CN210590503U

CN210590503U - Extension and sealing linkage device of rotary bottle blowing machine

Info

Publication number: CN210590503U
Application number: CN201920246323.7U
Authority: CN
Inventors: 邹大群; 宋奎伟; 黄兵; 郭利民
Original assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Current assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2020-05-22
Anticipated expiration: 2029-02-27

Abstract

A linkage device for extending and sealing a rotary bottle blowing machine is characterized in that when a bottle blank needs to be stretched and sealed, a sliding component descends to drive a stretching rod to move downwards and also drive a positioning block to descend, a spring gradually and elastically returns along with the descending of the positioning block, a spring pressing sleeve can be pushed to descend, the spring pressing sleeve and a positioning hole are always kept in a fit state, a connecting rod is guaranteed to be kept still, after the spring completely returns to a natural state, the spring continuously slides downwards along with the sliding component, the positioning block and the spring pressing sleeve are separated, at the moment, under the mutual cooperation effect of the gravity of a lifting component and a linkage mechanism, the lifting component drives a sealing shaft to descend to a preset position, and a bottle is sealed, so that the bottle is prepared. Through the link gear, make promotion subassembly and the linkage of subassembly that slides, avoid using the cam subassembly, consequently, reduced the machining precision by a wide margin, reduced the processing degree of difficulty, made the processing cost reduce by a wide margin, still reduced operational environment's noise by a wide margin.

Description

Extension and sealing linkage device of rotary bottle blowing machine

Technical Field

The utility model relates to an extension and sealing linkage device of a rotary bottle blowing machine.

Background

The bottle blank is formed into the bottle through blank arranging, heating and blow molding processes, wherein in the blow molding process, stretching and sealing of the bottle blank are completed through a stretching unit and a cam assembly in a matching mode, the stretching unit is used for stretching the heated bottle blank to a preset length to enable the bottle to be better formed in a mold, and then the stretched bottle is sealed through a cam assembly to form the bottle.

At present, a stretching and sealing device in a blow molding process in a rotary bottle blowing machine includes a frame 100, a sliding assembly 101 capable of sliding up and down relative to the frame 100 is disposed on the frame 100, a vertically disposed stretching rod 102 is connected to the sliding assembly 101, a lifting assembly 103 capable of moving up and down relative to the frame 100 is further connected below the sliding assembly 101 and on the frame 100, a vertically downward sealing shaft 105 is disposed on the lifting assembly 103, the stretching rod 102 penetrates through the lifting assembly 103 and the sealing shaft 105 and then penetrates out from the bottom of the sealing shaft 105, a roller 104 is further disposed on the lifting assembly 103, a cam assembly is disposed on one side of the roller 104, the cam assembly includes cam slideways 106 symmetrically disposed up and down, and the roller 104 extends into between the upper cam slideways 106 and the lower cam slideways 106 and contacts with both the upper cam slideways and the lower cam slideways 106, as shown in fig.. When bottle blanks need to be stretched and sealed, the sliding assembly 101 moves downwards to drive the stretching rod 102 to move downwards so as to stretch the bottle blanks, then the roller 104 slides along the cam assembly, so that the sealing shaft 105 is driven to descend to seal the stretched bottles, after the preparation of the bottles is completed, the sliding assembly 101 ascends to drive the stretching rod 102 to ascend, and the roller 104 continues to slide along the cam assembly to drive the sealing shaft 105 to ascend. Because the lift of sealed axle 105 is realized through the cooperation of gyro wheel 104 and cam subassembly, and the cam subassembly processing degree of difficulty is big, and the machining precision requires highly, therefore the processing cost is very high, and the gyro wheel also more easily wears and teares in long-time slip process, and not only life is short, still causes sealed axle lift not in place easily, causes bottle shaping quality to reduce, and in addition, the noise is very big when the gyro wheel slides on the cam subassembly, seriously influences operational environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reduce the processing degree of difficulty, promote bottle shaping quality and reduce noise at work's extension and seal aggregate unit.

The utility model relates to an extension and sealing linkage device of a rotary bottle blowing machine, which comprises a frame, a sliding component which can move up and down relative to the frame is arranged on the frame, a stretching rod which is vertically arranged is connected on the sliding component, a lifting component which can move up and down relative to the frame is also connected below the sliding component, a vertical downward sealing shaft is arranged on the lifting component, the stretching rod penetrates through the lifting component and the sealing shaft and then penetrates out from the bottom of the sealing shaft, a linkage mechanism which enables the sealing shaft to lift along with the sliding component is arranged between the lifting component and the sliding component, the linkage mechanism comprises a connecting plate which is connected on the lifting component, a connecting rod is vertically connected on the connecting plate, a positioning block is arranged on the sliding component, a top plate is arranged at the top of the frame, and a spring pressing sleeve with an inner cavity is arranged below the positioning block and below the top plate, the connecting rod vertically runs through locating piece, spring pressure cover and roof in proper order and can slide from bottom to top relative location piece, spring pressure cover and roof from top to bottom, presses the cover to be equipped with the spring in the inner chamber of cover and on the connecting rod at the spring, is provided with the spring briquetting of connection on the connecting rod between spring pressure cover and roof, the bottom of spring briquetting stretches into in the inner chamber that the spring pressed the cover, the bottom of spring supports the inner chamber bottom surface at the spring pressure cover, and the subassembly that slides when not descending, the spring is in compression state, and the top of spring supports on the spring briquetting.

The utility model discloses an extension and seal linkage device of rotary bottle blowing machine, when needing tensile bottle embryo and sealing, the subassembly that slides descends, drive tensile pole and move down, still drive the locating piece simultaneously and descend, along with the decline of locating piece, the spring elastic recovery gradually, then can promote the spring and press the cover to descend, make spring press the cover and keep laminating state with the locating hole all the time, guarantee that the connecting rod keeps motionless, after the spring totally recovers the natural state, along with the continuation gliding of subassembly that slides, locating piece and spring press the cover to break away from, at this moment under the mutual mating action of the gravity of lifting assembly and linkage mechanism, make the lifting assembly drive the sealed axle and descend to preset position, and seal the bottle, in order to accomplish the preparation of bottle; then the subassembly that slides rises, drive tensile pole and reply home position, still drive the locating piece simultaneously and rise, after locating piece and the spring pressure cover on the connecting rod connect, the spring pressure cover rises along with the locating piece, simultaneously, promote the spring briquetting through the spring in the spring pressure cover and rise, so that the connecting rod drives the lifting unit, the sealed axle rises and replies home position, simultaneously under the effect of locating piece, the spring is compressed once more to the spring pressure cover, for next seal preparation, in addition, when the subassembly that slides rises and descends, owing to possess the spring, still can cushion link gear speed and dynamics of operation. Through the link gear, make promotion subassembly and the linkage of the subassembly that slides, avoid using the cam subassembly, therefore, the machining precision has been reduced by a wide margin, the processing degree of difficulty has been reduced, make the processing cost reduce by a wide margin, simultaneously, because the cooperation that no longer uses cam subassembly and gyro wheel realizes sealed axle along with the lift of promotion subassembly, consequently, operational environment's noise has been reduced by a wide margin, and realize promoting the subassembly through the link gear and the synchronous lift of the subassembly that slides, the problem that the wearing and tearing phenomenon that produces when having effectively avoided using the gyro wheel caused bottle shaping quality difference.

Drawings

Fig. 1 is a schematic diagram of a prior art structure.

Fig. 2 is a schematic structural diagram of a prior art cam assembly.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is the structural schematic diagram of the sliding assembly of the present invention in the non-working state.

Fig. 5 is the structural schematic diagram of the sliding assembly of the present invention in the working state.

Fig. 6 is a partially enlarged view of a portion a in fig. 4.

Detailed Description

An extension and sealing linkage device of a rotary bottle blowing machine is disclosed, as shown in figures 3 to 6, and comprises a frame 1, a sliding component 2 which can move up and down relative to the frame 1 is arranged on the frame 1, a stretching rod 3 which is vertically arranged is connected on the sliding component 2, a lifting component 4 which can move up and down relative to the frame 1 is also connected below the sliding component 2 and on the frame 1, a sealing shaft 5 which vertically faces downwards is arranged on the lifting component 4, the stretching rod 3 penetrates through the lifting component 4 and the sealing shaft 5 and then penetrates out from the bottom of the sealing shaft 5, a linkage mechanism which enables the sealing shaft 5 to lift along with the sliding component 2 is arranged between the lifting component 4 and the sliding component 2, the linkage mechanism comprises a connecting plate 6 which is connected on the lifting component 4, a connecting rod is vertically connected on the connecting plate 6, a positioning block 7 is arranged on the sliding component 2, and a top plate 8 is arranged on, the spring pressing sleeve 9 with the inner cavity is arranged below the positioning block 7 and below the top plate 8, the connecting rod vertically penetrates through the positioning block 7, the spring pressing sleeve 9 and the top plate 8 from bottom to top in sequence and can slide up and down relative to the positioning block 7, the spring pressing sleeve 9 and the top plate 8, a spring 10 is sleeved in the inner cavity of the spring pressing sleeve 9 and on the connecting rod, a spring pressing block 11 connected to the connecting rod is arranged between the spring pressing sleeve 9 and the top plate 8, the bottom end of the spring pressing block 11 extends into the inner cavity of the spring pressing sleeve 9, the bottom end of the spring 10 abuts against the bottom surface of the inner cavity of the spring pressing sleeve 9, the spring 10 is in a compression state when the sliding assembly 2 does not descend, and the top end of the spring 10 abuts against the spring pressing block 11. The sliding assembly 2, the lifting assembly 4, the stretching rod 3 and the sealing shaft 5 are all the prior art.

The connecting rod comprises a first connecting rod 12 and a second connecting rod 13, one end of the first connecting rod 12 is fixed on the connecting plate 6, one end of the second connecting rod 13 is fixed on the free end of the first connecting rod 12 through thread fit, and the spring pressing sleeve 9 is arranged on the second connecting rod 13. Since the link is long and inconvenient in processing, the link is divided into a combination of the first link 12 and the second link 13 to facilitate the processing of the link.

Still include support 14, support 14 vertically runs through roof 8, and second connecting rod 13 vertically runs through support 14 and can slide from top to bottom relatively support 14, through setting up support 14 to play the guide effect to spring 10 and second connecting rod 13, guarantee that second connecting rod 13 removes accurately.

A limiting plate 15 is sleeved on the first connecting rod 12, and the size of the limiting plate 15 is larger than that of the through hole on the spring pressing sleeve 9 but smaller than that of the through hole on the positioning block 7. Because the size of limiting plate 15 is less than the size of the through hole on locating block 7, therefore locating block 7 can not produce interference with limiting plate 15 when moving up and down, and because the size of limiting plate 15 is greater than the size of the through hole on spring pressure sleeve 9, consequently, can not continue to descend again after spring pressure sleeve 9 descends to and contacts with limiting plate 15 to the scope that restriction spring pressure sleeve 9 descends.

The side wall of the spring pressing sleeve 9 is provided with a strip-shaped through hole 16, and a worker can conveniently observe the state of the spring 10 through the strip-shaped through hole 16.

The lower portion of the first connecting rod 12 is provided with a pair of nuts 17, after the first connecting rod 12 penetrates through the connecting plate 6, the two nuts 17 are respectively located on two sides of the connecting plate 6, and the two nuts 17 are screwed in opposite directions to fix the first connecting rod 12 on the connecting plate 6, so that the first connecting rod 12 can be conveniently disassembled and assembled.

Claims

1. The utility model provides an extension and seal aggregate unit of rotation type bottle blowing machine, includes frame (1), is provided with its subassembly (2) that slides that reciprocates relatively in frame (1), is connected with tensile pole (3) of vertical setting on the subassembly (2) that slides, still is connected with hoisting component (4) that can reciprocate relatively frame (1) in the below of subassembly (2) that slides and on frame (1), be provided with vertical decurrent sealed axle (5) on hoisting component (4), wear out its characterized in that by sealed axle (5) bottom after hoisting component (4) and sealed axle (5) are run through to tensile pole (3): a linkage mechanism which enables the sealing shaft (5) to ascend and descend along with the sliding component (2) is arranged between the lifting component (4) and the sliding component (2), the linkage mechanism comprises a connecting plate (6) connected to the lifting component (4), a connecting rod is vertically connected to the connecting plate (6), a positioning block (7) is arranged on the sliding component (2), a top plate (8) is arranged at the top of the rack (1), a spring pressing sleeve (9) with an inner cavity is arranged below the positioning block (7) and below the top plate (8), the connecting rod vertically penetrates through the positioning block (7), the spring pressing sleeve (9) and the top plate (8) from bottom to top in sequence and can slide up and down relative to the positioning block (7), the spring pressing sleeve (9) and the top plate (8), a spring (10) is sleeved in the inner cavity of the spring pressing sleeve (9) and on the connecting rod, and a spring pressing block (11) connected to the connecting rod is arranged between the spring pressing sleeve (9) and the top plate (8), the bottom end of the spring pressing block (11) extends into the inner cavity of the spring pressing sleeve (9), the bottom end of the spring (10) abuts against the bottom surface of the inner cavity of the spring pressing sleeve (9), the sliding assembly (2) is not lowered, the spring (10) is in a compression state, and the top end of the spring (10) abuts against the spring pressing block (11).

2. The extension and closure linkage device of the rotary bottle blowing machine according to claim 1, which is characterized in that: the connecting rod comprises a first connecting rod (12) and a second connecting rod (13), one end of the first connecting rod (12) is fixed on the connecting plate (6), one end of the second connecting rod (13) is fixed on the free end of the first connecting rod (12) through thread matching, and the spring pressing sleeve (9) is arranged on the second connecting rod (13).

3. The extension and closure linkage device of the rotary bottle blowing machine according to claim 2, characterized in that: the device is characterized by further comprising a support (14), wherein the support (14) vertically penetrates through the top plate (8), and the second connecting rod (13) vertically penetrates through the support (14) and can slide up and down relative to the support (14).

4. The extension and closure linkage device of a rotary bottle blowing machine according to claim 2 or 3, characterized in that: a limiting plate (15) is sleeved on the first connecting rod (12), and the size of the limiting plate (15) is larger than that of a through hole in the spring pressing sleeve (9) but smaller than that of a through hole in the positioning block (7) by 2.

5. The extension and closure linkage device of the rotary bottle blowing machine according to claim 1, which is characterized in that: the side wall of the spring pressing sleeve (9) is provided with a strip-shaped through hole (16).

6. The linkage device for extending and sealing of a rotary bottle blowing machine according to any one of claims 2-3, wherein: the lower portion of the first connecting rod (12) is provided with a pair of nuts (17), after the first connecting rod (12) penetrates through the connecting plate (6), the two nuts (17) are respectively located on two sides of the connecting plate (6), and the first connecting rod (12) is fixed on the connecting plate (6) through screwing the two nuts (17) in opposite directions.

7. The extension and closure linkage device of the rotary bottle blowing machine according to claim 4, wherein: the lower portion of the first connecting rod (12) is provided with a pair of nuts (17), after the first connecting rod (12) penetrates through the connecting plate (6), the two nuts (17) are respectively located on two sides of the connecting plate (6), and the first connecting rod (12) is fixed on the connecting plate (6) through screwing the two nuts (17) in opposite directions.