一种吹瓶机用拉伸封口结构
By using a servo motor to drive the sprocket system to slide the stretching seat, the problem of the existing stretching structure affecting the compactness of the blow molding machine is solved, and efficient transmission and stable operation are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU HUANGYAN HENGMEI PLASTIC MASCH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-17
AI Technical Summary
In existing blow molding machines, the rack protrudes from the lower support plate during the driving process, affecting the compactness of the structure.
The system employs a servo motor to drive the active sprocket, driven sprocket, and transmission chain. Through a power transmission block, the tensioning seat slides up and down, and the tensioning rod moves accordingly. This design occupies little space and does not affect the structural compactness.
This achieves improved transmission efficiency and operational stability without compromising the compactness of the blow molding machine structure.
Smart Images
Figure CN224510378U_ABST
Abstract
Claims
1. A stretch finish for a bottle blowing machine comprising a stretch support (1), a stretching mechanism (2) and a drive mechanism (3), characterized in that: The tension bracket (1) includes an upper support plate (11), a lower support plate (12) parallel to the lower part of the upper support plate (11), and a support side plate (13) connecting the upper support plate (11) and the lower support plate (12). The tension mechanism (2) is located on the front side of the support side plate (13). The tension mechanism (2) includes a tension seat (21) slidably disposed on the front side of the support side plate (13) in the vertical direction, and a tension rod (22) with its lower end fixed on the tension seat (21). The upper end of the tension rod (22) passes through the upper support plate (11). The side of the support side plate (13) is provided with a clearance through hole (4) arranged in the vertical direction. The driving mechanism (3) Located on the rear side of the support side plate (13), the drive mechanism (3) includes a servo motor (31) fixedly installed at the lower rear end of the support side plate (13), a drive sprocket (32) fixedly installed at the output end of the servo motor (31), a driven sprocket (33) rotatably installed at the upper rear end of the support side plate (13), a transmission chain (34) sleeved between the drive sprocket (32) and the driven sprocket (33), and a power transmission block (35) fixedly installed on the transmission chain (34) at its rear end. The front end of the power transmission block (35) passes through the clearance hole (4) and is connected to the tension seat (21) to drive the tension seat (21) to slide up and down.
2. A stretch finish for a bottle blowing machine according to claim 1, characterized in that: The power transmission block (35) includes two symmetrically arranged transmission pressure plates (351) and a plurality of connecting rods (352) arranged in parallel between the two transmission pressure plates (351). The longitudinal section of the transmission pressure plate (351) is inverted L-shaped, and the connecting rods (352) pass through the holes of the transmission chain (34).
3. A stretch finish for a bottle blowing machine according to claim 2, characterized in that: The conductive pressure plate (351) has a mounting through hole (5) on its side. The end of the connecting rod (352) passes through the mounting through hole (5). The end of the connecting rod (352) is threadedly connected to a limit nut (353). The limit nut (353) is used to abut against the outer sidewall of the conductive pressure plate (351).
4. A stretch finish for a bottle blowing machine according to claim 3, characterized in that: A rubber buffer plate (354) is provided on the inner side of the conductive pressure plate (351). The rubber buffer plate (354) has a connecting through hole (6). The connecting rod (352) passes through the connecting through hole (6). The conductive pressure plate (351) presses and fixes the rubber buffer plate (354) to the transmission chain (34).
5. A stretch finish for a bottle blowing machine according to claim 4, characterized in that: The connecting through hole (6) has a coaxially formed inserting ring groove (7) in the middle, and a supporting ring (8) is embedded in the inserting ring groove (7). The inner diameter of the supporting ring (8) is smaller than the diameter of the connecting through hole (6), and the connecting rod (352) is slidably disposed in the inner hole of the supporting ring (8).
6. A stretch finish for a bottle blowing machine as defined in claim 2, wherein: The front end of the conductive pressure plate (351) is vertically provided with a connecting extension plate (355) for connecting the tension seat (21), and a reinforcing rib (356) is provided between the conductive pressure plate (351) and the connecting extension plate (355).
7. A stretch finish for a bottle blowing machine as defined in claim 1, wherein: The servo motor (31) is provided with shock-absorbing rubber seats (9) at the four corners of its lower end. The servo motor (31), the shock-absorbing rubber seats (9) and the lower support plate (12) are pressed and fixed together by threaded parts.