CN215791725U - Herringbone clamping plate adjusting structure of plastic film blowing equipment - Google Patents
Herringbone clamping plate adjusting structure of plastic film blowing equipment Download PDFInfo
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- CN215791725U CN215791725U CN202121760624.5U CN202121760624U CN215791725U CN 215791725 U CN215791725 U CN 215791725U CN 202121760624 U CN202121760624 U CN 202121760624U CN 215791725 U CN215791725 U CN 215791725U
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Abstract
A herringbone clamping plate adjusting structure of plastic film blowing equipment comprises a rack, a left clamping plate and a right clamping plate, wherein a front sliding rail and a rear sliding rail which transversely extend are further arranged on the rack; the front and the rear transmission chains are respectively provided with a chain wheel, and one chain wheel of the front transmission chain is connected with one chain wheel of the rear transmission chain by a longitudinal transmission shaft to synchronously rotate; the front left slide block is connected with the lower half section of the front transmission chain, the front right slide block is connected with the upper half section of the front transmission chain, the rear left slide block is connected with the lower half section of the rear transmission chain, and the rear right slide block is connected with the upper half section of the rear transmission chain. The utility model can keep the center line of the included angle of the herringbone clamping plate in the vertical direction perpendicular to the ground all the time in the adjusting process, and the adjusting process is convenient.
Description
Technical Field
The utility model belongs to the technical field of plastic film production equipment, and particularly relates to a herringbone clamping plate adjusting structure of plastic film blowing equipment.
Background
The plastic film may be produced by a plastic film blowing apparatus. The film blowing equipment is provided with an extrusion die head, the extrusion die head is provided with a circular ring-shaped extrusion opening, a herringbone clamping plate is arranged above the extrusion die head, and a traction clamping roller is fixedly arranged above the herringbone clamping plate. During production, the high-temperature molten resin material is extruded from a circular extrusion port of the extrusion die head to form a circular film bubble, the circular film bubble moves upwards and passes through the herringbone clamping plate to be gradually flattened, and the circular film bubble is compacted by the traction clamping roller to form a double-layer sheet film which is finally wound.
The herringbone clamping plate is formed by two clamping plates which are arranged in a herringbone mode, and the included angle of the herringbone clamping plate is required to be adjusted according to different specifications and sizes of blown films during production. In the prior art, the included angle is adjusted by arranging at least two cylinders or two horizontal adjusting screws on the rack, and each cylinder or horizontal adjusting screw correspondingly drives the lower end of one clamping plate to move, so that the inclination angle of the two clamping plates is changed, namely, the included angle of the herringbone clamping plates is adjusted.
However, the existing adjusting mode has the following defects: 1. the thrust action point of above-mentioned cylinder or horizontal adjusting screw is the vertical middle part of splint, but because it has the membrane bubble to separate between two splint, therefore the power between two splint lacks the linkage relation, when adjusting the contained angle of chevron shape splint, need adjust the inclination of two splint respectively, the adjustment process is troublesome, difficult angle of adjustment and the range symmetry that ensures to make two splint when adjusting two splint are the same moreover, lead to being difficult to ensure that the central line that makes chevron shape splint contained angle keeps for with ground vertically plumb direction, be difficult for keeping unanimous with membrane bubble central axis direction promptly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide a herringbone clamping plate adjusting structure of plastic film blowing equipment, which can keep the central line of the included angle of the herringbone clamping plate in the vertical direction perpendicular to the ground all the time in the adjusting process and is convenient and fast in the adjusting process.
The purpose can be realized according to the following scheme: a herringbone clamping plate adjusting structure of plastic film blowing equipment comprises a rack, a left clamping plate and a right clamping plate, wherein the left clamping plate and the right clamping plate form a herringbone, and the extension directions of the lower edge of the left clamping plate and the lower edge of the right clamping plate are longitudinal; the rack is also provided with a left upper support and a right upper support, the upper end of the left clamping plate is hinged with the left upper support, and the upper end of the right clamping plate is hinged with the right upper support; it is characterized in that the preparation method is characterized in that,
the rack is also provided with a front sliding rail and a rear sliding rail which extend transversely, the front sliding rail is provided with a front left sliding block and a front right sliding block in a sliding way, and the rear sliding rail is provided with a rear left sliding block and a rear right sliding block in a sliding way; a first short rod is connected between the front left sliding block and the front end of the lower edge of the left clamping plate, and two ends of the first short rod are respectively hinged with the front end of the lower edge of the left clamping plate and the front left sliding block; a second short rod is connected between the front right sliding block and the front end of the lower edge of the right clamping plate, and two ends of the second short rod are respectively hinged with the front end of the lower edge of the right clamping plate and the front right sliding block; a third short rod is connected between the rear left sliding block and the rear end of the lower edge of the left clamping plate, and two ends of the third short rod are respectively hinged with the rear end of the lower edge of the left clamping plate and the rear left sliding block; a fourth short rod is connected between the rear right sliding block and the rear end of the lower edge of the right clamping plate, and two ends of the fourth short rod are respectively hinged with the rear end of the lower edge of the right clamping plate and the rear right sliding block; the front and the rear transmission chains are respectively provided with a chain wheel, and one chain wheel of the front transmission chain is connected with one chain wheel of the rear transmission chain by a longitudinal transmission shaft to synchronously rotate; the front left slide block is connected with the lower half section of the front transmission chain, the front right slide block is connected with the upper half section of the front transmission chain, the rear left slide block is connected with the lower half section of the rear transmission chain, and the rear right slide block is connected with the upper half section of the rear transmission chain; the front left slide block, the front right slide block, the rear left slide block and the rear right slide block are collectively called slide blocks; one of the sliding blocks is also connected with a transmission block and is also provided with a transverse driving mechanism for driving the transmission block to transversely move.
And a linear displacement sensor for detecting the moving distance of the transmission block is also arranged in a matched manner.
Each upper support is also provided with a transverse fine adjustment mechanism for driving the upper support to transversely move.
The transverse fine adjustment mechanism is as follows: the upper support is fixedly connected with a transverse sliding strip, two fixed clamping wheels are respectively arranged above and below the transverse sliding strip, the transverse sliding strip is clamped among the four clamping wheels and can only transversely move, and a longitudinally protruding short pin is fixedly connected to the transverse sliding strip; the swing arm can swing left and right, a swing shaft of the swing arm is longitudinal, a long hole is formed in the middle of the swing arm, and the short pin penetrates through the long hole; and a screw rod mechanism for pushing the swing arm to swing left and right is also arranged.
The utility model has the following advantages and effects:
one, when adjusting the contained angle of chevron shape splint, only need by one of them slider lateral shifting of transverse driving mechanism drive, just can make the lower edge of two splint simultaneously, symmetry, equivalent ground lateral shifting, consequently realize simultaneously, the inclination of symmetry, two splint are adjusted equally, ensure to make the central line of chevron shape splint contained angle keep always for with ground vertically vertical direction in accommodation process, keep unanimous promptly with membrane bubble central axis direction, and accommodation process is convenient, the regulating variable is accurate.
After the included angle of the herringbone clamping plates is adjusted, although the vertical positions of the lower edges of the left clamping plate and the right clamping plate can be changed, namely the vertical distance between the lower edges of the left clamping plate and the right clamping plate and the corresponding sliding blocks can be changed, the lower edges of the clamping plates are hinged with the corresponding sliding blocks through the short rods, and therefore the vertical position change of the lower edges of the clamping plates can be adapted.
Thirdly, the utility model can also finely adjust the transverse position of the upper parts of the two herringbone clamping plates.
Drawings
Fig. 1 is a schematic front view of the overall structure of an embodiment of the present invention.
Fig. 2 is a perspective view of an adjustment structure of the lower portion of the herringbone clamping plate.
Fig. 3 is a partially enlarged schematic view of fig. 2.
Fig. 4 is a perspective view of an adjustment structure of a lower portion of a front side of the herringbone plywood.
Fig. 5 is another enlarged partial view of fig. 2.
Fig. 6 is a perspective view of an adjustment structure of the lower portion of the rear side of the herringbone splint.
Fig. 7 is a schematic view of the lateral fine adjustment mechanism of the upper part of the left splint.
Fig. 8 is a partially enlarged schematic view of fig. 7.
Fig. 9 is another enlarged partial schematic view of fig. 7.
Detailed Description
The herringbone clamping plate adjusting structure of the plastic film blowing equipment shown in fig. 1, 4 and 6 comprises a rack, a left clamping plate 81 and a right clamping plate 82, wherein the left clamping plate 81 and the right clamping plate 82 form a herringbone, and the extension directions of the lower edge of the left clamping plate 81 and the lower edge of the right clamping plate 82 are both longitudinal; as shown in fig. 1, 7 and 8, the rack is further provided with a left upper support 2 and a right upper support 2, the upper end of the left clamping plate 81 is hinged with the left upper support 2 by an upper hinge shaft 20, and the upper end 82 of the right clamping plate is hinged with the right upper support 2 by an upper hinge shaft 20;
as shown in fig. 2, 3, 4 and 5, the frame is further provided with a front slide rail and a rear slide rail extending transversely, the front slide rail 11 at the front is provided with a front left slide block 31 and a front right slide block 32 in a sliding manner, the rear slide rail 12 at the rear is provided with a rear left slide block 33 and a rear right slide block 34 in a sliding manner, a first short rod 41 is connected between the front left slide block 31 and the front end of the lower edge of the left clamp plate 81, and two ends of the first short rod 41 are respectively hinged with the front end of the lower edge of the left clamp plate 81 and the front left slide block 31 by a lower hinge shaft 40; a second short rod 42 is connected between the front right slider 32 and the front end of the lower edge of the right clamping plate 82, and two ends of the second short rod 42 are respectively hinged with the front end of the lower edge of the right clamping plate 82 and the front right slider 32 by using a lower hinge shaft 40; a third short rod 43 is connected between the rear left sliding block 33 and the rear end of the lower edge of the left clamping plate 81, and two ends of the third short rod 43 are respectively hinged with the rear end of the lower edge of the left clamping plate 81 and the rear left sliding block 33 by using a lower hinge shaft 40; a fourth short rod 44 is connected between the rear right slider 34 and the rear end of the lower edge of the right clamping plate 82, and two ends of the fourth short rod 44 are respectively hinged with the rear end of the lower edge of the right clamping plate 82 and the rear right slider 34 by using a lower hinge shaft 40; the chain transmission device is also provided with a front transmission chain and a rear transmission chain, wherein the front transmission chain and the rear transmission chain are respectively provided with a chain wheel 7, and one chain wheel 7 (the chain wheel 7 positioned on the left side) of the front transmission chain 5 and one chain wheel 7 (the chain wheel 7 positioned on the left side) of the rear transmission chain 6 are connected by a longitudinal transmission shaft 70 to synchronously rotate; the front left slide block 31 is connected with the lower half section 51 of the front transmission chain, the front right slide block 32 is connected with the upper half section 52 of the front transmission chain, the rear left slide block 33 is connected with the lower half section 61 of the rear transmission chain, and the rear right slide block 34 is connected with the upper half section 62 of the rear transmission chain; the front left slider 31, the front right slider 32, the rear left slider 33 and the rear right slider 43 are collectively called sliders; wherein, the front right slide block 32 is also connected with a transmission block 91, and is also provided with a transverse driving mechanism 9 for driving the transmission block 91 to transversely move, and is also provided with a linear displacement sensor 90 for detecting the moving distance of the transmission block 91 in a matching way.
As shown in fig. 1, 7, 8 and 9, each upper support 2 is further provided with a lateral fine adjustment mechanism for driving the upper support to move laterally. The transverse fine adjustment mechanisms of the left upper support 2 and the right upper support 2 are bilaterally symmetrical; the transverse fine adjustment mechanism of each upper support 2 refers to: the upper support 2 is fixedly connected with a transverse slide bar 21, two fixed clamping wheels 22 are respectively arranged above and below the transverse slide bar 21, the transverse slide bar 21 is clamped among the four clamping wheels 22 and can only transversely move, and a short pin 23 which protrudes longitudinally is fixedly connected on the transverse slide bar 21; a swing arm 24 capable of swinging left and right is further arranged, a swing shaft 240 of the swing arm 24 is longitudinal, a long hole 25 is arranged in the middle of the swing arm 24, and the short pin 23 penetrates through the long hole 15; a screw rod mechanism 26 for pushing the swing arm 24 to swing left and right is also arranged.
The conditioning process of the above embodiment is as follows:
firstly, when the included angle of the herringbone clamping plates needs to be adjusted, only the transverse driving mechanism 9 needs to drive the front right slide block 32 to transversely move, so that the front driving chain 5 rotates, the front driving chain 5 and the rear driving chain 6 synchronously rotate due to the transmission of the longitudinal transmission shaft 70, because the moving directions of the upper half section and the lower half section are opposite when each chain rotates, the moving directions and the moving distances of the front left slide block 31 and the front right slide block 32 are opposite, the moving directions and the moving distances of the rear left slide block 33 and the rear right slide block 34 are opposite, the moving directions and the moving distances of the front left slide block 31 and the rear left slide block 33 are equal, the moving directions and the moving distances of the front right slide block 32 and the rear right slide block 34 are equal, so that the lower edges of the left clamping plate 81 and the right clamping plate 82 transversely move simultaneously, symmetrically and by two blocks, thereby realizing the simultaneous, symmetrical and equal adjustment of the inclination angles of the clamping plates, the central line (MN straight line in figure 1) of the included angle of the herringbone clamping plate is always kept to be vertical to the ground in the adjusting process, namely, the central line of the film bubble is kept consistent with the central axis direction of the film bubble.
When the horizontal position of the upper parts of the two herringbone clamping plates is required to be adjusted finely, the swing arm 24 is driven by the screw rod mechanism 26 to swing left and right around the swing shaft 240, so that the horizontal position of the short pin 23 is changed, and the horizontal position of the horizontal slide bar 21 and the upper support 2 is changed.
In the adjusting process, although the vertical positions of the lower edges of the left clamping plate and the right clamping plate can be changed, namely the vertical distance between the lower edges of the left clamping plate and the right clamping plate and the corresponding slide block can be changed, the vertical positions of the lower edges of the clamping plates can be adapted to change due to the fact that the lower edges of the clamping plates are hinged to the corresponding slide blocks through the short rods 70, namely the vertical positions of the lower edges of the two clamping plates can be adapted to change due to the fact that the inclination angles of the short rods 70 are changed.
Claims (4)
1. A herringbone clamping plate adjusting structure of plastic film blowing equipment comprises a rack, a left clamping plate and a right clamping plate, wherein the left clamping plate and the right clamping plate form a herringbone, and the extension directions of the lower edge of the left clamping plate and the lower edge of the right clamping plate are longitudinal; the rack is also provided with a left upper support and a right upper support, the upper end of the left clamping plate is hinged with the left upper support, and the upper end of the right clamping plate is hinged with the right upper support; the method is characterized in that: the rack is also provided with a front sliding rail and a rear sliding rail which extend transversely, the front sliding rail is provided with a front left sliding block and a front right sliding block in a sliding way, and the rear sliding rail is provided with a rear left sliding block and a rear right sliding block in a sliding way; a first short rod is connected between the front left sliding block and the front end of the lower edge of the left clamping plate, and two ends of the first short rod are respectively hinged with the front end of the lower edge of the left clamping plate and the front left sliding block; a second short rod is connected between the front right sliding block and the front end of the lower edge of the right clamping plate, and two ends of the second short rod are respectively hinged with the front end of the lower edge of the right clamping plate and the front right sliding block; a third short rod is connected between the rear left sliding block and the rear end of the lower edge of the left clamping plate, and two ends of the third short rod are respectively hinged with the rear end of the lower edge of the left clamping plate and the rear left sliding block; a fourth short rod is connected between the rear right sliding block and the rear end of the lower edge of the right clamping plate, and two ends of the fourth short rod are respectively hinged with the rear end of the lower edge of the right clamping plate and the rear right sliding block; the front and the rear transmission chains are respectively provided with a chain wheel, and one chain wheel of the front transmission chain is connected with one chain wheel of the rear transmission chain by a longitudinal transmission shaft to synchronously rotate; the front left slide block is connected with the lower half section of the front transmission chain, the front right slide block is connected with the upper half section of the front transmission chain, the rear left slide block is connected with the lower half section of the rear transmission chain, and the rear right slide block is connected with the upper half section of the rear transmission chain; the front left slide block, the front right slide block, the rear left slide block and the rear right slide block are collectively called slide blocks; one of the sliding blocks is also connected with a transmission block and is also provided with a transverse driving mechanism for driving the transmission block to transversely move.
2. The herringbone clamping plate adjusting structure of the plastic film blowing equipment according to claim 1, characterized in that: and a linear displacement sensor for detecting the moving distance of the transmission block is also arranged in a matched manner.
3. The herringbone clamping plate adjusting structure of the plastic film blowing equipment according to claim 1 or 2, characterized in that: each upper support is also provided with a transverse fine adjustment mechanism for driving the upper support to transversely move.
4. The herringbone clamping plate adjusting structure of the plastic film blowing equipment according to claim 3, characterized in that: the transverse fine adjustment mechanism is as follows: the upper support is fixedly connected with a transverse sliding strip, two fixed clamping wheels are respectively arranged above and below the transverse sliding strip, the transverse sliding strip is clamped among the four clamping wheels and can only transversely move, and a longitudinally protruding short pin is fixedly connected to the transverse sliding strip; the swing arm can swing left and right, a swing shaft of the swing arm is longitudinal, a long hole is formed in the middle of the swing arm, and the short pin penetrates through the long hole; and a screw rod mechanism for pushing the swing arm to swing left and right is also arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121760624.5U CN215791725U (en) | 2021-07-30 | 2021-07-30 | Herringbone clamping plate adjusting structure of plastic film blowing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121760624.5U CN215791725U (en) | 2021-07-30 | 2021-07-30 | Herringbone clamping plate adjusting structure of plastic film blowing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN215791725U true CN215791725U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121760624.5U Active CN215791725U (en) | 2021-07-30 | 2021-07-30 | Herringbone clamping plate adjusting structure of plastic film blowing equipment |
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| Country | Link |
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| CN (1) | CN215791725U (en) |
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2021
- 2021-07-30 CN CN202121760624.5U patent/CN215791725U/en active Active
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