A bottle outlet device of a bottle blowing machine
By designing a combined motion of a rotating shaft and a plate-type bottle ejection fork, the problems of high cost and complex maintenance of the gripper cylinder were solved, achieving low-cost and easy-to-maintain automated bottle ejection operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUANGYAN RUIYING MASCH CO LTD
- Filing Date
- 2025-06-28
- Publication Date
- 2026-05-29
Smart Images

Figure CN224296558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a blow molding machine, specifically a bottle dispensing device for a blow molding machine. Background Technology
[0002] To achieve fully automated bottle blowing, an automatic bottle unloading device is used after the bottle blowing process is completed to transfer and unload the bottles. Currently, existing automatic bottle unloading devices generally use gripper cylinders. Gripper cylinders have relatively high precision, are expensive, and have stringent environmental requirements, resulting in high maintenance and repair costs. If maintenance is not timely, the gripper cylinder can easily be damaged. Utility Model Content
[0003] To address the aforementioned problems, this utility model designs a bottle dispensing device for a blow molding machine, which adopts a simple mechanical plate fork combined with a rotating structure, and features cost-effectiveness, fast bottle dispensing speed, and simple post-maintenance.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A bottle ejection device for a blow molding machine is characterized by comprising a lifting mechanism and a lifting platform mounted on the lifting mechanism. A horizontally arranged rotating shaft is mounted on the lifting platform. A reciprocating and extendable feeding mechanism is provided on one side of the rotating shaft. A plate-type bottle ejection fork is mounted at the front end of the feeding mechanism. A row of fork openings is arranged horizontally at intervals on the outer side of the bottle ejection fork. The opening size of the fork opening is larger than the minimum outer diameter of the bottle mouth but smaller than the outer diameter of the retaining ring of the bottle mouth. An elastic buckle is provided on one side of the opening of each fork opening, and a part of the elastic buckle extends into the opening position of the fork opening.
[0006] More specifically, the aforementioned lifting mechanism includes a mounting plate, on which a lifting cylinder is provided, and the top end of the cylinder rod of the lifting cylinder is fixedly connected to the bottom of the lifting platform.
[0007] More specifically, guide columns are provided on both sides of the lifting cylinder between the mounting plate and the lifting platform. The upper end of the guide column is fixedly connected to the lifting platform, and the lower end of the guide column passes through the mounting plate guide bushing on the mounting plate and is movably connected to it.
[0008] More specifically, the aforementioned lifting platform includes a base plate and two spaced-apart side plates, with the rotating shaft disposed between the two side plates. One end of the rotating shaft passes through the corresponding side plate and is connected to a rotating cylinder.
[0009] More specifically, the aforementioned feeding mechanism includes a feeding cylinder, the cylinder body of which is fixed on a rotating shaft, and the top of the cylinder rod of the feeding cylinder is connected to the bottle-dispensing fork.
[0010] More specifically, the aforementioned feeding mechanism has a feeding guide post on each side of the feeding cylinder. The front end of the feeding guide post is fixedly connected to the bottle outlet fork, and the rear end of the feeding guide post is movably connected to the rotating shaft guide bushing on the rotating shaft.
[0011] The bottle dispensing device designed in this utility model combines the rotational motion of the rotating shaft and the telescopic motion of the plate-type bottle dispensing fork to realize the entire bottle dispensing operation. The entire bottle dispensing process includes six steps: rotating shaft rotation, bottle dispensing fork advance, lifting mechanism rise, rotating shaft reverse rotation, lifting mechanism descend, and bottle dispensing fork retract. By repeating the cycle in sequence, the automated continuous bottle dispensing operation can be realized.
[0012] The above design uses a rotating shaft combined with a plate-type bottle ejector fork for operation. Compared with a hand-claw cylinder, it has lower precision requirements and features cost-effectiveness, low requirements for working environment, and convenient maintenance. Attached Figure Description
[0013] Figure 1 A plan view of the present invention;
[0014] Figure 2 This utility model Figure 1 Top view;
[0015] Figure 3 This utility model Figure 1 The left view;
[0016] Figure 4 This utility model Figure 3 A plan view of the bottle fork after it has been rotated 180°;
[0017] Among them, 1—lifting mechanism, 11—mounting plate, 111—mounting plate guide bushing, 12—lifting cylinder, 121—lifting cylinder rod, 13—guide column, 2—lifting platform, 21—base plate, 22—side plate, 3—rotating shaft, 31—rotating cylinder, 4—feeding mechanism, 41—feeding cylinder, 411—feeding cylinder rod, 42—feeding guide column, 421—rotating shaft guide bushing, 5—bottle fork, 51—fork opening, 6—elastic buckle. Detailed Implementation
[0018] like Figure 1-4 As shown, a bottle discharging device for a blow molding machine includes a lifting mechanism 1 and a lifting platform 2 mounted on the lifting mechanism.
[0019] In this diagram, the lifting mechanism 1 includes a mounting plate 11, on which a lifting cylinder 12 is mounted. The top end of the cylinder rod 121 of the lifting cylinder is fixedly connected to the bottom of the lifting platform 2. During operation, the cylinder rod 121 of the lifting cylinder extends and retracts to drive the lifting platform 2 in a reciprocating up-and-down motion. In practice, the lifting cylinder 12 can also be replaced by a hydraulic cylinder, a screw drive mechanism, or a rack and pinion mechanism, as long as it can achieve the reciprocating up-and-down motion of the lifting platform 2.
[0020] To ensure the stability of the lifting platform 2 during its vertical movement, a guide post 13 is provided on each side of the lifting cylinder 12 between the mounting plate 11 and the lifting platform 2. The upper end of the guide post 13 is fixedly connected to the lifting platform 2, and the lower end of the guide post 13 passes through the mounting plate guide bushing 111 on the mounting plate 11 and is movably connected to it.
[0021] The lifting platform 2 is provided with a horizontally arranged rotating shaft 3. The lifting platform 2 includes a base plate 21 and two spaced-apart side plates 22. The rotating shaft 3 is located between the two side plates 22. One end of the rotating shaft 3 passes through the corresponding side plate 22 and is connected to a rotating cylinder 31. In operation, the rotating cylinder 31 drives the rotating shaft 3 to rotate 180° in both directions.
[0022] The rotating shaft 3 has a reciprocating and telescopic feeding mechanism 4 on one side, and a plate-type bottle fork 5 is installed at the front end of the feeding mechanism 4.
[0023] In this diagram, the feeding mechanism 4 includes a feeding cylinder 41, the cylinder body of which is fixed on the rotating shaft 3. The top of the cylinder rod 411 of the feeding cylinder is connected to the bottle dispensing fork 5. During operation, the cylinder rod 411 of the feeding cylinder extends and retracts to drive the bottle dispensing fork 5 to move forward and backward. In practice, the feeding cylinder 41 can also be replaced by a hydraulic cylinder, a screw drive mechanism, or a rack and pinion mechanism, as long as it can realize the reciprocating forward and backward movement of the bottle dispensing fork 5.
[0024] Similarly, to ensure the stability of the bottle fork 5 during its forward and backward movement, the feeding mechanism 4 is provided with a feeding guide post 42 on each side of the feeding cylinder 41. The front end of the feeding guide post 42 is fixedly connected to the bottle fork 5, and the rear end of the feeding guide post 42 is movably connected to the rotating shaft guide bushing 421 in the rotating shaft 3.
[0025] The outer side of the bottle-dispensing fork 5 is provided with a row of forks 51 arranged laterally. The forks 51 can be equally or unequally spaced. The opening size of the fork 51 is larger than the minimum outer diameter of the bottle mouth but smaller than the outer diameter of the retaining ring of the bottle mouth. Each fork 51 has an elastic buckle 6 with a rounded free end on one side. A part of the elastic buckle 6 extends into the opening of the fork 51 to limit the bottle mouth entering the fork 51 and prevent the bottle from falling off as the bottle-dispensing fork 5 rotates.
[0026] In summary, the bottle dispensing device designed in this utility model combines the rotational motion of the rotating shaft 3 and the telescopic motion of the plate-type bottle dispensing fork 5 to achieve the entire bottle dispensing operation. The entire bottle dispensing process includes the following steps:
[0027] 1. The rotating shaft 3 drives the bottle fork 5 to rotate 180° toward the blowing track;
[0028] 2. When the feeding mechanism 4 moves, it drives the bottle fork 5 to move forward, causing the bottle mouth of the bottle in the blowing track to squeeze the elastic buckle 6 and enter the fork 51. After the feeding is in place, the elastic buckle 6 resets and pops out to lock the bottle mouth.
[0029] 3. The lifting mechanism 1 is activated, causing the bottle fork 5 to rise synchronously with the finished bottles, so that the bottle mouths of each finished bottle are separated from the preform holder of the blowing track.
[0030] 4. The operation of the rotary cylinder 31 drives the rotary shaft 3 to rotate in the opposite direction, causing the bottle fork 5 to rotate synchronously in the opposite direction by 180° with the bottle, so that the bottle changes from an inverted state to an upright state.
[0031] 5. The lifting mechanism 1 descends and resets, so that the bottle enters the bottle outlet connecting mechanism in an upright state, and the connecting mechanism temporarily fixes the bottle in place.
[0032] 6. Finally, the bottle fork 5 retracts, separating it from the bottle openings. This process continues until the bottle fork returns to its initial position, completing one bottle dispensing operation and preparing for the next dispensing action.
[0033] By repeating the above steps in sequence, the automatic continuous bottle output operation of the blow molding machine can be achieved.
[0034] In summary, this utility model design uses a rotating shaft 3 combined with a plate-type bottle-dispensing fork 5 for operation. Compared with a hand-claw cylinder, it has lower precision requirements and features cost-effectiveness, low requirements for working environment, and convenient maintenance.
[0035] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A bottle discharging device for a blow molding machine, characterized in that: It includes a lifting mechanism (1) and a lifting platform (2) set on the lifting mechanism. A horizontally arranged rotating shaft (3) is provided on the lifting platform (2). A reciprocating and telescopic feeding mechanism (4) is provided on one side of the rotating shaft (3). A plate-type bottle fork (5) is installed at the front end of the feeding mechanism (4). A row of forks (51) is arranged horizontally at intervals on the outer side of the bottle fork (5). The opening size of the fork (51) is larger than the minimum outer diameter of the bottle mouth and smaller than the outer diameter of the retaining ring of the bottle mouth. Each fork (51) has an elastic buckle (6) on one side of its opening. A part of the elastic buckle (6) extends into the opening position of the fork (51).
2. The bottle outlet device of a blow molding machine as described in claim 1, characterized in that: The lifting mechanism (1) includes a mounting plate (11), and the mounting plate (11) is provided with a lifting cylinder (12). The top end of the cylinder rod (121) of the lifting cylinder is fixedly connected to the bottom of the lifting platform (2).
3. The bottle outlet device of a blow molding machine as described in claim 2, characterized in that: The mounting plate (11) and the lifting platform (2) are provided with guide columns (13) on both sides of the lifting cylinder (12). The upper end of the guide column (13) is fixedly connected to the lifting platform (2), and the lower end of the guide column (13) passes through the mounting plate guide bushing (111) on the mounting plate (11) and is movably connected to it.
4. The bottle outlet device of a blow molding machine as described in claim 1, characterized in that: The lifting platform (2) includes a base plate (21) and two spaced side plates (22). The rotating shaft (3) is located between the two side plates (22). One end of the rotating shaft (3) passes through the corresponding side plate (22) and is connected to the rotating cylinder (31).
5. A bottle outlet device for a blow molding machine as described in any one of claims 1-4, characterized in that: The feeding mechanism (4) includes a feeding cylinder (41), the cylinder body of which is fixed on the rotating shaft (3), and the top of the cylinder rod (411) of the feeding cylinder is connected to the bottle fork (5).
6. The bottle outlet device of a blow molding machine as described in claim 5, characterized in that: The feeding mechanism (4) has a feeding guide post (42) on each side of the feeding cylinder (41). The front end of the feeding guide post (42) is fixedly connected to the bottle fork (5), and the rear end of the feeding guide post (42) is movably connected to the rotating shaft guide bushing (421) on the rotating shaft (3).