Bottle preform arranging device and plastic bottle production line
By introducing dislocation partition assembly and rail-changing and diverting assembly into the bottle preform whole device, the problems of interference and inaccurate clamping during the bottle preform transportation are solved, and stable transportation and efficient production of bottle preforms are achieved.
Patent Information
- Application Number
- CN202421047274.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the prior art, the bottle preform is easily entered into the transport position at the same time during transportation, resulting in interference during clamping of the clamping cylinder, which may lead to deformation or clamping of the bottle preform, affecting the product pass rate and production quality.
A bottle preform whole device is designed, using a dislocation partition assembly and a rail-changing diversion assembly. The dislocation partition assembly drives the accommodating groove and the feeding track through the partition and the driving source, limiting the number of bottle preforms entering the fixed groove each time; the rail-changing diversion assembly distributes the bottle preforms to different feeding tracks through moving tracks and pushing the cylinder to distribute the bottle preforms to different feeding tracks.
Effectively prevent interference from clamping the preform when clamping the preform, ensure stable transportation and accurate clamping of the preform, and improve the product pass rate and production efficiency.
Smart Images

Figure CN222664688U_ABST
Abstract
Description
Technical Field
[0001] The technical solution relates to the technical field of bottle body processing equipment, and in particular to a bottle blank preparation device and a plastic bottle production line. Background Art
[0002] With the development of the times, machines and equipment have been able to replace manual work to complete the "glass blowing" process, so that the preforms can be formed into bottles that meet the designed dimensions. After being fired into preforms, the preforms need to be sent to the corresponding processing equipment in time to complete the processing process. Since the preforms can only be formed when they are kept within a certain temperature range, they need to be sent to the processing equipment in time for forming. In the process of sending the preforms to the corresponding processing equipment, it is often necessary to use a material handling device to send the preforms to the preset clamping position, so that the preforms at the clamping position can be sent to multiple processing equipment through the clamping cylinder to achieve the purpose of improving production efficiency.
[0003] The prior art still has the following deficiencies:
[0004] 1. The material handling device currently used to transport preforms usually allows the preforms to slide naturally along the feeding track and then enter the transfer position so that they can be clamped by the clamping cylinder. However, in this process, multiple preforms are likely to enter the transfer position at the same time, which will cause interference when the clamping cylinder performs the clamping action, easily leading to deformation of the preforms or the clamping cylinder being unable to clamp the preforms smoothly, affecting the product qualification rate and production quality.
[0005] 2. At present, many material handling devices will feed the preforms onto the same track to facilitate the clamping cylinder to clamp them. It is easy for the preforms to fail to enter the clamping position accurately, resulting in the clamping cylinder failing to accurately clamp the preforms when transferring the preforms, causing the preforms to be severely deformed. Summary of the invention
[0006] The purpose of the technical solution is to provide a bottle blank preparation device and a plastic bottle production line to improve the situation that the current clamping cylinder cannot accurately clamp the bottle blank when clamping the bottle blank located in the clamping position.
[0007] The purpose of this technical solution is achieved in this way:
[0008] A bottle blank material preparation device, which is used to transport bottle blanks, also includes:
[0009] At least one feeding track, which is arranged on the workbench;
[0010] A docking track connected to the upper end of the feeding track, and the docking track is used to feed the preforms into the feeding track;
[0011] A transfer assembly connected to the lower end of the feeding track, wherein the transfer assembly is provided with at least one fixing groove for fixing the preform, and the transfer assembly is used to deliver the preform to other equipment;
[0012] A dislocation partition assembly, which is used to limit the number of preforms entering the fixed groove to ensure a stable working state;
[0013] The dislocation partition assembly comprises:
[0014] At least one partition plate is disposed between the feeding track and the transfer assembly, and a plurality of receiving grooves are formed on the partition plate. When the receiving grooves are aligned with the lower end of the feeding track, the preforms can pass through the receiving grooves and enter the fixing grooves after leaving the feeding track;
[0015] A driving source 1 is used to drive the partition to move, so as to cause a misaligned movement between the accommodating groove and the feeding track.
[0016] Preferably, a track-changing and diverting assembly is further provided, and the track-changing and diverting assembly is arranged between the docking track and the feeding track, and the track-changing and diverting assembly is used to distribute the preforms on the docking track to different feeding tracks.
[0017] Preferably, the track-changing and flow-diverting assembly at least comprises:
[0018] Move track one;
[0019] Mobile track 2;
[0020] A moving plate, wherein the moving track 1 and the moving track 2 are arranged on the moving plate;
[0021] A push cylinder, one end of which is arranged on the workbench, and a push rod of the push cylinder is connected to the moving plate, so that the push cylinder can drive the moving plate to move;
[0022] The movable plate is also provided with a connecting plate, and the pushing cylinder is connected to the connecting plate;
[0023] The connecting plate is also provided with a sliding seat, the working support frame is also provided with a directional guide rail, and the sliding seat sleeve is arranged on the directional guide rail.
[0024] Preferably, the upper end surface of the partition is inclined; and the receiving groove can accommodate at least one bottle blank, and when the receiving groove is aligned with the fixing groove, the bottle blank located in the receiving groove can enter the fixing groove.
[0025] Preferably, a mounting rack is provided on the workbench, and a side of the mounting rack facing the feeding track is formed into a fixing groove;
[0026] The transport component comprises:
[0027] A clamping cylinder, the position of which corresponds to the position of the fixing groove, and the clamping cylinder is used to grab the bottle blank located in the fixing groove;
[0028] A rotating shaft, the clamping cylinder is sleeved on the rotating shaft, and the clamping cylinder can rotate around the rotating shaft;
[0029] A second driving source is connected to one end of the rotating shaft, and the second driving source is used to drive the rotating shaft to rotate.
[0030] Preferably, a limiting protrusion is formed at one end of the mounting frame facing the partition, and a limiting groove is formed at a corresponding position of the partition, the limiting protrusion can be inserted into the limiting groove, and the limiting protrusion can move in the limiting groove.
[0031] Preferably, the upper end of the limiting protrusion protrudes into a supporting portion, and the supporting portion is used to abut against the upper inner wall of the limiting groove.
[0032] Preferably, the rotating shaft is arranged on a supporting frame, a fixing portion is arranged on the supporting frame, and one end of the rotating shaft passes through the fixing portion;
[0033] The second driving source is connected to the first pushing rod or the second pushing rod respectively, and the first pushing rod and the second pushing rod are respectively arranged on both sides of the rotating shaft;
[0034] A driving connecting rod is fixedly connected to the rotating shaft, so that the driving connecting rod can drive the rotating shaft to rotate;
[0035] The moving paths of the push rod 1 and the push rod 2 overlap with the rotation path of the driving connecting rod, so that the push rod 1 and the push rod 2 can push the driving connecting rod to drive the rotating shaft to rotate.
[0036] A plastic bottle production line comprises the bottle blank preparation device as described above.
[0037] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:
[0038] 1. In the technical solution, an offset partition assembly is provided to limit the number of preforms entering the fixing groove each time, so as to prevent the clamping cylinder from being interfered by additional preforms when the clamping cylinder performs the clamping action on the preforms located at the clamping position, thereby preventing the clamping claws of the clamping cylinder from being unable to normally clamp and fix the preforms located at the clamping position, thereby causing the preforms to fall or be severely deformed.
[0039] 2. By setting up the track-changing and diverting components, the preforms can flow into different fixed slots, thereby increasing the rate at which the transfer components transport the preforms, freeing up production constraints and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] Figure 1 It is a structural diagram of the first embodiment of the present technical solution;
[0041] Figure 2 This is a schematic diagram of the structure of the embodiment 1 of the technical solution after the workbench and the fixed structure thereon are removed;
[0042] Figure 3 for Figure 1 The enlarged view of point A in the middle;
[0043] Figure 4 It is a structural schematic diagram of the second embodiment of the present technical solution;
[0044] Figure 5 It is the main view of this technical solution;
[0045] Figure 6 for Figure 5 The enlarged view of point B in the middle;
[0046] Figure 7 This is a schematic diagram of the structure of the third embodiment of the technical solution and when the bottle blank is in the containing groove;
[0047] Figure 8 for Figure 2 Enlarged view of point C in the middle.
[0048] Reference numerals:
[0049] 1. Workbench; 11. Feeding track; 12. Docking track; 13. Work support; 14. Through hole; 15. Bottle blank; 16. Slide rail; 17. Stopper 1; 18. Stopper 2;
[0050] 2. Transfer assembly; 21. Gripper cylinder; 22. Rotating shaft; 23. Driving source 2; 231. Push rod 1; 232. Push rod 2; 233. Mounting seat; 234. Avoidance part; 24. Swing connecting rod; 25. Support frame; 26. Fixed part; 27. Driving connecting rod; 28. Balance block;
[0051] 3. Displacement partition assembly; 31. Partition; 32. Driving source 1; 33. Sliding seat; 34. Accommodating groove; 35. Limiting groove;
[0052] 4. Track-changing and diverting assembly; 41. Moving track 1; 42. Moving track 2; 43. Moving plate; 44. Pushing cylinder; 45. Pushing block; 46. Connecting plate; 47. Sliding seat; 48. Directional guide rail; 49. Guide rail seat;
[0053] 5. Mounting frame; 51. Limiting protrusion; 52. Supporting portion; 53. Fixing groove. DETAILED DESCRIPTION
[0054] The following are specific embodiments of the present technical solution, and the technical solution of the present technical solution is further described in conjunction with the accompanying drawings, but the present technical solution is not limited to these embodiments.
[0055] Embodiment 1:
[0056] like Figure 1-Figure 3 A bottle blank material handling device shown, which is used to transport bottle blanks 15, also includes:
[0057] At least one feeding track 11, which is arranged on the workbench 1;
[0058] A docking track 12, which is connected to the upper end of the feeding track 11, and the docking track 12 is used to feed the preform 15 into the feeding track 11;
[0059] A transfer assembly 2 connected to the lower end of the feeding track 11, the transfer assembly 2 is provided with at least one fixing groove 53 for fixing the preform 15, and the transfer assembly 2 is used to deliver the preform 15 to other equipment;
[0060] The offset partition assembly 3 is used to limit the number of bottle blanks 15 entering the fixed groove 53 to ensure a stable working state.
[0061] It is a common method of producing plastic bottles to heat the preform 15 and then blow-mold it to make a bottle body of a desired shape. In the process of transporting a large number of preforms 15 to the assembly line, the preforms 15 are usually allowed to slide down the feeding track 11, and after entering the bottom end of the feeding track 11, they are grabbed and moved by the transfer component 2.
[0062] By setting up the offset partition assembly 3, it can be ensured that only one bottle blank 15 enters the fixed groove 53 at a time, thereby effectively preventing the transfer assembly 2 from being disturbed by additional bottle blanks 15 during the grabbing process, ensuring the stability of the transportation of the bottle blanks 15 and reducing damage to the bottle blanks 15.
[0063] The dislocation partition assembly 3 comprises:
[0064] At least one partition 31 is disposed between the feeding track 11 and the transfer assembly 2, and a plurality of receiving grooves 34 are formed on the partition 31. When the receiving grooves 34 are aligned with the lower end of the feeding track 11, the preforms 15 can pass through the receiving grooves 34 and enter the fixing grooves 53 after leaving the feeding track 11;
[0065] The driving source 1 32 is used to drive the partition plate 31 to move, so as to generate a misaligned movement between the receiving groove 34 and the feeding track 11 .
[0066] When the partition 31 moves, the accommodating groove 34 is no longer aligned with the lower end of the feeding track 11, thereby preventing the bottle blanks 15 on the feeding track 11 from continuing to move downward, so that there is only one bottle blank 15 in the fixing groove 53, so as to facilitate accurate clamping of the transfer component 2.
[0067] like Figure 1-Figure 3 As shown, in this embodiment, a track-changing and diverting assembly 4 is also provided. The track-changing and diverting assembly 4 is arranged between the docking track 12 and the feeding track 11 . The track-changing and diverting assembly 4 is used to distribute the preforms 15 on the docking track 12 to different feeding tracks 11 .
[0068] Furthermore, the track-changing and diverting assembly 4 at least comprises:
[0069] Mobile track 1 41;
[0070] Mobile track II 42;
[0071] The moving plate 43, the moving track 1 41 and the moving track 2 42 are arranged on the moving plate 43;
[0072] One end of the push cylinder 44 is arranged on the workbench 1 , and a push rod of the push cylinder 44 is connected to the moving plate 43 through a push block 45 , so that the push cylinder 44 can drive the moving plate 43 to move.
[0073] A connecting plate 46 is also provided on the moving plate 43 , and the pushing cylinder 44 is connected to the connecting plate 46 , so that the pushing cylinder 44 can drive the moving plate 43 to move by driving the connecting plate 46 to move.
[0074] Specific as Figure 2 As shown, in this embodiment, three feeding tracks 11 are provided, and the docking track 12 and the middle feeding track 11 are on the same straight line.
[0075] When the second moving track 42 is aligned with the docking track 12, the preforms 15 on the second moving track 42 can smoothly enter the middle feeding track 11, and the first moving track 41 is aligned with the feeding track 11 on the left, so that the preforms 15 loaded on the first moving track 41 can enter the feeding track 11 on the left. Since the rate at which the preforms 15 enter through the docking track 12 is higher than the rate at which the transfer assembly 2 transports the preforms 15 from the single fixed groove 53, the preforms 15 will be accumulated on the second moving track 42 and the feeding track 11 docked therewith. The push cylinder 44 drives the second moving track 42 to move through the moving plate 43, so that the second moving track 42 is aligned with the feeding track 11 on the right, and the preforms 15 accumulated on the second moving track 42 are fed into the feeding track 11 on the right.
[0076] When the second moving track 42 is aligned with the feeding track 11 on the right, the first moving track 41 is aligned with the docking track 12, and the preforms 15 on the first moving track 41 can enter the middle feeding track 11. When the number of preforms 15 accumulated on the first moving track 41 is large enough, the pushing cylinder 44 will drive the moving plate 43 to reset again, so that the second moving track 42 is aligned with the docking track 12, and the first moving track 41 is aligned with the feeding track 11 on the left.
[0077] Therefore, when the push cylinder 44 drives the movable plate 43 to move, the purpose of feeding the bottle blanks 15 on the docking track 12 to the multiple feeding tracks 11 can be achieved, thereby improving the efficiency of transporting the bottle blanks to the conveyor belt without additionally setting up a gas supply device.
[0078] Furthermore, a stopper 17 is provided between the feeding tracks 11 to prevent the preforms 15 on the moving tracks 1 41 and 42 from sliding down when the moving tracks 1 41 and 42 move; a stopper 2 18 is provided between the moving tracks 1 41 and 42 to prevent the preforms 15 on the docking track 12 from sliding down when the moving tracks 1 41 and 42 move, thereby preventing the preforms 15 from falling off and being damaged, resulting in a waste of materials.
[0079] The workbench 1 is provided with a work support 13, the connecting plate 46 is further provided with a sliding seat 47, the work support 13 is provided with a directional guide rail 48, and the sliding seat 47 is sleeved on the directional guide rail 48. The directional guide rail 48 and the sliding seat 47 cooperate to ensure that the moving plate 43 can reciprocate in a straight line.
[0080] A through hole 14 is also formed on the working bracket 13 so that the directional guide rail 48 can be fixed on the upper end of the working bracket 13, and the docking track 12, the feeding track 11 and the movable plate 43 are arranged on the lower end of the working bracket to avoid the structure being too compact, so that the sliding seat 47 will not affect the movement of the bottle blank 15 when moving on the directional guide rail 48.
[0081] like Figure 1-Figure 3 As shown, a slide rail 16 is provided on the workbench 1, a slide seat 33 is provided on the slide rail 16, and a partition plate 31 is provided on the slide seat 33;
[0082] The driving source 32 is a push rod cylinder, and the end of the driving source 32 is connected to the slide 33, so that the driving source 32 can drive the slide 33 to move along the direction of the slide rail 16, thereby driving the partition 31 to perform reciprocating linear motion in a straight line.
[0083] like Figure 1-Figure 7As shown, the upper end surface of the partition 31 is inclined; and the accommodating groove 34 can accommodate at least one bottle blank 15. When the accommodating groove 34 is aligned with the fixing groove 53, the bottle blank 15 located in the accommodating groove 34 can enter the fixing groove 53, which is convenient for controlling the feeding situation.
[0084] like Figure 1-Figure 7 As shown, a mounting rack 5 is provided on the workbench 1, and a side of the mounting rack 5 facing the feeding track 11 is formed into a fixing groove 53, and each fixing groove 53 corresponds to the lower end of a feeding track 11. The staggered partition assembly 3 is matched so that only one preform 15 can be placed in each fixing groove 53 at the same time to facilitate transportation by the transfer assembly 2.
[0085] The transport component 2 includes:
[0086] A gripper cylinder 21, the position of which corresponds to the position of the fixing groove 53, and the gripper cylinder 21 is used to grab the preform 15 in the fixing groove 53;
[0087] A rotating shaft 22, the clamping jaw cylinder 21 is sleeved on the rotating shaft 22, and the clamping jaw cylinder 21 can rotate around the rotating shaft 22;
[0088] The second driving source 23 is connected to one end of the rotating shaft 22 , and the second driving source 23 is used to drive the rotating shaft 22 to rotate.
[0089] like Figure 1-Figure 7 As shown, a limiting protrusion 51 is formed at one end of the mounting frame 5 facing the partition 31 , and a limiting groove 35 is formed at a corresponding position of the partition 31 . The limiting protrusion 51 can be inserted into the limiting groove 35 , and the limiting protrusion 51 can move in the limiting groove 35 .
[0090] like Figure 1-Figure 7 As shown, the upper end of the limiting protrusion 51 is raised to form a supporting portion 52, which is used to abut against the upper inner wall of the limiting groove 35, thereby ensuring that the horizontal height of the partition 31 and the accommodating groove 34 is moderately higher than the fixing groove 53. When the accommodating groove 34 is aligned with the fixing groove 53, the bottle blank 15 in the accommodating groove 34 can naturally fall into the fixing groove 53.
[0091] like Figure 1-Figure 8 As shown, the rotating shaft 22 is disposed on the support frame 25, and a fixing portion 26 is disposed on the support frame 25, and one end of the rotating shaft 22 passes through the fixing portion 26;
[0092] The second driving source 23 is connected to the first pushing rod 231 or the second pushing rod 232 respectively, and the first pushing rod 231 and the second pushing rod 232 are respectively arranged on both sides of the rotating shaft 22;
[0093] A driving connecting rod 27 is fixedly connected to the rotating shaft 22, so that the driving connecting rod 27 can drive the rotating shaft to rotate;
[0094] The moving paths of the push rod 1 231 and the push rod 232 overlap with the rotation path of the driving connecting rod 27 , so that the push rod 1 231 and the push rod 232 can push the driving connecting rod 27 to drive the rotating shaft 22 to rotate.
[0095] A plastic bottle production line comprises the bottle blank preparation device as described above.
[0096] Embodiment 2:
[0097] like Figure 4-Figure 7 As shown, this embodiment is basically the same as the first embodiment, except that the present embodiment is provided with two docking tracks 12 and correspondingly provided with six feeding tracks 11.
[0098] The push cylinder 44 drives the two moving plates 43 and the moving track 1 41 and the moving track 2 42 thereon to move through the push block, thereby achieving more efficient feeding efficiency.
[0099] Embodiment three:
[0100] Specific as Figure 7 As shown, this embodiment is basically the same as the first embodiment, except that the partition plate 31 in this technical solution is a continuous whole.
[0101] The above embodiments are only preferred embodiments of the present technical solution, and are not intended to limit the protection scope of the present technical solution. Therefore, any equivalent changes made based on the structure, shape, and principle of the present technical solution should be included in the protection scope of the present technical solution.
Claims
1. A bottle blank unifying device, used for transporting bottle blanks (15), characterized in that: Also includes: At least one feeding track (11) arranged on the workbench (1); A docking track (12) connected to the upper end of the feeding track (11), the docking track (12) being used to feed the preform (15) into the feeding track (11); a transfer assembly (2) connected to the lower end of the feeding track (11), the transfer assembly (2) being provided with at least one fixing groove (53) for fixing the bottle blank (15), and the transfer assembly (2) being used to deliver the bottle blank (15) to other equipment; An offset partition assembly (3) for limiting the number of bottle blanks (15) entering the fixed groove (53) to ensure a stable working state; The dislocated partition assembly (3) comprises: at least one partition (31) disposed between the feeding track (11) and the transfer assembly (2), wherein a plurality of receiving grooves (34) are formed on the partition (31), and when the receiving grooves (34) are aligned with the lower end of the feeding track (11), the preform (15) can enter the fixed groove (53) through the receiving grooves (34) after leaving the feeding track (11); A driving source (32) is used to drive the partition (31) to move, so as to cause misalignment movement between the receiving groove (34) and the feeding track (11).
2. A bottle blank preparation device according to claim 1, characterized in that: A track-changing and diverting assembly (4) is also provided. The track-changing and diverting assembly (4) is provided between the docking track (12) and the feeding track (11). The track-changing and diverting assembly (4) is used to distribute the preforms (15) on the docking track (12) to different feeding tracks (11).
3. A bottle blank preparation device according to claim 2, characterized in that: The track-changing and flow-diverting assembly (4) comprises at least: Move track one (41); Mobile track two (42); A moving plate (43), wherein the moving track 1 (41) and the moving track 2 (42) are arranged on the moving plate (43); A pushing cylinder (44), one end of which is arranged on the workbench (1), and a push rod of the pushing cylinder (44) is connected to the moving plate (43), so that the pushing cylinder (44) can drive the moving plate (43) to move; The movable plate (43) is further provided with a connecting plate (46), and the pushing cylinder (44) is connected to the connecting plate (46); A sliding seat (47) is also provided on the connecting plate (46), and a directional guide rail (48) is also provided on the working bracket, wherein the sliding seat (47) is sleeved on the directional guide rail (48).
4. A preform material preparation device according to claim 2 or 3, characterized in that: The workbench (1) is provided with a slide rail (16), the slide rail (16) is provided with a slide seat (33), and the partition plate (31) is provided on the slide seat (33); The driving source one (32) is a push rod cylinder, and the end of the driving source one (32) is connected to the slide seat (33), so that the driving source one (32) can drive the slide seat (33) to move along the direction of the slide rail (16).
5. A preform material preparation device according to claim 4, characterized in that: The upper end surface of the partition (31) is inclined; and the accommodating groove (34) can accommodate at least one bottle blank (15); when the accommodating groove (34) is aligned with the fixing groove (53), the bottle blank (15) in the accommodating groove (34) can enter the fixing groove (53).
6. A preform shaping device according to claim 5, characterized in that: The workbench (1) is provided with a mounting frame (5), and a side of the mounting frame (5) facing the feeding track (11) is formed into a fixing groove (53); The transfer component (2) comprises: a gripper cylinder (21), the position of the gripper cylinder (21) corresponding to the position of the fixing groove (53), the gripper cylinder (21) being used to grasp the bottle blank (15) located in the fixing groove (53); A rotating shaft (22), the clamping claw cylinder (21) being sleeved on the rotating shaft (22), and the clamping claw cylinder (21) being capable of rotating around the rotating shaft (22); A second driving source (23) is connected to one end of the rotating shaft (22), and the second driving source (23) is used to drive the rotating shaft (22) to rotate.
7. A preform shaping device according to claim 6, characterized in that: A limiting protrusion (51) is formed at one end of the mounting frame (5) facing the partition (31), and a limiting groove (35) is formed at a corresponding position of the partition (31); the limiting protrusion (51) can be inserted into the limiting groove (35), and the limiting protrusion (51) can move in the limiting groove (35).
8. The bottle blank shaping device according to claim 7, characterized in that: The upper end of the limiting protrusion (51) is protruded to form a supporting portion (52), and the supporting portion (52) is used to abut against the upper inner wall of the limiting groove (35).
9. A bottle blank shaping device according to claim 8, characterized in that: The rotating shaft (22) is arranged on a support frame (25); a fixing portion (26) is arranged on the support frame (25); one end of the rotating shaft (22) passes through the fixing portion (26); The second driving source (23) is respectively connected to the first pushing rod (231) or the second pushing rod (232), and the first pushing rod (231) and the second pushing rod (232) are respectively arranged on both sides of the rotating shaft (22); A driving connecting rod (27) is fixedly connected to the rotating shaft (22), so that the driving connecting rod (27) can drive the rotating shaft (22) to rotate; The moving paths of the push rod 1 (231) and the push rod 2 (232) overlap with the rotation path of the drive connecting rod (27), so that the push rod 1 (231) and the push rod 2 (232) can push the drive connecting rod (27) to drive the rotating shaft (22) to rotate.
10. A plastic bottle production line, characterized in that: The invention comprises a bottle blank preparation device as claimed in any one of claims 1 to 9.