Bottle blank positioning device for bottle blowing machine

Abstract

The utility model provides a bottle blank positioning device for a bottle blowing machine, which comprises a mounting plate, a mounting seat arranged at the upper end of the mounting plate and a positioning claw arranged on the side wall of the mounting seat, a connecting column is arranged on the side wall of the mounting seat, the positioning claw is rotatably sleeved on the outer side of the connecting column through a bearing, a mounting table is arranged on the side wall of the mounting seat, and the mounting table is arranged on the mounting seat. The side wall of the mounting table is flush with the side wall of the positioning claw, a first mounting shaft is arranged on the side wall of the mounting table, a second mounting shaft is arranged on the side wall of the positioning claw, and the two ends of the spring are rotationally arranged on the first mounting shaft and the second mounting shaft in a sleeving mode respectively. The positioning claw is rotationally connected with the connecting column through the bearing, abrasion is small in the using process, the positioning device has the long service life, the two ends of the spring are rotationally connected to the first mounting shaft and the second mounting shaft respectively, and therefore abrasion generated in the using process of the positioning device can be further reduced, and the service life of the positioning device is prolonged. And the service life of the positioning device is further prolonged.

Description

Technical Field

[0001] The utility model relates to spare parts for a bottle blowing machine, in particular to a preform positioning device for the bottle blowing machine. Background Art

[0002] Currently, a Chinese patent application with the publication number CN215750697U discloses a bottle preform positioning mechanism for a bottle blowing machine, comprising a mounting platform, a mounting seat disposed at the upper end of the mounting platform, a positioning claw rotatably connected to the side wall of the mounting seat, the upper end of the positioning claw being adapted to engage a positioning notch in the bottle mouth, and a drive assembly disposed at the lower end of the positioning claw, the drive assembly being adapted to push the positioning claw so that the upper end of the positioning claw abuts against the side wall of the bottle mouth. The drive assembly comprises a spring 1 disposed at the upper end of the mounting platform and a retaining plate disposed at the upper end of the spring 1. During use, the spring 1, through its elastic force, pushes the retaining plate against the lower end of the positioning claw, so that the upper end of the positioning claw abuts against the side wall of the bottle mouth. However, during use of the positioning mechanism, due to the small contact area between the positioning claw and the retaining plate, the positioning claw applies a large pressure to the retaining plate during rotation, causing the retaining plate to wear or even break easily, resulting in a short service life for the positioning mechanism. Summary of the Invention

[0003] In view of this, an object of the present invention is to provide a preform positioning device for a bottle blowing machine, which has the advantage of a long service life.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a bottle blank positioning device for a bottle blowing machine, comprising a mounting plate, a mounting seat arranged at the upper end of the mounting plate, and a positioning claw arranged at the side wall of the mounting seat, a connecting column is provided at the side wall of the mounting seat, and the positioning claw is rotatably sleeved on the outside of the connecting column through a bearing, a mounting platform is provided at the side wall of the mounting seat, the side wall of the mounting platform is flush with the side wall of the positioning claw, a mounting shaft 1 is provided at the side wall of the mounting platform, and a mounting shaft 2 is provided at the side wall of the positioning claw, and also includes a spring, the two ends of the spring are rotatably sleeved on the mounting shaft 1 and the mounting shaft 2 respectively, and the spring drives the upper end of the positioning claw to rotate toward the side of the bottle blank through elastic force.

[0005] With the above technical solution, when the preform moves to face the left and right sides of the positioning claw, if the positioning notch is not aligned with the upper end of the positioning claw, the spring uses elastic force to force the upper end of the positioning claw against the outer wall of the preform. If the positioning notch is aligned with the upper end of the positioning claw, the spring uses elastic force to force the upper end of the positioning claw into the positioning notch, thereby limiting the position of the preform. The side walls of the mounting platform are flush with the side walls of the positioning claw. Thus, the spring installed between the mounting platform and the positioning claw is less prone to twisting and can stably provide elastic force to the positioning claw. The positioning claw is rotatably connected to the connecting column via a bearing, resulting in less wear during use, which gives the positioning device a longer service life. The two ends of the spring are rotatably connected to the first and second mounting shafts, respectively, thereby reducing the wear of the positioning device during use and further increasing its service life.

[0006] Preferably, a stopper 1 is provided on the side wall of the mounting seat, and the stopper 1 is located between the positioning claw and the mounting platform. When the upper end of the positioning claw is inserted into the positioning notch outside the bottle blank, the positioning claw conflicts with the stopper 1.

[0007] With the above technical solution, when the upper end of the positioning claw is clamped into the positioning notch outside the bottle blank, the positioning claw and the stopper abut against each other, thereby preventing the positioning claw from exerting excessive pressure on the positioning notch and causing deformation of the bottle blank.

[0008] Preferably, a second stopper is provided on the side wall of the mounting seat, and the second stopper is located on the side of the positioning claw away from the first stopper. When the bottle blank and the positioning claw are misaligned left and right, the spring drives the positioning claw to contact the second stopper through elastic force.

[0009] With the above technical solution, when the bottle blank and the positioning claw are misaligned left and right, the spring drives the positioning claw to contact the second stopper through elastic force, thereby avoiding the situation where the positioning claw rotates too much and the bottle blank cannot move to the left and right relative to the positioning claw.

[0010] Preferably, a buffer pad is adhered to a side of the first stopper close to the positioning claw and a side of the second stopper close to the positioning claw.

[0011] Through the above technical solution, the buffer pad can not only play a buffering role during the rotation of the positioning claw, but also protect the positioning claw, the first stopper and the second stopper.

[0012] Preferably, the connecting column includes a connecting portion and a limiting portion, one end of the connecting portion is fixedly connected to the mounting seat, a threaded hole is provided at the center of the other end of the connecting portion, a mounting column is provided at the center of the end of the limiting portion, the end of the mounting column is threadedly connected to the threaded hole, the bearing sleeve is arranged on the outside of the mounting column, and the two ends of the inner ring of the bearing are respectively pressed against the connecting portion and the limiting portion.

[0013] The above technical solution makes the connecting column composed of a connecting portion and a limiting portion easier to install and remove the bearing. The connecting portion and the limiting portion respectively abut against the ends of the inner ring of the bearing to limit the bearing and prevent axial movement.

[0014] Preferably, two rubber pads are sleeved on the outer side of the mounting column, and the two rubber pads are respectively arranged on both sides of the bearing.

[0015] Through the above technical solution, two rubber pads are arranged on both sides of the bearing to protect the bearing and the connecting column.

[0016] Preferably, the positioning claw includes a rotating part and a positioning part, the rotating part is fixedly sleeved on the outside of the bearing, a T-shaped mounting groove is provided at the upper end of the rotating part, and a T-shaped mounting block is provided on the side wall of the positioning part, and the T-shaped mounting block is clamped in the T-shaped mounting groove.

[0017] Through the above technical solution, the T-shaped mounting groove and the T-shaped mounting block cooperate with each other, making the disassembly and assembly of the rotating part and the positioning part more convenient.

[0018] Preferably, a countersunk hole is provided on the side wall of the T-shaped mounting slot, and the countersunk hole is perpendicular to the T-shaped mounting slot. A connecting screw is provided in the countersunk hole, and the connecting screw is threadedly connected to the rotating part to press and fix the positioning part to the rotating part.

[0019] With the above technical solution, the connecting screw can improve the connection stability between the rotating part and the positioning part. The connecting screw is received in the countersunk hole and is not likely to hinder the positioning process of the bottle blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment;

[0021] Figure 2 for Figure 1 A magnified view of part A;

[0022] Figure 3 It is a partial cross-sectional view of an embodiment.

[0023] Figure markings: 1. Mounting plate; 2. Mounting seat; 3. Positioning claw; 31. Rotating part; 32. Positioning part; 4. Connecting column; 41. Connecting part; 42. Limiting part; 5. Bearing; 6. Mounting platform; 7. Mounting shaft one; 8. Mounting shaft two; 9. Spring; 10. Stop block one; 11. Stop block two; 12. Buffer pad; 13. Threaded hole; 14. Mounting column; 15. Rubber pad; 16. T-type mounting slot; 17. T-type mounting block; 18. Countersunk hole; 19. Connecting screw. Implementation Method

[0024] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0025] A preform positioning device for a bottle blowing machine, such as Figures 1 to 3 As shown, the mounting plate comprises a mounting plate 1, a mounting base 2 disposed at the upper end of the mounting plate 1, and a positioning claw 3 disposed on the side wall of the mounting base 2. A connecting column 4 is disposed on the side wall of the mounting base 2, and the positioning claw 3 is rotatably mounted on the outer side of the connecting column 4 via a bearing 5. A mounting platform 6 is disposed on the side wall of the mounting base 2, and the side wall of the mounting platform 6 is flush with the side wall of the positioning claw 3. A mounting shaft 1 7 is disposed on the side wall of the mounting base 6, and a mounting shaft 2 8 is disposed on the side wall of the positioning claw 3. A spring 9 is also included, with its ends rotatably mounted on the mounting shaft 1 7 and the mounting shaft 2 8, respectively. The spring 9, through its elastic force, drives the upper end of the positioning claw 3 to rotate toward the bottle preform.

[0026] A stopper 10 is provided on the sidewall of mounting base 2, located between positioning claw 3 and mounting platform 6. When the upper end of positioning claw 3 engages the positioning notch on the outside of the preform, positioning claw 3 and stopper 10 come into contact. A second stopper 11 is also provided on the sidewall of mounting base 2, located on the side of positioning claw 3 away from stopper 10. When the preform and positioning claw 3 are misaligned, the spring 9 forces positioning claw 3 to contact stopper 11. Cushioning pads 12 are bonded to both the side of stopper 10 near positioning claw 3 and the side of stopper 11 near positioning claw 3.

[0027] Connecting post 4 includes a connecting portion 41 and a limiting portion 42. One end of connecting portion 41 is fixedly connected to mounting base 2. A threaded hole 13 is defined at the center of the other end of connecting portion 41. A mounting post 14 is provided at the center of the end of limiting portion 42. The end of mounting post 14 is threadedly connected to threaded hole 13. Bearing 5 is sleeved on the outside of mounting post 14, with the inner ring of bearing 5 abutting against connecting portion 41 and limiting portion 42, respectively. Two rubber pads 15 are sleeved on the outside of mounting post 14, one on each side of bearing 5.

[0028] The positioning claw 3 includes a rotating portion 31 and a positioning portion 32. The rotating portion 31 is fixedly mounted on the outer side of the bearing 5. A T-shaped mounting slot 16 is formed at the upper end of the rotating portion 31. A T-shaped mounting block 17 is provided on the side wall of the positioning portion 32. The T-shaped mounting block 17 is clamped in the T-shaped mounting slot 16. A countersunk hole 18 is provided on the side wall of the T-shaped mounting slot 16. The countersunk hole 18 is perpendicular to the T-shaped mounting slot 16. A connecting screw 19 is provided in the countersunk hole 18. The connecting screw 19 is threadedly connected to the rotating portion 31 to press and fix the positioning portion 32 to the rotating portion 31.

[0029] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementation methods. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A preform positioning device for a bottle blowing machine, comprising a mounting plate (1), a mounting seat (2) arranged at the upper end of the mounting plate (1), and a positioning claw (3) arranged on the side wall of the mounting seat (2), wherein: A connecting column (4) is provided on the side wall of the mounting seat (2), and the positioning claw (3) is rotatably sleeved on the outer side of the connecting column (4) through a bearing (5). A mounting platform (6) is provided on the side wall of the mounting seat (2), and the side wall of the mounting platform (6) is flush with the side wall of the positioning claw (3). A mounting shaft 1 (7) is provided on the side wall of the mounting platform (6), and a mounting shaft 2 (8) is provided on the side wall of the positioning claw (3). A spring (9) is also included, and the two ends of the spring (9) are rotatably sleeved on the mounting shaft 1 (7) and the mounting shaft 2 (8) respectively. The spring (9) drives the upper end of the positioning claw (3) to rotate toward the side of the bottle blank through elastic force.

2. The preform positioning device for a bottle blowing machine according to claim 1, characterized in that: A stopper (10) is provided on the side wall of the mounting seat (2), and the stopper (10) is located between the positioning claw (3) and the mounting platform (6). When the upper end of the positioning claw (3) is inserted into the positioning notch on the outside of the bottle blank, the positioning claw (3) and the stopper (10) come into conflict.

3. The preform positioning device for a bottle blowing machine according to claim 2, characterized in that: A second stopper (11) is provided on the side wall of the mounting seat (2), and the second stopper (11) is located on the side of the positioning claw (3) away from the first stopper (10). When the bottle blank and the positioning claw (3) are misaligned left and right, the spring (9) drives the positioning claw (3) to contact the second stopper (11) through elastic force.

4. The preform positioning device for a bottle blowing machine according to claim 3, characterized in that: A buffer pad (12) is adhered to the side of the first stopper (10) close to the positioning claw (3) and the side of the second stopper (11) close to the positioning claw (3).

5. The preform positioning device for a bottle blowing machine according to claim 1, characterized in that: The connecting column (4) includes a connecting portion (41) and a limiting portion (42), one end of the connecting portion (41) is fixedly connected to the mounting seat (2), a threaded hole (13) is provided at the center of the other end of the connecting portion (41), a mounting column (14) is provided at the center of the end of the limiting portion (42), the end of the mounting column (14) is threadedly connected to the threaded hole (13), the bearing (5) is sleeved on the outside of the mounting column (14), and the two ends of the inner ring of the bearing (5) are respectively pressed against the connecting portion (41) and the limiting portion (42).

6. The preform positioning device for a bottle blowing machine according to claim 5, characterized in that: Two rubber pads (15) are sleeved on the outer side of the mounting column (14), and the two rubber pads (15) are respectively arranged on both sides of the bearing (5).

7. The preform positioning device for a bottle blowing machine according to claim 1, characterized in that: The positioning claw (3) comprises a rotating portion (31) and a positioning portion (32); the rotating portion (31) is fixedly sleeved on the outside of the bearing (5); a T-shaped mounting groove (16) is provided at the upper end of the rotating portion (31); a T-shaped mounting block (17) is provided on the side wall of the positioning portion (32); and the T-shaped mounting block (17) is clamped in the T-shaped mounting groove (16).

8. The preform positioning device for a bottle blowing machine according to claim 7, characterized in that: A countersunk hole (18) is provided on the side wall of the T-shaped mounting groove (16), and the countersunk hole (18) is perpendicular to the T-shaped mounting groove (16). A connecting screw (19) is provided in the countersunk hole (18), and the connecting screw (19) is threadedly connected to the rotating part (31) to press and fix the positioning part (32) to the rotating part (31).

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