CN203557704U - Chain tongs system with two chains for plastic film stretching production line - Google Patents
Chain tongs system with two chains for plastic film stretching production line Download PDFInfo
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- CN203557704U CN203557704U CN201320684869.3U CN201320684869U CN203557704U CN 203557704 U CN203557704 U CN 203557704U CN 201320684869 U CN201320684869 U CN 201320684869U CN 203557704 U CN203557704 U CN 203557704U
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- chain
- pincers
- bearing
- axle
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 239000002985 plastic film Substances 0.000 title abstract 2
- 229920006255 plastic film Polymers 0.000 title abstract 2
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 112
- 229920003023 plastic Polymers 0.000 claims description 29
- 239000004033 plastic Substances 0.000 claims description 29
- 239000011888 foil Substances 0.000 claims description 28
- 238000012856 packing Methods 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a chain tongs system with two chains for a plastic film stretching production line. An upper chain and a lower chain are arranged on each side; a tongs body of a pair of chain tongs is fixedly connected with a supporting seat; the longitudinal section of the supporting seat is in a shape of a square with the unsealed right side, and a longitudinal supporting plate of the supporting seat is fixedly connected with the tongs body; an upper supporting plate and a lower supporting plate are respectively used for fixing two chain knots of the upper chain and the lower chain on the upper side and the lower side; a rail is arranged between the upper supporting plate and the lower supporting plate; two upper (lower) inner bearings and two upper (lower) outer bearings are fixed below (above) the upper (lower) supporting plate; the outer rings of all the bearings are respectively tangent to the inner side surface and the outer side surface of the rail; a plane of a film clamping opening is parallel to a horizontal half plane of the rail, and a distance between the plane and the horizontal half plane is smaller than 3mm; the outer ring of the bearing fixed at the top end above the upper supporting plate is tangent to the top surface of the rail. Parts of the chain tongs of the system are fixed on the two chains, so that the stress area is enlarged, the tensile strength is enhanced, and deformation and damage are avoided; the upper bearings and the lower bearings support the chain tongs on the rail to guarantee safety running during thick film production; due to the split type structure of the tongs body and the supporting seat, replacement and maintenance are facilitated.
Description
Technical field
The utility model relates to the chain pincers system of plastic foil stretching production line clamping film, is specially a kind of chain pincers system of plastic foil stretching production line chain.
Background technology
In plastic foil stretching production line, in drawing process to the limit reinforcing of plastic foil both lateral sides, to carry out horizontal stretching or film cross-direction shrinkage to be reduced when the longitudinal stretching, chain pincers system all to be installed.Chain pincers system is included in 2 fixing cyclic tracks of production line transverse stretching machine both sides, 2 chains and multiple chain pincers.Multiple chain pincers are installed on every chain equidistantly, and the track of each side is joined a chain.In process, chain is synchronously advanced with plastic foil on process track in the same way with the chain pincers of clamping film side.During return, chain pincers is opened separation with film, and chain returns to entrance from transverse stretching machine outlet with chain pincers on return track.
When being greater than 100 μ m, the plastic foil thickness of producing is regarded as thick film.During the work of thick film production line, the pulling force of stretching thick film is very large, under the effect of heavy load, the bearing that is fixedly mounted on the chain pincers on single strand chain chain link easily departs from the track of transverse stretching machine, due to stressed irregular of chain pincers, the parts of chain pincers easily produce distortion, and even fracture damage affects the safe operation of production line.
Utility model content
The purpose of this utility model is the chain pincers system of a kind of plastic foil stretching production line chain of design, at the track of each side of plastic foil stretching production line, mixes lower 2 chains, and chain pincers is fixedly connected with the chain link of lower chain.Be applicable to thick film and stretch, guarantee that chain pincers is stressed evenly, orbit steady, reliable.
The chain pincers system of the plastic foil stretching production line chain of the utility model design comprises chain pincers, track and chain, multiple chain links are connected in order and are formed chain by upper and lower chain sheet, multiple chain pincers are arranged on chain, chain is connected with chain pincers system driving device, chain pincers comprises pincers body and pincers handle, major axis is installed in rotation on pincers handle on pincers body, and spring housing connects pincers handle and pincers body; Chain pincers card in orbit, advance in orbit by the chain pincers on the operation of drive unit chain drive-belt, chain.The chain of each side of chain pincers system plastic foil stretching production line is upper and lower 2, the pincers body of chain pincers is fixedly connected with supporting base, the longitudinal cross-section of supporting base is " Contraband " shape, comprise longitudinal supporting plate and horizontal upper, lower support plate, its longitudinal supporting plate is fixedly connected with pincers body, 2 chain links of fixing upper strata, the top chain of upper bearing plate, 2 chain links of the fixing lower floor in the below chain of lower support plate, track is in upper, between lower support plate, 2 upper inner bearings and 2 upper outer bearings are fixed in the below of upper bearing plate, the outer ring of upper inner bearing and upper outer bearing is tangent with the interior lateral surface on track top respectively, 2 lower inner bearings and 2 lower outer bearings are fixed in the top of lower support plate, and the outer ring of lower inner bearing and lower outer bearing is tangent with the interior lateral surface of track bottom respectively.
Each upper inner bearing is just relative with a lower inner bearing of its below, and the center line of the two is on same plumb line.
A lower outer bearing positive pair of each upper outer bearing and its below, the center line of the two is on same plumb line.
The installing hole of each upper strata chain link plate is just relative with the installing hole of lower floor's chain link plate of its below, and the center line of the two is on same plumb line.
Roller bearing or ball bearing that upper inner bearing and lower inner bearing are same size; Roller bearing or ball bearing that upper outer bearing and lower outer bearing are same size.
In the level of track, a point plane equates with the distance of face in face, lower inner bearing thickness in upper inner bearing thickness; In the level of track, a point plane also equates with the distance of face in face, lower outer bearing thickness in upper outer bearing thickness.
On same supporting base, in the thickness of upper inner bearing in the thickness of face and upper outer bearing face in same level, in the thickness of lower inner bearing in the thickness of face and lower outer bearing face in same level.
Point plane parallel in the folder film mouth plane of living in of the pincers handle of chain pincers and pincers body and the level of track, the distance between two planes is less than 3mm.
Upper inner bearing, upper outer bearing, lower inner bearing and lower outer bearing are fixedly connected with upper and lower support plate by bearing pin respectively.
The bearing pin of fixing each upper inner bearing, lower inner bearing be the axle of having strong market potential, and has diameter to be greater than the have strong market potential boss of axle installing hole and chain link installing hole, chain sheet installing hole of upper and lower support plate in the middle part of the axle of having strong market potential.Upper bearing plate upper surface has round the groove of having strong market potential axle installing hole and matching with the crown of roll platform of having strong market potential, the upper bearing plate that axle lower end is passed down through supporting base of the having strong market potential axle installing hole of having strong market potential, the boss of axle of having strong market potential is embedded in the groove of upper bearing plate, and the upper surface of boss is equal with upper bearing plate upper surface, the axle of having strong market potential of boss top is through the chain link installing hole of 1 upper strata chain and the installing hole of its upper and lower chain sheet.Have strong market potential axle lower end through upper inner bearing centre bore, and the upper and lower end of the axle of having strong market potential is fixed by packing ring and nut.
Lower support plate lower surface has round the groove of having strong market potential axle installing hole and matching with the crown of roll platform of having strong market potential, the lower support plate that axle upper end is upward through supporting base of the having strong market potential axle installing hole of having strong market potential, the boss of axle of having strong market potential is embedded in the groove of lower support plate, and the lower surface of boss is equal with lower support plate lower surface, axle chain link installing hole and its upper and lower chain sheet installing hole through 1 lower floor's chain of having strong market potential of boss below.Have strong market potential the upper end of axle through lower inner bearing centre bore, and the upper and lower end of the axle of having strong market potential is fixed by packing ring and nut.
The top of upper bearing plate is also fixed with top bearing, and the outer ring of top bearing and the end face of track are tangent.Cotter axle is fixedly connected with top bearing and upper bearing plate.
It is "T"-shaped cannelure that the external side of pincers has cross section, and the inner side inlay card of longitudinal supporting plate, in the cannelure of pincers body, and has screw to be fixedly connected with pincers body and longitudinal supporting plate.Guarantee the firm connection of pincers body and supporting base.
Drive unit drives upper and lower chain operation, the masterpiece of upper and lower chain is advanced along track for chain pincers, drive chain pincers, roll in the outer ring of the upper inner bearing on chain pincers supporting base, lower inner bearing and upper outer bearing, lower outer bearing on track two sides, top bearing rolls on end face in orbit, and each bearing and interorbital rolling friction make chain pincers walking frictional force little.While is because of the folder film mouth plane of living in of pincers handle and pincers body, between upper and lower bearing, the plastics that chain pincers bears lateral pull through upper and lower bearing, be distributed in track upper and lower, not only increased the stress surface of chain pincers, and make chain pincers stressed evenly, guarantee that chain pincers operates steadily, reliably on transverse stretching machine track.
Compared with prior art, the advantage of the chain pincers system of the utility model plastic foil stretching production line chain is: 1, to being subject to the chain pincers parts of active force maximum, be fixed on chain, its stressed cross section significantly strengthens, its Tensile strength significantly improves, and guarantees that the parts of chain pincers are difficult for deformation and fracture damage; 2, meet the needs of thick film production line, under the effect of heavy load, chain pincers is not easy to depart from the track of transverse stretching machine under the support of metal (upper, guarantees the safe operation of production line; Be suitable for the production that thickness is the thick plastic foil of 80～300 μ m; 3, chain pincers pincers body and supporting base adopt split-type structural, are convenient to install and split, and chain pincers is easy to change and maintenance.
Accompanying drawing explanation
Fig. 1 is the chain pincers system embodiment structural representation of plastic foil stretching production line chain;
Fig. 2 is the chain pincers system embodiment schematic top plan view of plastic foil stretching production line chain;
The A-A cutaway view of Fig. 3 Fig. 2;
Fig. 4 is the chain pincers system embodiment entity schematic diagram of plastic foil stretching production line chain.
Number in the figure: 1, pincers handle, 2, major axis, 3, spring housing, 4, folder film mouth, 5, pincers body, 6, supporting base, 7, screw, 8, lower inner bearing, 9, the axle of having strong market potential, 10, chain link, 11, chain sheet, 12, short pin shaft, 13, lower outer bearing, 14, track, 15, upper outer bearing, 16, top bearing, 17, cotter axle, 18, upper inner bearing.
B: face in lower outer bearing thickness, C: point plane in track cross level, D: face in upper outer bearing thickness.
The specific embodiment
The chain pincers system embodiment of this plastic foil stretching production line chain as shown in Figures 1 to 4, this routine chain pincers system comprises chain pincers, track 14 and chain, multiple chain links 10 are connected and form chain in order by upper and lower chain sheet 11, multiple chain pincers are arranged on chain, chain is connected with chain pincers system driving device, this routine chain pincers comprises pincers handle 1, pincers body 5 and supporting base 6, and major axis 2 is installed in rotation on pincers handle 1 on pincers body 5, and spring housing 3 connects pincers handle 1 and pincers body 5; Pincers body 5 is fixedly connected with supporting base 6, the longitudinal cross-section of supporting base 6 is " Contraband " shape, it is "T"-shaped cannelure that there is cross section in pincers body 5 outsides, the inner side inlay card of longitudinal supporting plate is in the cannelure of pincers body 5, screw 7 is fixedly connected with pincers body 5 and longitudinal supporting plate, for guaranteeing to overlap flexible packing ring and circular washer on the two firm connection, screw 7.
The chain of this routine each side of chain pincers system plastic foil stretching production line is upper and lower 2.
The centerline of two lower inner bearings 8 of 6 two upper inner bearings 18 of same supporting base and this supporting base 6 is on two plumb lines; Namely each upper inner bearing 18 is just relative with a lower inner bearing 8 of its below, and the center line of the two is on same plumb line.
The centerline of two lower outer bearings 13 of 6 two upper outer bearings 15 of same supporting base and this supporting base 6 is on two plumb lines; Be that each upper outer bearing 15 is just relative with a lower outer bearing 13 of its below, the center line of the two is on same plumb line.
The upper inner bearing 18 of this example, lower inner bearing 8, upper outer bearing 15 and lower outer bearing 13 are the ball bearing of same size.
In the thickness of upper inner bearing 18, in the thickness of face and upper outer bearing 15, face D is in same level, and in the thickness of lower inner bearing 8, in the thickness of face and lower outer bearing 13, face B is in another horizontal plane together.In the thickness of upper inner bearing 18, upper outer bearing 15, lower inner bearing 8 and lower outer bearing 13, in the level of face and track, a point plane C distance all equates.
The have strong market potential boss of axle 9 installing holes and chain link 10 installing holes, chain sheet 11 installing holes of the upper and lower support plate that axle 9 middle parts have diameter to be greater than supporting base 6 of having strong market potential.Upper bearing plate upper surface has round the groove of having strong market potential axle 9 installing holes and matching with axle 9 boss of having strong market potential, the upper bearing plate that axle 9 lower ends are passed down through supporting base 6 of having strong market potential axle 9 installing holes of having strong market potential, the boss of axle 9 of having strong market potential is embedded in the groove of upper bearing plate, and the upper surface of boss is equal with upper bearing plate upper surface, axle 9 chain link 10 installing holes and its upper and lower chain sheet 11 installing holes through 1 upper strata chain of having strong market potential of boss top.Have strong market potential the lower end of axle 9 through upper inner bearing 18 centre bores, and the upper and lower end of the axle 9 of having strong market potential is fixed by packing ring and nut.
Lower support plate lower surface has round the groove of having strong market potential axle 9 installing holes and matching with axle 9 boss of having strong market potential, the lower support plate that axle 9 upper ends are upward through supporting base 6 of having strong market potential axle 9 installing holes of having strong market potential, the boss of axle 9 of having strong market potential is embedded in the groove of lower support plate, and the lower surface of boss is equal with lower support plate lower surface, the axle 9 of having strong market potential of boss below is installed through chain link 10 installing holes and its upper and lower chain sheet 11 of 1 lower floor's chain.Have strong market potential the upper end of axle 9 through lower inner bearing 8 centre bores, and the upper and lower end of the axle 9 of having strong market potential is fixed by packing ring and nut.
At upper bearing plate, short pin shaft 12 one end are stiff end, and the other end is upward through after the centre bore and upper bearing plate short pin shaft 12 installing holes of outer bearing 15, by packing ring and nut, is fixed.
In lower support plate, similarly, short pin shaft 12 one end are stiff end, and the other end is passed down through after the centre bore and lower support plate short pin shaft 12 installing holes of lower outer bearing 13, by packing ring and nut, is fixed.
On upper bearing plate, be also fixed with top bearing 16, the end face of the outer ring of top bearing 16 and track 14 is tangent.Cotter axle 17 is fixedly connected with top bearing 16 and upper bearing plate.
The center line of cotter axle 17 is vertical with the plane of the center line through 2 upper inner bearings 18, and the intersection point of its vertical line equates to the distances of the center line of 2 upper inner bearings 18 in this plane; Meanwhile, the center line of cotter axle 17 is vertical with the plane of the center line through 2 upper outer bearings 15, and the intersection point of its vertical line equates to the distances of the center line of 2 upper outer bearings 15 in this plane;
Above-described embodiment, is only the specific case that the purpose of this utility model, technical scheme and beneficial effect are further described, and the utility model is not defined in this.All any modifications of making, be equal to replacement, improvement etc., within being all included in protection domain of the present utility model within scope of disclosure of the present utility model.
Claims (9)
1. the chain pincers system of plastic foil stretching production line chain, comprise chain pincers, track (14) and chain, the upper and lower of multiple chain links (10) connected in order and formed chain by chain sheet (11), multiple chain pincers are arranged on chain, chain is connected with chain pincers system driving device, chain pincers comprises pincers body (5) and pincers handle (1), and it is upper that major axis (2) is installed in rotation on pincers body (5) by pincers handle (1), and spring housing (3) connects pincers handle (1) and pincers body (5); It is upper that chain pincers is stuck in track (14), and the chain pincers on the operation of drive unit chain drive-belt, chain is advanced on track (14); It is characterized in that:
The chain of each side of chain pincers system plastic foil stretching production line is upper and lower 2, the pincers body (5) of chain pincers is fixedly connected with supporting base (6), the longitudinal cross-section of supporting base (6) is " Contraband " shape, comprise longitudinal supporting plate and horizontal upper, lower support plate, its longitudinal supporting plate is fixedly connected with pincers body (5), 2 chain links (10) of fixing upper strata, the top chain of upper bearing plate, 2 chain links (10) of the fixing lower floor in the below chain of lower support plate, track (14) is in upper, between lower support plate, 2 upper inner bearings (18) and 2 upper outer bearings (15) are fixed in the below of upper bearing plate, the outer ring of upper inner bearing (18) and upper outer bearing (15) is tangent with the interior lateral surface on track (14) top respectively, 2 lower inner bearings (8) and 2 lower outer bearings (13) are fixed in the top of lower support plate, and the outer ring of lower inner bearing (8) and lower outer bearing (13) is tangent with the interior lateral surface of track (14) bottom respectively.
2. the chain pincers system of plastic foil stretching production line chain according to claim 1, is characterized in that:
Described each upper inner bearing (18) is just relative with a lower inner bearing (8) of its below, and the centerline of the two is on same plumb line;
Described each upper outer bearing (15) is just relative with a lower outer bearing (13) of its below, and the centerline of the two is on same plumb line;
The installing hole of described each upper strata chain link plate (10) is just relative with the installing hole of lower floor's chain link plate (10) of its below, and the center line of the two is on same plumb line.
3. the chain pincers system of plastic foil stretching production line chain according to claim 1, is characterized in that:
In the level of described track, a point plane (C) equates with the distance of face in face, lower inner bearing (8) thickness in upper inner bearing (18) thickness;
In the level of described track, in the thickness of point plane (C) and upper outer bearing (15), in the thickness of face (D), lower outer bearing (13), the distance of face (B) equates.
4. the chain pincers system of plastic foil stretching production line chain according to claim 3, is characterized in that:
In the thickness of described upper inner bearing (18) in the thickness of face and upper outer bearing (15) face (D) in same level, in the thickness of described lower inner bearing (8) in the thickness of face and lower outer bearing (13) face (B) in same level.
5. the chain pincers system of plastic foil stretching production line chain according to claim 1, is characterized in that:
Folder film mouth (4) plane of living in of the pincers handle (1) of described chain pincers and pincers body (5) is parallel with in track cross level point of plane (C), and the distance between two planes is less than 3mm.
6. the chain pincers system of plastic foil stretching production line chain according to claim 1, is characterized in that:
Described upper inner bearing (18), upper outer bearing (15), lower inner bearing (8) and lower outer bearing (13) are fixedly connected with upper and lower support plate by bearing pin respectively.
7. the chain pincers system of plastic foil stretching production line chain according to claim 6, is characterized in that:
The fixing described each upper inner bearing (18) of the axle (9) of having strong market potential and lower inner bearing (8), the have strong market potential boss of axle (9) installing hole and chain link (10) installing hole, chain sheet (11) installing hole of the upper and lower support plate that has diameter to be greater than supporting base (6) in the middle part of the axle of having strong market potential (9);
Upper bearing plate upper surface has the groove matching round the axle of having strong market potential (9) installing hole and with the axle of having strong market potential (9) boss, the upper bearing plate that axle (9) lower end is passed down through supporting base (6) of having strong market potential axle (9) installing hole of having strong market potential, the boss of axle (9) of having strong market potential is embedded in the groove of upper bearing plate, and the upper surface of boss is equal with upper bearing plate upper surface, the axle of having strong market potential (9) of boss top is through chain link (10) installing hole and its upper and lower chain sheet (11) installing hole of 1 upper strata chain; Have strong market potential axle (9) lower end through the centre bore of upper inner bearing (18), and the upper and lower end of the axle of having strong market potential (9) is fixed by packing ring and nut;
Lower support plate lower surface has the groove matching round the axle of having strong market potential (9) installing hole and with the axle of having strong market potential (9) boss, the lower support plate that axle (9) upper end is upward through supporting base (6) of having strong market potential axle (9) installing hole of having strong market potential, the boss of axle (9) of having strong market potential is embedded in the groove of lower support plate, and the lower surface of boss is equal with lower support plate lower surface, the axle of having strong market potential (9) of boss below is through chain link (10) installing hole and its upper and lower chain sheet (11) installing hole of 1 lower floor's chain; Have strong market potential axle (9) upper end through the centre bore of lower inner bearing (8), and the upper and lower end of the axle of having strong market potential (9) is fixed by packing ring and nut.
8. the chain pincers system of plastic foil stretching production line chain according to claim 1, is characterized in that:
The top of described upper bearing plate is also fixed with top bearing (16), and the end face of the outer ring of top bearing (16) and track (14) is tangent; Cotter axle (17) is fixedly connected with top bearing (16) and upper bearing plate.
9. the chain pincers system of plastic foil stretching production line chain according to claim 1, is characterized in that:
It is "T"-shaped cannelure that there is cross section in described pincers body (5) outside, and the inner side inlay card of longitudinal supporting plate, in the cannelure of pincers body (5), has screw (7) to be fixedly connected with pincers body (5) and longitudinal supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684869.3U CN203557704U (en) | 2013-11-01 | 2013-11-01 | Chain tongs system with two chains for plastic film stretching production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684869.3U CN203557704U (en) | 2013-11-01 | 2013-11-01 | Chain tongs system with two chains for plastic film stretching production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203557704U true CN203557704U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320684869.3U Expired - Lifetime CN203557704U (en) | 2013-11-01 | 2013-11-01 | Chain tongs system with two chains for plastic film stretching production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203557704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568309A (en) * | 2013-11-01 | 2014-02-12 | 桂林电器科学研究院有限公司 | Chain clamp system with double chains on plastic film stretching production line |
| CN105799149A (en) * | 2016-04-26 | 2016-07-27 | 北京华腾佳和科技有限公司 | Chain link assembly, chain and film stretching device capable of reducing longitudinal shrinkage ratio |
-
2013
- 2013-11-01 CN CN201320684869.3U patent/CN203557704U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568309A (en) * | 2013-11-01 | 2014-02-12 | 桂林电器科学研究院有限公司 | Chain clamp system with double chains on plastic film stretching production line |
| CN105799149A (en) * | 2016-04-26 | 2016-07-27 | 北京华腾佳和科技有限公司 | Chain link assembly, chain and film stretching device capable of reducing longitudinal shrinkage ratio |
| CN105799149B (en) * | 2016-04-26 | 2019-03-29 | 北京华腾佳和科技有限公司 | A kind of link assemblies, chain and the thin film stretching device for reducing longitudinal contraction rate |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20140423 |