Chain channel assembly for bottle blowing machine capable of discharging two bottles at one time

Abstract

A chain way assembly for a one-out-two bottle blowing machine comprises a track and a bottle blank base connected to the track in a sliding mode, the track is in an inverted T shape and comprises a longitudinal single track, a longitudinal double track, a second transverse track, a second pitch changing mechanism, a mold closing track, a first transverse track and a first pitch changing mechanism, and the longitudinal single track, the longitudinal double tracks, the second transverse track, the second pitch changing mechanism, the mold closing track, the first transverse track and the first pitch changing mechanism are sequentially connected end to end. And the longitudinal double-track is a bidirectional turn-back track for heating bottle blanks, one end of the longitudinal double-track is connected with the tail part of the longitudinal single-track, and the other end of the longitudinal double-track is connected with the head part of the second transverse track. The device can greatly reduce the loss of heat energy and improve the heat efficiency. The bottle blowing machine is simple in structure, convenient to operate, capable of achieving heating of bottle blanks of different specifications on the machine and die assembly stretching bottle blowing work, capable of better preventing the bottle interference phenomenon after die assembly, capable of greatly increasing the application range of the bottle blowing machine, capable of further reducing heat energy loss and capable of improving heat efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of bottle blowing machine structures, and in particular relates to a chain conveyor assembly for a one-outlet two-outlet bottle blowing machine. Background Art

[0002] Most of the existing bottle blowing machines use a plastic chain block push block mechanism, the chain path is a rectangular mechanism, the heating light box is an ordinary light box, and the lamp tube is arranged on one side of the bottle blank, which has the disadvantages of high energy consumption, few heating positions, and difficult to heat the bottle blank evenly; at the same time, it occupies a large area. Therefore, new and efficient bottle blowing machines have appeared on the current market, such as the Chinese invention patent with patent number CN202221694183.8, which specifically discloses: a frame, a chain path mechanism, a blank loading mechanism, a folding stepping mechanism, a light box heating mechanism, a mold clamping stretching mechanism, a hand-over variable pitch mechanism, and a bottle lowering stepping mechanism. This invention sets the chain path as a "b"-shaped mechanism and its vertical section as a return mechanism, and sets the curved arm part of the mold-closing and stretching device above the arc-shaped mechanism of the "b"-shaped chain path, so that the length direction of the mold-closing and stretching mechanism is consistent with the vertical section direction, thereby greatly reducing the space occupied by the whole machine; and this invention can realize the working mode of baking double-sided blanks with a single row of lamps at the same time by setting the above-mentioned chain path mechanism, reducing the number and power of heating lamps and the loss of heat energy, greatly improving the thermal efficiency of lamp heating, and achieving high efficiency and energy saving. However, the bottle blowing machine described in this patent is a one-out-one model, that is, only one preform can be blown each time the mold is opened and closed, which greatly reduces the output of the bottle blowing machine. Compared with the one-out-two model patent, it is not suitable for market promotion.

[0003] Therefore, how to provide a chain conveyor assembly for a one-out-two blow molding machine that not only greatly reduces heat energy loss and improves thermal efficiency, but also enables free variation of preform spacing is one of the technical problems that urgently need to be solved in this field. Summary of the invention

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A chain track assembly for a one-outlet two-outlet bottle blowing machine comprises a track and a preform seat slidably connected to the track, wherein the track is convex and comprises a longitudinal single track, a longitudinal double track, a second transverse track, a second pitch-changing mechanism, a mold clamping track, a first transverse track and a first pitch-changing mechanism connected end to end; the longitudinal double track is a bidirectional return track for preform heating, one end of which is connected to the tail of the longitudinal single track, and the other end is connected to the head of the second transverse track;

[0006] A second pitch-changing mechanism is provided in the middle of the second transverse track so as to divide the longitudinal single track of the second transverse track into a transverse double track with a gap; a first pitch-changing mechanism is provided in the middle of the first transverse track so as to divide the longitudinal single track of the first transverse track into a transverse double track with a gap;

[0007] The first pitch-changing mechanism is an integrated mechanism with a rectangular lower cross section and a triangular upper cross section;

[0008] The second pitch-changing mechanism is an integrated mechanism with a rectangular lower cross-section and a triangular upper cross-section; and the lower length of the second pitch-changing mechanism is shorter than the lower length of the first pitch-changing mechanism.

[0009] Preferably, a blank loading mechanism installation position is provided in the middle of the longitudinal single track for installing a blank loading mechanism of a bottle blowing machine; and a blank pushing mechanism is fixedly provided on one side where the tail of the first transverse track is connected to the head of the longitudinal single track.

[0010] Preferably, the longitudinal double-track folding position is fixedly connected with a steering mechanism; and a blank pushing mechanism is fixedly arranged on the outer side of the steering mechanism.

[0011] Preferably, the billet pushing mechanism includes a billet pushing block, a billet pushing motor, a first rack, a fixed seat, a gear, a first connecting plate and a third sliding guide rail; the fixed seat is fixed on the bottle blowing machine frame, and a third sliding guide rail is provided on the upper end thereof; the billet pushing motor is fixedly connected to the fixed seat, and its output end extends out of the fixed seat and is transmission connected to the gear; the lower end of the billet pushing block is slidably connected to the upper end of the fixed seat through the third sliding guide rail, and the end of the billet pushing block away from the billet pushing motor is fixedly connected to the upper end of the first connecting plate; the lower end of the first connecting plate is fixedly connected to the upper end of the first rack; the lower end of the first rack is meshingly connected to the gear.

[0012] Preferably, a second transverse stepping mechanism is provided below the second transverse track for pushing the preform seat from the tail end of the longitudinal double track into the second transverse track, so that the distance between two adjacent preform seats becomes larger through the second transverse track pitch change;

[0013] A first transverse stepping mechanism is arranged below the first transverse track to push the preform seat from the tail end of the mold clamping track into the first transverse track to reduce the distance between two adjacent preform seats.

[0014] Preferably, the distance between two adjacent groups of the preform seats after leaving the tail of the second transverse track and before entering the first transverse track, i.e., on the mold closing track, is equal to the mold cavity distance;

[0015] The distance between two adjacent bottle blank seats after entering the head of the longitudinal single track and before leaving the longitudinal double track is equal to the outer diameter of the bearing of the bottle blank seat.

[0016] Preferably, the steering mechanism comprises a turntable for steering the preform seat at the longitudinal double-track turning position;

[0017] It also includes a servo motor reducer, a support base, a third reducer base, several columns, a second connecting plate, a blank transfer track and a blank base; the servo motor reducer is arranged at the lower part of the third reducer base and its output part passes through the third reducer base; the support base is fixedly arranged at the lower part of the third reducer base so as to be fixedly connected to the frame table; the upper surface of the third reducer base is fixedly connected to the lower surface of the blank transfer track through several columns; the output end of the servo motor reducer is transmission-connected to the turntable through the second connecting plate; the blank base is placed in the track of the turntable.

[0018] Preferably, a bottle lowering mechanism installation position is provided on the outer side of the mold closing track close to the first transverse track head end, for fixing and installing the bottle lowering mechanism.

[0019] Preferably, the first transverse stepping mechanism includes a first fixed plate, a push seat, a first sliding guide rail, a servo motor, a reducer, a first gear, a second rack, a bolt roller and a first reducer seat; the servo motor and the reducer are arranged on one side of the first fixed plate, and the output end thereof passes through the portion of the first fixed plate and is fixedly connected to the first gear; two first sliding guide rails are arranged on the other side surface of the first fixed plate, and the push seat is slidably connected to the top of the first fixed plate through the first sliding guide rails; the second rack is arranged between the two first sliding guide rails, one end of the second rack is fixedly connected to the lower end of the push seat, and the other end is meshed with the first gear; the upper end of the servo motor is transmission-connected to the reducer, and the reducer is fixedly connected to the lower surface of the first fixed plate; the bolt roller is fixedly arranged on the upper surface of the first fixed plate, and is arranged corresponding to the first gear to limit the second rack from offset.

[0020] Preferably, the longitudinal double tracks are the light box heating area.

[0021] The present invention has the following beneficial effects compared with the prior art:

[0022] The above device of the present invention can make the bottle blank move with the bottle blank seat in the "convex" chain path. At the light box, the distance of the return chain path is relatively close, and a mechanism of arranging a row of heating lamps in the middle is adopted. At the same time, the spacing between the bottle blanks is also a structure of small spacing. Compared with the structure of arranging heating lamps on both sides of the chain path, the loss of heat energy is greatly reduced and the thermal efficiency is improved. After the bottle blank slides out of the light box with the blank seat, due to the variable distance mechanism adopted by the chain path, the distance between the two adjacent blank seats is enlarged to the large distance required by the mold clamping mechanism to meet the larger distance after the bottle blank is stretched and formed. The formed bottle is separated from the blank seat at the lower bottle, and the separated blank seat is restored to the small spacing at the light box through the variable distance mechanism. Therefore, the heating and mold clamping stretching and blowing of bottles of different specifications can be realized on this machine, and the interference phenomenon of the bottle body after the mold clamping can be better prevented, which greatly increases the application range of the bottle blowing machine, and further reduces the loss of heat energy and improves the thermal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a chain conveyor assembly for a one-outlet two-outlet bottle blowing machine provided by the present invention;

[0024] Figure 2 For the present invention Figure 1 A is an enlarged schematic diagram;

[0025] Figure 3 For the present invention Figure 1 A magnified schematic diagram of B;

[0026] Figure 4 For the present invention Figure 1 A magnified schematic diagram of middle C;

[0027] Figure 5 For the present invention Figure 1 Structure diagram of the second horizontal stepping mechanism

[0028] Figure 6 For the present invention Figure 1 Structure diagram of the first horizontal stepping mechanism

[0029] Figure 7 For the present invention Figure 1 Steering mechanism structure diagram of the middle longitudinal double track

[0030] Among them, 1. the first transverse track; 101, the first pitch-changing mechanism; 102, the first transverse stepping mechanism; 1021, the first fixed plate; 1022, the push seat; 1023, the first sliding guide rail; 1024, the servo motor; 1025, the reducer; 1026, the gear; 1027, the second rack; 1028, the bolt roller; 1029, the first reducer seat; 2. the lower bottle mechanism installation position; 3, the blank pushing mechanism; 301, the blank pushing block; 302, the blank pushing motor; 303, the first rack; 304, the fixed seat; 305, the gear; 306, the first connecting plate; 307, the third sliding guide rail; 4, the longitudinal single track; 401, the upper blank mechanism installation position; 5, the second transverse track; 501 , second pitch-changing mechanism; 6, mold-closing track; 7, second lateral stepping mechanism; 701, second fixed plate; 702, second sliding guide rail; 703, second reducer seat; 704, guide rail; 705, connecting seat; 706, servo motor reducer; 707, first bearing seat; 708, coupling; 709, ball screw; 710, slide seat; 711, bearing; 712, second bearing seat; 713, bearing gland; 8, steering mechanism; 801, servo motor reducer; 802, support seat; 803, third reducer seat; 804, column; 805, second connecting plate; 806, turntable; 807, blank transfer track; 808, blank seat; 809, bottle blank; 9, longitudinal double track. DETAILED DESCRIPTION

[0031] Example 1

[0032] See attached Figure 1-4 The chain track assembly for a one-outlet two-outlet blow molding machine shown in the figure comprises a track and a bottle blank seat slidably connected to the track. The track is in a "convex" shape and comprises a longitudinal single track 4, a longitudinal double track 9, a second transverse track 5, a second pitch-changing mechanism 501, a mold clamping track 6, a first transverse track 1 and a first pitch-changing mechanism 101 connected end to end. The longitudinal double track 9 is a bidirectional return track for heating the bottle blank, one end of which is connected to the tail of the longitudinal single track 4 and the other end is connected to the head of the second transverse track 5. The second pitch-changing mechanism 501 is arranged in the middle of the second transverse track 5. 1, so as to divide the longitudinal single track of the second transverse track 5 into transverse double tracks with a gap; a first pitch-changing mechanism 101 is arranged in the middle of the first transverse track 1, so as to divide the longitudinal single track of the first transverse track 1 into transverse double tracks with a gap; the first pitch-changing mechanism 101 is an integrated mechanism with a rectangular lower section and a triangular upper section; the second pitch-changing mechanism 501 is an integrated mechanism with a rectangular lower section and a triangular upper section; and the lower length of the second pitch-changing mechanism 501 is less than the lower length of the first pitch-changing mechanism 101.

[0033] As a preferred or optional method of this embodiment, a blank loading mechanism installation position 2 is provided in the middle position of the longitudinal single track 4 for installing the blank loading mechanism of the bottle blowing machine; and a blank pushing mechanism 3 is fixedly provided on the side where the tail of the first transverse track 1 is connected to the head of the longitudinal single track 4.

[0034] As a preferred or optional mode of this embodiment, a turning mechanism 8 is fixedly connected to the turning position of the longitudinal double track 9 ; a blank pushing mechanism 3 is fixedly arranged on the outer side of the turning mechanism 8 .

[0035] As a preferred or optional mode of this embodiment, the blank pushing mechanism 3 includes a blank pushing block 301, a blank pushing motor 302, a first rack 303, a fixed seat 304, a gear 305, a first connecting plate 306 and a third sliding guide rail 307; the fixed seat 304 is fixed on the bottle blowing machine frame, and a third sliding guide rail 307 is provided at its upper end; the blank pushing motor 302 is fixedly connected to the fixed seat 304, and its output end extends out of the fixed seat 304 and is transmission-connected with the gear 305; the lower end of the blank pushing block 301 is slidingly connected to the upper end of the fixed seat 304 through the third sliding guide rail 307, and the end of the blank pushing block 301 away from the blank pushing motor 302 is fixedly connected to the upper end of the first connecting plate 306; the lower end of the first connecting plate 306 is fixedly connected to the upper end of the first rack 303; the lower end of the first rack 303 is meshingly connected with the gear 305.

[0036] As a preferred or optional manner of this embodiment, a second transverse stepping mechanism 7 is provided below the second transverse track 5 for pushing the preform seat from the tail end of the longitudinal double track 9 into the second transverse track 5 laterally, so that the distance between two adjacent preform seats becomes larger through the second transverse track pitch change; a first transverse stepping mechanism 102 is provided below the first transverse track 1 for pushing the preform seat from the tail end of the mold closing track 6 into the first transverse track 1 so that the distance between two adjacent preform seats becomes smaller.

[0037] As a preferred or optional mode of this embodiment, the distance between two adjacent groups of preform seats after leaving the tail of the second transverse track 5 and before entering the first transverse track 1, that is, on the mold closing track 6, is equal to the mold cavity distance; the distance between two adjacent preform seats after entering the head of the longitudinal single track 4 and before leaving the longitudinal double track 9 is equal to the outer diameter of the bearing of the preform seat.

[0038] As a preferred or optional mode of this embodiment, the steering mechanism 8 includes a turntable 806, which is used to enable the bottle blank seat to realize steering at the turning point of the longitudinal double track 9; it also includes a servo motor reducer 801, a support seat 802, a third reducer seat 803, a plurality of columns 804, a second connecting plate 805, a blank transfer track 807 and a blank seat 808; the servo motor reducer 801 is arranged at the lower part of the third reducer seat 803 and its output part passes through the third reducer seat 803; the lower part of the third reducer seat 803 is fixedly provided with a support seat 802 so as to be fixedly connected to the frame table; the upper surface of the third reducer seat 803 is fixedly connected to the lower surface of the blank transfer track 807 through a plurality of columns 804; the output end of the servo motor reducer 801 is transmission-connected to the turntable 806 through the second connecting plate 805; the blank seat 808 is placed in the track of the turntable 806.

[0039] As a preferred or optional manner of this embodiment, a bottle lowering mechanism installation position is provided on the outer side of the mold closing track 6 close to the head end of the first transverse track 1 for fixing and installing the bottle lowering mechanism.

[0040] As a preferred or optional mode of this embodiment, the first lateral stepping mechanism 102 includes a first fixed plate 1021, a push seat 1022, a first sliding guide rail 1023, a servo motor 1024, a reducer 1025, a first gear 1026, a second rack 1027, a bolt roller 1028 and a first reducer seat 1029; the servo motor 1024 and the reducer 1025 are arranged on one side of the first fixed plate 1021 and their output ends pass through the part of the first fixed plate 1021 and are fixedly connected to the first gear 1026; two first sliding guide rails 1023 are arranged on the surface of the other side of the first fixed plate 1021, and the push seat 1022 is provided with a first sliding guide rail 1023, and the first gear 1026 is provided with a second rack 1027, a bolt roller 1028 and a first reducer seat 1029; the servo motor 1024 and the reducer 1025 are arranged on one side of the first fixed plate 1021 and the output ends thereof pass through the part of the first fixed plate 1021 and are fixedly connected to the first gear 1026; two first sliding guide rails 1023 are arranged on the surface of the other side of the first fixed plate 1021, and the push seat 1022 is provided with a first sliding guide rail 1023, and the first gear 1026 is provided with a second rack 1027, a bolt roller 1028 and a first reducer seat 1029; The seat 1022 is slidably connected to the top of the first fixed plate 1021 through the first sliding guide rail 1023; the second rack 1027 is arranged between the two first sliding guide rails 1023, one end of the second rack 1027 is fixedly connected to the lower end of the push seat 1022, and the other end is meshed with the first gear 1026; the upper end of the servo motor 1024 is transmission-connected to the reducer 1025, and the reducer 1025 is fixedly connected to the lower surface of the first fixed plate 1021; the bolt roller 1028 is fixedly arranged on the upper surface of the first fixed plate 1021, and is arranged corresponding to the first gear 1026 to limit the second rack 1027 from offset.

[0041] As a preferred or optional mode of this embodiment, the second transverse stepping mechanism 7 includes a second fixed plate 701, two second sliding rails 702 arranged on the second fixed plate 701, a second motor seat 703, a slide seat 704, a connecting seat 705, a servo motor 706, a first bearing seat 707, a coupling 708, a ball screw 709, a slide seat 710, a bearing 711, a second bearing seat 712 and a bearing cover 713; the front end of the connecting seat 705 is fixedly connected to the slide seat 704, the slide seat 704 is slidably connected to the second fixed plate 701 through the sliding rail 702, the connecting seat 705 is penetrated by the second fixed plate 701, and is fixedly connected to the slide seat 710 below the second fixed plate 701; the second fixed plate 701 is away from the connecting seat The lower part of one end of the connecting seat 705 is fixedly connected to the second motor seat 703, and the servo motor 706 is fixedly arranged in the middle of the second motor seat 703. The output end of the servo motor 706 is transmission-connected to one end of the ball screw 709 through the coupling 708. The ball screw 709 is rotationally connected to the side of the second fixed plate 701 away from the servo motor 706 through the first bearing seat 707 and the second bearing seat 712. A bearing 711 is arranged in the first bearing seat 707; a bearing 711 is also arranged in the second bearing seat 712; when the servo motor 706 is started, the output shaft drives the ball screw 709 to rotate, and the rotation of the ball screw 709 drives the slide seat 710 to reciprocate, and drives the bottle blank seat connected in the notch above the slide seat 704 to reciprocate along the direction of the sliding track 702.

[0042] The operating principle of the chain track assembly for the one-out-two blow molding machine of the present invention is as follows: after the preform seat passes through the bottle lowering mechanism, it enters the first transverse track 1 through the action of the first transverse stepping mechanism. The first transverse track 1 is separated into double tracks by the first pitch-changing mechanism. At the head of the track, the center distance of the double tracks is equal to the mold cavity spacing, i.e., the large spacing. At the tail of the first transverse track 1, the spacing of the double tracks is equal to the outer diameter of the bearing of the preform seat, i.e., the small spacing. The tail of the first transverse track 1 is connected to the longitudinal single track 4. Under the push of the first transverse stepping mechanism 102, the two rows of preform seats enter the longitudinal single track 4 at the same time from the first transverse track 1. Under the push of the preform pushing mechanism 3, the preform seat steps toward the longitudinal double track 9 in the longitudinal single track 4. At the approximately middle position of the longitudinal single track, the preform is placed on the preform seat through the preform loading mechanism and enters the chain track. At the light box, the outer track and the inner track of the return share a track bar on one side, so that the distance between the outer and inner tracks is shortened to ensure that the distance between the preforms between the tracks is minimized, so as to facilitate the arrangement of a single row of lamps above the shared track bar to heat the preforms on both sides. At the same time, a steering mechanism 8 and a preform pushing mechanism 3 are provided at the turning position of the longitudinal double track 9. The steering mechanism 8 is used to turn the preform seat in reverse direction, and the preform pushing mechanism 3 is used to realize the stepping of the preform seat in reverse direction in the return direction of the longitudinal double track. The preform seat moves to the exit of the light box, and under the push of the second transverse stepping mechanism 7, the preform seat enters the second transverse track 5. At the head of the second transverse track 5, the distance between the preform seats is equal to the outer diameter of the bearing of the preform seat (i.e., small spacing), and at the tail of the second transverse track 5, the spacing between the preform seats is equal to the spacing between the mold cavities (i.e., large spacing). Under the push of the second transverse stepping mechanism 7, the preform seat steps into the mold closing track 6, and the head of the mold closing track 6 is connected to the second transverse track 5, and the tail is connected to the first transverse track 1. The preform slides to the sealing cylinder of the mold closing mechanism under the push of the mold closing and hand-turning mechanism, and the stretch blow molding is completed according to the bottle blowing process. The finished bottle is then moved to the bottle unloading station at the tail end of the mold closing track through the hand-turning mechanism to complete the bottle unloading operation and realize the separation of the finished bottle from the bottle blowing machine.

[0043] The above device of the present invention can make the bottle blank move in a circular manner in the "convex" chain path with the bottle blank seat. At the light box, the distance of the return chain path is relatively close, and a mechanism with a row of heating lamps arranged in the middle is adopted. At the same time, the spacing between the bottle blanks also adopts a small spacing structure, which greatly reduces the loss of heat energy and improves the thermal efficiency. After the bottle blank slides out of the light box with the blank seat, due to the variable distance mechanism adopted by the chain path, the spacing between the two adjacent blank seats is enlarged to the large spacing required by the mold clamping mechanism to meet the larger spacing after the bottle blank is stretched and formed. The formed bottle is separated from the blank seat at the lower bottle, and the separated blank seat is restored to the small spacing at the light box through the variable distance mechanism. Thereby, the heating and stretching of bottle blanks of different specifications can be realized, and the interference phenomenon of the bottle body after the mold clamping can be well prevented, and the loss of heat energy is further reduced, the thermal efficiency is improved, and the application range of the bottle blowing machine is greatly improved. At the same time, because it is a one-out-two machine model, the production capacity of the bottle blowing machine is also greatly improved, which brings higher cost performance to users.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A chain track assembly for a one-outlet two-outlet bottle blowing machine, comprising a track and a preform seat slidably connected to the track, characterized in that: The track is in a "convex" shape, and comprises a longitudinal single track (4), a longitudinal double track (9), a second transverse track (5), a second pitch changing mechanism (501), a mold clamping track (6), a first transverse track (1) and a first pitch changing mechanism (101) connected end to end in sequence; the longitudinal double track (9) is a bidirectional return track used for preform heating, one end of which is connected to the tail of the longitudinal single track (4), and the other end of which is connected to the head of the second transverse track (5); A second variable distance mechanism (501) is provided in the middle of the second transverse track (5) so as to divide the longitudinal single track of the second transverse track (5) into a transverse double track with a gap; a first variable distance mechanism (101) is provided in the middle of the first transverse track (1) so as to divide the longitudinal single track of the first transverse track (1) into a transverse double track with a gap; The first pitch-changing mechanism (101) is an integrated mechanism with a rectangular lower cross section and a triangular upper cross section; The second pitch-changing mechanism (501) is an integrated mechanism with a rectangular lower cross-section and a triangular upper cross-section; and the lower length of the second pitch-changing mechanism (501) is shorter than the lower length of the first pitch-changing mechanism (101).

2. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 1, characterized in that: A blank loading mechanism installation position (2) is provided in the middle of the longitudinal single track (4) for installing the blank loading mechanism of the bottle blowing machine; and a blank pushing mechanism (3) is fixedly provided on the side where the tail of the first transverse track (1) is connected to the head of the longitudinal single track (4).

3. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 2, characterized in that: The turning position of the longitudinal double track (9) is fixedly connected to a steering mechanism (8); and a blank pushing mechanism (3) is fixedly arranged on the outer side of the steering mechanism (8).

4. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 3, characterized in that: The blank pushing mechanism (3) comprises a blank pushing block (301), a blank pushing motor (302), a first rack (303), a fixed seat (304), a gear (305), a first connecting plate (306) and a third sliding guide rail (307); the fixed seat (304) is fixed on the bottle blowing machine frame, and the third sliding guide rail (307) is provided on the upper end thereof; the blank pushing motor (302) is fixedly connected to the fixed seat (304), and the output end thereof extends out of the fixed seat (304) and is connected to the fixed seat (304). The pusher block (301) is connected to the upper end of the fixed seat (304) through the third sliding guide rail (307); the end of the pusher block (301) away from the pusher motor (302) is fixedly connected to the upper end of the first connecting plate (306); the lower end of the first connecting plate (306) is fixedly connected to the upper end of the first rack (303); the lower end of the first rack (303) is meshingly connected to the gear (305).

5. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 1, characterized in that: A second transverse stepping mechanism (7) is provided below the second transverse track (5) for pushing the preform seat from the rear end of the longitudinal double track (9) into the second transverse track (5) transversely, so that the distance between two adjacent preform seats becomes larger through the second transverse track pitch change; A first transverse stepping mechanism (102) is provided below the first transverse track (1) for pushing the preform seat from the rear end of the mold clamping track (6) into the first transverse track (1) to reduce the distance between two adjacent preform seats.

6. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 5, characterized in that: The distance between two adjacent preform seats in a group after leaving the tail of the second transverse track (5) and before entering the first transverse track (1), i.e., on the mold closing track (6), is equal to the mold cavity distance; The distance between two adjacent bottle blank seats after entering the head of the longitudinal single track (4) and before leaving the longitudinal double track (9) is equal to the outer diameter of the bearing of the bottle blank seat.

7. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 3, characterized in that: The steering mechanism (8) comprises a turntable (806) for enabling the preform seat to be turned at the turning position of the longitudinal double track (9); It also includes a servo motor reducer (801), a support seat (802), a third reducer seat (803), a plurality of columns (804), a second connecting plate (805), a blank transfer track (807) and a blank seat (808); the servo motor reducer (801) is arranged at the lower part of the third reducer seat (803) and its output part passes through the third reducer seat (803); the lower part of the third reducer seat (803) is fixedly provided with the support seat (802) so as to be fixedly connected to the frame table; the upper surface of the third reducer seat (803) is fixedly connected to the lower surface of the blank transfer track (807) through a plurality of columns (804); the output end of the servo motor reducer (801) is transmission-connected to the turntable (806) through the second connecting plate (805); and the blank seat (808) is placed in the track of the turntable (806).

8. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 1, characterized in that: The mold closing track (6) is provided with a bottle lowering mechanism installation position on the outer side near the head end of the first transverse track (1), which is used for fixing and installing the bottle lowering mechanism.

9. The chain conveyor assembly for a one-outlet two-outlet bottle blowing machine according to claim 5, characterized in that: The first transverse stepping mechanism (102) comprises a first fixed plate (1021), a push seat (1022), a first sliding guide rail (1023), a servo motor (1024), a reducer (1025), a first gear (1026), a second rack (1027), a bolt roller (1028) and a first reducer seat (1029); the servo motor (1024) and the reducer (1025) are arranged on one side of the first fixed plate (1021) and the output end thereof passes through the part of the first fixed plate (1021) and is fixedly connected to the first gear (1026); two first sliding guide rails (1023) are arranged on the surface of the other side of the first fixed plate (1021), and the push seat (1022) is connected to the first gear (1026) through the first gear (1027). A sliding guide rail (1023) is slidably connected to the top of the first fixed plate (1021); the second rack (1027) is arranged between the two first sliding guide rails (1023), one end of the second rack (1027) is fixedly connected to the lower end of the push seat (1022), and the other end is meshed with the first gear (1026); the upper end of the servo motor (1024) is transmission-connected to the reducer (1025), and the reducer (1025) is fixedly connected to the lower surface of the first fixed plate (1021); the bolt roller (1028) is fixedly arranged on the upper surface of the first fixed plate (1021), and is arranged corresponding to the first gear (1026) to limit the second rack (1027) from deflection.

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