring is in its original state, the third mold block is spaced from the first mold block and the second mold block by a first predetermined distance.

[0006] Furthermore, the mounting protrusions are all connected to mounting columns, the mounting columns are all connected to mounting horizontal bars, both ends of the mounting horizontal bars are connected to mounting vertical bars, the mounting vertical bars connected to a mounting horizontal bar are respectively connected to both ends of a sliding rod, one of the mounting horizontal bars is provided with two first linear cylinders with opposite driving directions and parallel to the length direction, one end of the third mold block is provided with a driving protrusion, and the driving shafts of the first linear cylinders are respectively connected to the driving protrusions.

[0007] Furthermore, four groups of columnar bins are provided on the upper surfaces of the second mold block and the third mold block. The columnar bins in the same group are coaxially arranged in an array along the length direction, and the number and spacing of the arrays are matched with those of the half mold bins. The columnar bins are movably arranged along the width direction. A pair of movable disks are coaxially arranged in the columnar bins. The edges of the movable disks are in sliding contact with the inner walls of the columnar bins and their contact surfaces are airtight. Abutments are coaxially provided on opposite sides of the pair of movable disks. Rod extension openings are coaxially passed through the two ends of the columnar bins. Active rods are coaxially connected to the opposite sides of the pair of movable disks. The active rods are respectively passed through the corresponding rod extension openings. A third spring is connected between the opposite sides of the pair of movable disks and the two ends of the columnar bins. The third spring is coaxially The shaft is arranged on the peripheral side of the active rod, the third spring is always in a compressed state, the end of the active rod extending out of the extension rod mouth is connected with a folding rod, the folding rod is connected with a driven bar, the driven bar matching a pair of movable disks is coaxially arranged along the length direction, the opposite end thereof is connected with a semi-arc bar and the connection point is located in the middle of the semi-arc bar, the central axis of the semi-arc bar is parallel to the height direction of the first mold block, the semi-arc bar and the upper surface of the first mold block are spaced apart by a second predetermined distance, the middle part of the columnar bin is connected with a first connecting pipe, the first connecting pipe of the columnar bin in the same group is connected with the same second connecting pipe, the second connecting pipe is connected with a first ventilation hose, and the first ventilation hose is used to connect with an external gas delivery device.

[0008] Furthermore, a group of guide rods are provided on the upper surfaces of the second mold block and the third mold block along the width direction, a sliding plate is slidably sleeved on each group of guide rods, a second spring is coaxially sleeved on the circumferential side of the guide rod, both ends of the second spring are respectively connected to the end of the guide rod facing away from the first mold block and the sliding plate, when the second spring is in an original state, the sliding plate and the end of the guide rod on which it is located facing the first mold block are spaced apart by a third predetermined distance, each group of columnar bins is correspondingly arranged on the sliding plate, and a limiting arc ring is coaxially provided on the circumferential side of the semi-neck opening of the upper surface of the first mold block and the second mold block facing away from the first mold block.

[0009] Furthermore, the inner walls of the cylindrical bin are provided with limiting convex strips along their own axis, and the edges of the movable disk are provided with limiting grooves parallel to their own axis. The limiting grooves pass through the movable disk, and the limiting grooves are slidably matched with the corresponding limiting convex strips, and their matching surfaces are airtight.

[0010] Furthermore, movable plates are arranged parallel and at intervals above the upper surface of the first mold block, the upper end of the bottle placing tube is connected to the movable plate and connected to the upper surface of the movable plate, a first ring plate is vertically connected to the circumferential side of the upper surface of the movable plate, both sides of the first ring plate are connected to matching strips, the matching strips are slidably matched with two matching rods parallel to the length direction, and fixed strips are arranged on the other two sides of the first ring plate, two fixed strips are connected at both ends of the matching rods, one of the fixed strips is connected to a first support column, the first support columns are connected to another mounting horizontal bar, the other fixed strip is connected to a second support column, the second support columns are connected to the mounting plate, one of the fixed strips is provided with a second linear cylinder with a driving direction parallel to the length direction, and the driving shaft of the second linear cylinder is connected to the first ring plate.

[0011] Furthermore, a first mounting frame is provided under the movable plate, and the first mounting frame is provided with ventilation valves whose number matches that of the inflation pipes, the upper ends of the inflation pipes are connected one-to-one with the output ends of the ventilation valves, and the input ends of the ventilation valves are connected with the second ventilation hoses, and the lower end of one of the fixed strips is connected with a cable tray, and the second ventilation hoses are all passed through the cable tray, and the second ventilation hoses are used to connect with the external compressed air delivery mechanism, and a third linear cylinder is vertically provided on the movable plate, and the driving shaft of the third linear cylinder is connected to the first mounting frame.

[0012] Furthermore, fixed plates are arranged in parallel at intervals above the upper surface of the movable plate, and heating tubes whose number matches the bottle placing tubes are vertically connected to the lower surface of the fixed plate. The upper ends of the heating tubes are connected to the upper surface of the fixed plate, and the heating tubes and the bottle placing tubes are arranged in the same array, and the two rows of heating tubes in the middle section of the array along the width direction are coaxial with the half-bottle neck of the first mold block in a one-to-one correspondence. The inner walls of the heating tubes are provided with heating grooves, and the heating grooves are provided with heating components for heating. A second ring plate is vertically connected to the circumferential side of the lower surface of the fixed plate, and the fixed bars are connected to two third support columns, and the third support columns are connected to the second ring plate.

[0013] Furthermore, above the fixed plate, there are also bottle feeding pipes whose quantity matches that of the bottle placing pipes. The bottle feeding pipes and the gas charging pipes are coaxially arranged in one-to-one correspondence. The bottle feeding pipes are installed on the second mounting rack. Two fourth support columns are connected to each of the fitting strips, and the fourth support columns are all connected to the second mounting rack.

[0014] The beneficial effects of the present invention are as follows: 1. By providing the first die block, the second die block, and the third die block, the blow molding work can be carried out on multiple rows of preforms simultaneously, improving the blow molding efficiency.

[0015] 2. Semi die storage bins are provided on both sides of the first die block and the second die block, reducing the floor area of the blow molding equipment.

[0016] 3. By providing the first spring, only the third die block needs to be driven during blow molding, reducing the maintenance difficulty of the die driving structure.

[0017] 4. By providing the heating pipes, the temperature lost by the preforms during the transfer process is compensated, improving the blow molding quality. Description of the Drawings

[0018] Figure 1 is a three-dimensional schematic diagram of the blow molding equipment according to the embodiment of the present application.

[0019] Figure 2 is a three-dimensional schematic diagram of the first die block, the second die block, and the third die block according to the embodiment of the present application.

[0020] Figure 3 is a three-dimensional schematic diagram of the cylindrical bin and its affiliated mechanisms according to the embodiment of the present application.

[0021] Figure 4 is a cross-sectional view of the cylindrical bin according to the embodiment of the present application.

[0022] Figure 5 is a three-dimensional schematic diagram of the moving plate according to the embodiment of the present application.

[0023] Figure 6 is an exploded structural schematic diagram of the moving plate, the air vent valve, the wire spool, and the first mounting rack according to the embodiment of the present application.

[0024] Figure 7 is a partial cross-sectional three-dimensional schematic diagram of the bottle feeding pipe, the heating pipe, and the fixed plate according to the embodiment of the present application.

[0025] Markings in the figure: 1 - First mold block, 11 - Second mold block, 12 - Third mold block, 13 - Half mold bin, 14 - Half bottleneck, 15 - Mounting bump, 16 - Slide bar, 17 - First sliding bump, 18 - Second sliding bump, 19 - First spring, 110 - Mounting post, 111 - Mounting cross bar, 112 - Mounting vertical bar, 113 - First linear cylinder, 114 - Driving bump, 2 - Bottle placing pipe, 21 - Moving plate, 22 - First ring plate, 23 - Fitting bar, 24 - Fitting rod, 25 - Fixed bar, 26 - First support post, 27 - Second support post, 28 - Second linear cylinder, 29 - Fixed plate, 210 - Heating pipe, 211 - Heating groove, 212 - Second ring plate, 213 - Third support post, 214 - Bottle feeding pipe, 215 - Second mounting bracket, 216 - Fourth support post, 3 - Inflating pipe, 31 - Fitting head, 32 - First mounting bracket, 33 - Vent valve, 34 - Second ventilation hose, 35 - Cable reel, 36 - Third linear cylinder, 4 - Cylindrical bin, 41 - Moving disk, 42 - Resisting post, 43 - Rod extending port, 44 - Driving rod, 45 - Folding rod, 46 - Driven strip, 47 - Half arc strip, 48 - First connecting pipe, 49 - Second connecting pipe, 410 - First ventilation hose, 411 - Mounting plate, 412 - Air pump, 413 - Air chamber, 414 - Working pipe, 415 - Guide rod, 416 - Sliding plate, 417 - Second spring, 418 - Limiting arc ring, 419 - Limiting rib, 420 - Limiting groove, 421 - Third spring. Detailed implementation mode

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following describes the implementation modes of the present invention in detail with reference to the accompanying drawings. However, the embodiments described herein are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0027] As Figure 1 shown, this embodiment provides a bottle blowing device, including a mold mechanism, a bottle placing mechanism, and an inflating mechanism.

[0028] Specifically, as Figure 1As shown in the figure, the mold mechanism includes five parallel and spaced modules. The modules have the same rectangular block shape, and the spacing between each module is adjustable. The module in the middle is the first mold block 1. The modules adjacent to both sides of the first mold block 1 are the second mold blocks 11. The two outermost modules are the third mold blocks 12. A plurality of semi-mold bins 13 with matching quantities and positions are arrayed on both side surfaces of the second mold block 11 and on the side surfaces of the first mold block 1 and the third mold block 12 adjacent to the second mold block 11. In this example, four semi-mold bins 13 are provided on each surface. The semi-mold bins 13 on the same surface are arrayed along the length direction, and the array spacing of the semi-mold bins 13 on different surfaces is matched to enable the semi-mold bins 13 on opposite surfaces to be combined to form four mold bin bodies. At their upper ends, they are all provided with semi-neck openings 14 that penetrate the top surface of the module. The inner diameter of the semi-neck opening 14 matches the radius of the preform, so that when the two semi-neck openings 14 cooperate to form an entire neck passage opening, the body of the preform can pass through the neck passage opening, while the convex ring at the upper end of the preform can be stuck outside the neck passage opening. More specifically, micropores that penetrate to the outside can be provided on the inner wall of the semi-mold bin 13 to facilitate the smooth progress of the bottle blowing operation.

[0029] Specifically, as Figure 1 shown, the bottle placing mechanism includes bottle placing tubes 2 that are located above the first mold block 1, are arrayed in four rows along the width direction, and are arrayed in multiple columns along the length direction. In this example, there are four columns. More specifically, the inner diameter of the bottle placing tube 2 matches the radius of the preform, so that the preform can move coaxially within the bottle placing tube 2. The number and spacing of the bottle placing tubes 2 in the column direction match the semi-mold bins 13. The axes of the two middle rows of bottle placing tubes 2 are coplanar with the two side surfaces of the first mold block 1 respectively, and the bottle placing tubes 2 are all arranged to move along the length direction.

[0030] Specifically, as Figure 1 shown, the inflation mechanism includes inflation tubes 3 with a quantity matching that of the bottle placing tubes 2. The inflation tubes 3 are correspondingly arranged in parallel at intervals along the length direction on the same side of the bottle placing tubes 2, with a fixed spacing and matching each other, that is, the spacing between the inflation tubes 3 and the bottle placing tubes 2 is equal, and the inflation tubes follow the bottle placing tubes 2 to move along the length direction. The inflation tubes 3 are all arranged to move along their own axial directions. At the lower ends of the inflation tubes 3, mating heads 31 are all connected. The mating heads 31 are used to cooperate with the upper ends of the preforms so that compressed air can be smoothly fed from the inflation tubes 3 into the preforms.

[0031] During operation, the positions of the second die block 11 and the third die block 12 are moved so that the two side surfaces of the first die block 1 are respectively in contact with the corresponding side surfaces of the second die block 11, and the other corresponding side surface of the second die block 11 is in contact with the corresponding side surface of the third die block 12, thereby forming sixteen die cavities in the half die cavity 13 and sixteen bottleneck channel openings in the half bottleneck 14; the bottle placing tube 2 is moved along the length direction so that the bottle placing tube 2 is coaxially aligned with the bottleneck channel openings one by one, preforms are put into the bottle placing tube 2, and the preforms fall into the die cavities through the bottle placing tube 2, and the convex rings at the upper ends of the preforms stay at the bottleneck channel openings; the bottle placing tube 2 is moved again along the length direction so that the air filling tube 3 is coaxially aligned with the bottleneck channel openings one by one, the air filling tube 3 is moved downward so that the mating head 31 mates with the upper end of the preform, and compressed air is filled into the preform through the air filling tube 3, and the preform expands and forms a plastic bottle in the die cavity; the air filling tube 3 is moved upward, and the positions of the second die block 11 and the third die block 12 are moved so that the formed plastic bottle falls out from below the half die cavity 13 between the first die block 1, the second die block 11, and the third die block 12, and the positions of the second die block 11 and the third die block 12 are moved again to perform the next bottle blowing operation.

[0032] Preferably, as Figure 2 shown, mounting bumps 15 are provided at both ends of the first die block 1, and the mounting bumps 15 are respectively fixedly sleeved on two slide bars 16 arranged parallel to the width direction. First sliding bumps 17 are provided at both ends of the second die block 11, and the first sliding bumps 17 are respectively slidably sleeved on the two slide bars 16. Second sliding bumps 18 are provided at both ends of the third die block 12, and the second sliding bumps 18 are respectively slidably sleeved on the two slide bars 16. First springs 19 are connected between adjacent mounting bumps 15 and first sliding bumps 17 and between adjacent first sliding bumps 17 and second sliding bumps 18. The first springs 19 are coaxially sleeved on the circumferences of the slide bars 16. When the first springs 19 are in the original state, a first predetermined distance is provided between the third die block 12 and the first die block 1 and the second die block 11. The first predetermined distance is used to enable the formed plastic bottle to smoothly fall out from below the half die cavity 13. With such a design, only by moving the third die block 12 can the combination and separation of the first die block 1, the second die block 11, and the third die block 12 be achieved, that is, only the driving structure of the third die block needs to be provided, reducing the maintenance difficulty of the die driving mechanism.

[0033] Preferably, as Figure 2As shown, mounting bumps 15 are all connected with mounting columns 110, the mounting columns 110 are all connected with mounting cross bars 111, both ends of the mounting cross bars 111 are connected with mounting vertical bars 112, the mounting vertical bars 112 connected to one mounting cross bar 111 are respectively connected to both ends of a slide bar 16. Two first linear cylinders 113 with opposite driving directions and both parallel to the length direction are provided on one of the mounting cross bars 111. Driving bumps 114 are provided at one end of the third die block 12 respectively. The driving shafts of the first linear cylinders 113 are respectively connected to the driving bumps 114, and the first linear cylinders 113 are used to drive the third die block 12 to move.

[0034] Preferably, as Figure 3 and Figure 4 shown, four groups of cylindrical bins 4 are provided on the upper surfaces of the second die block 11 and the third die block 12. The cylindrical bins 4 in the same group are arranged coaxially in an array along the length direction, and the number of arrays and the array pitch are both matched with the semi-die bin 13, that is, the cross section of the cylindrical bin 4 in the middle of its central axis is coplanar with the semi-die bin 13; the cylindrical bins 4 are all movably arranged along the width direction. A pair of moving disks 41 are coaxially provided in the cylindrical bins 4. The edges of the moving disks 41 are in sliding contact with the inner walls of the cylindrical bins 4 and their contact surfaces are airtight. A pair of abutting columns 42 are coaxially provided on the opposite surfaces of the pair of moving disks 41. Through holes 43 are coaxially penetrated at both ends of the cylindrical bins 4. A pair of driving rods 44 are coaxially connected to the opposite surfaces of the pair of moving disks 41 respectively. The driving rods 44 respectively pass through the corresponding through holes 43. Third springs 421 are connected between the opposite surfaces of the pair of moving disks 41 and the two ends of the cylindrical bins 4. The third springs 421 are coaxially arranged on the periphery of the driving rods 44 and are always in a compressed state. The ends of the driving rods 44 extending out of the through holes 43 are all connected with folding rods 45, and the folding rods 45 are all connected with driven strips 46. The driven strips 46 matching the pair of moving disks 41 are coaxially arranged along the length direction, and their opposite ends are all connected with semi-circular strips 47 and the connection points are located in the middle of the semi-circular strips 47. The central axes of the semi-circular strips 47 are all parallel to the height direction of the first die block 1. A second predetermined distance is provided between the semi-circular strips 47 and the upper surface of the first die block 1, and this second predetermined distance needs to be determined according to the depth of the mouth of the formed plastic bottle; specifically, the radius of the semi-circular strip 47 is matched with the outer diameter of the preform, so that the ring formed by the two semi-circular strips can pass through the preform body of the preform, and the convex ring at the upper end of the preform can be stuck on the ring; first communication pipes 48 are all communicated in the middle of the cylindrical bins 4. The first communication pipes 48 of the cylindrical bins 4 in the same group are communicated with the same second communication pipe 49, and the second communication pipes 49 are all communicated with first ventilation hoses 410. One of the mounting cross bars 111 is connected with a mounting plate 411, an air pump 412 and an air chamber 413 are provided on the mounting plate 411. A working pipe 414 is communicated between the working end of the air pump 412 and the air chamber 413. The first ventilation hoses 410 are communicated to the air chamber 413.

[0035] During operation, before the first die block 1, the second die block 11, and the third die block 12 are combined, the space between the moving disks 41 in the cylindrical chamber 4 is evacuated through the air pump 412, the working pipe 414, the air chamber 413, the first ventilation hose 410, the second connecting pipe 49, and the first connecting pipe 48. The moving disks 41 are driven by the air pressure to reduce the spacing, and under the drive of the third spring 421, the abutting posts 42 contact at the exact center of the cylindrical chamber 4. At this time, the two semi-circular strips 47 form a ring; during the process of moving the second die block 11 and the third die block 12, the cylindrical chamber 4 is moved simultaneously. After the first die block 1, the second die block 11, and the third die block 12 are combined, the rings formed by the semi-circular strips 47 are coaxially located above the bottleneck passage openings one by one. After the preform falls, the convex ring at the upper end of the preform can stay on the rings formed by the semi-circular strips 47; when the blow molding is completed and the first die block 1, the second die block 11, and the third die block 12 are separated, the cylindrical chamber 4 is moved, so that the ring drives the formed plastic bottle away from the inner wall of the semi-die chamber 13, preventing the plastic bottle from staying in the semi-die chamber 13 and being unable to fall; at this time, the space between the moving disks 41 in the cylindrical chamber 4 is evacuated, the moving disks 41 are driven by the air pressure to increase the spacing, the third spring 421 is compressed, and the semi-circular strips 47 are separated, and the formed plastic bottle can then fall smoothly.

[0036] Preferably, as Figure 1 and Figure 3 and Figure 4As shown, on the upper surfaces of the second die block 11 and the third die block 12, a set of guide rods 415 are provided along the width direction. A sliding plate 416 is slidably sleeved on each set of guide rods 415. A second spring 417 is coaxially sleeved on the periphery of each guide rod 415. The two ends of the second spring 417 are respectively connected to the end of the guide rod 415 facing away from the first die block 1 and the sliding plate 416. When the second spring 417 is in its original state, there is a third predetermined distance between the sliding plate 416 and the end of the guide rod 415 where it faces the first die block 1. This third predetermined distance is used to prevent the sliding plate 416 from covering the semi-bottle neck opening 14. A set of cylindrical bins 4 are correspondingly provided on the sliding plates 416. Limiting arc rings 418 are coaxially provided on the periphery of the semi-bottle neck openings 14 on the upper surfaces of the first die block 1 and the side of the second die block 11 facing away from the first die block 1. With such a design, there is no need to separately provide a driving structure for the cylindrical bins 4. During the process of moving the second die block 11 and the third die block 12 to merge the first die block 1, the second die block 11, and the third die block 12, the ring formed by the semi-arc strips 47 will first contact the limiting arc ring 418, and under the restriction of the limiting arc ring 418, the second spring 417 will be compressed and the sliding plate 416 will move. After merging, the rings formed by the semi-arc strips 47 will be coaxially located above the bottleneck channel openings one by one. During the process of separating the first die block 1, the second die block 11, and the third die block 12, the second spring 417 drives the sliding plate 416 to automatically return to its original position, so that the rings formed by the semi-arc strips 47 are located between the two semi-die bins 13. At this time, driving the separation of the semi-arc strips 47 can enable the formed plastic bottles to fall smoothly.

[0037] Preferably, as Figure 4 shown, limiting convex strips 419 are provided along the axial direction of the inner walls of the cylindrical bins 4. Limiting grooves 420 parallel to the axial direction of the moving plate 41 are opened at the edges of the moving plate 41. The limiting grooves 420 penetrate through the moving plate 41. The limiting grooves 420 are respectively slidably engaged with the corresponding limiting convex strips 419, and their mating surfaces have airtightness. The limiting convex strips 419 and the limiting grooves 420 are used to prevent the moving plate 41 from rotating around its central axis.

[0038] Preferably, as Figure 5As shown, a moving plate 21 is provided above the upper surface of the first die block 1 at intervals and in parallel. The upper end of the bottle placing pipe 2 is connected to the moving plate 21 and communicated to the upper surface of the moving plate 21. A first ring plate 22 is vertically connected to the periphery of the upper surface of the moving plate 21. Two of the sides of the first ring plate 22 are respectively connected with a mating strip 23. The mating strips 23 are respectively slidably mated with two mating rods 24 parallel to the length direction. Fixed strips 25 are provided outside the other two sides of the first ring plate 22. The two ends of the mating rods 24 are respectively connected to the two fixed strips 25. One of the fixed strips 25 is connected with a first support column 26. The first support columns 26 are all connected to another mounting cross bar 111. The other fixed strip 25 is connected with a second support column 27. The second support columns 27 are all connected to the mounting plate 411. A second linear cylinder 28 with a driving direction parallel to the length direction is provided on one of the fixed strips 25. The driving shaft of the second linear cylinder 28 is connected to the first ring plate 22. The second linear cylinder 28 is used to drive the moving plate 21 to move, and thus drive the bottle placing pipe 2 to move.

[0039] Preferably, as Figure 6 shown, a first mounting frame 32 is provided below the moving plate 21. An air vent valve 33 with a quantity matching that of the air filling pipes 3 is provided on the first mounting frame 32. The upper ends of the air filling pipes 3 are correspondingly communicated with the output ends of the air vent valves 33 one by one. The input end of the air vent valve 33 is communicated with a second ventilation hose 34. The lower end of one of the fixed strips 25 is connected with a wire spool 35. The second ventilation hoses 34 are all passed through the wire spool 35. The second ventilation hoses 34 are used to be communicated with an external compressed air conveying mechanism. A third linear cylinder 36 is vertically provided on the moving plate 21. The driving shaft of the third linear cylinder 36 is connected to the first mounting frame 32. The third linear cylinder 36 is used to drive the first mounting frame 32 to move, and thus drive the air filling pipes 3 to move.

[0040] Preferably, as Figure 1 and Figure 7As shown in the figure, a fixed plate 29 is provided parallelly at an interval above the upper surface of the moving plate 21. A heating pipe 210 with a quantity matching that of the bottle placing pipe 2 is vertically connected to the lower surface of the fixed plate 29. The upper end of the heating pipe 210 communicates with the upper surface of the fixed plate 29. The heating pipes 210 and the bottle placing pipes 2 are arranged in the same array, and two rows of heating pipes 210 in the middle of the array along the width direction are coaxially corresponding to the semi-bottle necks 14 on the first mold block 1 one by one. Heating grooves 211 are provided on the inner walls of the heating pipes 210, and heating components for heating are arranged in the heating grooves 211. A second ring plate 212 is vertically connected to the periphery of the lower surface of the fixed plate 29. Two third support columns 213 are connected to each fixing strip 25, and the third support columns 213 are all connected to the second ring plate 212; with such a design, when the charging pipe 3 inflates the preform, the next batch of preforms can be put into the heating pipes 210, and the heating pipes 210 can reheat the next batch of preforms, making up for the temperature lost during the transfer of the preforms and improving the blow molding quality; when the current preform is blown and falls out of the equipment, the bottle placing pipe 2 is moved, and the preforms in the heating pipes 210 fall into the lower mold bin through the bottle placing pipe 2.

[0041] Preferably, as Figure 1 and Figure 7 shown in the figure, a bottle feeding pipe 214 with a quantity matching that of the bottle placing pipe 2 is further provided above the fixed plate 29. The bottle feeding pipes 214 and the charging pipes 3 are coaxially arranged one by one. The bottle feeding pipes 214 are installed on the second mounting frame 215. Two fourth support columns 216 are connected to each cooperating strip 23, and the fourth support columns 216 are all connected to the second mounting frame 215; during operation, when the preforms in the heating pipes 210 fall into the lower mold bin through the bottle placing pipes 2, preforms can be put into the bottle feeding pipes 214 at the same time. When the bottle placing pipes 2 are moved for blow molding work, the bottle feeding pipes 214 move along with the bottle placing pipes 2, and the preforms therein enter the heating pipes 210; with such a design, the time consumed for directly putting preforms into the heating pipes 210 can be saved, the heating time of the preforms in the heating pipes 210 can be increased and stabilized, so that the preforms can be heated more stably, and the blow molding quality is improved; more specifically, putting preforms into the bottle feeding pipes 214 can be achieved by using a grasping mechanism to grasp from the track, or the preforms can be pre-placed in a supporting tooling and the supporting tooling is used to feed materials above the bottle feeding pipes 214. These all belong to the prior art, so no more details will be described here.

[0042] The above are only the preferred embodiments of the present application and are not used to limit the present application. Obviously, those skilled in the art can make various changes and deformations to the present application without departing from the spirit and scope of the present application.

Claims

1. A bottle blowing device, characterized in that: include: The mold mechanism comprises five modules arranged in parallel and at intervals, wherein the intervals between the modules are adjustable, wherein the module located in the middle is a first mold block (1), the modules adjacent to the first mold block (1) on both sides are second mold blocks (11), and the two modules located on the outermost sides are third mold blocks (12), and the two side surfaces of the second mold block (11) and the side surfaces adjacent to the first mold block (1), the third mold block (12) and the second mold block (11) are all provided with a plurality of half mold bins (13) of matching number and position, and the upper ends of the half mold bins are all provided with a half bottleneck opening (14) penetrating the top surface of the module; The bottle placing mechanism comprises bottle placing tubes (2) which are located above the first mold block (1) and are arranged in four rows along the width direction of the first mold block (1) and in multiple rows along the length direction of the first mold block (1), the number and spacing of the bottle placing tubes (2) in the row direction match the half mold bin (13), the axes of the bottle placing tubes (2) in the middle two rows are respectively coplanar with the two side surfaces of the first mold block (1), and the bottle placing tubes (2) are all arranged to move along the length direction; The inflation mechanism comprises an inflation tube (3) whose number matches the bottle placing tube (2), the inflation tubes (3) being arranged one by one in parallel and at intervals along the length direction on the same side of the bottle placing tube (2) with a fixed spacing and matching each other, the inflation tubes (3) being arranged to move along their own axial direction, and the lower ends of the inflation tubes (3) being connected to matching heads (31) for matching with the upper ends of the preforms.

2. The bottle blowing equipment according to claim 1, characterized in that: Both ends of the first mold block (1) are provided with mounting protrusions (15), which are respectively fixedly sleeved on two slide bars (16) arranged parallel to the width direction; both ends of the second mold block (11) are provided with first sliding protrusions (17), which are respectively slidably sleeved on the two slide bars (16); both ends of the third mold block (12) are provided with second sliding protrusions (18), which are respectively slidably sleeved on the two slide bars (16); first springs (19) are connected between adjacent mounting protrusions (15) and first sliding protrusions (17), and between adjacent first sliding protrusions (17) and second sliding protrusions (18); the first springs (19) are coaxially sleeved on the circumference of the slide bars (16); when the first springs (19) are in an original state, the third mold block (12) is spaced from the first mold block (1) and the second mold block (11) by a first predetermined distance.

3. The bottle blowing equipment according to claim 2, characterized in that: The mounting protrusions (15) are all connected to mounting columns (110), the mounting columns (110) are all connected to mounting horizontal bars (111), both ends of the mounting horizontal bars (111) are connected to mounting vertical bars (112), the mounting vertical bars (112) connected to one mounting horizontal bar (111) are respectively connected to both ends of a slide bar (16), one of the mounting horizontal bars (111) is provided with two first linear cylinders (113) with opposite driving directions and parallel to the length direction, one end of the third mold block (12) is provided with a driving protrusion (114), and the driving shafts of the first linear cylinders (113) are respectively connected to the driving protrusions (114).

4. The bottle blowing equipment according to claim 3, characterized in that: Four groups of columnar bins (4) are provided on the upper surfaces of the second mold block (11) and the third mold block (12). The columnar bins (4) of the same group are arranged in a coaxial array along the length direction, and the number of arrays and the array spacing are matched with the half mold bin (13). The columnar bins (4) are arranged to move along the width direction. A pair of movable disks (41) are coaxially provided in the columnar bins (4). The edges of the movable disks (41) are in sliding contact with the inner wall of the columnar bin (4) and the contact surfaces are airtight. Abutment columns (42) are coaxially provided on opposite sides of the pair of movable disks (41). Both ends of the columnar bins (4) are coaxially penetrated with extension rod openings (43). The opposite sides of the pair of movable disks (41) are coaxially connected with active rods (44). The active rods (44) are respectively penetrated through the corresponding extension rod openings (43). A third spring (421) is connected between the opposite sides of the pair of movable disks (41) and the two ends of the columnar bins (4). The third spring (421) is coaxially provided on the active rods. On the side of the first mold block (44), the third spring (421) is always in a compressed state. One end of the active rod (44) extending out of the rod extension opening (43) is connected to a folding rod (45). The folding rod (45) is connected to a driven bar (46). The driven bars (46) matched with the pair of movable disks (41) are coaxially arranged along the length direction. The opposite ends thereof are connected to a semi-arc bar (47) and the connection point is located in the middle of the semi-arc bar (47). The central axis of the semi-arc bar (47) is parallel to the height direction of the first mold block (1). The semi-arc bar (47) and the upper surface of the first mold block (1) are spaced apart by a second predetermined distance. The middle of the columnar bins (4) are connected to a first connecting pipe (48). The first connecting pipes (48) of the same group of columnar bins (4) are connected to the same second connecting pipe (49). The second connecting pipes (49) are connected to a first ventilation hose (410). The first ventilation hose (410) is used to connect to an external gas delivery device.

5. The bottle blowing equipment according to claim 4, characterized in that: A group of guide rods (415) are provided on the upper surfaces of the second mold block (11) and the third mold block (12) along the width direction. A sliding plate (416) is slidably sleeved on each group of guide rods (415). A second spring (417) is coaxially sleeved on the circumference of the guide rods (415). Two ends of the second spring (417) are respectively connected to one end of the guide rod (415) facing away from the first mold block (1) and the sliding plate (416). When the second spring (417) is in an original state, the sliding plate (416) and the end of the guide rod (415) facing the first mold block (1) are spaced apart by a third predetermined distance. Each group of columnar bins (4) is correspondingly arranged on the sliding plate (416). A limiting arc ring (418) is coaxially provided on the circumference of the semi-bottleneck opening (14) on the upper surfaces of the first mold block (1) and the second mold block (11) facing away from the first mold block (1).

6. The bottle blowing equipment according to claim 4, characterized in that: The inner wall of the columnar bin (4) is provided with a limiting convex strip (419) along its own axial direction, and the edge of the movable disk (41) is provided with a limiting groove (420) parallel to its own axial direction, the limiting groove (420) passes through the movable disk (41), and the limiting groove (420) is respectively slidably matched with the corresponding limiting convex strip (419), and the matching surface is airtight.

7. The bottle blowing equipment according to claim 4, characterized in that: A movable plate (21) is arranged parallel to and spaced above the upper surface of the first mold block (1); the upper end of the bottle placing tube (2) is connected to the movable plate (21) and communicated with the upper surface of the movable plate (21); a first ring plate (22) is vertically connected to the circumference of the upper surface of the movable plate (21); both sides of the first ring plate (22) are connected to matching strips (23); the matching strips (23) are respectively slidably matched with two matching rods (24) parallel to the length direction; the other two sides of the first ring plate (22) are provided with fixed strips (25); both sides of the matching rods (24) are connected to the first ring plate (22); Two fixing bars (25) are respectively connected to the ends thereof, one of the fixing bars (25) is connected to a first support column (26), the first support columns (26) are connected to another mounting horizontal bar (111), the other fixing bar (25) is connected to a second support column (27), the second support columns (27) are connected to a mounting plate (411), one of the fixing bars (25) is provided with a second linear cylinder (28) having a driving direction parallel to the length direction, and the driving shaft of the second linear cylinder (28) is connected to the first ring plate (22).

8. The bottle blowing equipment according to claim 7, characterized in that: A first mounting frame (32) is provided below the movable plate (21). The first mounting frame (32) is provided with ventilation valves (33) whose number matches the number of the inflation tubes (3). The upper ends of the inflation tubes (3) are connected to the output ends of the ventilation valves (33) in a one-to-one correspondence. The input ends of the ventilation valves (33) are connected to the second ventilation hoses (34). The lower end of one of the fixing strips (25) is connected to a cable tray (35). The second ventilation hoses (34) are all inserted into the cable tray (35). The second ventilation hoses (34) are used to communicate with an external compressed air delivery mechanism. A third linear cylinder (36) is vertically provided on the movable plate (21). The drive shaft of the third linear cylinder (36) is connected to the first mounting frame (32).

9. The bottle blowing equipment according to claim 7, characterized in that: A fixed plate (29) is arranged above the upper surface of the movable plate (21) in parallel and at intervals. The lower surface of the fixed plate (29) is vertically connected with heating tubes (210) whose number matches the bottle placing tubes (2). The upper ends of the heating tubes (210) are connected to the upper surface of the fixed plate (29). The heating tubes (210) and the bottle placing tubes (2) are arranged in the same array, and two rows of heating tubes (210) in the middle section of the array along the width direction are coaxially corresponding to the semi-bottleneck openings (14) on the first mold block (1). The inner walls of the heating tubes (210) are provided with heating grooves (211). The heating grooves (211) are provided with heating components for heating. A second ring plate (212) is vertically connected to the circumference of the lower surface of the fixed plate (29). The fixed bars (25) are connected to two third support columns (213), and the third support columns (213) are connected to the second ring plate (212).

10. The bottle blowing equipment according to claim 8, characterized in that: A number of bottle delivery tubes (214) matching the number of bottle placing tubes (2) are also provided above the fixing plate (29); the bottle delivery tubes (214) are coaxially arranged in a one-to-one correspondence with the inflation tubes (3); the bottle delivery tubes (214) are mounted on a second mounting frame (215); the matching strips (23) are each connected to two fourth support columns (216); and the fourth support columns (216) are each connected to the second mounting frame (215).

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