A plastic woven bag preparation wire drawing machine

Abstract

The present invention proposes a wire drawing machine for preparing plastic woven bags, which relates to the technical field of plastic wire drawing machines, including a cutting assembly for cutting embryonic wires, an adjusting mechanism, and a bracket, wherein the adjusting mechanism is installed on the bracket, and a plurality of cutting assemblies are equidistantly distributed on the adjusting mechanism, and the adjusting mechanism can equidistantly adjust the spacing between the cutting assemblies. The present invention can be infinitely adjusted according to the required embryonic wire width, and the width of the embryonic wire can be adjusted in a continuous linear manner; the present invention can make the adjustment spacing between the cutting assemblies more stable through a double-track method, and the articulated rods in the present invention form a rhombus, and when the cutting assemblies are adjusted, the spacing between each two cutting assemblies can be made the same, thereby avoiding the problem that the spacing adjustment of the cutting assemblies is difficult to unify.

Description

Technical Field

[0001] The invention relates to the technical field of plastic wire drawing machines, in particular to a wire drawing machine for preparing plastic woven bags. Background Art

[0002] Woven bags, also known as snakeskin bags, are a type of plastic bag used for packaging. Their raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene. Woven bags are generally white or off-white in color, non-toxic and odorless, and generally less harmful to the human body. Although they are made of various chemical plastics, they are more environmentally friendly and have greater recycling efforts. Woven bags have a wide range of uses, mainly used for the packaging and packaging of various items, and are widely used in industry; plastic woven bags are made of polypropylene resin as the main raw material, which is formed by extrusion into film, cutting of rough embryo wire, stretching into flat wire, and then weaving and bag making. Composite plastic woven bags are made of plastic woven cloth as the base material, which is compounded by the cast film method.

[0003] In the processing flow of plastic woven bags, they need to be drawn by a wire drawing machine before being woven and formed. Conventional wire drawing machines cannot infinitely adjust the width of the embryo wires when cutting the extruded film into embryo wires. The width of the embryo wires may have a large error when changing, and cannot meet production needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a plastic woven bag preparation wire drawing machine to infinitely change the width of the embryo wire and reduce the width error between the embryo wires.

[0005] Based on the technical problems existing in the background technology, the present invention proposes a plastic woven bag preparation wire drawing machine, including a cutting component for cutting embryonic wire, an adjusting mechanism, and a bracket, wherein the adjusting mechanism is installed on the bracket, and multiple cutting components are equidistantly distributed on the adjusting mechanism, and the adjusting mechanism can equidistantly adjust the spacing between the cutting components.

[0006] Preferably, the adjustment mechanism includes a screw rod, an articulated rod, and a sliding rod, wherein the screw rod and the sliding rod are installed in parallel on the bracket, the multiple articulated rods are hinged in a diamond shape, the cutting assembly is hinged at the top hinge of the two articulated rods, the slider is hinged at the middle intersection of the two articulated rods, and the balancing block is hinged at the bottom hinge of the two articulated rods, the screw rod and the sliding rod are installed in parallel on the bracket, one of the sliders is threadedly connected to the screw rod, and the balancing block is slidably connected to the sliding rod.

[0007] Preferably, the sliding rod is fixedly connected to one of the balancing blocks by means of screws.

[0008] Preferably, the cutting assembly includes a clamp and a cutter body, wherein the clamp is hinged between two hinged rods and located at the top hinge of the two hinged rods, the cutter body is installed on the clamp, a tension spring is connected between the clamp and the balance block, and the tension spring is in a stretched state.

[0009] Preferably, sliding grooves are provided at both ends of the bracket, and both ends of the sliding rod are located in the sliding grooves, and the sliding rod can slide toward or away from the knife body through the sliding grooves.

[0010] Preferably, it also includes a driving mechanism, which is installed on the bracket and connected to the screw rod.

[0011] Preferably, a roller winding mechanism is also installed on the bracket, and the roller winding mechanism includes a roller body and a mounting frame, wherein the mounting frame is installed at both ends of the bracket, and two rotating rollers are distributed on both sides of the knife body and are rotatably installed between the two mounting frames.

[0012] Preferably, the rotation axis of the roller relative to the mounting frame and the rotation axis of the screw rod relative to the bracket are parallel to each other.

[0013] Compared with the prior art, the plastic woven bag preparation wire drawing machine proposed by the present invention adopts the above technical solution and achieves the following technical effects:

[0014] The present invention can be infinitely adjusted according to the required embryo wire width, and the width of the embryo wire can be adjusted in a continuous linear manner;

[0015] During operation, the present invention can make the spacing between the cutting components more stable by means of double tracks. The hinged rods in the present invention form a rhombus, so that when the cutting components are adjusted, the spacing between every two cutting components can be changed in the same way, thus avoiding the problem of difficulty in uniformity in adjusting the spacing between the cutting components.

[0016] During operation, the tension spring arranged between the clamp and the balance block in the present invention can effectively make the knife body on the clamp stand upright, avoiding the rotation of the knife body during the process of cutting the embryo silk, which leads to the failure of embryo silk cutting, and the tension springs can pull the two corners of the diamond formed by the hinged rod to improve the stability of the overall structure.

[0017] When the machine stops working, all the blades can be gathered to one side of the bracket, so that the staff can check and maintain the blades conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0019] Figure 2 Schematic diagram of the installation structure of the adjustment mechanism and the cutting assembly of the embodiment of the present invention Figure 1 ;

[0020] Figure 3 Schematic diagram of the installation structure of the adjustment mechanism and the cutting assembly of the embodiment of the present invention Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the partial structure of a cutting assembly and an adjusting assembly according to a first embodiment of the present invention;

[0022] Figure 5 It is a side view of the overall structure of the first embodiment of the present invention;

[0023] Figure 6 It is a side view of the overall internal structure of the first embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the installation structure of the adjustment mechanism and the cutting assembly of the second embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the installation structure of the adjustment mechanism and cutting assembly of Example 3 of the present invention.

[0026] In the figure: 1. cutting assembly; 2. adjusting mechanism; 3. bracket; 21. screw rod; 22. hinged rod; 23. sliding rod; 24. sliding block; 25. balancing block; 11. clamp; 12. knife body; 4. tension spring; 31. slide groove; 5. driving mechanism; 6. roller winding mechanism; 61. roller body; 62. mounting frame; 7. threaded rod; 8. hinged part; 111. first connecting part; 251. second connecting part. DETAILED DESCRIPTION

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Example 1: Please refer to Figure 1-Figure 6The present invention provides a wire drawing machine for preparing plastic woven bags, comprising a cutting assembly 1 for cutting embryonic silk, an adjusting mechanism 2, and a bracket 3, wherein the adjusting mechanism 2 is mounted on the bracket 3, and a plurality of cutting assemblies 1 are evenly distributed on the adjusting mechanism 2, and the adjusting mechanism 2 can evenly adjust the spacing between the cutting assemblies 1. The spacing between the cutting assemblies 1 is the width of the embryonic silk, and the spacing between the cutting assemblies 1 is enlarged or reduced under the drive of the adjusting mechanism 2, so as to meet the requirements of different embryonic silk widths.

[0030] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 4 The adjusting mechanism 2 includes a screw rod 21, an articulated rod 22, and a sliding rod 23, wherein the screw rod 21 and the sliding rod 23 are installed in parallel on the bracket 3, and the multiple articulated rods 22 are hinged in a diamond shape. The cutting assembly 1 is hinged at the top hinge of two articulated rods 22, and the slider 24 is hinged at the middle intersection of the two articulated rods 22. The balancing block 25 is hinged at the bottom hinge of the two articulated rods 22. The screw rod 21 and the sliding rod 23 are installed in parallel on the bracket 3, one of the sliders 24 is threadedly connected to the screw rod 21, and the balancing block 25 is slidably connected to the sliding rod 23.

[0031] In the present invention, the shape of the hinged rod 22 and the position of the opening on the hinged rod 22 are the same. Circular holes are opened at both ends and the middle part of the hinged rod 22. A slider 24 is clamped between the two hinged rods 22 and in the middle position. The circular hole in the middle of the hinged rod 22 is hinged to the slider 24 through a screw. One slider 24 and the two hinged rods 22 form an X-shaped hinge group. The upper ends of the hinged rods 22 of the two hinged groups are hinged with the cutting assembly 1, and the lower ends are hinged with the balancing block 25. A rhombus or parallelogram will be formed between the two hinged groups. In the present invention, it is a rhombus. At this time, the balancing block 25 will be located directly below the cutting assembly 1.

[0032] Furthermore, the rotation of the screw rod 21 can control a slider 24 to slide. The present invention has multiple sliders 24, and only one slider 24 is connected to the screw rod 21 by a thread. When the screw rod 21 rotates, it drives the slider 24 to move along the screw rod 21, thereby reducing the spacing between the sliders 24. Since a diamond structure is formed between the hinged rods 22, when the spacing between the sliders 24 is reduced, the hinges between the hinged rods 22 will also be correspondingly close, and the spacings moved between the hinged rods 22 will be the same, so the adjusted spacings between the cutting components 1 will also be the same, ensuring that the spacings of the cutting components 1 after adjustment are the same; the rotation of the screw rod 21 can be stopped at any time, so the adjustment of the spacing between the cutting components 1 is continuous, thereby achieving an infinitely variable adjustment effect.

[0033] Furthermore, in the present invention, one of the sliders 24 is driven to move by the screw rod 21 to adjust the spacing between the cutting components 1. The driving method can also be implemented by a telescopic mechanism. The driving direction of the telescopic mechanism is parallel to the direction of movement of the slider 24 relative to the screw rod 21 in the present invention, and the telescopic mechanism needs to be connected to the hinge rod 22.

[0034] Furthermore, the screw rod 21 and the slide bar 23 have two sets of guiding functions, so the screw rod 21 and the slider 24 and the slide bar 23 and the balance block 25 can act as double tracks, which can prevent the screw rod 21 from rotating about the axis of the screw rod 21 and play a role of mutual balance.

[0035] In a specific embodiment, refer to Figure 1 , the slide bar 23 is fixedly connected to one of the balancing blocks 25 by screws. The balancing blocks 25 on the slide bar 23 need to slide, but there needs to be a fixed point between all the balancing blocks 25, so one of the balancing blocks 25 needs to be fixed to the slide bar 23, so that the remaining balancing blocks 25 can slide to move toward or away from the fixed balancing block 25. Preferably, in the present invention, the balancing block 25 at the edge is fixed to the slide bar 23, and the slider 24 away from the fixed balancing block 25 is threadedly connected to the screw rod 21. Under this setting, the sliding of the screw rod 21 can drive the hinged rod 22 to fold toward the fixed balancing block 25.

[0036] In a specific embodiment, refer to Figure 4 The cutting assembly 1 includes a clamp 11 and a blade 12, wherein the clamp 11 is hinged between two hinge rods 22 and is located at the top hinge of the two hinge rods 22, and the blade 12 is installed on the clamp 11, and a tension spring 4 is connected between the clamp 11 and the balance block 25, and the tension spring 4 is in a stretched state. In the present invention, a slit is provided on the clamp 11, and the blade 12 is installed in the slit, and screw holes are connected on both sides of the slit, and screws are installed in the screw holes and abut against the blade 12 for fixing, so that the blade 12 can be replaced.

[0037] In a further embodiment, since the hinge between the clamp 11 and the hinge rod 22 is a single axis, the clamp 11 may rotate, which may cause the distance between the two blades 12 to change or become unstable. Since the hinge shape between the hinge rods 22 is a diamond shape, the balance block 25 is located directly below the clamp 11, and the two ends of the tension spring 4 are respectively connected to the clamp 11 and the balance block 25. Then, the tension spring 4 will always pull the clamp 11 in the direction of the balance block 25, so that the clamp 11 can be straightened and the blade 12 can be vertical, ensuring that the distance between each blade 12 is the same.

[0038] In further implementation, the present invention can also use a telescopic rod to place the clamp 11 for rotation, resulting in an unfixed or unstable position of the knife body 12, and the two ends of the telescopic rod are respectively connected to the balance block 25 and the clamp 11.

[0039] In a specific embodiment, refer to Figure 2 , Figure 5 , the two ends of the bracket 3 are provided with a slide groove 31, the two ends of the slide rod 23 are located in the slide groove 31, and the slide rod 23 can slide in the direction close to or away from the blade 12 through the slide groove 31. The slide grooves 31 are set at both ends of the bracket 3, and the lengths of the slide grooves 31 are the same. The slide grooves 31 are used for the sliding of the slide rod 23, and the sliding direction of the slide rod 23 is the direction close to or away from the blade 12. When the screw rod 21 rotates and the sliders 24 approach each other, the distance between the clamps 11 will be close to each other, and the spacing will be reduced, so that the balance block 25 will move in the direction away from the blade 12. The slide groove 31 can not only allow the slide rod 23 to slide, but also limit the slide rod 23 to prevent the slide rod 23 from rotating about the axis of the screw rod 21.

[0040] In a specific embodiment, refer to Figure 1 , further comprising a driving mechanism 5, which is mounted on the bracket 3 and connected to the screw rod 21. The driving mechanism 5 in the present invention is a motor, which can drive the screw rod 21 to rotate.

[0041] Furthermore, the driving mechanism 5 may also be a telescopic mechanism, which drives the slider 24 or the balance bar, and its driving direction is parallel to the axis of the slide bar 23 .

[0042] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 5 A roller winding mechanism 6 is also installed on the bracket 3, and the roller winding mechanism 6 includes a roller body 61 and a mounting frame 62, wherein the mounting frame 62 is installed at both ends of the bracket 3, and two rotating rollers are distributed on both sides of the knife body 12 and are rotatably installed between the two mounting frames 62.

[0043] In a specific embodiment, refer to Figure 2 , Figure 3 , the rotation axis of the roller relative to the mounting frame 62 and the rotation axis of the screw rod 21 relative to the bracket 3 are parallel to each other. In the present invention, in order to prevent the embryo silk from scratching the bracket 3, a switch is provided to protect the embryo silk to prevent the embryo silk from causing friction with the bracket 3. At the same time, the contact points between the embryo silk and the two rollers form a connecting line, and the tip of the knife body 12 is higher than the connecting line, ensuring that the knife body 12 can cut the embryo silk.

[0044] Example 2: Please refer to Figure 7A plurality of hinged rods 22 are hinged in a diamond shape, a clamp 11 is hinged between the upper hinged ends of two hinged rods 22, a balancing block 25 is hinged between the lower hinged ends, the intersection area between the two hinged rods 22 is hinged by a hinge 8, a screw rod 7 is passed through the clamps 11, one of the clamps 11 is threadedly connected to the screw rod 7, a sliding rod 23 is passed through the balancing blocks 25, one of the balancing blocks 25 is fixedly connected to the sliding rod 23, the screw rod 7 and the sliding rod 23 are parallel to each other, and a tension spring 4 is connected between the balancing block 25 and the clamp 11;

[0045] Relative to the first embodiment, the slider 24 is combined with the clamp 11, and the clamp 11 in the second embodiment plays the dual roles of the clamp 11 and the slider 24 in the first embodiment. The rotation of the screw rod 7 will drive one of the clamps 11 to move and drive the clamps 11 to move closer or farther away from each other under the diamond structure.

[0046] Example 3: Please refer to Figure 8 , circular holes are provided at both ends of the hinged rod 22, the hinged rods 22 are hinged end to end, and a serrated shape is formed between the hinged rods 22, the upper hinge of the hinged rod 22 is hinged with a clamp 11, and the lower hinge is hinged with a balancing block 25, the sliding rod 23 passes through the balancing blocks 25, and the screw rod 7 passes through the clamps 11. The two hinged rods 22 cooperate with the sliding rod 23 to form an isosceles triangle, one of the clamps 11 is threadedly connected to the screw rod 7, the sliding rod 23 passes through the balancing blocks 25, one of the balancing blocks 25 is fixedly connected to the sliding rod 23, the screw rod 7 and the sliding rod 23 are parallel to each other, the clamp 11 has a first connecting member 111, and the balancing block 25 has two second connecting members 251, and tension springs 4 are respectively installed between the first connecting member 111 and the two second connecting members 251;

[0047] In the third embodiment, the structure is reduced compared with the first embodiment, and a more compact isosceles triangle structure is adopted. The angles formed by the two tension springs 4 and the slide rod 23 are the same, so the two tension springs 4 will also form an isosceles triangle. Then, the tension of the two tension springs 4 will be vertically downward, and the clamp 11 will be vertically upward, which can reduce the structure compared with the first embodiment.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic woven bag making wire drawing machine, characterized in that: It comprises a cutting assembly (1) for cutting embryonic silk, an adjusting mechanism (2), and a support (3), wherein the adjusting mechanism (2) is mounted on the support (3), a plurality of cutting assemblies (1) are equidistantly distributed on the adjusting mechanism (2), and the adjusting mechanism (2) can equidistantly adjust the spacing between the cutting assemblies (1); The adjustment mechanism (2) comprises a screw rod (21), an articulated rod (22), and a sliding rod (23), wherein the screw rod (21) and the sliding rod (23) are mounted in parallel on the bracket (3), the plurality of articulated rods (22) are articulated in a rhombus shape, the top articulation points of two articulated rods (22) are articulated to the cutting assembly (1), the middle intersection points of the two articulated rods (22) are articulated to a slider (24), and the bottom articulation points of the two articulated rods (22) are articulated to a balancing block (25), one of the sliders (24) is threadedly connected to the screw rod (21), the balancing block (25) is slidably connected to the sliding rod (23), and the sliding rod (23) is fixedly connected to one of the balancing blocks (25) by screws; The cutting assembly (1) comprises a clamp (11) and a blade (12), wherein the clamp (11) is hinged between two hinged rods (22) and is located at the top hinge of the two hinged rods (22); the blade (12) is mounted on the clamp (11); a tension spring (4) is connected between the clamp (11) and the balance block (25), and the tension spring (4) is in a stretched state; Slide grooves (31) are formed at both ends of the bracket (3), and both ends of the slide rod (23) are located in the slide grooves (31). The slide rod (23) can slide in a direction close to or away from the blade body (12) through the slide grooves (31).

2. The plastic woven bag making wire drawing machine according to claim 1, characterized in that: It also includes a driving mechanism (5), which is mounted on the bracket (3) and connected to the screw rod (21).

3. The plastic woven bag making wire drawing machine according to claim 2, characterized in that: The support (3) is also provided with a roller winding mechanism (6), the roller winding mechanism (6) comprising a roller body (61) and a mounting frame (62), wherein the mounting frame (62) is mounted at both ends of the support (3), and two rotating rollers are distributed on both sides of the knife body (12) and are rotatably mounted between the two mounting frames (62).

4. The plastic woven bag making wire drawing machine according to claim 3, characterized in that: The rotation axis of the roller relative to the mounting frame (62) and the rotation axis of the screw rod (21) relative to the bracket (3) are parallel to each other.

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