CN114713896B - Automatic planing device for outer back of knitting needle of circular knitting machine - Google Patents
Automatic planing device for outer back of knitting needle of circular knitting machine Download PDFInfo
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- CN114713896B CN114713896B CN202210643568.XA CN202210643568A CN114713896B CN 114713896 B CN114713896 B CN 114713896B CN 202210643568 A CN202210643568 A CN 202210643568A CN 114713896 B CN114713896 B CN 114713896B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D7/00—Planing or slotting machines characterised only by constructional features of particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
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Abstract
The utility model relates to an automatic planing device of circular knitting machine knitting needle back of body relates to system needle equipment field, it includes the frame, the frame is equipped with the planer tool that is used for planing the needle base, a drive arrangement for driving planer tool reciprocating motion, a mounting that is used for controlling the needle base and is close to the feed mechanism of planer tool one by one and is used for compressing tightly the needle base, the planer tool is equipped with the connecting piece that is used for being connected with drive arrangement outward, the air cavity has been seted up to the connecting piece, the air cavity intercommunication has external air supply, the connecting piece is seted up towards the first gas pocket of planer tool cutting edge and towards the second gas pocket of needle base back of body, first gas pocket and second gas pocket all communicate with the air cavity, the perpendicular direction of the skew planer tool planing direction of cutting edge of planer tool, the process of cutting to the needle base is the oblique angle cutting. This application is at the planing in-process, and compressed gas blows clean the piece of planer tool cutting edge and the outer back surface of the needle blank department adhesion of second gas pocket from first gas pocket, has the influence that reduces follow-up planer tool and remove to the machining precision to improve the effect of planing precision.
Description
Technical Field
The application relates to the field of needle making equipment, in particular to an automatic planing device for the outer back of a knitting needle of a circular knitting machine.
Background
Circular knitting needles are a common type of needle, in the form of an elongated sheet, mainly used in circular knitting machines. The circular knitting machine knitting needle has a complex forming process due to the special structure; and the quality of the knitting needle of the circular knitting machine directly influences the forming quality of the fabric, once the surface of the knitting needle of the circular knitting machine is provided with structures such as burrs and the like, the knitting line is easy to cut off, so that the quality requirement of the knitting needle of the circular knitting machine is high.
In the related art, the side of the circular knitting machine needle contacting with the knitting line when in use is often called as the outer back, and currently, the outer back of the formed needle blank is generally processed in a planing mode in the processing of the circular knitting machine needle, so that the outer back of the circular knitting machine needle is smooth, and the phenomenon that the outer back contacts with the knitting line and then cuts off the knitting line is reduced. The planing device of the outer back of the knitting needle of the existing circular knitting machine generally controls a planing tool to rapidly reciprocate at the outer back to achieve planing.
In view of the above-mentioned related technologies, the inventor found that a large amount of metal chips are generated during the planing process of the planer tool moving rapidly, part of the fine chips are easy to adhere to the surface of the planer tool or the outer back surface of the needle blank under the influence of static electricity and the like, and the surface of the needle blank is easy to be scratched during the subsequent movement of the planer tool, thereby affecting the planing precision.
Disclosure of Invention
In order to improve the planing precision, this application provides a circular knitting machine knitting needle back of body automatic planing device.
The application provides an automatic planing device in back of body outside circular knitting machine knitting needle adopts following technical scheme:
the utility model provides an automatic planing device of circular knitting machine knitting needle back of body, which comprises a frame, the frame is equipped with the planer tool that is used for planing the needle base, is used for driving planer tool reciprocating motion's drive arrangement, is used for controlling the needle base and is close to the feed mechanism of planer tool one by one and is used for compressing tightly the mounting of needle base, and the planer tool is equipped with the connecting piece that is used for being connected with drive arrangement outward, and the air cavity has been seted up to the connecting piece, and the air cavity intercommunication has external air supply, and the connecting piece is seted up towards the first air pocket of planer tool cutting edge and towards the second air pocket of the needle base back of body, and first air pocket and second air pocket all communicate with the air cavity, the skew planer tool planing direction's of cutting vertical direction of cutting of the cutting process of planer tool to the needle base, for the bevel cutting.
Through adopting above-mentioned technical scheme, feed mechanism control needle base is close to the planer tool one by one, and make the outer back of needle base be close to the cutting edge of planer tool, drive arrangement drives planer tool along the length direction reciprocating motion of needle base through the connecting piece, and then the outer back is planed, external air supply supplies compressed gas to the air cavity in simultaneously, make compressed gas blow to the outer back of planer tool cutting edge and needle base from first gas pocket and second gas pocket, in time blow the piece of planer tool cutting edge and needle base outer back of the body department adhesion clean, reduce the influence of follow-up planer tool removal to machining precision, with improvement planing precision, the cutting oblique angle is when improving planer tool life, can make the piece that processing produced discharge along the direction of planer tool cutting edge, be favorable to arranging the piece of processing, and then improve planing precision.
Optionally, the frame is equipped with the supporting network, and the supporting network is located the planer tool below, and the frame is equipped with the waste material basket, and the waste material basket is located the supporting network below, and the waste material basket intercommunication has the fan.
By adopting the technical scheme, the needle blanks after being planed and the scraps generated by processing fall in the same direction of the supporting net, the needle blanks are intercepted by the supporting net, and most of the smaller scraps fall below the supporting net, so that a user can conveniently and intensively take the needle blanks; meanwhile, the fan enables the area near the supporting net to form airflow blowing to the lower side of the supporting net, the phenomenon that chips fly in disorder due to the fact that gas blown out of the first air holes and the second air holes can be reduced, the chips are not prone to being adhered to the planing tool or the needle blank again, and machining precision is improved.
Optionally, the air cavity is communicated with an external air source through an air pipe, the air pipe is provided with a spacer block, the spacer block is in sliding connection with the air pipe along the radial direction of the air pipe, and the spacer block is provided with a partition part for partitioning two ends of the air pipe and a communicating part for communicating the two sections of the air pipe.
By adopting the technical scheme, a user can control the relative sliding of the spacer block and the air pipe by pressing down the spacer block, the partition part and the communicating part are switched, the opening and closing of the air pipe are further switched, and the structure is simple and the operation is convenient.
Optionally, the driving device comprises a straight rod for supporting the connecting piece, the straight rod is connected with the rack in a sliding mode along the planing direction of the planer tool, a first spring is arranged at one end of the spacer block, the other end of the spacer block is abutted to the straight rod, the partition part partitions two ends of the air pipe under the natural state of the first spring, a boss is fixedly arranged at one end, away from the connecting piece, of the straight rod, and the communicating part communicates two ends of the air pipe when the spacer block is abutted to the boss.
By adopting the technical scheme, when the straight rod drives the planer tool to reciprocate until the boss is abutted against the spacer block, the two ends of the air pipe can be communicated by the communicating part, so that the air pipe is in an open state, and automatic air injection is realized when the first air hole and the second air hole are planed; when the cutting is stopped, the straight rod is abutted to the end, far away from the boss, of the straight rod, and the partition blocks enable the air pipe to be automatically closed under the action of the first spring, so that the air pipe does not need to be manually opened or closed, manpower is saved, and the degree of automation is higher.
Optionally, the connecting piece is connected with the straight rod in a sliding manner, the rack is connected with the pushing block in a sliding manner, the sliding direction of the pushing block is the same as that of the connecting piece, when the connecting piece is located between the pushing block and the needle blank, one end, away from the cutting edge of the planer tool, of the connecting piece is abutted to the pushing block, and the straight rod is provided with a second spring which is used for enabling the connecting piece and the pushing block to be always abutted to each other.
Through adopting above-mentioned technical scheme, when the ejector pad is close to the needle base, promote the planer tool through the connecting piece and be close to the needle base and carry out the planing, when the planer tool returns, the ejector pad is kept away from the needle base, and the planer tool keeps away from the needle base under the effect of second spring in step, is difficult for because of the outer back of the needle base after the piece fish tail is planed, is favorable to improving machining precision.
Optionally, one end of the connecting piece close to the pushing block is rotatably connected with a roller, and the roller is abutted against the pushing block.
Through adopting above-mentioned technical scheme, be the rolling friction of gyro wheel between ejector pad and the connecting piece, the wearing and tearing of reducible part, increase of service life, noise in the reducible course of working simultaneously.
Optionally, the external air source adopts low-temperature cold air.
Through adopting above-mentioned technical scheme, at the in-process of needle base processing, low temperature air conditioning can play the cooling effect to the planer tool in step when clearing up the piece, is convenient for realize long-time continuous work.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the feeding mechanism controls the needle blanks to be close to the planing tools one by one, the outer backs of the needle blanks are close to the cutting edges of the planing tools, the driving device drives the planing tools to reciprocate along the length direction of the needle blanks through the connecting piece, and then planing the outer backs, meanwhile, compressed gas is supplied into the air cavity by an external gas source, so that the compressed gas is blown to the planing tool cutting edges and the outer backs of the needle blanks from the first air holes and the second air holes, chips adhered to the planing tool cutting edges and the outer back surfaces of the needle blanks are blown off in time, the influence of subsequent planing tool movement on machining precision is reduced, the planing precision is improved, oblique angle cutting can discharge the chips generated by machining along the direction of the planing tool cutting edges while the service life of the planing tools is prolonged, the machining chips are discharged completely, and the planing precision is improved;
2. the shaved needle blank and the scraps generated by processing fall in the same direction of the supporting net, the needle blank is intercepted by the supporting net, and most of the smaller scraps fall below the supporting net, so that a user can conveniently and intensively take the needle blank; meanwhile, the fan enables the area near the supporting net to form airflow blowing to the lower side of the supporting net, the phenomenon that chips fly in disorder due to the fact that gas blown out of the first air holes and the second air holes can be reduced, the chips are not prone to being adhered to the planing tool or the needle blank again, and machining precision is improved.
Drawings
Fig. 1 is a schematic front view of the overall structure of the embodiment of the present application.
FIG. 2 is a schematic partial cross-sectional view of the trachea in relation to the straight rod according to an embodiment of the present application.
Fig. 3 is a schematic view of the overall structure of the back surface of the embodiment of the present application.
FIG. 4 is a schematic sectional view showing the moving path of the needle blank according to the embodiment of the present application.
FIG. 5 is a schematic view showing the relative positions of the straight bar and the spacer blocks according to the embodiment of the present application.
Fig. 6 is a partial schematic view highlighting a connector portion of an embodiment of the present application.
FIG. 7 is a schematic sectional view highlighting the location of a blower according to an embodiment of the present application.
Description of reference numerals: 100. needle blank; 1. a frame; 11. a material storage rack; 2. planing; 3. a straight rod; 31. an annular hoop; 32. a boss; 4. pushing the plate; 5. briquetting; 6. a cleaning mechanism; 61. an air tube; 611. a rigid straight tube; 612. a spiral hose; 613. a spacer block; 6131. a partition part; 6132. a communicating portion; 614. a first spring; 615. connecting blocks; 62. a connecting member; 621. an air cavity; 622. a first air hole; 623. a second air hole; 624. a second spring; 625. a roller; 7. a waste basket; 71. a support net; 72. a discharge channel; 721. a fan; 8. and (7) pushing the block.
Detailed Description
The present application is described in further detail below with reference to all of the figures.
The embodiment of the application discloses automatic planing device of circular knitting machine knitting needle back.
Referring to fig. 1 and 2, an automatic planing device for the outer back of a knitting needle of a circular knitting machine comprises a rack 1, wherein a storage rack 11, a feeding mechanism, a fixing piece, a planing tool 2 and a driving device are mounted on the rack 1, a user places a plurality of needle blanks 100 in the storage rack 11, the needle blanks 100 in the storage rack 11 are pushed to the planing tool 2 one by the feeding mechanism, the needle blanks 100 are pressed and limited by the fixing piece, and then the driving device drives the planing tool 2 to reciprocate along the length direction of the needle blanks 100 while contacting with the outer back of the needle blanks 100, so that planing on the needle blanks 100 is realized; install near planer tool 2 and clean the structure, clean mechanism 6 in time clears up the piece at the in-process of planing, reduces the influence of piece to the machining precision.
Referring to fig. 3 and 4, the material storage rack 11 is provided with a vertical groove, the cross section of the vertical groove is matched with the shape of the needle blanks 100, a user arranges a plurality of needle blanks 100 to be processed into a vertical row and places the vertical row in the vertical groove, a space with the thickness of the needle blanks 100 is reserved between the lower end part of the material storage rack 11 and the plane where the feeding mechanism is located, and the needle blanks 100 at the lowest part of the material storage rack 11 automatically fall into the space under the action of gravity, so that the feeding mechanism can feed the needle blanks 100 for planing.
Referring to fig. 2 and 4, the feeding mechanism includes a push plate 4 and a first power part for pushing the push plate 4 to reciprocate, the first power part can be a cylinder, a cam or a rack and pinion to realize linear reciprocating movement, in this embodiment, a telescopic cylinder is adopted, a piston rod of the telescopic cylinder is fixedly connected with the push plate 4, and a user can drive the push plate 4 to reciprocate by controlling the piston rod of the telescopic cylinder to stretch; the axis of the first power component piston rod is arranged along the direction close to or far away from the planer tool 2, and when the first power component piston rod extends, the push plate 4 is close to the planer tool 2.
Referring to fig. 2 and 4, the thickness of the push plate 4 is the same as that of the needle blank 100, the needle blank 100 falling below the material storage rack 11 is located on a reciprocating path of the push plate 4, when the first power part piston rod extends, the push plate 4 slides to the lower side of the material storage rack 11 to push out the needle blank 100 at the position to a position close to the planer tool 2 for feeding, then the first power part piston rod contracts to drive the push plate 4 to retreat out of the lower side of the material storage rack 11, at this time, the new needle blank 100 automatically falls below the material storage rack 11, namely, on the moving path of the push plate 4, and the next reciprocating movement of the push plate 4 can repeat the above steps to feed the new needle blank 100 and push out the needle blank 100 which is planed in the previous step for discharging. During the two times of feeding of the push plate 4, the fixing member presses the needle blank 100 close to the planing tool 2 to perform the planing process of the needle blank 100.
Referring to fig. 2 and 4, the mounting includes briquetting 5 and the second power piece that drives briquetting 5 and go up and down, briquetting 5 is located the top of the needle base 100 that is close to planer tool 2, the second power piece is the same with first power piece, this embodiment also adopts telescopic cylinder, the vertical downward setting of piston rod of second power piece, briquetting 5 is fixed on the piston rod of second power piece, the piston rod extension of second power piece can drive briquetting 5 and descend, the lower terminal surface that makes briquetting 5 will be close to the needle base 100 of planer tool 2 and compress tightly, the up end and the 5 butt of briquetting of this needle base 100, lower terminal surface and 1 butt of frame, be difficult for regenerating and remove, the outer back of this needle base 100 is towards the one side that is close to planer tool 2 removal route this moment, drive arrangement drives planer tool 2 and removes and can carry out the planing outward.
Referring to fig. 1 and 2, the driving device includes a straight rod 3 and a third power component for driving the straight rod 3 to reciprocate along the length direction of the straight rod, the third power component is the same as the first power component, in this embodiment, a telescopic cylinder is adopted, the straight rod 3 is horizontally arranged along the length direction of the rack 1 and is parallel to the needle blank 100, a piston rod of the third power component is fixedly connected with one end of the straight rod 3, the piston rod of the third power component can stretch and retract to drive the straight rod 3 to reciprocate along the length direction of the needle blank 100, and when the piston rod of the third power component extends, the cutting edge of the planer tool 2 gradually approaches to the needle blank 100 along the length direction of the needle blank 100.
Referring to fig. 1 and 2, when the planing tool 2 is not in contact with the needle blank 100, the planing state is temporarily not entered, and no chips are generated, so that the cleaning mechanism 6 is not required to clean the chips, and stopping the cleaning mechanism 6 when the planing is not performed can reduce the processing cost. The cleaning mechanism 6 comprises an air pipe 61 and a connecting piece 62, an air cavity 621 is arranged in the connecting piece 62, one end of the air pipe 61 is communicated with the air cavity 621, the other end of the air pipe is communicated with an external air source, the external air source can adopt compressed air supply equipment such as an air pump and the like, and compressed air can be supplied into the air cavity 621 through the air pipe 61.
Referring to fig. 2, one end of the air pipe 61, which is far away from the connecting piece 62, adopts a hard straight pipe 611, and the other end adopts a spiral hose 612, and the hard straight pipe 611 is fixedly installed on the frame 1 and is arranged in parallel with the straight rod 3; the hard straight pipe 611 is divided into two sections, a rectangular connecting block 615 is installed between the two sections of hard straight pipes 611, a spacer block 613 is connected in the connecting block 615 in a sliding mode along the radial direction of the hard straight pipes 611, one end of the spacer block 613 extends out of the connecting block 615 and is abutted to one side of the straight rod 3; one end of the partition block 613, which is close to the straight rod 3, is provided with a communicating portion 6132, the other end of the partition block 613 is provided with a partition portion 6131, and one end of the partition block 613, which is close to the partition portion 6131, is provided with a first spring 614, when the planing tool 2 is not in contact with the needle blank 100, the first spring 614 is in a natural state, at this time, the partition portion 6131 partitions the two sections of the hard straight tubes 611, gas of an external gas source cannot be supplied into the air cavity 621, and at this time, the cleaning mechanism 6 is in a closed state.
Referring to fig. 2 and 5, a boss 32 is integrally formed at one end of the straight rod 3 away from the connecting member 62, the boss 32 is located at one side of the straight rod 3 close to the spacer block 613, in the process of extending the piston rod of the third power member, the spacer block 613 and the straight rod 3 relatively slide, and the spacer block 613 gradually approaches the boss 32; when the planing tool 2 starts planing, the separation block 613 abuts against the boss 32, at this time, the separation block 613 slides in a direction away from the straight rod 3 under the action of the boss 32, so that the separation block 613 compresses the first spring 614, the communicating part 6132 enters the connecting block 615, the communicating part 6132 is provided with a through hole arranged along the length direction of the air pipe 61, the communicating part 6132 enables the two sections of hard straight pipes 611 to be communicated at the connecting block 615 under the action of the through hole, compressed air of an external air source is further smoothly introduced into the air cavity 621, the cleaning mechanism 6 is automatically in an open state, and a user does not need to manually open and close the cleaning mechanism 6.
Referring to fig. 2 and 6, the connecting member 62 is a sleeve shape sleeved outside the planer tool 2, the connecting member 62 is provided with a first air hole 622 facing the cutting edge of the planer tool 2 and a second air hole 623 facing the outer back of the needle blank 100, both the first air hole 622 and the second air hole 623 are communicated with the air cavity 621, the air in the air cavity 621 is ejected to the outside of the connecting member 62 through the first air hole 622 and the second air hole 623, the air ejected from the first air hole 622 blows and cleans the chips adhered to the cutting edge of the planer tool 2, and the influence of the chips remained on the surface of the planer tool 2 on the planing precision can be effectively reduced; meanwhile, the second air hole 623 blows and cleans the chips adhered to the outer back of the needle blank 100, and when the planing tool 2 planes the outer back of the needle blank 100 repeatedly, the processing precision is not easily affected by the chips remained on the surface of the needle blank 100.
Referring to fig. 1 and 6, the cutting edge of the planer tool 2 is obliquely arranged, and the included angle between the cutting edge and the planing direction is 60 degrees, and since the cutting edge deviates from the vertical direction of the planing direction of the planer tool 2, the cutting process of the planer tool 2 on the needle blank 100 is bevel cutting, which is a common concept in cutting; and because the cutting edge of planer tool 2 is the tilt state, can play the guide effect to the piece that the planing produced, make the piece fly out along the direction of cutting edge, reduce the phenomenon that the piece splashes in disorder.
Referring to fig. 2 and 7, a scrap collecting mechanism is installed below the planing position of the planing tool 2, and the scrap collecting mechanism cleans the chippings generated by planing in time, and the chippings generated by planing are not easy to splash near the needle blank 100 due to the flow of air. The waste collecting mechanism comprises a supporting net 71, a waste basket 7 and a fan 721, the waste basket 7 is located below the needle blanks 100 located at the planing positions, basket openings face upwards, the supporting net 71 is installed at the basket openings at the upper end of the waste basket 7, the processed chips and the workpieces pushed out after the planing is completed fall on the supporting net 71 under the action of gravity, the mesh number of the supporting net 71 is small, the needle blanks 100 can be intercepted, most of the small chips can pass through the supporting net 71 and fall into the waste basket 7, and when a user collects the needle blanks 100 planed on the supporting net 71, the chips are not easy to mix.
Referring to fig. 7, a discharge channel 72 is communicated between the waste basket 7 and the outside of the rack 1, and when the fan 721 is in an operating state, the fan drives the gas in the waste basket 7 to move to the outside of the rack 1 through the discharge channel 72, and the air near the planing position flows into the waste basket 7 through the support net 71 by using the negative pressure principle, so that the collection effect of the debris is improved; meanwhile, the scraps in the waste basket 7 can be moved and discharged out of the machine frame 1 through the discharge channel 72 under the action of air flow, manual cleaning is not needed, and the equipment can run for a long time.
Referring to fig. 2 and 6, the air supplied to the air pipe 61 may be cooled by air cooling in the external air source, so that the air blown from the first air hole 622 and the second air hole 623 is low temperature air, and the air is cooled while cleaning the chips, thereby reducing the temperature of the planer tool 2, reducing the temperature rise of the planer tool 2 caused by continuous planing, and prolonging the service life of the planer tool 2.
Referring to fig. 1 and 2, when the piston rod of the third power member is retracted, the planing tool 2 returns, and at this time, the planing action of the planing tool 2 on the needle blank 100 stops, and the machine frame 1 is provided with an avoiding mechanism, and under the action of the avoiding mechanism, the planing tool 2 can be far away from the needle blank 100 in the process of returning and does not contact with the outer back of the needle blank 100 any more. Dodge the fourth power spare that the mechanism includes ejector pad 8 and drive ejector pad 8 along the width direction reciprocating motion of frame 1, and the fourth power spare is similar with first power spare, selects telescopic cylinder equally, and ejector pad 8 is along 1 width direction of frame and 1 sliding connection of frame, and the piston rod and the ejector pad 8 fixed connection of fourth power spare, and the flexible width direction that can drive ejector pad 8 along frame 1 of fourth power spare piston rod removes.
Referring to fig. 1 and 6, straight-bar 3 is close to the one end fixed mounting of connecting piece 62 has annular clamp 31, connecting piece 62 sliding connection is in annular clamp 31, when the piston rod extension of third power piece drives planer tool 2 planing through connecting piece 62, the piston rod of fourth power piece is also in the extension state, push pedal 4 is relatively nearer apart from needle base 100 this moment, the one end rotation that connecting piece 62 deviates from needle base 100 is connected with gyro wheel 625, the surface of revolution and the ejector pad 8 butt of gyro wheel 625, connecting piece 62 drives planer tool 2 and is in the nearer state apart from needle base 100 this moment.
Referring to fig. 1, in the process of extending the piston rod of the third power element, the connecting element 62 and the push block 8 move relatively in the length direction of the frame 1, and at this time, the roller 625 rotates to reduce the friction resistance from the push block 8 during the moving process of the connecting element 62, so that the service life is long.
Referring to fig. 1 and 2, when the piston rod of the third power member retracts to return the planing tool 2, the piston rod of the fourth power member also retracts, the pushing block 8 is moved in the direction away from the needle blank 100, the second spring 624 is installed on the side of the connecting member 62 away from the needle blank 100, one end of the second spring 624 close to the needle blank 100 abuts against the annular hoop 31, and the other end of the second spring 624 abuts against the connecting member 62, in the planing process of the planing tool 2, the second spring 624 is in a compressed state, after the pushing block 8 moves away from the needle blank 100, the elastic acting force of the second spring 624 makes the connecting member 62 move in the direction away from the needle blank 100, so that the roller 625 always abuts against the pushing block 8, and at the same time, the planing tool 2 is away from the needle blank 100 along with the connecting member 62 and is not in contact with the outer back of the needle blank 100.
Referring to fig. 1 and 6, since the planing tool 2 is no longer in contact with the outer back of the needle blank 100 in the return process, even if some chips are still accidentally left between the planing tool 2 and the outer back of the needle blank 100, the scraping precision is improved because the chips are not easily extruded and rubbed against the outer back due to the movement of the planing tool 2.
The implementation principle of the automatic planing device for the outer back of the knitting needle of the circular knitting machine is as follows: after the needle blank 100 is pressed by the fixing part, the piston rod of the third power part extends to drive the straight rod 3 to move, meanwhile, the piston rod of the fourth power part extends to enable the planing tool 2 to be in contact with the needle blank 100, at the moment, the boss 32 on the side surface of the straight rod 3 extrudes the spacer block 613 to enable the air pipe 61 to be communicated, and compressed air is sprayed from the first air hole 622 and the second air hole 623 to clean the surface of the planing tool 2 and the outer back of the needle blank 100; when the piston rod of the third power part contracts to drive the planing tool 2 to return, the piston rod of the fourth power part contracts synchronously, the planing tool 2 does not contact with the outer back of the needle blank 100 under the action of the second spring 624, the planing tool 2 is cleaned by compressed gas from the residual scraps on the surface of the needle blank 100, the planing tool 2 does not contact with the needle blank 100 any more during the return, the smoothness of the outer back of the needle blank is not easily influenced by the adhesion of the scraps, and the planing precision is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The utility model provides an automatic planing device in back of body of circular knitting machine knitting needle, includes frame (1), its characterized in that: the needle blank cutting machine is characterized in that the rack (1) is provided with a planing tool (2) for planing a needle blank (100), a driving device for driving the planing tool (2) to move in a reciprocating manner, a feeding mechanism for controlling the needle blank (100) to be close to the planing tool (2) one by one and a fixing piece for pressing the needle blank (100), a connecting piece (62) for being connected with the driving device is arranged outside the planing tool (2), the connecting piece (62) is provided with an air cavity (621), the air cavity (621) is communicated with an external air source, the connecting piece (62) is provided with a first air hole (622) facing the cutting edge of the planing tool (2) and a second air hole (623) facing the outer back of the needle blank (100), the first air hole (622) and the second air hole (623) are both communicated with the air cavity (621), the planing tool (2) deviates from the vertical direction of the planing tool (2), and the cutting process of the planing tool (2) for the needle blank (100) is bevel cutting;
the air cavity (621) is communicated with an external air source through an air pipe (61), the air pipe (61) is provided with a separation block (613), the separation block (613) is in sliding connection with the air pipe (61) along the radial direction of the air pipe (61), and the separation block (613) is provided with a partition part (6131) for partitioning two ends of the air pipe (61) and a communication part (6132) for communicating two sections of the air pipe (61);
the driving device comprises a straight rod (3) used for supporting the connecting piece (62), the straight rod (3) is connected with the rack (1) in a sliding mode along the planing direction of the planer tool (2), one end of the spacer block (613) is provided with a first spring (614), the other end of the spacer block is abutted to the straight rod (3), the first spring (614) is in a natural state, the two ends of the air pipe (61) are separated by a separating part (6131), the boss (32) is fixedly arranged at one end, far away from the connecting piece (62), of the straight rod (3), and when the spacer block (613) is abutted to the boss (32), the two ends of the air pipe (61) are communicated through a communicating part (6132).
2. The automatic planing device for the outer back of the knitting needle of the circular knitting machine as claimed in claim 1, wherein: frame (1) is equipped with supporting mesh (71), and supporting mesh (71) are located planer tool (2) below, and frame (1) is equipped with waste basket (7), and waste basket (7) are located supporting mesh (71) below, and waste basket (7) intercommunication has fan (721).
3. The automatic planing device for the outer back of the knitting needle of the circular knitting machine as claimed in claim 1, wherein: connecting piece (62) and straight-bar (3) sliding connection, frame (1) sliding connection has ejector pad (8), and the slip direction of ejector pad (8) is the same with connecting piece (62), and when connecting piece (62) were in between ejector pad (8) and needle base (100), one end and ejector pad (8) butt that connecting piece (62) deviate from planer tool (2) cutting edge, and straight-bar (3) are equipped with second spring (624) that are used for making connecting piece (62) and ejector pad (8) butt all the time.
4. The automatic planing device for the outer back of the knitting needle of the circular knitting machine as claimed in claim 3, wherein: one end of the connecting piece (62) close to the push block (8) is rotatably connected with a roller (625), and the roller (625) is abutted against the push block (8).
5. The automatic planing device for the outer back of the knitting needle of the circular knitting machine as claimed in claim 1, wherein: the external air source adopts low-temperature cold air.
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| CN202210643568.XA CN114713896B (en) | 2022-06-09 | 2022-06-09 | Automatic planing device for outer back of knitting needle of circular knitting machine |
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| CN118951121B (en) * | 2024-10-14 | 2025-01-07 | 烟台永昌精密织针有限公司 | Groove needle planing equipment of warp knitting machine |
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