Wire drawing processing equipment for plastic woven bag production

Abstract

The invention relates to the field of plastic bag production weaving equipment, in particular to wire drawing processing equipment for plastic woven bag production, the wire drawing processing equipment comprises an extruder, a guide roller set, a cutting assembly and a take-up stand which are arranged in sequence, the cutting assembly comprises a rack, a knife rest and a plurality of blades, the knife rest and the blades are installed on the rack, and the blades are arranged on the knife rest. The multiple blades are arranged at intervals in the direction parallel to the width of a to-be-cut membrane, the cutting assembly further comprises two mounting rods, the two mounting rods are arranged on the tool rest in parallel at intervals, the blades are located between the two mounting rods and rotationally connected with the two blades, and the mounting rods are rotated, so that the to-be-cut membrane is cut. And the blade can generate displacement in the direction parallel to the width of the diaphragm. The device has the effect of conveniently producing and processing various flat filaments with different widths.

Description

Technical Field

[0001] The present application relates to the technical field of plastic bag production and weaving equipment, and in particular to a wire drawing processing equipment for plastic woven bag production. Background Art

[0002] Woven bags, also known as snakeskin bags, are mainly used in the packaging industry. Their raw materials are generally chemical plastics such as polyethylene and polypropylene. They are woven from multiple flat wires. The production of flat wires, also known as the wire drawing process of flat wires, mainly includes the following steps: 1. Mixing: Mixing resins, fillers, recycled materials, masterbatches and other auxiliary materials. 2. Loading the mixed materials to the extruder, which is extruded through the extruder to form a sheet structure (also called embryonic membrane). 3. Cutting: After cooling, the embryonic membrane is cut into strip embryonic wires. 4. Hot stretching: The embryonic wire is stretched after being heated again to induce the formation of an oriented microstructure, thereby obtaining excellent mechanical properties. Finally, the embryonic wire is rolled up to complete the production of the flat wire.

[0003] The flat wire drawing equipment corresponds to the above process and is composed of multiple modules, which are, respectively, an extruder for extruding materials, a cooling water tank for cooling the embryo membrane, a cutting assembly for slitting the embryo membrane, a heating assembly for heating and stretching the embryo wire, and a winding assembly for winding the embryo wire. For example, a modified polypropylene plastic flat wire drawing machine disclosed in the utility model patent with publication number CN209365311U. It mainly includes a feeding hopper, a screw feeder, a screw extruder, a die head, a cooling assembly, a tool holder, an arch plate and a winding roller arranged in sequence. The tool holder mainly includes a tool shaft and a blade, and multiple blades are evenly spaced on the tool shaft to achieve the cutting of the embryo membrane.

[0004] In the actual production process, the sizes of the woven belts are different, and the widths of the flat wires required are also different. Therefore, when the width of the flat wire to be produced changes, it is often necessary to replace the knife holder. In the related technology, the width of the cut flat wire can be adjusted to a certain extent by rotating the knife shaft, but the width of the flat wire that it can cope with is relatively limited, which is not conducive to the current production of various non-standard woven bags. Summary of the invention

[0005] In order to facilitate the production of flat wires of various widths, the present application provides a wire drawing processing equipment for the production of plastic woven bags.

[0006] The present application provides a wire drawing processing equipment for the production of plastic woven bags, which adopts the following technical solutions: A wire drawing processing equipment for producing plastic woven bags, comprising an extruder, a guide roller group, a cutting assembly and a wire take-up frame arranged in sequence, the cutting assembly comprising a frame and a tool holder and a blade mounted on the frame, the blade being arranged in plurality on the tool holder, and the plurality of blades being arranged at intervals in a direction parallel to the width of a diaphragm to be cut, the cutting assembly further comprising two mounting rods, the two mounting rods being arranged in parallel and at intervals on the tool holder, the blade being located between the two mounting rods and being rotatably connected to the two blades, and the blade being displaced in a direction parallel to the width of the diaphragm by rotating the mounting rod.

[0007] By adopting the above technical solution, the blade is connected to the two mounting rods to form a parallelogram connecting rod structure. On the one hand, when the mounting rod rotates, the direction of the blade edge does not change, thereby improving the cutting stability. On the other hand, when the mounting rod rotates, the distance between adjacent blades on the width of the diaphragm increases or decreases, thereby realizing stepless control of the width between the two blades, which is convenient for producing flat wires of different widths.

[0008] Optionally, the rotation axis of the mounting rod is located near the middle of the width of the diaphragm, and the plurality of blades are divided into two groups and are respectively arranged on both sides of the rotation axis of the mounting rod.

[0009] By adopting the above technical solution, when the mounting rod rotates, the multiple blades are displaced in the direction close to the rotation axis of the mounting rod, which can also be understood as the blades at both ends converging towards the blade in the middle. The rotation axis of the mounting rod corresponds to the middle position of the diaphragm width, so it is easy to cut the diaphragm and reduce the situation where the diaphragm cannot be cut normally due to the change of the blade position.

[0010] Optionally, a driving assembly for driving the mounting rod to rotate is provided on the tool holder, and the driving assembly includes a driving plate and a driving rod. The driving plate is slidably connected to the tool holder along the width direction of the diaphragm, and the driving rod is fixed on the mounting rod. A driving groove is provided on the driving plate, and the driving rod is inserted into the driving groove and can slide in the driving groove. Sliding the driving plate can drive the mounting rod to rotate.

[0011] By adopting the above technical solution, one end of the driving rod is fixedly connected to the mounting rod, and the other end is slidably connected to the driving plate, so as to realize the connection between the mounting rod and the driving plate. The sliding of the driving plate drives the mounting rod to rotate, and at the same time, the driving plate can support and reinforce the mounting rod during the cutting process, thereby reducing the deformation of the mounting rod during the cutting process and improving the stability of the cutting assembly during use.

[0012] Optionally, the drive plate is provided with two at both ends corresponding to the mounting rod, and the drive assembly further comprises two threaded rods provided corresponding to the drive plate, the threaded rods are rotatably connected to the tool holder and meshed with the drive plate.

[0013] By adopting the above technical solution, two driving plates are connected to the two ends of the mounting rod, thereby further improving the stability of the blade during the cutting process.

[0014] Optionally, a knife seat is arranged between the blade and the mounting rod, the knife seat is rotatably connected to the mounting rod, a slot is provided on the knife seat, an insertion rod is provided on the blade, the insertion rod is detachably inserted in the slot, a limiting piece is rotatably arranged in the slot, a limiting groove is provided on the insertion rod, and the limiting piece can be embedded in the limiting groove by rotating the limiting piece.

[0015] By adopting the above technical solution, the rod is inserted into the slot, and then the rod is limited by rotating the limiting member to achieve installation of the blade. The limiting member is rotated to disengage it from the limiting groove, and the rod slides out of the slot to achieve removal of the blade.

[0016] Optionally, there are two limit members, which are respectively arranged on both sides of the blade.

[0017] By adopting the above technical solution, the two limiting members limit the blade from both sides of the blade, thereby reducing the tilting of the blade and improving the stability of the blade after installation.

[0018] Optionally, a linkage assembly for driving the two limiting members to rotate is provided on the knife seat, and the linkage assembly includes a linkage plate, which is slidably connected to the knife seat, and a linkage gear is provided on the limiting member. A tooth groove meshing with the linkage gear is formed on the linkage plate, and sliding the linkage plate can drive the two linkage gears to rotate synchronously.

[0019] By adopting the above technical solution, the linkage plate drives the two linkage gears to rotate, and then drives the limit members to rotate to achieve synchronous adjustment of the positions of the two limit members, which is convenient for installation and removal of the blade.

[0020] Optionally, a guide member is rotatably provided on the linkage plate, a guide groove is correspondingly provided on the tool holder, the guide groove includes a sliding part and a rotating part, a sliding plane is provided on the guide member, when the sliding plane is parallel to the side of the sliding part, the guide member can enter the sliding part and slide along with the linkage plate.

[0021] By adopting the above technical solution, when the linkage plate needs to slide, the guide is rotated to make the sliding plane correspond to the sliding part, and the guide can move with the linkage plate in this state. When the linkage plate does not need to slide, the guide can be rotated to limit the linkage plate, thereby improving the stability of the limiter limiting the insertion rod.

[0022] Optionally, an elastic sensitive element is provided on the blade seat, the blade abuts against the elastic sensitive element, and can move in a direction close to the elastic sensitive element, and the elastic sensitive element can detect the magnitude of the force applied by the blade to itself.

[0023] By adopting the above technical solution, the force applied to the blade is detected by the elastic sensitive element, so that the sharpness of the blade can be judged, which makes it convenient for the staff to replace the blade in time.

[0024] Optionally, a rotating plate is provided between the mounting rod and the blade seat, a rotating disk is rotatably provided on the rotating plate, a rotating axis of the rotating disk is perpendicular to the rotating axis of the rotating plate, and a plurality of blades are evenly spaced around the rotating axis of the rotating disk.

[0025] By adopting the above technical solution, a rotating plate is provided to facilitate the connection between the blade holder and the mounting rod. The positions of multiple blades can be changed by rotating the rotating plate, so that the staff can quickly change the blades and improve the production efficiency of the flat wire drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram of the cutting assembly at a first angle of an embodiment of the present application.

[0028] Figure 3 It is a structural schematic diagram of the cutting assembly at a second angle according to an embodiment of the present application.

[0029] Figure 4 This is an embodiment of the present application Figure 3 Enlarged view of part A.

[0030] Figure 5 It is a structural schematic diagram of the tool fixing assembly at a first angle according to an embodiment of the present application.

[0031] Figure 6 This is an embodiment of the present application Figure 5 Enlarged view of part B.

[0032] Figure 7 It is a structural schematic diagram of the tool holder fixing assembly at a second angle according to an embodiment of the present application.

[0033] Figure 8 This is an embodiment of the present application Figure 7 Magnified view of part C.

[0034] Fig. 9 It is a schematic diagram of the structure of the guide member of an embodiment of the present application.

[0035] Fig.10It is a structural schematic diagram of a one-way limit assembly according to an embodiment of the present application.

[0036] Fig.11 This is an embodiment of the present application Fig.10 Enlarged view of part D.

[0037] Reference numerals: 11, extruder; 12, guide roller group; 13, cutting assembly; 131, frame; 132, tool holder; 133, blade; 134, mounting rod; 135, rotating plate; 14, take-up frame; 2, driving assembly; 21, driving plate; 22, driving rod; 23, driving slot; 24, threaded rod; 25, driving member; 3, tool fixing assembly; 31, tool holder; 32, slot; 33, plug rod; 34, limit member; 35, rotating slot; 36, Limiting groove; 4. Linkage assembly; 41. Linkage plate; 42. Linkage gear; 43. Guide; 431. Sliding plane; 432. Arc surface; 44. Knob; 45. Guide groove; 451. Sliding part; 452. Rotating part; 5. Elastic sensitive element; 51. Abutment; 511. Connecting plate; 512. Abutment ball; 6. One-way limiting assembly; 61. Clamping rod; 62. Clamping groove; 63. Lead-out inclined plane; 7. Lifting member; 8. Rotating disk; 81. Fixed rod. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-11 This application is described in further detail.

[0039] The embodiment of the present application discloses a wire drawing processing equipment for producing plastic woven bags.

[0040] Reference Figure 1 and Figure 2 A wire drawing processing equipment for producing plastic woven bags, comprising a flat die extruder 11, a guide roller group 12, a cutting assembly 13 and a take-up frame 14 for winding flat wires, which are arranged in sequence. The flat die extruder 11 is used to extrude a sheet of film, and the guide roller group 12 is used to guide the film to move toward the take-up frame 14. The cutting assembly 13 is used to cut the film, and the take-up frame 14 drives the flat wire to approach the take-up frame 14, and the film moves accordingly. When the film moves, the cutting assembly 13 moves relative to the film, so that the cutting assembly 13 can cut the film.

[0041] Reference Figure 3 and Figure 4The cutting assembly 13 includes a frame 131, a knife frame 132 and a plurality of blades 133 mounted on the frame 131, and the plurality of blades 133 are arranged at intervals in the width direction of the film. The blades 133 are perpendicular to the ground and parallel to the length direction of the film, and the blades face the extruder 11, so that the film can be cut longitudinally to facilitate the division of the film into a plurality of flat wires. The blades 133 can move in the width direction of the film, so that the distance between adjacent blades 133 can be adjusted, thereby realizing the adjustment of the width of the flat wire formed by cutting. Moreover, according to the moving distance of the blades 133, it is theoretically possible to realize the cutting of flat wires of countless widths, which broadens the scope of application of the cutting assembly 13 and facilitates the production of flat wires of more widths in the production of manufacturers.

[0042] Reference Figure 2 and Figure 3 The cutting assembly 13 further includes two mounting rods 134, which are arranged parallel and spaced apart in the direction of the membrane width. Figure 4 The mounting rod 134 is connected to the blade holder 132 by rotating around the vertical axis, and the blade 133 is located between the two mounting rods 134 and is connected to the two mounting rods 134 by rotation, forming a parallelogram linkage mechanism. The mounting rod 134 can drive the blade 133 to move in the direction of the diaphragm width during rotation, thereby adjusting the distance between the blades 133. Moreover, since the multiple blades 133 are connected to the mounting rod 134, it is convenient to adjust the distance between the multiple blades 133 synchronously, and the distance between the blades 133 can be adjusted quickly.

[0043] Reference Figure 2 and Figure 3 , the plane perpendicular to the diaphragm width and located in the middle of the diaphragm width is defined as the mid-plane. The rotation axes between the two mounting rods 134 and the tool holder 132 are symmetrical about the mid-plane. The middle position of the mounting rod 134 in the length direction is rotatably connected to the tool holder 132. Figure 4 , multiple blades 133 are divided into two groups and are respectively arranged on both sides of the rotation axis of the mounting rod 134. After the extruder 11 extrude the film, the position of the film is relatively fixed. Through the above arrangement, when the mounting rod 134 rotates, the blades 133 gather in the direction of the middle plane to facilitate cutting of the film.

[0044] Reference Figure 3 and Figure 4 The cutting assembly 13 further includes a rotating plate 135 corresponding to the blade 133, the rotating plate 135 is arranged between the two mounting rods 134, and the two sides of the rotating plate 135 are respectively rotatably connected to the two mounting rods 134. The blade 133 is mounted on the rotating plate 135, and the rotation connection between the blade 133 and the mounting rod 134 is realized, which facilitates the installation of the blade 133.

[0045] Reference Figure 2 and Figure 3 The tool holder 132 is provided with a driving assembly 2 for driving the mounting rod 134 to rotate. Figure 4 The drive assembly 2 includes a drive plate 21 and a drive rod 22. The drive plate 21 is slidably connected to the tool holder 132 in a direction parallel to the width of the diaphragm. Two drive rods 22 are provided. The two drive rods 22 are fixedly welded on two mounting rods 134 respectively. The drive rod 22 is a cylindrical structure. The plane where the rotation axis between the plurality of rotating plates 135 and the mounting rod 134 is located is defined as the coexistence surface. The axis of the drive rod 22 coincides with the coexistence surface. The drive plate 21 is slidably fitted on the tool holder 132 in the direction of the width of the diaphragm, and the drive plate 21 is located above the mounting rod 134. A drive groove 23 is provided on the side of the drive plate 21 close to the ground corresponding to the drive rod 22. The drive groove 23 is a waist-shaped groove, and the length direction of the waist-shaped groove is horizontal and perpendicular to the width direction of the diaphragm. The end of the drive rod 22 facing away from the ground is inserted into the drive groove 23. The drive rod 22 can rotate around its own axis relative to the drive plate 21 in the drive groove 23, and can slide along the length direction of the drive groove 23. The sliding drive plate 21 can drive the mounting rod 134 to rotate, thereby driving the mounting rod 134 to rotate. At the same time, the end of the mounting rod 134 is supported under the action of the drive rod 22 and the drive plate 21, which can improve the stability of the blade 133 during the cutting process and improve the cutting effect.

[0046] Reference Figure 2 and Figure 3 The drive assembly 2 also includes two threaded rods 24 corresponding to the drive plates 21, and the threaded rods 24 are rotatably connected to the tool holder 132. The two threaded rods 24 are coaxially arranged and rotatably connected to the tool holder 132. The threaded rods 24 are threadedly connected to the drive plate 21, and rotating the threaded rods 24 can drive the drive plate 21 to move. A driving member 25 for driving the two threaded rods 24 to move is arranged between the two drive plates 21. The driving member 25 is located in the middle position of the tool holder 132 in the width direction of the diaphragm. In this embodiment, the driving member 25 is a dual-axis motor (57BH2A76-304), the housing of the dual-axis motor is fixedly connected to the tool holder 132, and the two output shafts of the dual-axis motor are respectively coaxially fixedly connected to the two threaded rods 24, thereby realizing the synchronous rotation of the two threaded rods 24. The threads on the threaded rods 24 have opposite rotation directions, so as to drive the two drive plates 21 to move synchronously closer to or away from each other.

[0047] Reference Figure 5 and Figure 6 A tool fixing assembly 3 is arranged between the rotating plate 135 and the blade 133, and the tool fixing assembly 3 includes a tool holder 31. A slot 32 is arranged on the side of the tool holder 31 close to the ground, and an insertion rod 33 is arranged on the blade 133. The insertion rod 33 is inserted into the slot 32 to realize a detachable connection between the blade 133 and the tool holder 31.

[0048] Reference Figure 7 and Figure 8 The tool fixing assembly 3 also includes a limit member 34, which is a fan-shaped structure. A rotation groove 35 is provided on the side wall of the slot 32, and the limit member 34 is connected in the rotation groove 35 by rotating around its own axis, and the axis of the limit member 34 is perpendicular to the opening direction of the slot 32. A limit groove 36 is provided on the insertion rod 33 at a position corresponding to the limit member 34, and the limit groove 36 is an arc groove coaxial with the limit member 34. The arc surface of the limit member 34 is embedded in the limit groove 36, so that the insertion rod 33 can be limited to achieve the fixation of the blade 133. Rotating the limit member 34 can make the limit member 34 sink into the rotation groove 35, so that it is separated from the limit groove 36, which is convenient for the disassembly of the blade 133 and realizes the detachable connection between the blade 133 and the knife seat 31.

[0049] Reference Figure 7 and Figure 8 In order to improve the stability of the blade 133 after being installed on the blade seat 31, two limit members 34 are provided. The two limit members 34 are respectively arranged on both sides of the blade 133 along the thickness direction of the blade 133, so as to limit the insertion rod 33 from different positions.

[0050] Reference Figure 5 and Figure 6 The blade holder 31 is provided with a linkage assembly 4 for driving the limiter 34 to rotate. The linkage assembly 4 includes a linkage plate 41. The linkage plate 41 is slidably connected to the blade holder 31 in a direction perpendicular to the rotation axis of the limiter 34, and the linkage plate 41 is located between the two limiters 34. A linkage gear 42 is provided at one end of the limiter 34 close to the linkage plate 41. A tooth groove meshing with the linkage gear 42 is provided on the side wall of the linkage plate 41 corresponding to the linkage gear 42. The sliding linkage plate 41 can drive the two linkage gears 42 to rotate, thereby driving the two limiters 34 to rotate synchronously, which is convenient for the installation and removal of the blade 133.

[0051] Reference Figure 5 and Fig. 9The linkage assembly 4 also includes a guide 43, which is a block-shaped structure as a whole. The guide 43 is provided with two mutually parallel sliding planes 431 and two coaxial arc surfaces 432 with the same radius. The guide 43 is connected to the side of the linkage plate 41 close to the knife seat 31 by rotation around the axis of the arc surface 432. The knife seat 31 is provided with a guide groove 45, and the guide 43 is located in the guide groove 45. The guide groove 45 includes a sliding part 451 and a rotating part 452. The sliding part 451 is a rectangular groove whose length direction is parallel to the sliding direction of the linkage plate 41, and the rotating part 452 is a circular groove whose radius is equal to the arc surface 432. The rotating part 452 is connected to the sliding part 451. When the two sliding planes 431 are parallel to the length direction of the sliding part 451, the guide 43 can enter the sliding part 451, and the sliding plane 431 fits with the two side surfaces of the sliding part 451, thereby guiding the linkage plate 41 to slide. When the guide member 43 enters the rotating part 452, the rotating guide member 43 can make the sliding plane 431 and the sliding part 451 be set at an angle, thereby blocking the guide member 43 from entering the sliding part 451 to limit the sliding of the linkage plate 41, and then limit the rotation of the limit member 34, thereby improving the stability of the limit member 34 in limiting the insertion rod 33.

[0052] Reference Figure 5 and Fig. 9 A knob 44 is provided on one side of the linkage plate 41 away from the guide member 43. The knob 44 is rotatably connected to the linkage plate 41 and fixedly connected to the guide member 43. On the one hand, it is convenient for the staff to rotate the guide member 43, and on the other hand, it is convenient to slide the linkage plate 41.

[0053] Reference Figure 5 and Figure 6, an elastic sensitive element 5 (which can also be understood as a gravity sensor or a displacement sensor) is also provided on the knife seat 31. The elastic sensitive element 5 is in the shape of a rectangular rod as a whole, and is arranged parallel to the insertion rod 33. And one end is fixed on the knife seat 31. An abutment 51 is provided on the blade 133, and the abutment 51 is located between the elastic sensitive element 5 and the insertion rod 33. The limiting groove 36 on the insertion rod 33 passes through in a direction parallel to the axis of the limiting element 34, so that the insertion rod 33 can slide in a direction parallel to the axis of the limiting element 34. The slot 32 is spaced apart from the insertion rod 33 near the side wall of the elastic sensitive element 5, so that the insertion rod 33 can move in a direction close to the elastic sensitive element 5. During the diaphragm cutting process, the blade 133 is subjected to the reaction force of the diaphragm and has a tendency to move in a direction close to the elastic sensitive element 5. Under the action of the abutment 51, the elastic sensitive element 5 bends, and then the size of the reaction force on the blade 133 is detected through the piezoelectric effect (for heteropolar crystals without a symmetric center, the external force applied to the crystal will not only deform the crystal, but also change the polarization state of the crystal, establish an electric field inside the crystal, and this phenomenon of polarization of the medium due to mechanical force). The sharpness of the blade 133 can be judged according to the size of the reaction force on the blade 133, so that the staff can replace the blade 133 in time.

[0054] Reference Figure 5 and Figure 6 The abutment member 51 includes a connecting plate 511 and an abutment ball 512. One side of the connecting plate 511 is welded to the blade 133, and the other side extends between the elastic sensitive element 5 and the insertion rod 33. The abutment ball 512 is a hemispherical structure, which is arranged between the connecting plate 511 and the elastic sensitive element 5. The spherical surface of the abutment ball 512 abuts against the elastic sensitive element 5. By using the spherical surface, the elastic sensitive element 5 can stably contact with the blade 133 during deformation, so as to facilitate the detection of the force condition of the blade 133.

[0055] Reference Figure 5 and Figure 6 Under normal circumstances, the side wall of the insertion rod 33 away from the elastic sensitive element 5 abuts against the side wall of the slot 32 away from the elastic sensitive element 5. Under the action of the elastic sensitive element 5 and the slot 32, the movement of the insertion rod 33 can be limited, thereby reducing the shaking of the blade 133 during use.

[0056] Reference Fig.10 and Fig.11, a rotating disk 8 is arranged on the rotating plate 135, and the rotating disk 8 is a disc-shaped structure. A fixed rod 81 is arranged below the rotating plate 135, and the rotating disk is connected to the fixed rod 81 by rotating around its own axis. The rotating axis of the rotating disk 8 is parallel to the width direction of the diaphragm, and the knife seat 31 is installed on the rotating disk 8. And at least three knife seats 31 are evenly spaced around the axis direction of the rotating disk 8, and four are arranged in this embodiment. At the same time, multiple blades 133, plug rods 33, and elastic sensitive elements 5 are correspondingly arranged. Rotating the rotating disk 8 can quickly move adjacent blades 133 to positions corresponding to the diaphragm. Moreover, during the diaphragm segmentation process, the rotating disk 8 is rotated, and before the blades 133 are separated from the diaphragm, the adjacent blades 133 can move to the position for cutting the diaphragm, so that there is no need to stop the machine during the replacement of the blades 133, thereby improving the overall efficiency of the flat wire drawing process.

[0057] Reference Fig.10 and Fig.11 A one-way limit assembly 6 is provided at a position on the rotating plate 135 corresponding to the rotating disk 8. The one-way limit assembly 6 includes a clamping rod 61, which is slidably connected to the rotating disk 8 in a direction parallel to the rotating axis of the rotating disk 8. A clamping groove 62 is provided at a position on the fixed rod 81 corresponding to the clamping rod 61. The sliding of the clamping rod 61 can enable one end of the clamping rod 61 to be inserted into the clamping groove 62, thereby limiting the rotation of the rotating disk 8 and improving the stability of the blade 133 during the cutting process.

[0058] Reference Fig.10 and Fig.11 , the blade 133 located at the bottom is defined as the blade in use, and the blades 133 at other positions are defined as spare blades. Figure 1 , the rotation in the direction that makes the reused blade approach the extruder 11 is defined as forward rotation. A lead-out inclined surface 63 is provided on one of the side walls of the slot 62. When the rotating disk 8 rotates forward, the lead-out inclined surface 63 abuts against the clamping rod 61. Under the action of the lead-out inclined surface 63, the clamping rod 61 can be automatically guided to disengage from the slot 62, canceling the limit on the rotating disk 8, so that the rotating disk 8 can rotate freely in the forward direction. When the rotating disk 8 rotates in the reverse direction, it is blocked by the clamping rod 61, thereby preventing the rotating disk 8 from rotating in the reverse direction, thereby realizing the unidirectional rotation of the rotating disk 8. The one-way limiting assembly 6 also includes an elastic member for applying a force to the clamping rod 61 to make it move in the direction close to the slot 62. In this embodiment, the elastic member is a spring, one end of the spring is connected to the clamping rod, and the other end is connected to the rotating disk.

[0059] Reference Figure 1 and Figure 3, a lifting member 7 for driving the knife holder 132 to rise and fall is provided on the frame 131. At the beginning of the flat wire production, the end of the film moves from the side close to the extruder 11 to the direction close to the take-up frame 14. At this time, the cutting assembly 13 is located above the film. When the end of the film moves to the side of the cutting assembly 13 away from the extruder 11, the cutting assembly 13 is driven downward by the lifting member 7, so that the blade can cut the film, which is convenient for the smooth progress of the process. In this embodiment, the lifting member 7 is a cylinder, one end of which is fixed on the frame 131, and the other end is fixed to the knife holder 132. The knife holder 132 is driven to rise and fall by the extension and contraction of the cylinder piston rod, so as to realize the lifting and lowering of the cutting assembly 13.

[0060] The implementation principle of the wire drawing processing equipment for the production of plastic woven bags in the embodiment of the present application is as follows: a parallelogram structure is formed between the two mounting rods 134 and the blades 133. During the rotation of the mounting rods 134, on the one hand, the orientation of the blades between the multiple blades 133 will not change. On the other hand, the dimensions of the multiple blades 133 in the width direction of the diaphragm can be enlarged or reduced, thereby realizing stepless adjustment of the distance between the blades 133, which is convenient for manufacturers to produce flat wires of various widths.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wire drawing processing device for producing plastic woven bags, comprising an extruder (11), a guide roller group (12), a cutting assembly (13) and a wire take-up frame (14) arranged in sequence, characterized in that: The cutting assembly (13) comprises a frame (131), a knife frame (132) and a blade (133) mounted on the frame (131); the blade (133) is arranged in plurality on the knife frame (132); the plurality of blades (133) are arranged at intervals in a direction parallel to the width of a diaphragm to be cut; the cutting assembly (13) further comprises two mounting rods (134); the two mounting rods (134) are arranged in parallel and at intervals on the knife frame (132); the blade (133) is located between the two mounting rods (134) and is rotatably connected to the two blades (133); the mounting rod (134) is rotated to cause the blade (133) to be displaced in a direction parallel to the width of the diaphragm.

2. The wire drawing equipment for producing plastic woven bags according to claim 1, characterized in that: The rotation axis of the installation rod (134) is located near the middle of the width of the diaphragm, and the plurality of blades (133) are divided into two groups and are respectively arranged on both sides of the rotation axis of the installation rod (134).

3. The wire drawing equipment for producing plastic woven bags according to claim 2, characterized in that: The tool holder (132) is provided with a driving assembly (2) for driving the mounting rod (134) to rotate. The driving assembly (2) comprises a driving plate (21) and a driving rod (22). The driving plate (21) is slidably connected to the tool holder (132) along the width direction of the diaphragm. The driving rod (22) is fixed to the mounting rod (134). A driving groove (23) is provided on the driving plate (21). The driving rod (22) is inserted into the driving groove (23) and can slide in the driving groove (23). Sliding the driving plate (21) can drive the mounting rod (134) to rotate.

4. The wire drawing equipment for producing plastic woven bags according to claim 3, characterized in that: The drive plate (21) is provided with two ends corresponding to the mounting rod (134), and the drive assembly (2) further comprises two threaded rods (24) provided corresponding to the drive plate (21), and the threaded rods (24) are rotatably connected to the tool holder (132) and meshed with the drive plate (21).

5. A wire drawing equipment for producing plastic woven bags according to claim 3 or 4, characterized in that: A knife seat (31) is arranged between the blade (133) and the mounting rod (134); the knife seat (31) is rotatably connected to the mounting rod (134); a slot (32) is provided on the knife seat (31); an insertion rod (33) is provided on the blade (133); the insertion rod (33) is detachably inserted into the slot (32); a limiting member (34) is rotatably arranged in the slot (32); a limiting groove (36) is provided on the insertion rod (33); the limiting member (34) can be embedded in the limiting groove (36) by rotating the limiting member (34).

6. The wire drawing equipment for producing plastic woven bags according to claim 5, characterized in that: The number of the limiting members (34) is two, and the two limiting members (34) are respectively arranged on two sides of the blade (133).

7. The wire drawing equipment for producing plastic woven bags according to claim 6, characterized in that: The knife seat (31) is provided with a linkage assembly (4) for driving the two limiting members (34) to rotate. The linkage assembly (4) comprises a linkage plate (41). The linkage plate (41) is slidably connected to the knife seat (31). A linkage gear (42) is provided on the limiting member (34). A tooth groove meshing with the linkage gear (42) is formed on the linkage plate (41). Sliding the linkage plate (41) can drive the two linkage gears (42) to rotate synchronously.

8. The wire drawing equipment for producing plastic woven bags according to claim 7, characterized in that: A guide member (43) is rotatably provided on the linkage plate (41), a guide groove (45) is correspondingly provided on the knife seat (31), the guide groove (45) comprises a sliding portion (451) and a rotating portion (452), a sliding plane (431) is provided on the guide member (43), and when the sliding plane (431) is parallel to the side surface of the sliding portion (451), the guide member (43) can enter the sliding portion (451) and slide along with the linkage plate (41).

9. The wire drawing equipment for producing plastic woven bags according to claim 5, characterized in that: An elastic sensitive element (5) is provided on the blade seat (31), the blade (133) abuts against the elastic sensitive element (5) and is capable of moving in a direction approaching the elastic sensitive element (5), and the elastic sensitive element (5) is capable of detecting the magnitude of a force applied by the blade (133) to itself.

10. The wire drawing equipment for producing plastic woven bags according to claim 9, characterized in that: A rotating plate (135) is provided between the mounting rod (134) and the blade seat (31), a rotating disk (8) is rotatably provided on the rotating plate (135), the rotating axis of the rotating disk (8) being perpendicular to the rotating axis of the rotating plate (135), and a plurality of blades (133) are evenly spaced around the rotating axis of the rotating disk (8).

Images