A guide wire and waste avoiding mechanism with upper closing and lower opening
By designing a wire guide that closes at the top and opens at the bottom, as well as a waste material avoidance mechanism, the problem of waste material accumulation and blockage of the wire inlet in the wire EDM machine is solved, achieving smooth wire feeding and waste material avoidance, thus improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ZHICHUAN TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-07
AI Technical Summary
When cutting metal wire, existing wire EDM machines tend to accumulate waste material at the wire feed inlet, causing blockages and affecting the smooth progress of subsequent processes, resulting in low work efficiency.
Design a wire guide and waste avoidance mechanism that closes at the top and opens at the bottom, including components such as a mounting base plate, a mounting back plate, a fixed sliding sleeve, upper and lower moving blocks, a rotating shaft, a limiting clamp, and a wire threading clamp. Through the coordinated movement of the rotating shaft and the limiting clamp, the smooth introduction of the metal wire and the avoidance of waste are achieved.
This effectively prevents waste from accumulating at the wire inlet, ensuring that the metal wire passes smoothly through the wire guide, improving work efficiency, reducing waste cleaning time, and ensuring smooth process operation.
Smart Images
Figure CN224463857U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal wire cutting equipment. Background Technology
[0002] like Figure 1 As shown, in existing wire EDM machines, the waste generated when the metal wire 200 cuts the workpiece 300 easily falls off and accumulates next to the wire inlet 102 of the wire feeder 100, which can easily clog the wire inlet 102, affecting the smooth progress of subsequent processes. It takes time to clean up the waste, resulting in low work efficiency. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the defects of the existing technology and propose a wire guide and waste avoidance mechanism that closes at the top and opens at the bottom. This not only makes wire guiding convenient and easy, but also prevents cutting waste from falling and accumulating and clogging the wire inlet of the wire guide, resulting in smooth operation and improved work efficiency.
[0004] In order to solve the above-mentioned technical problems, the present invention proposes the following technical solution: a guide wire and waste material avoidance mechanism that closes at the top and opens at the bottom, including a mounting base plate, a mounting back plate, a fixed sliding sleeve, upper and lower moving blocks, two rotating shafts, a lower guide post, a left limiting clamp, a right limiting clamp, a left wire threading clamp, a right wire threading clamp and an upper guide post.
[0005] The mounting backplate is installed vertically on the rear of the top surface of the mounting base;
[0006] The fixed sliding sleeve is fixed to the upper part of the front wall of the mounting back plate, and the mounting back plate and the fixed sliding sleeve form a vertical movement space. The fixed sliding sleeve includes a front side plate.
[0007] The left and right sides of the front panel are respectively provided with a left inclined edge and a right inclined edge, or the upper closing and lower opening guide wire and waste material avoidance mechanism also includes a limiting clamping plate installed and fixed on the front panel, with a left inclined edge and a right inclined edge on the left and right sides of the limiting clamping plate respectively.
[0008] The vertical moving block is installed in the above-mentioned vertical moving space and can move up and down. There are two vertically penetrating rotating shaft mounting holes in the vertical moving block.
[0009] Two rotating shafts are rotatably mounted in the rotating shaft mounting holes, with the top and bottom ends of the two rotating shafts extending above and below the upper and lower moving blocks, respectively.
[0010] The lower guide post is fixed to the front position on the top surface of the mounting base, and its top end includes a cone-shaped guide part;
[0011] The left limit clamp is installed and fixed at the bottom end of the rotating shaft on the left side, and the left limit clamp is provided with a left inclined surface;
[0012] The right limit clamp is installed and fixed at the bottom end of the rotating shaft on the right side, and the right limit clamp is provided with a right inclined surface;
[0013] The left threading clamp includes a left clamping rod that is indirectly connected to the top of the rotating shaft on the left side;
[0014] The right-hand thread clamp includes a right clamping rod that is indirectly connected to the top of the rotating shaft on the right side;
[0015] The upper guide post is located on the front side of the fixed sliding sleeve;
[0016] The left and right limit clamps move upwards, and the left and right inclined edges of the front side plate or limit clamp pressure plate press on the left and right inclined surfaces respectively. The left and right limit clamps close under pressure, the two rotating shafts rotate, and the left and right wire threading clamps close after rotating with the two rotating shafts. The left and right clamping rods close to form a wire guide surface and a wire guide groove that communicates with the wire guide surface.
[0017] The left and right limit clamps move downwards and are squeezed by the guide part, opening and clamping outside the lower guide post. The left and right wire threading clamps rotate with the two rotating shafts, opening and clamping outside the upper guide post.
[0018] A further limitation of the above technical solution is that the fixed sliding sleeve also includes a left side plate and a right side plate that are fixed to the front wall of the mounting back plate, with the front side plate located between the left side plate and the right side plate.
[0019] A further limitation of the above technical solution is that the left inclined edge is along the direction from the lower left to the upper right, the right inclined edge is along the direction from the upper left to the lower right, the left inclined surface is along the direction from the lower left to the upper right, and the right inclined surface is along the direction from the upper left to the lower right.
[0020] A further limitation of the above technical solution is that a semi-conical left guide wire surface is provided on the top surface of the left clamping rod, and a semi-cylindrical left guide wire groove is provided on the right wall of the left clamping rod along the vertical direction, and the left guide wire surface and the left guide wire groove are connected.
[0021] The top surface of the right clamp rod has a half-conical right guide wire surface facing downwards, and the left wall of the right clamp rod has a half-cylindrical right guide wire groove opening along the vertical direction. The right guide wire surface and the right guide wire groove are connected.
[0022] When the left clamp and the right clamp are closed, the left guide wire surface and the right guide wire surface merge to form the aforementioned guide wire surface, which is conical in shape. The left guide wire groove and the right guide wire groove merge to form the aforementioned guide wire groove, which is cylindrical in shape.
[0023] A further limitation of the above technical solution is that the left wire clamp also includes a left connecting rod, the rear end of which is fixed to the top of the rotating shaft on the left side, and the left clamping rod is formed by a vertical bend from the front end of the left connecting rod.
[0024] The right thread clamp also includes a right connecting rod. The rear end of the right connecting rod is fixed to the top of the rotating shaft on the right side. The right clamping rod is formed by bending vertically from the front end of the right connecting rod.
[0025] A further limitation of the above technical solution is that it also includes an upper guide post mounting block, which is installed and fixed on the front side of the fixed sliding sleeve, and the upper guide post is installed and fixed on the upper guide post mounting block.
[0026] A further limitation of the above technical solution is that it also includes a guide wire tube, which is installed and fixed inside the upper guide post.
[0027] A further limitation of the above technical solution is that it also includes an up-and-down pushing and pulling device, which is installed and fixed on the bottom surface of the mounting base plate and connected to the bottom end of the up-and-down moving blocks.
[0028] A further limitation of the above technical solution is that the up-and-down pushing and pulling device is a cylinder, which is installed and fixed on the bottom surface of the mounting base plate, and its piston rod is connected to the bottom end of the up-and-down moving block.
[0029] A further limitation of the above technical solution is that it also includes a protective cover, which is installed and fixed on the top surface of the upper and lower moving blocks. The protective cover covers the mounting base plate, mounting back plate, fixed sliding sleeve, upper and lower moving blocks, two rotating shafts, lower guide post, left limit clamp and right limit clamp. The top ends of the two rotating shafts extend above the protective cover.
[0030] Compared with the prior art, this utility model has the following advantages: the conical wire guide surface and guide groove formed when the left and right wire clamps are closed facilitate the smooth introduction of the metal wire through the wire guide tube and the wire inlet of the wire guide into the wire guide. Because the upper guide post protects the wire inlet, waste generated from wire cutting will not fall and accumulate at the wire inlet of the wire guide, ensuring smooth subsequent processes, eliminating the need for waste cleaning, and improving work efficiency. Attached Figure Description
[0031] Figure 1 It is a three-dimensional image of a workpiece being cut by a metal wire in the existing technology.
[0032] Figure 2 This is a perspective view of the wire guide and waste avoidance mechanism of this utility model, which is installed on the wire guide (with the protective cover removed).
[0033] Figure 3 This is another perspective view of the wire guide and waste avoidance mechanism of this utility model, which is installed on the wire guide.
[0034] Figure 4 This is a perspective view of the guide wire and waste material avoidance mechanism that closes at the top and opens at the bottom of this utility model (with the protective cover removed).
[0035] Figure 5 This is an exploded view of the installation of the guide wire that closes at the top and opens at the bottom, as well as the waste material avoidance mechanism of this utility model.
[0036] Figure 6 This is a perspective view of the fixed sliding sleeve, limiting clamp, left limiting clamp, right limiting clamp, left threading clamp, and right threading clamp of this utility model. Detailed Implementation
[0037] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation details without creative effort are all within the protection scope of this invention.
[0038] Please see Figures 1 to 6 A wire guide and waste avoidance mechanism that closes at the top and opens at the bottom includes a mounting base plate 1, a mounting back plate 2, a fixed sliding sleeve 3, a limiting clamping plate 4, an upper and lower moving block 5, two rotating shafts 6, a lower guide post 7, a left limiting clamp 8, a right limiting clamp 9, a left wire threading clamp 10, a right wire threading clamp 11, a protective cover 12, an upper guide post mounting block 13, an upper guide post 14, a wire guide tube 15, and an upper and lower pushing and pulling device 16.
[0039] The mounting base 1 is horizontal, and the mounting back plate 2 is vertically mounted on the top surface of the mounting base 1 at the rear position. The mounting back plate 2 is vertical.
[0040] The fixed sliding sleeve 3 is installed and fixed on the upper part of the front wall of the mounting back plate 2.
[0041] The fixed sliding sleeve 3 includes a left side plate 31 and a right side plate 32 that are fixedly mounted on the front wall of the mounting back plate 2, and a front side plate 33 located between the left side plate 31 and the right side plate 32. Therefore, a space is formed between the mounting back plate 2 and the fixed sliding sleeve 3 for the vertical movement of the vertical moving block 5.
[0042] The limiting clamping plate 4 is installed and fixed on the front side plate 33 of the fixed sliding sleeve 3.
[0043] The bottom left and right sides of the limiting clamping plate 4 are respectively provided with a left inclined edge 41 along the direction from the lower left to the upper right and a right inclined edge 43 along the direction from the upper left to the lower right.
[0044] The vertical moving block 5 is installed in the space enclosed by the mounting back plate 2 and the fixed sliding sleeve 3 and can move up and down.
[0045] Two through-holes 51 for mounting rotating shafts are provided inside the upper and lower moving block 5.
[0046] Two rotating shafts 6 are rotatably installed in the rotating shaft mounting holes 51, with the top and bottom ends of the two rotating shafts 6 extending above and below the upper and lower moving blocks 5, respectively.
[0047] The lower guide post 7 is vertically mounted and fixed on the top surface of the mounting base 1 at a forward position, located in front of the upper and lower moving blocks 5. The top of the lower guide post 7 includes a conical inlet 72.
[0048] The rear end of the left limit clamp 8 is fixed to the bottom end of the rotating shaft 6 on the left side.
[0049] The left limit clamp 8 has a left inclined surface 82 that runs from the lower left to the upper right in the direction corresponding to the left inclined edge 41.
[0050] The rear end of the right limit clamp 9 is fixed to the bottom end of the rotating shaft 6 on the right side.
[0051] The right limit clamp 9 has a right inclined surface 92 that runs from the upper left to the lower right in the direction of the right inclined edge 43.
[0052] The left threading clamp 10 includes a left connecting rod 101 and a left clamping rod 103.
[0053] The rear end of the left connecting rod 101 is mounted and fixed to the top of the rotating shaft 6 on the left side.
[0054] The left clamping rod 103 extends vertically from the front end of the left connecting rod 101, and the left clamping rod 103 is vertical.
[0055] The top surface of the left clamp rod 103 has a semi-conical left guide wire surface 1032 facing downwards, and the right wall of the left clamp rod 103 has a semi-cylindrical left guide wire groove 1034 opening in the vertical direction. The left guide wire surface 1032 and the left guide wire groove 1034 are connected.
[0056] The left connecting rod 101 and the left clamping rod 103 of the left thread clamp 10 can both rotate with the left-side rotating shaft 6.
[0057] The right thread clamp 11 includes a right connecting rod 111 and a right clamping rod 113.
[0058] The rear end of the right connecting rod 111 is mounted and fixed to the top of the rotating shaft 6 on the right side.
[0059] The right clamping rod 113 is formed by a vertical bend extending from the front end of the right connecting rod 111, and the right clamping rod 113 is vertical.
[0060] The top surface of the right clamp rod 113 has a right guide wire surface 1132 in the shape of a semi-conical shape, and the left wall surface of the right clamp rod 113 has a right guide wire groove (unlabeled) in the shape of a semi-cylindrical shape, which is opened along the vertical direction. The right guide wire surface 1132 and the right guide wire groove (unlabeled) are connected.
[0061] The right connecting rod 111 and the right clamping rod 113 of the right thread clamp 11 can both rotate with the rotating shaft 6 on the right side.
[0062] When the left wire clamp 10 and the right wire clamp 11 are closed, the left clamp rod 103 and the right clamp rod 113 are closed and attached together, the left guide wire surface 1032 and the right guide wire surface 1132 are combined to form a conical guide wire surface (not shown in the figure), and the left guide wire groove 1034 and the right guide wire groove (not labeled) are combined to form a cylindrical guide wire groove (not shown in the figure).
[0063] The protective cover 12 is installed and fixed on the top surface of the upper and lower moving blocks 5. The protective cover 12 covers the mounting base plate 1, mounting back plate 2, fixed sliding sleeve 3, limit clamping plate 4, upper and lower moving blocks 5, two rotating shafts 6, lower guide post 7, left limit clamp 8 and right limit clamp 9. The top ends of the two rotating shafts 6 extend above the protective cover 12.
[0064] The upper guide post mounting block 13 is installed and fixed on the top of the wire guide 100 and is located in front of the fixed sliding sleeve 3 and the protective cover 12.
[0065] The upper guide post 14 is vertically installed and fixed on the top surface of the upper guide post mounting block 13.
[0066] The wire guide tube 15 is installed and fixed inside the upper guide post 14. The wire guide tube 15 allows the metal wire 200 to pass through and enter the wire inlet 102 of the wire guide 100.
[0067] The push-pull device 16 is a cylinder, which is fixed on the bottom surface of the mounting base plate 1, and its piston rod 162 is connected to the bottom end of the upper and lower moving blocks 5.
[0068] The guide wire and waste material avoidance mechanism of this utility model, which closes at the top and opens at the bottom, are installed and fixed at the rear end of the guide wire device 100.
[0069] When the upper and lower moving block 5 is at its lowest point, the left limit clamp 8 and the right limit clamp 9 are clamped at the bottom of the lower guide post 7, and the left threading clamp 10 and the right threading clamp 11 are clamped at the bottom of the upper guide post 14.
[0070] When it is necessary to thread the metal wire 200 into the wire guide 100, the up-and-down push-pull device 13 is activated, the piston rod 162 moves upward, pushing the up-and-down moving block 5 upward. The two rotating shafts 6, the left limit clamp 8, the right limit clamp 9, the left wire threading clamp 10, and the right wire threading clamp 11 all move upward. Then, the left inclined edge 41 and the right inclined edge 43 of the limit clamp pressure plate 4 press on the left inclined surface 82 of the left limit clamp 8 and the right inclined surface 92 of the right limit clamp 9, respectively. Under the pressure, the left limit clamp 8 and the right limit clamp 9 rotate and then clamp together. The rotation of the left limit clamp 8 and the right limit clamp 9 drives the two rotating shafts 6 to rotate, which in turn drives the left wire threading clamp 10 and the right wire threading clamp 11 to rotate and clamp together, located above the upper guide post 14 and the wire guide tube 15.
[0071] When the left wire clamp 10 and the right wire clamp 11 are closed together, they form the wire guide surface and the wire guide groove. After the metal wire 200 passes through the wire guide surface and the wire guide groove, it continues to pass through the wire guide tube 15 below and the wire inlet 102 of the wire guide 100 and enters the interior of the wire guide 100.
[0072] When the workpiece 300 is cut with the metal wire 200, the push-pull device 13 reverses, the piston rod 162 moves downward, pulling the upper and lower moving block 5, the two rotating shafts 6, the left limit clamp 8, the right limit clamp 9, the left wire threading clamp 10, and the right wire threading clamp 11 downward. The left limit clamp 8 and the right limit clamp 9 are squeezed by the conical guide part 72 of the lower guide post 7, and the left inclined side 41 and the right inclined side 43 no longer press the left inclined surface 82 and the right inclined surface 92. Therefore, the left limit clamp 8 and the right limit clamp 9 separate after rotating, and are clamped outside the lower guide post 7. The left wire threading clamp 10 and the right wire threading clamp 11 rotate together with the two rotating shafts 6 and then separate and are clamped outside the upper guide post 14. The waste generated when the metal wire 200 cuts the workpiece 300 is knocked away by the upper guide post 14. The wire inlet 102 is protected by the upper guide post 14, so the cutting waste will not fall and accumulate in the wire inlet 102, and the subsequent processes are smooth and the work efficiency is high.
[0073] This invention has the following advantages: the conical wire guide surface and guide groove formed when the left wire clamp 10 and the right wire clamp 11 are closed facilitate the smooth passage of the metal wire 200 through the wire guide tube 15 and the wire inlet 102 of the wire guide 100 into the wire guide 100. Because the upper guide post 14 protects the wire inlet 102, the waste generated by the metal wire 200 cutting the workpiece 300 will not fall and accumulate in the wire inlet 102 of the wire guide 100, ensuring smooth subsequent processes, eliminating the need for waste removal, and improving work efficiency.
[0074] As a variation of the first embodiment, the limiting clamping plate 4 is not required. A left inclined edge (not shown) along the direction from the lower left to the upper right and a right inclined edge (not shown) along the direction from the upper left to the lower right are respectively opened on the left and right sides of the front side plate 33 of the fixed sliding sleeve 3. The left inclined surface 82 and the right inclined surface 92 can be pressed down in the same way, and the effect is the same as the left inclined edge 41 and the right inclined edge 43 of the limiting clamping plate 4.
[0075] As a variation of the first embodiment, the up-and-down push-pull device 16 is not limited to a cylinder, but can also be a motor, etc. It is installed and fixed on the bottom surface of the mounting base plate 1 and connected to the bottom end of the up-and-down moving block 5, pushing the up-and-down moving block 5 to move in the up-and-down direction.
[0076] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A guide wire and waste material avoidance mechanism that closes at the top and opens at the bottom, characterized in that, It includes a mounting base plate (1), a mounting back plate (2), a fixed sliding sleeve (3), upper and lower moving blocks (5), two rotating shafts (6), a lower guide post (7), a left limiting clamp (8), a right limiting clamp (9), a left threading clamp (10), a right threading clamp (11), and an upper guide post (14). The mounting backplate (2) is vertically mounted on the rear part of the top surface of the mounting base (1); The fixed sliding sleeve (3) is installed and fixed on the upper part of the front wall of the mounting back plate (2). The mounting back plate (2) and the fixed sliding sleeve (3) form a vertical movement space. The fixed sliding sleeve (3) includes a front side plate (33). The left and right sides of the front side plate (33) are respectively provided with a left inclined edge and a right inclined edge, or the upper closing and lower opening guide wire and waste material avoidance mechanism also includes a limiting clamping plate (4) installed and fixed on the front side plate (33), and the left and right sides of the limiting clamping plate (4) are respectively provided with a left inclined edge (41) and a right inclined edge (43). The vertical moving block (5) is installed in the above-mentioned vertical moving space and can move up and down. Two vertically penetrating rotating shaft mounting holes (51) are opened in the vertical moving block (5). Two rotating shafts (6) are rotatably installed in the rotating shaft mounting hole (51), with the top and bottom ends of the two rotating shafts (6) extending above and below the upper and lower moving blocks (5), respectively. The lower guide post (7) is installed and fixed on the front position of the top surface of the mounting base (1), and its top end includes a cone-shaped guide part (72). The left limiting clamp (8) is installed and fixed at the bottom end of the rotating shaft (6) on the left side, and the left limiting clamp (8) is provided with a left inclined surface (82). The right limit clamp (9) is installed and fixed at the bottom of the rotating shaft (6) on the right side, and the right limit clamp (9) has a right inclined surface (92). The left thread clamp (10) includes a left clamping rod (103) that is indirectly connected to the top of the rotating shaft (6) on the left side. The right thread clamp (11) includes a right clamping rod (113) that is indirectly connected to the top of the rotating shaft (6) on the right side. The upper guide post (14) is located on the front side of the fixed sliding sleeve (3); The left limiting clamp (8) and the right limiting clamp (9) move upward, and the left inclined edge (41) and the right inclined edge (43) of the front side plate (33) or the limiting clamp pressure plate (4) press on the left inclined surface (82) and the right inclined surface (92) respectively. The left limiting clamp (8) and the right limiting clamp (9) close under pressure, and the two rotating shafts (6) rotate. The left wire threading clamp (10) and the right wire threading clamp (11) close after rotating with the two rotating shafts (6). The left clamp rod (103) and the right clamp rod (113) close to form the wire guide surface and the wire guide groove communicating with the wire guide surface. The left limiting clamp (8) and the right limiting clamp (9) move downward and are squeezed by the guide part (72) and open and clamp outside the lower guide post (7). The left threading clamp (10) and the right threading clamp (11) open and clamp outside the upper guide post (14) after rotating with the two rotating shafts (6).
2. The guide wire and waste material avoidance mechanism with upper closing and lower opening as described in claim 1, characterized in that, The fixed sliding sleeve (3) also includes a left side plate (31) and a right side plate (32) that are fixed on the front wall of the mounting back plate (2), with the front side plate (33) located between the left side plate (31) and the right side plate (32).
3. The guide wire and waste material avoidance mechanism with upper closing and lower opening as described in claim 1, characterized in that, The left inclined side (41) is along the direction from the lower left to the upper right, the right inclined side (43) is along the direction from the upper left to the lower right, the left inclined surface (82) is along the direction from the lower left to the upper right, and the right inclined surface (92) is along the direction from the upper left to the lower right.
4. The guide wire and waste material avoidance mechanism with upper closing and lower opening as described in claim 1, characterized in that, The top surface of the left clamp (103) is provided with a semi-conical left guide wire surface (1032) facing downwards, and the right wall of the left clamp (103) is provided with a semi-cylindrical left guide wire groove (1034) opening along the vertical direction. The left guide wire surface (1032) and the left guide wire groove (1034) are connected. The top surface of the right clamp (113) is provided with a half-conical right guide wire surface (1132) facing downwards, and the left wall of the right clamp (113) is provided with a half-cylindrical right guide wire groove along the vertical direction. The right guide wire surface (1132) and the right guide wire groove are connected. When the left clamp (103) and the right clamp (113) are closed, the left guide wire surface (1032) and the right guide wire surface (1132) are combined to form the aforementioned guide wire surface, which is conical in shape. The left guide wire groove (1034) and the right guide wire groove are combined to form the aforementioned guide wire groove, which is cylindrical in shape.
5. The guide wire and waste material avoidance mechanism with upper closing and lower opening according to claim 1 or 4, characterized in that, The left wire clamp (10) also includes a left connecting rod (101), the rear end of which is fixed to the top of the rotating shaft (6) on the left side, and the left clamp rod (103) extends vertically from the front end of the left connecting rod (101). The right thread clamp (11) also includes a right connecting rod (111), the rear end of which is fixed to the top of the rotating shaft (6) on the right side, and the right clamp rod (113) is formed by bending vertically from the front end of the right connecting rod (111).
6. The guide wire and waste material avoidance mechanism with upper closing and lower opening according to claim 1, characterized in that, It also includes an upper guide post mounting block (13), which is installed and fixed on the front side of the fixed sliding sleeve (3), and the upper guide post (14) is installed and fixed on the upper guide post mounting block (13).
7. The guide wire and waste material avoidance mechanism with upper closing and lower opening according to claim 1 or 6, characterized in that, It also includes a guide wire tube (15), which is installed and fixed inside the upper guide post (14).
8. The guide wire and waste material avoidance mechanism with upper closing and lower opening according to claim 1, characterized in that, It also includes an up-and-down push-pull device (16), which is installed and fixed on the bottom surface of the mounting base plate (1) and connected to the bottom end of the up-and-down moving block (5).
9. The guide wire and waste material avoidance mechanism with upper closing and lower opening as described in claim 8, characterized in that, The push-pull device (16) is a cylinder, which is fixed on the bottom surface of the mounting base plate (1), and its piston rod (162) is connected to the bottom end of the upper and lower moving blocks (5).
10. The guide wire and waste material avoidance mechanism with upper closing and lower opening according to claim 1, characterized in that, It also includes a protective cover (12), which is installed and fixed on the top surface of the upper and lower moving blocks (5). The protective cover (12) covers the mounting base plate (1), mounting back plate (2), fixed sliding sleeve (3), upper and lower moving blocks (5), two rotating shafts (6), lower guide post (7), left limit clamp (8) and right limit clamp (9). The top ends of the two rotating shafts (6) extend above the protective cover (12).