CN111646161B - Parallel feeding device for thin-wall round tubes - Google Patents
Parallel feeding device for thin-wall round tubes Download PDFInfo
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- CN111646161B CN111646161B CN202010672109.5A CN202010672109A CN111646161B CN 111646161 B CN111646161 B CN 111646161B CN 202010672109 A CN202010672109 A CN 202010672109A CN 111646161 B CN111646161 B CN 111646161B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0276—Tubes and pipes
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Abstract
The invention relates to the technical field of plastic processing, in particular to a thin-wall circular tube parallel feeding device which comprises a rack, a circular tube material fixing mechanism and a circular tube material pushing mechanism, wherein the circular tube material fixing mechanism and the circular tube material pushing mechanism are respectively arranged on the rack; the circular tube material fixing mechanism comprises two first supporting plates which are symmetrically arranged relative to the axis of the frame; the two first supporting plates are parallel to each other, the top of each first supporting plate is provided with first positioning grooves in the direction perpendicular to the axis of the rack, and the first positioning grooves are arranged on the first supporting plates at intervals in the direction parallel to the axis of the rack; two the axis symmetry setting of pipe pushing equipment for the frame, pipe pushing equipment includes servo motor, transfer line, ejector pad, bracing piece, second backup pad and reset spring. The parallel feeding device for the thin-wall circular tubes, provided by the invention, can realize equidistant synchronous feeding of a plurality of groups of thin-wall circular tubes, can adaptively adjust the feeding angle of the thin-wall circular tubes according to the processing requirements, and has the advantages of high efficiency and wide application range.
Description
Technical Field
The invention relates to the technical field of plastic processing, in particular to a thin-wall circular tube parallel feeding device.
Background
In the process of processing the thin-wall round pipe, special feeding equipment is often required to be matched for conveying the pipe fittings. The structure of the feeding equipment is different so as to adapt to different processing procedures of the thin-wall round pipe. The existing feeding equipment has the advantages of simple structure, single function and narrow application range, and is not beneficial to the improvement of the production benefits of enterprises.
Disclosure of Invention
The invention aims to solve the technical problem of providing a parallel feeding device for thin-wall circular tubes, which can realize the equidistant synchronous feeding of a plurality of groups of thin-wall circular tubes and has wide application range.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows: a thin-wall round tube parallel feeding device comprises a rack, and a round tube material fixing mechanism and a round tube material pushing mechanism which are respectively arranged on the rack;
the circular tube material fixing mechanism comprises two first supporting plates which are symmetrically arranged relative to the axis of the frame; the two first supporting plates are parallel to each other, first positioning grooves are formed in the tops of the first supporting plates in the direction perpendicular to the axis of the rack, the first positioning grooves are arranged on the first supporting plates at intervals in the direction parallel to the axis of the rack, and the distance between any two adjacent first positioning grooves is equal;
the two circular tube pushing mechanisms are symmetrically arranged relative to the axis of the rack and comprise servo motors, transmission rods, pushing blocks, supporting rods, second supporting plates and return springs; the servo motor is arranged on the rack, an output shaft of the servo motor is connected with a transmission rod, and the transmission rod is rotatably arranged on the rack along a direction parallel to the axis of the rack; the pushing block is cylindrical and is coaxially connected with the transmission rod, a support column is arranged in the middle of the end face of the pushing block, a first pushing curved surface track is arranged on the side wall of the support column along the circumferential direction, and a second pushing curved surface track is arranged on the end face of the pushing block around the support column;
one end of the supporting rod is supported on a first pushing curved surface track, the first pushing curved surface track is used for controlling the supporting rod to feed in the direction perpendicular to the axis of the rack, one end of the supporting rod abuts against a second pushing curved surface track, and the second pushing curved surface track is used for controlling the supporting rod to feed in the direction parallel to the axis of the rack; when the distance from the contact part of the support rod and the support column to the rotation center of the support column is the largest, the horizontal height of the second support plate is higher than that of the first support plate, and when the distance from the contact part of the support rod and the support column to the rotation center of the support column is the smallest, the horizontal height of the second support plate is lower than that of the first support plate; the feed stroke of the supporting rod in the direction parallel to the axis of the rack is larger than or equal to the distance between the adjacent first positioning grooves;
a first limiting hole is formed in the rack along the direction parallel to the axis of the rack, and the other end of the supporting rod penetrates through the first limiting hole and then is connected with the second supporting plate; one end of the reset spring is connected with the rack, the other end of the reset spring is connected with the supporting rod, and the reset spring is used for keeping one end of the supporting rod to be abutted against the second pushing curved surface track;
a second limiting hole is formed in the rack along the direction perpendicular to the axis of the rack, the second supporting plate is accommodated in the second limiting hole, and the second limiting hole limits the second supporting plate to move on a plane parallel to the axial direction of the rack;
the top of the second support plate is provided with second positioning grooves along the direction perpendicular to the axis of the rack, the second positioning grooves are arranged on the second support plate at intervals along the direction parallel to the axis of the rack, and the distance between any two adjacent second positioning grooves is equal to the distance between any two adjacent first positioning grooves.
Preferably, the cross-sectional shapes of the first positioning groove and the second positioning groove are both isosceles trapezoids.
Preferably, the two servo motors have the same rotating speed and opposite rotating directions.
Preferably, the number of the pushing blocks and the supporting rods which are positioned on any one side of the axis of the rack is two.
Preferably, the parallel material feeding unit of thin wall pipe still includes pneumatic cylinder and supporting seat, the supporting seat is used for installing servo motor, the supporting seat passes through the pneumatic cylinder and is connected with the frame.
Preferably, the servo motor and the hydraulic cylinder are both connected with a power supply.
Preferably, one end of the supporting rod is provided with a supporting cylinder, the side wall of the supporting cylinder is supported on the first pushing curved surface track, the end part of the supporting cylinder is provided with a hemispherical supporting part, and the hemispherical supporting part abuts against the second pushing curved surface track.
Preferably, the rack is provided with a vertical strut and a horizontal strut respectively, the first limiting hole is formed in the vertical strut, and the second limiting hole is formed in the horizontal strut.
Preferably, the first limiting hole and the second limiting hole are both strip-shaped through holes.
Preferably, the surfaces of the first positioning groove and the second positioning groove are both provided with rubber layers.
The parallel feeding device for the thin-wall round tubes has the following beneficial effects: the device feeds materials by matching a circular tube material fixing mechanism and a circular tube material pushing mechanism which are respectively arranged on a rack, the circular tube material fixing mechanism comprises two first supporting plates which are arranged in parallel, a first positioning groove for holding a thin-wall circular tube is arranged on the first supporting plates, two ends of the thin-wall circular tube are respectively erected on the two first supporting plates, two groups of circular tube material pushing mechanisms are arranged on the outer sides of the two first supporting plates in parallel, the circular tube material pushing mechanism comprises a servo motor, a transmission rod, a material pushing block, a supporting rod, a second supporting plate and a reset spring, when the device is used, the transmission rod is driven by the servo motor to rotate, the material pushing block arranged on the transmission rod is driven to concentrically rotate, the supporting rod is jacked in the vertical direction by utilizing a first material pushing curved surface track arranged on the material pushing block supporting column, the lifting motion of the supporting rod is realized, and the supporting, realize the horizontal motion of bracing piece, reset spring is in compression state all the time, thereby guarantee that the bracing piece supports and leans on the ejector pad, the bracing piece drives second backup pad synchronous motion in the motion process, be equipped with the second constant head tank that is used for holding the thin-walled pipe in the second backup pad, when the second backup pad lifts up, the level of second constant head tank is higher than first constant head tank gradually, thereby jack-up the thin-walled pipe, transport to the front end, when the second backup pad falls back, the level of second constant head tank is less than first constant head tank gradually, the thin-walled pipe falls in comparing in another first constant head tank that first constant head tank before leans on before, thereby realize the equidistant gradual pay-off to the front end of arbitrary group thin-walled pipe on first backup pad. In order to ensure the stability and adjustability of feeding, the feeding stroke of the supporting rod in the direction parallel to the axis of the rack is designed to be larger than or equal to the distance between the adjacent first positioning grooves. In order to guarantee the accuracy of the movement of the second supporting plate in the vertical direction and the horizontal direction, the movement of the supporting rod in the horizontal direction is limited by the first limiting hole, and the movement of the second supporting plate in the horizontal direction is limited by the second limiting hole, so that the moving surface of the second supporting plate is always kept on the same vertical surface, and the feeding quality is improved. The two rows of first positioning grooves and the two rows of second positioning grooves are arranged symmetrically at equal intervals, and the thin-wall round pipe group can be fed in different angle directions. The parallel feeding device for the thin-wall circular tubes, provided by the invention, can realize equidistant synchronous feeding of a plurality of groups of thin-wall circular tubes, can adaptively adjust the feeding angle of the thin-wall circular tubes according to the processing requirements, and has the advantages of high efficiency and wide application range.
Drawings
FIG. 1: the structural schematic diagram of the thin-wall circular tube parallel feeding device of the embodiment of the invention;
FIG. 2: a side view of a pusher block of an embodiment of the present invention;
FIG. 3: a top view of the pusher block of an embodiment of the present invention;
description of reference numerals:
1-a frame; 11-a first limit hole; 12-a second limit hole;
2-a circular tube material fixing mechanism; 21-a first support plate; 211-a first positioning groove;
3-circular tube pushing mechanism; 31-a servo motor; 32-a transmission rod; 33-a pusher block; 331-support column; 332-first pusher curved track; 333-a second pushing curved surface track; 34-a support bar; 341-support cylinder; 342-a hemispherical support; 35-a second support plate; 351-a second positioning groove; 36-return spring.
Detailed Description
For a more clear presentation, the invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the thin-walled circular tube parallel feeding device of the present invention includes a frame, and a circular tube material fixing mechanism and a circular tube material pushing mechanism respectively disposed on the frame;
the circular tube material fixing mechanism comprises two first supporting plates which are symmetrically arranged relative to the axis of the frame; the two first supporting plates are parallel to each other, first positioning grooves are formed in the tops of the first supporting plates in the direction perpendicular to the axis of the rack, the first positioning grooves are arranged on the first supporting plates at intervals in the direction parallel to the axis of the rack, and the distance between any two adjacent first positioning grooves is equal;
the two circular tube pushing mechanisms are symmetrically arranged relative to the axis of the rack and comprise servo motors, transmission rods, pushing blocks, supporting rods, second supporting plates and return springs; the servo motor is arranged on the rack, an output shaft of the servo motor is connected with a transmission rod, and the transmission rod is rotatably arranged on the rack along a direction parallel to the axis of the rack; the pushing block is cylindrical and is coaxially connected with the transmission rod, a support column is arranged in the middle of the end face of the pushing block, a first pushing curved surface track is arranged on the side wall of the support column along the circumferential direction, and a second pushing curved surface track is arranged on the end face of the pushing block around the support column;
one end of the supporting rod is supported on a first pushing curved surface track, the first pushing curved surface track is used for controlling the supporting rod to feed in the direction perpendicular to the axis of the rack, one end of the supporting rod abuts against a second pushing curved surface track, and the second pushing curved surface track is used for controlling the supporting rod to feed in the direction parallel to the axis of the rack; when the distance from the contact part of the support rod and the support column to the rotation center of the support column is the largest, the horizontal height of the second support plate is higher than that of the first support plate, and when the distance from the contact part of the support rod and the support column to the rotation center of the support column is the smallest, the horizontal height of the second support plate is lower than that of the first support plate; the feed stroke of the supporting rod in the direction parallel to the axis of the rack is larger than or equal to the distance between the adjacent first positioning grooves;
a first limiting hole is formed in the rack along the direction parallel to the axis of the rack, and the other end of the supporting rod penetrates through the first limiting hole and then is connected with the second supporting plate; one end of the reset spring is connected with the rack, the other end of the reset spring is connected with the supporting rod, and the reset spring is used for keeping one end of the supporting rod to be abutted against the second pushing curved surface track;
a second limiting hole is formed in the rack along the direction perpendicular to the axis of the rack, the second supporting plate is accommodated in the second limiting hole, and the second limiting hole limits the second supporting plate to move on a plane parallel to the axial direction of the rack;
the top of the second support plate is provided with second positioning grooves along the direction perpendicular to the axis of the rack, the second positioning grooves are arranged on the second support plate at intervals along the direction parallel to the axis of the rack, and the distance between any two adjacent second positioning grooves is equal to the distance between any two adjacent first positioning grooves.
As can be seen from the above description, the device feeds materials by matching a circular tube material fixing mechanism and a circular tube material pushing mechanism which are respectively arranged on a frame, the circular tube material fixing mechanism comprises two first supporting plates which are arranged side by side, a first positioning groove for holding a thin-wall circular tube is arranged on the first supporting plate, two ends of the thin-wall circular tube are respectively erected on the two first supporting plates, two groups of circular tube material pushing mechanisms are arranged on the outer sides of the two first supporting plates side by side, the circular tube material pushing mechanism comprises a servo motor, a transmission rod, a material pushing block, a supporting rod, a second supporting plate and a reset spring, when in use, the servo motor drives the transmission rod to rotate, the material pushing block arranged on the transmission rod is driven to concentrically rotate, the supporting rod is jacked up in the vertical direction by utilizing a first material pushing curved surface track arranged on the material pushing block supporting column, the lifting motion of the supporting rod is realized, and, realize the horizontal motion of bracing piece, reset spring is in compression state all the time, thereby guarantee that the bracing piece supports and leans on the ejector pad, the bracing piece drives second backup pad synchronous motion in the motion process, be equipped with the second constant head tank that is used for holding the thin-walled pipe in the second backup pad, when the second backup pad lifts up, the level of second constant head tank is higher than first constant head tank gradually, thereby jack-up the thin-walled pipe, transport to the front end, when the second backup pad falls back, the level of second constant head tank is less than first constant head tank gradually, the thin-walled pipe falls in comparing in another first constant head tank that first constant head tank before leans on before, thereby realize the equidistant gradual pay-off to the front end of arbitrary group thin-walled pipe on first backup pad. In order to ensure the stability and adjustability of feeding, the feeding stroke of the supporting rod in the direction parallel to the axis of the rack is designed to be larger than or equal to the distance between the adjacent first positioning grooves. In order to guarantee the accuracy of the movement of the second supporting plate in the vertical direction and the horizontal direction, the movement of the supporting rod in the horizontal direction is limited by the first limiting hole, and the movement of the second supporting plate in the horizontal direction is limited by the second limiting hole, so that the moving surface of the second supporting plate is always kept on the same vertical surface, and the feeding quality is improved. The two rows of first positioning grooves and the two rows of second positioning grooves are arranged symmetrically at equal intervals, and the thin-wall round pipe group can be fed in different angle directions. The parallel feeding device for the thin-wall circular tubes, provided by the invention, can realize equidistant synchronous feeding of a plurality of groups of thin-wall circular tubes, can adaptively adjust the feeding angle of the thin-wall circular tubes according to the processing requirements, and has the advantages of high efficiency and wide application range.
Optionally, the cross-sectional shapes of the first positioning groove and the second positioning groove are both isosceles trapezoids.
From the above description, it can be known that the first positioning groove and the second positioning groove which are designed by adopting the isosceles trapezoid cross section are beneficial to improving the stability of the feeding operation of the thin-wall circular tube.
Optionally, the rotation speeds of the two servo motors are the same and the rotation directions are opposite.
As can be seen from the above description, the rotating speeds of the two servo motors are the same and the rotating directions are opposite, so that the consistency of the motion states of the two second supporting plates is ensured, and the feeding precision is ensured.
Optionally, the number of the material pushing blocks and the number of the supporting rods which are positioned on any side of the axis of the rack are two.
From the above description, the two sets of the pusher blocks and the support rods are symmetrically arranged to improve the stability and consistency of the feeding operation.
Optionally, the parallel material feeding unit of thin wall pipe still includes pneumatic cylinder and supporting seat, the supporting seat is used for installing servo motor, the supporting seat passes through the pneumatic cylinder and is connected with the frame.
From the above description, the hydraulic cylinder is used to control the lifting of the supporting seat, so that the stepping pushing structure can adapt to different working conditions.
Optionally, one end of the supporting rod is provided with a supporting cylinder, the side wall of the supporting cylinder is supported on the first pushing curved surface track, the end of the supporting cylinder is provided with a hemispherical supporting portion, and the hemispherical supporting portion abuts against the second pushing curved surface track.
As can be seen from the above description, the support cylinders and the hemispherical support portions are respectively supported on the first pushing curved surface rail and the second pushing curved surface rail, and the support columns are fed in the vertical and horizontal directions, so that the control is easy.
Optionally, the rack is provided with a vertical pillar and a horizontal pillar, the first limiting hole is formed in the vertical pillar, and the second limiting hole is formed in the horizontal pillar.
From the above description, the vertical support and the horizontal support have the functions of limiting and guiding, and the stability of feeding operation is improved.
Optionally, the first limiting hole and the second limiting hole are both strip-shaped through holes.
Optionally, the surfaces of the first positioning groove and the second positioning groove are both provided with a rubber layer.
From the above description, the rubber layer functions to increase the friction coefficient to improve the holding stability of the thin-walled circular tube.
Referring to fig. 1 to 3, a first embodiment of the present invention is: a thin-wall round tube parallel feeding device comprises a rack 1, and a round tube material fixing mechanism 2 and a round tube material pushing mechanism 3 which are respectively arranged on the rack 1;
the circular tube material fixing mechanism 2 comprises two first supporting plates 21 which are symmetrically arranged relative to the axis of the frame 1; the two first supporting plates 21 are parallel to each other, the top of each first supporting plate 21 is provided with first positioning grooves 211 along the direction perpendicular to the axis of the rack 1, the first positioning grooves 211 are arranged on the first supporting plates 21 at intervals along the direction parallel to the axis of the rack 1, and the distance between any two adjacent first positioning grooves 211 is equal;
the two circular tube pushing mechanisms 3 are symmetrically arranged relative to the axis of the rack 1, and each circular tube pushing mechanism 3 comprises a servo motor 31, a transmission rod 32, a pushing block 33, a support rod 34, a second support plate 35 and a return spring 36; the servo motor 31 is arranged on the frame 1, an output shaft of the servo motor 31 is connected with a transmission rod 32, and the transmission rod 32 is rotatably arranged on the frame 1 along a direction parallel to the axis of the frame 1; the pushing block 33 is cylindrical, the pushing block 33 is coaxially connected with the transmission rod 32, a supporting column 331 is arranged in the middle of the end face of the pushing block 33, a first pushing curved surface track 332 is arranged on the side wall of the supporting column 331 along the circumferential direction, and a second pushing curved surface track 333 is arranged on the end face of the pushing block 33 around the supporting column 331;
one end of the support rod 34 is supported on a first pushing curved track 332, the first pushing curved track 332 is used for controlling the support rod 34 to feed in the direction perpendicular to the axis of the rack 1, one end of the support rod 34 abuts against a second pushing curved track 333, and the second pushing curved track 333 is used for controlling the support rod 34 to feed in the direction parallel to the axis of the rack 1; when the distance from the contact part of the support bar 34 and the support column 331 to the rotation center of the support column 331 is the largest, the level of the second support plate 35 is higher than the level of the first support plate 21, and when the distance from the contact part of the support bar 34 and the support column 331 to the rotation center of the support column 331 is the smallest, the level of the second support plate 35 is lower than the level of the first support plate 21; the feed stroke of the support rod 34 in the direction parallel to the axis of the frame 1 is larger than or equal to the distance between the adjacent first positioning grooves 211;
a first limiting hole 11 is formed in the rack 1 along a direction parallel to the axis of the rack 1, and the other end of the supporting rod 34 penetrates through the first limiting hole 11 and then is connected with a second supporting plate 35; one end of the return spring 36 is connected with the rack 1, the other end of the return spring 36 is connected with the support rod 34, and the return spring 36 is used for keeping one end of the support rod 34 against the second pushing curved track 333;
a second limiting hole 12 is formed in the rack 1 along a direction perpendicular to the axis of the rack 1, the second supporting plate 35 is accommodated in the second limiting hole 12, and the second limiting hole 12 limits the second supporting plate 35 to move on a plane parallel to the axial direction of the rack 1;
the top of the second supporting plate 35 is provided with second positioning grooves 351 along a direction perpendicular to the axis of the rack 1, the second positioning grooves 351 are arranged on the second supporting plate 35 at intervals along a direction parallel to the axis of the rack 1, and the distance between any two adjacent second positioning grooves 351 is equal to the distance between any two adjacent first positioning grooves 211.
The cross-sectional shapes of the first positioning groove 211 and the second positioning groove 351 are both isosceles trapezoids. The two servo motors 31 have the same rotation speed and opposite rotation directions. The number of the material pushing blocks 33 and the support rods 34 on either side of the axis of the rack 1 is two. The parallel feeding device for the thin-wall round tubes further comprises a hydraulic cylinder and a supporting seat, the supporting seat is used for installing a servo motor 31, and the supporting seat is connected with the rack 1 through the hydraulic cylinder. The servo motor 31 and the hydraulic cylinder are both connected with a power supply. One end of the support rod 34 is provided with a support cylinder 341, the side wall of the support cylinder 341 is supported on the first material pushing curved surface rail 332, the end of the support cylinder 341 is provided with a hemispherical support portion 342, and the hemispherical support portion 342 abuts against the second material pushing curved surface rail 333. The frame 1 is provided with a vertical strut and a horizontal strut respectively, the first limiting hole 11 is arranged on the vertical strut, and the second limiting hole 12 is arranged on the horizontal strut. The first limiting hole 11 and the second limiting hole 12 are both strip-shaped through holes. Rubber layers are arranged on the surfaces of the first positioning groove 211 and the second positioning groove 351.
In summary, the invention feeds materials by matching a circular tube material fixing mechanism and a circular tube material pushing mechanism which are respectively arranged on a frame, the circular tube material fixing mechanism comprises two first supporting plates which are arranged in parallel, a first positioning groove for holding a thin-wall circular tube is arranged on the first supporting plates, two ends of the thin-wall circular tube are respectively erected on the two first supporting plates, two groups of circular tube material pushing mechanisms are arranged on the outer sides of the two first supporting plates in parallel, the circular tube material pushing mechanism comprises a servo motor, a transmission rod, a material pushing block, a supporting rod, a second supporting plate and a reset spring, when in use, the transmission rod is driven by the servo motor to rotate, the material pushing block arranged on the transmission rod is driven to concentrically rotate, the supporting rod is jacked up in the vertical direction by utilizing a first material pushing curved surface track arranged on the material pushing block supporting column, the lifting motion of the supporting rod is realized, and the supporting rod, realize the horizontal motion of bracing piece, reset spring is in compression state all the time, thereby guarantee that the bracing piece supports and leans on the ejector pad, the bracing piece drives second backup pad synchronous motion in the motion process, be equipped with the second constant head tank that is used for holding the thin-walled pipe in the second backup pad, when the second backup pad lifts up, the level of second constant head tank is higher than first constant head tank gradually, thereby jack-up the thin-walled pipe, transport to the front end, when the second backup pad falls back, the level of second constant head tank is less than first constant head tank gradually, the thin-walled pipe falls in comparing in another first constant head tank that first constant head tank before leans on before, thereby realize the equidistant gradual pay-off to the front end of arbitrary group thin-walled pipe on first backup pad. In order to ensure the stability and adjustability of feeding, the feeding stroke of the supporting rod in the direction parallel to the axis of the rack is designed to be larger than or equal to the distance between the adjacent first positioning grooves. In order to guarantee the accuracy of the movement of the second supporting plate in the vertical direction and the horizontal direction, the movement of the supporting rod in the horizontal direction is limited by the first limiting hole, and the movement of the second supporting plate in the horizontal direction is limited by the second limiting hole, so that the moving surface of the second supporting plate is always kept on the same vertical surface, and the feeding quality is improved. The two rows of first positioning grooves and the two rows of second positioning grooves are arranged symmetrically at equal intervals, and the thin-wall round pipe group can be fed in different angle directions. The parallel feeding device for the thin-wall circular tubes, provided by the invention, can realize equidistant synchronous feeding of a plurality of groups of thin-wall circular tubes, can adaptively adjust the feeding angle of the thin-wall circular tubes according to the processing requirements, and has the advantages of high efficiency and wide application range. The first positioning groove and the second positioning groove which are designed by the isosceles trapezoid cross section are favorable for improving the stability of the thin-wall circular tube feeding operation. The rotating speeds of the two servo motors are the same and the rotating directions are opposite, so that the consistency of the motion states of the two second supporting plates is ensured, and the feeding precision is ensured. The stability and consistency of feeding operation are improved by two groups of symmetrically arranged material pushing blocks and supporting rods. The hydraulic cylinder is used for controlling the lifting of the supporting seat, so that the stepping pushing structure can adapt to different working conditions. The supporting cylinders and the hemispherical supporting parts are respectively supported on the first pushing curved surface track and the second pushing curved surface track, and meanwhile, the supporting columns are fed in the vertical direction and the horizontal direction, so that the control is easy. The vertical support and the horizontal support play the roles of limiting and guiding, and the stability of feeding operation is improved. The rubber layer plays the increase coefficient of friction to improve the holding stability of thin wall pipe.
Although the present invention has been described in detail in the foregoing embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The thin-wall circular tube parallel feeding device is characterized by comprising a rack, and a circular tube material fixing mechanism and a circular tube material pushing mechanism which are respectively arranged on the rack;
the circular tube material fixing mechanism comprises two first supporting plates which are symmetrically arranged relative to the axis of the frame; the two first supporting plates are parallel to each other, first positioning grooves are formed in the tops of the first supporting plates in the direction perpendicular to the axis of the rack, the first positioning grooves are arranged on the first supporting plates at intervals in the direction parallel to the axis of the rack, and the distance between any two adjacent first positioning grooves is equal;
the two circular tube pushing mechanisms are symmetrically arranged relative to the axis of the rack and comprise servo motors, transmission rods, pushing blocks, supporting rods, second supporting plates and return springs; the servo motor is arranged on the rack, an output shaft of the servo motor is connected with a transmission rod, and the transmission rod is rotatably arranged on the rack along a direction parallel to the axis of the rack; the pushing block is cylindrical and is coaxially connected with the transmission rod, a support column is arranged in the middle of the end face of the pushing block, a first pushing curved surface track is arranged on the side wall of the support column along the circumferential direction, and a second pushing curved surface track is arranged on the end face of the pushing block around the support column;
one end of the supporting rod is supported on a first pushing curved surface track, the first pushing curved surface track is used for controlling the supporting rod to feed in the direction perpendicular to the axis of the rack, one end of the supporting rod abuts against a second pushing curved surface track, and the second pushing curved surface track is used for controlling the supporting rod to feed in the direction parallel to the axis of the rack; when the distance from the contact part of the support rod and the support column to the rotation center of the support column is the largest, the horizontal height of the second support plate is higher than that of the first support plate, and when the distance from the contact part of the support rod and the support column to the rotation center of the support column is the smallest, the horizontal height of the second support plate is lower than that of the first support plate; the feed stroke of the supporting rod in the direction parallel to the axis of the rack is larger than or equal to the distance between the adjacent first positioning grooves;
a first limiting hole is formed in the rack along the direction parallel to the axis of the rack, and the other end of the supporting rod penetrates through the first limiting hole and then is connected with the second supporting plate; one end of the reset spring is connected with the rack, the other end of the reset spring is connected with the supporting rod, and the reset spring is used for keeping one end of the supporting rod to be abutted against the second pushing curved surface track;
a second limiting hole is formed in the rack along the direction perpendicular to the axis of the rack, the second supporting plate is accommodated in the second limiting hole, and the second limiting hole limits the second supporting plate to move on a plane parallel to the axial direction of the rack;
the top of the second support plate is provided with second positioning grooves along the direction perpendicular to the axis of the rack, the second positioning grooves are arranged on the second support plate at intervals along the direction parallel to the axis of the rack, and the distance between any two adjacent second positioning grooves is equal to the distance between any two adjacent first positioning grooves.
2. The parallel feeding device of thin-walled circular tubes as claimed in claim 1, wherein the cross-sectional shapes of the first positioning groove and the second positioning groove are isosceles trapezoids.
3. The parallel feeding device of thin-walled circular tubes as claimed in claim 1, wherein the two servo motors have the same rotation speed and opposite rotation directions.
4. The thin-walled circular tube parallel feeding device as claimed in claim 1, wherein the number of the pusher blocks and the support rods located on either side of the axis of the frame is two.
5. The parallel feeding device of thin-walled circular tubes of claim 1, further comprising a hydraulic cylinder and a support seat, wherein the support seat is used for mounting a servo motor, and the support seat is connected with the frame through the hydraulic cylinder.
6. The parallel feeding device of thin-walled circular tubes as claimed in claim 5, wherein the servo motor and the hydraulic cylinder are connected with a power supply.
7. The parallel feeding device of the thin-walled circular tubes as claimed in claim 1, wherein one end of the supporting rod is provided with a supporting cylinder, the side wall of the supporting cylinder is supported on the first pushing curved surface rail, the end part of the supporting cylinder is provided with a hemispherical supporting part, and the hemispherical supporting part abuts against the second pushing curved surface rail.
8. The parallel feeding device of thin-walled circular tubes as claimed in claim 1, wherein the rack is provided with a vertical pillar and a horizontal pillar, the first limiting hole is provided on the vertical pillar, and the second limiting hole is provided on the horizontal pillar.
9. The parallel feeding device of thin-walled circular tubes as claimed in claim 1, wherein the first and second limiting holes are both strip-shaped through holes.
10. The parallel feeding device of thin-walled circular tubes as claimed in claim 1, wherein the surfaces of the first positioning groove and the second positioning groove are provided with rubber layers.
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