CN102294707A - Clamping device - Google Patents

Clamping device Download PDF

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Publication number
CN102294707A
CN102294707A CN2011102776371A CN201110277637A CN102294707A CN 102294707 A CN102294707 A CN 102294707A CN 2011102776371 A CN2011102776371 A CN 2011102776371A CN 201110277637 A CN201110277637 A CN 201110277637A CN 102294707 A CN102294707 A CN 102294707A
Authority
CN
China
Prior art keywords
clamping
cylindrical shell
sleeve
lock sleeve
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011102776371A
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Chinese (zh)
Other versions
CN102294707B (en
Inventor
季湘杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd
Original Assignee
ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd filed Critical ZHANGJIAGANG JIEDA MACHINERY MANUFACTURE CO Ltd
Priority to CN 201110277637 priority Critical patent/CN102294707B/en
Publication of CN102294707A publication Critical patent/CN102294707A/en
Application granted granted Critical
Publication of CN102294707B publication Critical patent/CN102294707B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a clamping device, which comprises mounting plates arranged at two sides of a mounting bracket respectively, wherein the mounting plate of each side is provided with a clamping mechanism; the structure of each clamping mechanism comprises a clamping sleeve and a locking sleeve which are mutually matched, wherein the clamping sleeve comprises a head and a cylinder, the cylinder is provided with at least three 'V'-shaped notches with wide outside and narrow inside, a clamping jaw is formed at the outer end of the cylinder through the notches, the cylinder is arranged in the cavity of the locking sleeve, and a taper section is formed in the cavity of the locking sleeve; and the cylinder is driven by a pair of clamping cylinders and moves to and fro in the cavity of the locking sleeve, so that the clamping jaw can be closed or opened. In the clamping device, the clamping sleeve has good recovery property and long service life; and the clamping jaw on the clamping sleeve has large closing amplitude, and the clamping sleeve of one specification can clamp plastic pipes of multiple specifications, so the utilization rate is improved. The clamping device can be widely applied to plastic pipe production equipment.

Description

Clamping device
Technical field
The present invention relates to the plastic pipe production equipment, be specifically related to the clamping device in the plastic pipe production equipment.
Background technology
The plastic pipe production equipment mainly comprises several sections such as conical double screw extruder, extrusion die, vacuum sizing device, cooling device, draw-gear, cutter sweep.And cutter sweep wherein generally includes cutting mechanism and clamping device two parts, wherein the structure of clamping device is: mounting bracket, the both sides of mounting bracket upper edge plastic pipe moving direction are respectively arranged with installing plate, be provided with clamp mechanism on the installing plate of each side, the structure of each clamp mechanism is: gripping sleeve that cooperatively interacts and lock sleeve, wherein gripping sleeve comprises head and cylindrical shell, evenly be provided with at least three notches on the described cylindrical shell vertically, described notch makes the cylindrical shell outer end portion form claw, described notch is " one " font, the outer surface of cylindrical shell upper clipping claw is provided with by thick tapered tapered section, described cylindrical shell is installed in the inner chamber of lock sleeve, also be provided with in the inner chamber of described lock sleeve by thick tapered tapered section, described cylindrical shell is driven by drive unit, and in the inner chamber of lock sleeve, move, and when cylindrical shell from outside to inside in the lock sleeve when mobile, tapered section in the tapered section of cylindrical shell jaw surface and the lock sleeve inner chamber cooperatively interacts, and claw is drawn in and firmly blocks plastic pipe; Otherwise when cylindrical shell from inside to outside outside the lock sleeve when mobile, claw can unclamp and decontrol plastic pipe.The structure of described drive unit is: be set with a pair of clamping cylinder on the installing plate of mounting bracket both sides respectively, every pair clamps the upper and lower that cylinder lays respectively at this side clamp mechanism, two gripping sleeves are separately fixed on two connecting plates, every connecting plate is fixed on upper and lower two connecting rods of this side, and two connecting rods are separately fixed on the piston rod of upper and lower two cylinders of this side.
In the said structure, be " one " font owing to form three notches of claw on the cylindrical shell, its reproducibility is relatively poor when unclamping after making claw draw in again, is easy to generate plastic deformation, and service life is short; And the claw of this structure, its gathering amplitude is very limited, can only tighten a kind of plastic pipe of specification usually, must be equipped with different gripping sleeves and lock sleeve when making the tubing of producing different specification size, not only changes trouble, and increases production cost; Moreover the drive unit in this clamping device need dispose four cylinders, and cost is higher.
Summary of the invention
Well-recovered, the long service life that provides a kind of gripping sleeve of the problem that the present invention need solve and can clamp the clamping device of plurality of specifications plastic pipe.
For addressing the above problem, the present invention is achieved through the following technical solutions.
Clamping device, comprise: mounting bracket, the both sides of mounting bracket upper edge plastic pipe moving direction are respectively arranged with installing plate, be provided with clamp mechanism on the installing plate of each side, the structure of each clamp mechanism is: gripping sleeve that cooperatively interacts and lock sleeve, lock sleeve is fixedly mounted on the installing plate, wherein gripping sleeve comprises head and cylindrical shell, be provided with at least three notches on the described cylindrical shell vertically, described notch makes the outer end portion of cylindrical shell form claw, described cylindrical shell is installed in the inner chamber of lock sleeve, be provided with tapered section in the inner chamber of described lock sleeve, described cylindrical shell is driven by drive unit, and in the inner chamber of lock sleeve, move, and when cylindrical shell from outside to inside in the lock sleeve when mobile, claw draws in and firmly blocks plastic pipe at tapered section, when cylindrical shell from inside to outside outside the lock sleeve when mobile, claw can unclamp and decontrol plastic pipe; Described notch is " V " shape notch wide outside and narrow inside, the structure of described drive unit is: wherein be set with a pair of clamping cylinder on the installing plate of a side at mounting bracket, clamp the both sides up and down that cylinder lays respectively at clamp mechanism, described two gripping sleeves by this to clamping air cylinder driven.
Further, aforesaid clamping device, wherein, the concrete syndeton of described clamping cylinder and gripping sleeve is: the end of each cylinder piston rod is provided with connecting rod, on two installing plates of the equal expansion bearing of described connecting rod in mounting bracket, two gripping sleeves are separately fixed on two connecting plates, and every connecting plate is fixed on the connecting rod.
Further, aforesaid clamping device, wherein, the two ends of tapered section are flat segments in the inner chamber of described lock sleeve.
Advantage of the present invention is: owing to be provided with " V " wide outside and narrow inside font notch on the cylindrical shell of gripping sleeve, when unclamping after claw draws in and clamps, it is Well-recovered, long service life again; And the amplitude that the structure of " V " font notch is drawn claw in is bigger, thereby a kind of gripping sleeve of specification can tighten the plastic pipe of plurality of specifications size, has improved utilization rate, has reduced production cost; And only being provided with two clamping cylinders in the clamp mechanism, equipment cost reduces greatly.
Description of drawings
Fig. 1 is the structural representation of clamping device of the present invention.
Fig. 2 is the structural representation of first gripping sleeve among Fig. 1.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the structural representation of second gripping sleeve among Fig. 1.
Fig. 5 is the right view of Fig. 4.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, described clamping device, comprise: mounting bracket 1, the both sides of mounting bracket 1 upper edge plastic pipe moving direction are respectively arranged with first installing plate 2 and second installing plate 3, first installing plate 2 is provided with first clamp mechanism, second installing plate 3 is provided with second clamp mechanism, the structure of first clamp mechanism is: referring to Fig. 1, Fig. 2, shown in Figure 3, first gripping sleeve 4 that cooperatively interacts and first lock sleeve 5, first lock sleeve 5 is fixedly mounted on first installing plate 2, wherein first gripping sleeve comprises first head 41 and first cylindrical shell 42, evenly be provided with three V-shaped groove mouths 6 wide outside and narrow inside on described first cylindrical shell 42 vertically, three notches 6 make the outer end portion of first cylindrical shell 42 form three first claws 421, described first cylindrical shell 42 is installed in the inner chamber of first lock sleeve 5, be provided with tapered section in the inner chamber of described first lock sleeve 5, the two ends of tapered section are flat segments; The structure of second clamp mechanism is: referring to Fig. 1, Fig. 4, shown in Figure 5, second gripping sleeve 7 that cooperatively interacts and second lock sleeve 8, second lock sleeve 8 is fixedly mounted on second installing plate 3, wherein second gripping sleeve 7 comprises second head 71 and second cylindrical shell 72, be provided with four " V " shape notches wide outside and narrow inside on described second cylindrical shell 72 vertically, four notches make the outer end portion of second cylindrical shell 72 form four second claws 721, described second cylindrical shell 72 is installed in the inner chamber of second lock sleeve 8, also be provided with tapered section in the inner chamber of described second lock sleeve 8, the two ends of tapered section also are flat segments.Described first cylindrical shell 42 and second cylindrical shell 72 are driven, are also moved in the inner chamber of first lock sleeve 5 and second lock sleeve 8 respectively by drive unit.When first cylindrical shell 42 from outside to inside in first lock sleeve 5 when mobile, first claw 421 on first cylindrical shell 42 can draw at tapered section and firmly block plastic pipe, when first cylindrical shell 42 from inside to outside outside first lock sleeve 7 when mobile, first claw 421 can unclamp and decontrol plastic pipe; When second cylindrical shell 72 from outside to inside in second lock sleeve 8 when mobile, second claw 721 can draw at tapered section and firmly block plastic pipe, when second cylindrical shell 72 from inside to outside outside second lock sleeve 8 when mobile, second claw 721 can unclamp and decontrol plastic pipe.The structure of described drive unit is: referring to shown in Figure 1, on second installing plate 3 on the mounting bracket 1, be set with a pair of clamping cylinder 9, two clamp the both sides up and down that cylinder 9 lays respectively at clamp mechanism, the end of each cylinder piston rod 91 is provided with connecting rod 10, described connecting rod 10 difference expansion bearings are on first installing plate 2 and second installing plate 3, first gripping sleeve 4 is fixed on first connecting plate 11, second gripping sleeve 7 is fixed on second connecting plate 12, and the two ends up and down of first connecting plate 11 and second connecting plate 12 are separately fixed at up and down on two connecting rods 10.
During work, the plastic pipe that double screw extruder is extruded passes first gripping sleeve 4, first lock sleeve 5, second gripping sleeve 7, second lock sleeve 8, when cutting when needs clamping plastic pipe so that to plastic pipe, two clamp cylinder piston rod 91 on the cylinders 9 spur respectively coupled on, following two connecting rods 10 are to moving near the direction that clamps cylinder 9, on, following two connecting rods 10 drive first connecting plate 11 simultaneously and second connecting plate 12 moves to the direction near clamping cylinder 9, this moment, first cylindrical shell 42 moved in first lock sleeve 5 from outside to inside, the tapered section of first claw 421 on first cylindrical shell 42 in first gripping sleeve, 5 inner chambers draws in gradually, until firmly blocking plastic pipe, second cylindrical shell 72 also moves in second lock sleeve 8 from outside to inside simultaneously, the tapered section of second claw 721 on second cylindrical shell 72 in second gripping sleeve, 8 inner chambers draws in gradually, until firmly blocking plastic pipe.After two gripping sleeves are all fixed plastic pipe, cutting mechanism can carry out cutting operation to plastic pipe, after cutting finishes, two clamp cylinder piston rod 91 on the cylinders 9 promote respectively coupled on, following two connecting rods 10 are to moving away from the direction that clamps cylinder 9, on, following two connecting rods 10 drive first connecting plate 11 simultaneously and second connecting plate 12 moves to the direction away from clamping cylinder 9, this moment, first cylindrical shell 42 was from inside to outside toward first lock sleeve, 5 outer moving, first claw 421 on first cylindrical shell 42 withdraws from the tapered section in first gripping sleeve, 5 inner chambers gradually, after unclamping plastic pipe, first claw 421 reduces, second cylindrical shell 72 is also from inside to outside toward second lock sleeve, 8 outer moving simultaneously, second claw 721 on second cylindrical shell 72 withdraws from the tapered section in second gripping sleeve, 8 inner chambers gradually, reduce after second claw 721 unclamps plastic pipe, this clamping device has promptly been finished and has once been clamped work.In the said structure, because notch 6 is " V " font wide outside and narrow inside, the gathering amplitude of claw is bigger, so a kind of gripping sleeve of specification can tighten the plastic pipe of multiple different tube diameters, gripping sleeve is when the plastic pipe of chucking different tube diameters, as the caliber of plastic pipe when thick, first cylindrical shell 42 and 72 need of second cylindrical shell move in corresponding first lock sleeve 5 and second lock sleeve, 8 inner chambers thicker position in the tapered section, and claw can firmly block plastic pipe; As the caliber of plastic pipe when thin, first cylindrical shell 42 and 72 need of second cylindrical shell move in corresponding first lock sleeve 5 and second lock sleeve, 8 inner chambers thinner position in the tapered section, and claw can firmly block plastic pipe.
Advantage of the present invention is: owing to be provided with " V " wide outside and narrow inside font notch on the cylindrical shell of gripping sleeve, when unclamping after claw draws in and clamps, it is Well-recovered, long service life again; And the amplitude that the structure of " V " font notch is drawn claw in is bigger, thereby a kind of gripping sleeve of specification can tighten the plastic pipe of plurality of specifications size, has improved utilization rate, has reduced production cost; And only being provided with two clamping cylinders in the clamp mechanism, equipment cost reduces greatly.

Claims (3)

1. clamping device, comprise: mounting bracket, the both sides of mounting bracket upper edge plastic pipe moving direction are respectively arranged with installing plate, be provided with clamp mechanism on the installing plate of each side, the structure of each clamp mechanism is: gripping sleeve that cooperatively interacts and lock sleeve, lock sleeve is fixedly mounted on the installing plate, wherein gripping sleeve comprises head and cylindrical shell, be provided with at least three notches on the described cylindrical shell vertically, described notch makes the outer end portion of cylindrical shell form claw, described cylindrical shell is installed in the inner chamber of lock sleeve, be provided with tapered section in the inner chamber of described lock sleeve, described cylindrical shell is driven by drive unit, and in the inner chamber of lock sleeve, move, and when cylindrical shell from outside to inside in the lock sleeve when mobile, claw draws in and firmly blocks plastic pipe at tapered section, when cylindrical shell from inside to outside outside the lock sleeve when mobile, claw can unclamp and decontrol plastic pipe; It is characterized in that: described notch is " V " shape notch wide outside and narrow inside, the structure of described drive unit is: wherein be set with a pair of clamping cylinder on the installing plate of a side at mounting bracket, clamp the both sides up and down that cylinder lays respectively at clamp mechanism, described two gripping sleeves by this to clamping air cylinder driven.
2. clamping device according to claim 1, it is characterized in that: the concrete syndeton of described clamping cylinder and gripping sleeve is: the end of each cylinder piston rod is provided with connecting rod, on two installing plates of the equal expansion bearing of described connecting rod in mounting bracket, two gripping sleeves are separately fixed on two connecting plates, and every connecting plate is fixed on the connecting rod.
3. clamping device according to claim 1 and 2 is characterized in that: the two ends of tapered section are flat segments in the inner chamber of described lock sleeve.
CN 201110277637 2011-09-19 2011-09-19 Clamping device Expired - Fee Related CN102294707B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110277637 CN102294707B (en) 2011-09-19 2011-09-19 Clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110277637 CN102294707B (en) 2011-09-19 2011-09-19 Clamping device

Publications (2)

Publication Number Publication Date
CN102294707A true CN102294707A (en) 2011-12-28
CN102294707B CN102294707B (en) 2013-06-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223679A (en) * 2013-05-06 2013-07-31 张家港市金远东机械有限公司 Pipe clamping device for PVC pipe production line
CN103331775A (en) * 2013-05-15 2013-10-02 张家港市金远东机械有限公司 Pipe clamping device in PVC pipe production line

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113381A1 (en) * 2001-02-16 2002-08-22 Robert Schroder Gmbh & Co. Kg Clamping jaw
EP1449607A1 (en) * 2003-02-24 2004-08-25 Nikken Kosakusho Works Ltd. Tool holder
CN101362217A (en) * 2008-09-09 2009-02-11 钟树平 Clamping head of blanking machine
CN201253718Y (en) * 2008-09-19 2009-06-10 徐长征 Push-and-pull type clamping device
CN101927508A (en) * 2010-08-12 2010-12-29 胡志全 Clamping device for cutting machine
CN201728388U (en) * 2010-08-11 2011-02-02 刘小利 Tap chuck
CN202292873U (en) * 2011-09-19 2012-07-04 张家港市杰达机械制造有限公司 Clamping device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113381A1 (en) * 2001-02-16 2002-08-22 Robert Schroder Gmbh & Co. Kg Clamping jaw
EP1449607A1 (en) * 2003-02-24 2004-08-25 Nikken Kosakusho Works Ltd. Tool holder
CN101362217A (en) * 2008-09-09 2009-02-11 钟树平 Clamping head of blanking machine
CN201253718Y (en) * 2008-09-19 2009-06-10 徐长征 Push-and-pull type clamping device
CN201728388U (en) * 2010-08-11 2011-02-02 刘小利 Tap chuck
CN101927508A (en) * 2010-08-12 2010-12-29 胡志全 Clamping device for cutting machine
CN202292873U (en) * 2011-09-19 2012-07-04 张家港市杰达机械制造有限公司 Clamping device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223679A (en) * 2013-05-06 2013-07-31 张家港市金远东机械有限公司 Pipe clamping device for PVC pipe production line
CN103223679B (en) * 2013-05-06 2015-06-10 张家港市金远东机械有限公司 Pipe clamping device for PVC pipe production line
CN103331775A (en) * 2013-05-15 2013-10-02 张家港市金远东机械有限公司 Pipe clamping device in PVC pipe production line

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