CN111872287B - Non-woven flocking needle multi-surface tooth pressing forming equipment and process - Google Patents

Abstract

The invention belongs to the technical field of non-woven value pile needle processing equipment, in particular to non-woven flocking needle multi-face tooth press forming equipment and a non-woven flocking needle multi-face tooth press forming process, wherein the non-woven value pile needle multi-face tooth press forming equipment comprises an installation mechanism, a punching mechanism, a supporting mechanism and a clamping mechanism, the installation mechanism comprises a bottom plate and a top plate positioned above the bottom plate, four corners of the top surface of the bottom plate are fixedly connected with guide pillars, and the top plate is fixed on the top surfaces of the guide pillars; when the centre gripping location, it is inboard directly to insert three cardboard with needle body rhombus post position, the location is comparatively quick accurate, when carrying out the compression moulding, the cardboard, needle body rhombus post position all joints in last draw-in groove and lower draw-in groove, and protect the piece to fix a position the support to needle body rhombus post position by protecting the piece down with last, the effectual needle body rhombus post position that prevents takes place bending deformation when receiving the die cutting power, improve processingquality and machining precision, and drive the cardboard rotation on the rotor plate through step motor, the quick accurate corresponding limit of switching needle body rhombus post, production machining efficiency is higher.

Description

Non-woven flocking needle multi-surface tooth pressing forming equipment and process

Technical Field

The invention belongs to the technical field of non-woven flocking needle processing equipment, and particularly relates to non-woven flocking needle multi-face tooth pressing forming equipment and a non-woven flocking needle multi-face tooth pressing forming process.

Background

The weaving principle is a general name taken from spinning and weaving, but with the continuous development and improvement of a weaving knowledge system and a subject system, particularly after non-woven textile materials, three-dimensional compound weaving and other technologies are produced, the existing weaving not only is the traditional hand-made spinning and weaving, but also comprises a non-woven fabric technology, and when the non-woven fabric is flocked, a flocking needle is required to carry out flocking.

The conventional nonwoven flocking needle multi-faceted tooth press forming equipment can not comprehensively support a needle body when performing press forming, and the needle body is very easy to bend and deform and even break when receiving punching force, so that the production quality and the production precision are low, and the high-precision requirement of the market can not be met.

Disclosure of Invention

To solve the problems set forth in the background art described above. The invention provides a device and a process for press forming of multi-surface teeth of a non-woven flocking needle, which have the characteristic of high processing precision.

In order to achieve the purpose, the invention provides the following technical scheme: the non-woven flocking needle multi-face tooth press forming equipment comprises an installation mechanism, a punching mechanism, a supporting mechanism and a clamping mechanism, wherein the installation mechanism comprises a bottom plate and a top plate positioned above the bottom plate, guide pillars are fixedly connected to four corners of the top surface of the bottom plate, the top plate is fixed to the top surfaces of the guide pillars, a sliding plate is arranged between the bottom plate and the top plate and slides on the guide pillars, two first air cylinders which are symmetrically arranged are fixedly connected to the top surface of the top plate, the telescopic ends of the first air cylinders penetrate through the top plate and are fixedly connected with the sliding plate, the first air cylinders are in transmission connection with an external air source, the punching mechanism comprises an installation top plate, an upper protection block and a punching plate, the installation top plate is fixed to the bottom surface of the sliding plate, the upper protection block is in sliding connection with the bottom surface of the installation top plate through a guide component, and the punching plate is fixed to the bottom surface of the installation top plate, the bottom surface of the punching plate is fixedly connected with a forming cutter, the upper protecting block is provided with an upper clamping groove, the supporting mechanism comprises an installation bottom plate and a lower protecting block fixed on the top surface of the installation bottom plate, the installation bottom plate is fixed on the top surface of the bottom plate, the lower protecting block is provided with a lower clamping groove corresponding to the upper clamping groove, the clamping mechanism comprises a support, a second cylinder and a rotating plate, the second cylinder is fixed on the top surface of the bottom plate, the support is fixed on the telescopic end of the second cylinder, the second cylinder is in transmission connection with an external air source, the rotating plate is rotatably connected at the middle position of the support, one side surface of the rotating plate, which is far away from the support, is fixedly connected with three clamping plates with central symmetry, a cutting notch is arranged between every two adjacent clamping plates, and one side surface of the support, which is far away from the rotating plate, is fixedly connected with a stepping motor, the output end of the stepping motor is coaxially fixed with the rotating plate, the stepping motor is electrically connected with an external power supply, the clamping plate, the upper clamping groove and the lower clamping groove correspond to each other, and four corners of the bottom surface of the bottom plate are fixedly connected with adjusting mechanisms.

Preferably, the adjusting mechanism comprises a threaded pipe and a screw rod screwed at the bottom end of the threaded pipe, the top end of the threaded pipe is fixedly connected with the bottom plate, and the bottom end of the screw rod is coaxially and fixedly connected with the supporting column.

Preferably, the bottom surface of the supporting column is fixedly bonded with a non-slip mat.

Preferably, the thickness of the non-slip mat is 5 millimeters, and the non-slip mat is made of rubber.

Preferably, the anti-skid grains are arranged on the periphery of the outer wall of the supporting column.

Preferably, the guide member includes that guide post and slip cover establish the stand pipe at its outer wall, the coaxial fixedly connected with baffle in bottom of guide post, the diameter of baffle is greater than the internal diameter of stand pipe, the top of guide post with installation roof fixed connection, the stand pipe with on protect piece fixed connection.

Preferably, both sides of the long edge of the top plate are hinged with cover plates, and the cover plates are transparent plastic plates.

Preferably, the bottom ends of the cover plates are fixedly connected with handles.

Preferably, the height of the cover plate is greater than that of the guide pillar.

The processing technology of the non-woven flocking needle multi-face tooth press forming equipment comprises the following steps:

s1: clamping a workpiece, inserting the triangular prism part of the needle body between the three clamping plates, enabling three long edges of the triangular prism part of the needle body to be respectively positioned in the cutting openings formed between the two clamping plates, driving the rotating plate to rotate through the stepping motor, adjusting the angle of the needle body, enabling the three clamping plates to correspond to the upper clamping groove and the lower clamping groove, and enabling one edge of the triangular prism part of the needle body to correspond to the forming cutter to finish clamping;

s2: the second cylinder drives the support to move downwards, so that the clamping plate is clamped in the lower clamping groove of the lower protection block, the clamping plate and the needle body are positioned and supported in an auxiliary mode, and the clamping plate and the needle body are prevented from bending and deforming in the forming process;

s3: the first cylinder at the top end of the top plate pushes the sliding plate to slide downwards along the guide post, the mounting top plate, the upper protection block, the punching plate and the forming cutter synchronously move downwards, the upper protection block is firstly contacted with the clamping plate and clamped and positioned in the moving process, the mounting top plate, the punching plate and the forming cutter continue to move downwards, the upper protection block slides relative to the mounting top plate under the action of the guide member, and the forming cutter moves downwards to be contacted with the long edge of the triangular prism of the needle body and performs pressing and punching on the long edge of the triangular prism of the needle body, so that the hook teeth are finally formed;

s4: the first cylinder drives the sliding plate to move upwards until the upper protection block and the forming cutter are completely separated from contact with the clamping plate, the second cylinder pushes the support, the rotating plate, the clamping plate and the needle body to move upwards and are separated from contact with the lower protection block, the stepping motor drives the rotating plate, the clamping plate and the needle body to rotate, and the other edge of the triangular prism part of the needle body is adjusted to correspond to the forming cutter;

s5: repeating the steps of S2, S3 and S4 until all the long edges of the rhomboid columns of the needle body are cut.

Compared with the prior art, the invention has the beneficial effects that:

when the centre gripping location, it is inboard directly to insert three cardboard with needle body rhombus post position, the location is comparatively quick accurate, when carrying out the compression moulding, the cardboard, needle body rhombus post position all joints in last draw-in groove and lower draw-in groove, and protect the piece to fix a position the support to needle body rhombus post position by protecting the piece down with last, the effectual needle body rhombus post position that prevents takes place bending deformation when receiving the die cutting power, improve processingquality and machining precision, and drive the cardboard rotation on the rotor plate through step motor, the quick accurate corresponding limit of switching needle body rhombus post, production machining efficiency is higher.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2;

fig. 4 is an enlarged schematic view of B in fig. 2.

In the figure: 1. an installation mechanism; 11. a base plate; 12. a top plate; 13. a guide post; 14. a slide plate; 15. a first cylinder; 16. a cover plate; 161. a handle; 2. a stamping mechanism; 201. an upper clamping groove; 21. installing a top plate; 22. an upper protection block; 23. punching and cutting a plate; 24. a forming cutter; 25. a guide member; 251. a guide post; 252. a guide tube; 253. a baffle plate; 3. a support mechanism; 301. a lower clamping groove; 31. mounting a bottom plate; 32. a lower protection block; 4. a clamping mechanism; 41. a support; 42. a second cylinder; 43. a rotating plate; 44. clamping a plate; 45. a stepping motor; 5. an adjustment mechanism; 51. a threaded pipe; 52. a screw; 53. a support pillar; 54. a non-slip mat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a non-woven flocking needle multi-face tooth press forming device comprises an installation mechanism 1, a punching mechanism 2, a supporting mechanism 3 and a clamping mechanism 4, wherein the installation mechanism 1 comprises a bottom plate 11 and a top plate 12 positioned above the bottom plate 11, four corners of the top surface of the bottom plate 11 are fixedly connected with guide posts 13, the top plate 12 is fixed on the top surfaces of the guide posts 13, a sliding plate 14 is arranged between the bottom plate 11 and the top plate 12, the sliding plate 14 slides on the guide posts 13, the top surface of the top plate 12 is fixedly connected with two first air cylinders 15 which are symmetrically arranged, the telescopic ends of the first air cylinders 15 penetrate through the top plate 12 and are fixedly connected with the sliding plate 14, the first air cylinders 15 are in transmission connection with an external air source, the punching mechanism 2 comprises an installation top plate 21, an upper protection block 22 and a punching plate 23, the installation top plate 21 is fixed on the bottom surface of the sliding plate 14, the upper protection block 22 is in sliding connection with the bottom surface of the installation top plate 21 through a guide member 25, the punching plate 23 is fixed on the bottom surface of the installation top plate 21, the bottom surface of the punching plate 23 is fixedly connected with a forming cutter 24, an upper clamping groove 201 is arranged on an upper protection block 22, a supporting mechanism 3 comprises a mounting bottom plate 31 and a lower protection block 32 fixed on the top surface of the mounting bottom plate 31, the mounting bottom plate 31 is fixed on the top surface of a bottom plate 11, a lower clamping groove 301 corresponding to the upper clamping groove 201 is arranged on the lower protection block 32, a clamping mechanism 4 comprises a bracket 41, a second cylinder 42 and a rotating plate 43, the second cylinder 42 is fixed on the top surface of the bottom plate 11, the bracket 41 is fixed on the telescopic end of the second cylinder 42, the second cylinder 42 is in transmission connection with an external air source, the rotating plate 43 is rotatably connected at the middle position of the bracket 41, one side surface of the rotating plate 43 far away from the bracket 41 is fixedly connected with three clamping plates 44 with central symmetry, a cutting notch is arranged between two adjacent clamping plates 44, one side surface of the bracket 41 far away from the rotating plate 43 is fixedly connected with a stepping motor 45, and the output end of the stepping motor 45 is coaxially fixed with the rotating plate 43, the stepping motor 45 is electrically connected with an external power supply, the clamping plate 44, the upper clamping groove 201 and the lower clamping groove 301 correspond to each other, and the four corners of the bottom surface of the bottom plate 11 are fixedly connected with the adjusting mechanisms 5.

In this embodiment: when the centre gripping location, it is inboard directly to insert three cardboard 44 with needle body rhombus post position, the location is comparatively quick accurate, when carrying out compression moulding, cardboard 44, needle body rhombus post position all joints in last draw-in groove 201 and lower draw-in groove 301, and protect piece 32 and last protection piece 22 to carry out the location support to needle body rhombus post position by down, the effectual needle body rhombus post position that prevents takes place bending deformation when receiving the die cutting power, improve processingquality and machining precision, and it rotates to drive cardboard 44 on the rotor plate 43 through step motor 45, the quick accurate corresponding limit of switching needle body rhombus post, production machining efficiency is higher.

Specifically, the adjusting mechanism 5 comprises a threaded pipe 51 and a screw rod 52 screwed at the bottom end of the threaded pipe 51, the top end of the threaded pipe 51 is fixedly connected with the bottom plate 11, and the bottom end of the screw rod 52 is coaxially and fixedly connected with a support column 53; the screw rod 52 is rotated through the supporting column 53, the screw rod 52 is lifted and lowered on the threaded pipe 51, the effective length of the screw rod 52 is adjusted, the height of the bottom plate 11 is adjusted conveniently, and the applicability is high.

Specifically, the bottom surface of the support column 53 is fixedly bonded with a non-slip mat 54; non-slip pads 54 may increase the friction on the bottom surface of support columns 53, making the device more stable in placement.

Specifically, the thickness of the non-slip mat 54 is 5 mm, which can ensure sufficient abrasion loss, and the non-slip mat 54 is made of rubber; the non-slip mat 54 made of rubber has a good non-slip effect.

Specifically, the outer wall of the support column 53 is provided with anti-skid lines around the circumference; the friction between the outer wall of the support column 53 and the hand of a person can be increased, and the slipping phenomenon of the person in use can be prevented.

Specifically, the guide member 25 comprises a guide post 251 and a guide tube 252 slidably sleeved on the outer wall of the guide post 251, the bottom end of the guide post 251 is coaxially and fixedly connected with a baffle 253, the diameter of the baffle 253 is larger than the inner diameter of the guide tube 252, the top end of the guide post 251 is fixedly connected with the mounting top plate 21, and the guide tube 252 is fixedly connected with the upper protection block 22; when the upper protection block 22 and the installation top plate 21 slide relatively, the guide pipe 252 slides along the guide post 251 to guide the relative sliding of the upper protection block 22 and the installation top plate 21, and at the same time, the guide pipe 252 does not disengage from the guide post 251 by the baffle 253, thereby functioning to connect the upper protection block 22 and the installation top plate 21.

Specifically, the cover plates 16 are hinged to two sides of the long edge of the top plate 12, the cover plates 16 are rotated and placed down, personnel can be protected, flying and cutting generated in the stamping process are effectively prevented from causing damage to the personnel, and the cover plates 16 are transparent plastic plates; the personnel of being convenient for observe.

Specifically, the bottom ends of the cover plates 16 are fixedly connected with handles 161; the cover plate 16 is rotated through the handle 161, so that the use is more convenient.

Specifically, the height of the cover plate 16 is greater than that of the guide post 13; the area between the bottom plate 11 and the top plate 12 can be completely covered, and the protection effect is good.

The processing technology of the non-woven flocking needle multi-face tooth press forming equipment comprises the following steps:

s1: clamping a workpiece, inserting the triangular prism part of the needle body between the three clamping plates 44, respectively positioning three long sides of the triangular prism of the needle body in a cutting opening formed between the two clamping plates 44, driving the rotating plate 43 to rotate through the stepping motor 45, adjusting the angle of the needle body, enabling the three clamping plates 44 to correspond to the upper clamping groove 201 and the lower clamping groove 301, and enabling one side of the triangular prism part of the needle body to correspond to the forming cutter 24 to finish clamping;

s2: clamping and positioning, wherein the second air cylinder 42 drives the bracket 41 to move downwards, so that the clamping plate 44 is clamped in the lower clamping groove 301 of the lower protection block 32, and the clamping plate 44 and the needle body are positioned and supported in an auxiliary manner to prevent the needle body from bending and deforming in the forming process;

s3: stamping and forming, wherein a first air cylinder 15 at the top end of a top plate 12 pushes a sliding plate 14 to slide downwards along a guide post 13, a mounting top plate 21, an upper protection block 22, a punching plate 23 and a forming cutter 24 synchronously move downwards, the upper protection block 22 contacts with a clamping plate 44 in the moving process and carries out clamping positioning on the clamping plate, the mounting top plate 21, the punching plate 23 and the forming cutter 24 continuously move downwards, the upper protection block 22 slides relative to the mounting top plate 21 under the action of a guide member 25, and the forming cutter 24 moves downwards to contact with the long edge of a triangular prism of a needle body and carries out pressing punching on the long edge of the triangular prism of the needle body, so that hook teeth are formed finally;

s4: resetting and adjusting, wherein a first air cylinder 15 (model SC100 x 75) drives a sliding plate 14 to move upwards until an upper protection block 22 and a forming cutter 24 are completely separated from contact with a clamping plate 44, a second air cylinder 42 (model MA 16) pushes a support 41, a rotating plate 43, the clamping plate 44 and a needle body to move upwards and separate from contact with a lower protection block 32, a stepping motor 45 (model 42CM 02) drives the rotating plate 43, the clamping plate 44 and the needle body to rotate, and the other edge of the three diamond column part of the adjusting needle body corresponds to the forming cutter 24;

s5: and repeating the steps S2, S3 and S4 until all the long edges of the rhomboid columns of the needle body are cut.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. Non-woven flocking needle multiple teeth press forming equipment which characterized in that: the punching mechanism comprises an installation mechanism (1), a punching mechanism (2), a supporting mechanism (3) and a clamping mechanism (4), wherein the installation mechanism (1) comprises a bottom plate (11) and a top plate (12) positioned above the bottom plate, guide pillars (13) are fixedly connected to four corners of the top surface of the bottom plate (11), the top plate (12) is fixed to the top surface of each guide pillar (13), a sliding plate (14) is arranged between the bottom plate (11) and the top plate (12), the sliding plate (14) slides on the guide pillars (13), two first air cylinders (15) which are symmetrically arranged are fixedly connected to the top surface of the top plate (12), the telescopic ends of the first air cylinders (15) penetrate through the top plate (12) and are fixedly connected with the sliding plate (14), the first air cylinders (15) are in transmission connection with an external air source, and the punching mechanism (2) comprises an installation top plate (21), The cutting device comprises an upper protection block (22) and a cutting plate (23), a mounting top plate (21) is fixed on the bottom surface of a sliding plate (14), the upper protection block (22) is connected to the bottom surface of the mounting top plate (21) in a sliding mode through a guide member (25), the cutting plate (23) is fixed on the bottom surface of the mounting top plate (21), a forming cutter (24) is fixedly connected to the bottom surface of the cutting plate (23), an upper clamping groove (201) is formed in the upper protection block (22), a supporting mechanism (3) comprises a mounting bottom plate (31) and a lower protection block (32) fixed on the top surface of the mounting bottom plate (31), the mounting bottom plate (31) is fixed on the top surface of a bottom plate (11), a lower clamping groove (301) corresponding to the upper clamping groove (201) is formed in the lower protection block (32), and a clamping mechanism (4) comprises a support (41), a second air cylinder (42) and a rotating plate (43), the second air cylinder (42) is fixed on the top surface of the bottom plate (11), the support (41) is fixed at the telescopic end of the second air cylinder (42), the second air cylinder (42) is in transmission connection with an external air source, the rotating plate (43) is rotatably connected to the middle position of the support (41), one side surface, away from the support (41), of the rotating plate (43) is fixedly connected with three clamping plates (44) with central symmetry, a cutting notch is formed between every two adjacent clamping plates (44), one side surface, away from the rotating plate (43), of the support (41) is fixedly connected with a stepping motor (45), the output end of the stepping motor (45) is coaxially fixed with the rotating plate (43), the stepping motor (45) is electrically connected with an external power source, and the clamping plates (44), the upper clamping groove (201) and the lower clamping groove (301) correspond to each other, and four corners of the bottom surface of the bottom plate (11) are fixedly connected with adjusting mechanisms (5).

2. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 1, wherein: the adjusting mechanism (5) comprises a threaded pipe (51) and a screw rod (52) screwed at the bottom end of the threaded pipe, the top end of the threaded pipe (51) is fixedly connected with the bottom plate (11), and the bottom end of the screw rod (52) is coaxially and fixedly connected with a supporting column (53).

3. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 2, wherein: and the bottom surface of the supporting column (53) is fixedly bonded with a non-slip mat (54).

4. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 3, wherein: the thickness of the non-slip mat (54) is 5 mm, and the non-slip mat (54) is made of rubber.

5. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 4, wherein: anti-skidding lines are arranged on the periphery of the outer wall of the supporting column (53).

6. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 5, wherein: the guide member (25) comprises a guide column (251) and a guide pipe (252) which is slidably sleeved on the outer wall of the guide column, a baffle plate (253) is coaxially and fixedly connected to the bottom end of the guide column (251), the diameter of the baffle plate (253) is larger than the inner diameter of the guide pipe (252), the top end of the guide column (251) is fixedly connected with the mounting top plate (21), and the guide pipe (252) is fixedly connected with the upper protection block (22).

7. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 6, wherein: the long edge of the top plate (12) is hinged to cover plates (16), and the cover plates (16) are transparent plastic plates.

8. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 7, wherein: the bottom end of the cover plate (16) is fixedly connected with a handle (161).

9. The nonwoven pile-coated needle multi-faceted compression molding apparatus according to claim 8, wherein: the cover plate (16) is higher than the guide post (13).

10. The process of manufacturing a nonwoven flocked needle multi-faceted tooth press forming apparatus as claimed in claim 9, wherein: the method comprises the following steps:

s1: clamping a workpiece, inserting the triangular prism part of the needle body between the three clamping plates (44), enabling three long sides of the triangular prism of the needle body to be respectively positioned in the cutting opening formed between the two clamping plates (44), driving the rotating plate (43) to rotate through the stepping motor (45), adjusting the angle of the needle body, enabling the three clamping plates (44) to correspond to the upper clamping groove (201) and the lower clamping groove (301), and enabling one of the long sides of the triangular prism part of the needle body to correspond to the forming cutter (24) to finish clamping;

s2: clamping and positioning, wherein the second air cylinder (42) drives the support (41) to move downwards, so that the clamping plate (44) is clamped in the lower clamping groove (301) of the lower protection block (32), and the clamping plate (44) and the needle body are positioned and supported in an auxiliary manner to prevent the clamping plate (44) and the needle body from bending and deforming in the forming process;

s3: stamping and forming, wherein the first air cylinder (15) at the top end of the top plate (12) pushes the sliding plate (14) to slide downwards along the guide post (13), the mounting top plate (21), the upper protection block (22), the stamping plate (23) and the forming cutter (24) synchronously move downwards, in the moving process, the upper protection block (22) is firstly contacted with the clamping plate (44) and carries out clamping and positioning on the clamping plate, the mounting top plate (21), the stamping plate (23) and the forming cutter (24) continuously move downwards, the upper protection block (22) slides relative to the mounting top plate (21) under the action of the guide member (25), and the forming cutter (24) moves downwards to be contacted with the long edge of the triangular prism and carries out stamping and cutting on the triangular prism, so that hook teeth are finally formed;

s4: resetting and adjusting, wherein the first air cylinder (15) drives the sliding plate (14) to move upwards until the upper protection block (22) and the forming cutter (24) are completely separated from the contact with the clamping plate (44), the second air cylinder (42) pushes the bracket (41), the rotating plate (43), the clamping plate (44) and the needle body to move upwards and separate from the contact with the lower protection block (32), the stepping motor (45) drives the rotating plate (43), the clamping plate (44) and the needle body to rotate, and the other edge of the triangular prism part of the needle body is adjusted to correspond to the forming cutter (24);

s5: repeating the steps of S2, S3 and S4 until all the long edges of the rhomboid columns of the needle body are cut.

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