A cutting mechanism of polyester gray fabric processing machine

Abstract

The utility model discloses a kind of polyester grey cloth processing machine cutting mechanism, including workbench and the conveyer belt of setting in the upper end surface of workbench, the upper portion of the conveyer belt is provided with cutting knife, the upper portion of the conveyer belt is provided with intermittent push-cut component, the cutting knife is connected on intermittent push-cut component, the side of intermittent push-cut component is provided with roller assembly.The utility model is replaced by the scheme of traditional "cylinder+ cutting knife" by the setting of intermittent push-cut component, the cutting length of polyester grey cloth can be adjusted by the rotation speed of control driving motor in this scheme, so that the use of programming controller and the user of programming controller are omitted, so as to reduce factory equipment procurement cost and employment cost;In addition, intermittent push-cut component can flatten potential polyester grey cloth wrinkle instantly, so as to improve the cutting quality problem of polyester grey cloth.

Description

Technical Field

[0001] This utility model belongs to the field of polyester fabric processing technology, and in particular relates to a cutting mechanism for a polyester fabric processing machine. Background Technology

[0002] A polyester greige fabric cutting mechanism is a mechanical device used to cut polyester (or other synthetic fiber) greige fabric into the required size or shape during the processing of polyester (or other synthetic fiber) greige fabric. Polyester greige fabric is typically undyed or unfinished and requires further processing to achieve the final product specifications and quality. The cutting mechanism plays a crucial role in this process, ensuring accurate and even cuts that meet the requirements of subsequent processing.

[0003] Currently, the commonly used polyester fabric processing machine cutting mechanism adopts the "cylinder + cutter" solution. The cylinder pushes the cutter to move up and down to cut the polyester fabric. However, the intermittent extension and retraction of the cylinder requires the programmable controller to control the extension and retraction frequency of the cylinder. The use of the programmable controller not only increases the operating cost of the equipment, but also increases the factory's labor costs by hiring personnel to operate the programmable controller.

[0004] Therefore, we propose a cutting mechanism for polyester fabric processing machines. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a cutting mechanism for a polyester fabric processing machine.

[0006] To achieve the above objectives, this utility model proposes a cutting mechanism for a polyester fabric processing machine, including a worktable and a conveyor belt disposed on the upper surface of the worktable. A cutting blade is disposed above the conveyor belt, and an intermittent pushing and cutting assembly is disposed above the conveyor belt. The cutting blade is connected to the intermittent pushing and cutting assembly, and a roller pressing assembly is disposed on one side of the intermittent pushing and cutting assembly.

[0007] Preferably, the intermittent push-cutting assembly includes a U-shaped frame, a drive shaft, a cam, a push plate, a slider, a limiting groove, a helical spring, a drive motor, a push-pull plate, and a return spring, with the U-shaped frame disposed on the upper end face of the worktable.

[0008] Preferably, the drive shaft is rotatably connected to the inner side of the U-shaped frame, and the cam is provided in multiple sets. The multiple sets of cams are arranged on the drive shaft, and each set of cams is provided with multiple cams. The convex directions of the multiple cams are the same, and the convex directions of adjacent sets of cams are opposite. The push plate is located below the drive shaft, and the cutting blade is arranged on the lower end face of the push plate.

[0009] Preferably, the sliders are disposed at both ends of the push plate, the limiting grooves are formed on the two inner walls of the U-shaped frame, the sliders at both ends of the push plate are slidably connected to the two limiting grooves on the U-shaped frame, the helical spring is disposed on the lower inner end face of the limiting groove, and one end of the helical spring is connected to the slider inside the limiting groove.

[0010] Preferably, the drive motor is mounted on the U-shaped frame, the output end of the drive motor is connected to the drive shaft, the push-pull plate is rotatably mounted on both sides of the push plate via a connecting seat, the return spring is located at the angle between the push plate and the push-pull plate, and both ends of the return spring are connected to the push plate and the push-pull plate respectively.

[0011] Preferably, the roller pressing assembly includes connecting horizontal plates disposed on both sides of the upper end face of the conveyor belt, and a conveyor wheel is rotatably disposed on one side wall of the two connecting horizontal plates, the conveyor wheel pressing against the conveyor belt, and a roller pressing wheel is disposed at one end of the conveyor wheel.

[0012] Preferably, the diameter of the roller is smaller than the diameter of the conveyor wheel, and the positions of the two connecting cross plates correspond to each other.

[0013] The polyester fabric processing machine cutting mechanism proposed in this utility model can bring the following beneficial effects: By replacing the traditional "cylinder + cutter" solution with an intermittent push-cutting component, the cutting length of the polyester fabric can be adjusted by controlling the speed of the drive motor. This eliminates the need for a programmable controller and the personnel required to operate it, thereby reducing the factory's equipment procurement and labor costs. In addition, the intermittent push-cutting component can immediately flatten any potential wrinkles in the polyester fabric, thus improving the cutting quality of the polyester fabric. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a perspective view of the intermittent push-cut component of this utility model; Figure 3 This is a first-person exploded view of the intermittent push-cut component of this utility model; Figure 4 This is a second-view exploded view of the intermittent push-cut component of this utility model; Figure 5 This is a perspective view of the roller pressing assembly of this utility model.

[0016] In the picture: 1. Workbench; 2. Conveyor belt; 3. Cutting blade; 4. Intermittent push-cut assembly; 41. U-shaped frame; 42. Drive shaft; 43. Cam; 44. Push plate; 45. Slider; 46. Limiting groove; 47. Helical spring; 48. Drive motor; 49. Push-pull plate; 410. Return spring; 5. Roller assembly; 51. Connecting cross plate; 52. Conveyor wheel; 53. Roller wheel. Detailed Implementation

[0017] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0022] like Figures 1-5 As shown, an embodiment of this utility model proposes a cutting mechanism for a polyester fabric processing machine, including a worktable 1 and a conveyor belt 2 disposed on the upper surface of the worktable 1. A cutting blade 3 is disposed above the conveyor belt 2, and an intermittent pushing and cutting assembly 4 is disposed above the conveyor belt 2. The cutting blade 3 is connected to the intermittent pushing and cutting assembly 4, and a roller pressing assembly 5 is disposed on one side of the intermittent pushing and cutting assembly 4.

[0023] The intermittent push-cut assembly 4 includes a U-shaped frame 41, a drive shaft 42, a cam 43, a push plate 44, a slider 45, a limiting groove 46, a helical spring 47, a drive motor 48, a push-pull plate 49, and a return spring 410. The U-shaped frame 41 is disposed on the upper end surface of the worktable 1.

[0024] The drive shaft 42 is rotatably connected to the inner side of the U-shaped frame 41. Multiple sets of cams 43 are provided on the drive shaft 42. Each set of cams 43 has multiple cams. The convex directions of the multiple cams 43 are the same, and the convex directions of adjacent sets of cams 43 are opposite. The push plate 44 is located below the drive shaft 42, and the cutting blade 3 is provided on the lower end face of the push plate 44.

[0025] It should be noted that there is an appropriate gap between the two adjacent sets of cams 43.

[0026] The sliders 45 are disposed at both ends of the push plate 44, and the limiting grooves 46 are formed on the two inner walls of the U-shaped frame 41. The sliders 45 at both ends of the push plate 44 are slidably connected to the two limiting grooves 46 on the U-shaped frame 41, and the helical spring 47 is disposed on the lower inner end face of the limiting groove 46. One end of the helical spring 47 is connected to the slider 45 inside the limiting groove 46.

[0027] It should be noted that the size of the limiting groove 46 is matched with that of the slider 45, so that the push plate 44 is stable when it moves up and down along the limiting groove 46.

[0028] The drive motor 48 is mounted on the U-shaped frame 41. The output end of the drive motor 48 is connected to the drive shaft 42. The push-pull plate 49 is rotatably mounted on both sides of the push plate 44 via a connecting seat. The reset spring 410 is located at the angle between the push plate 44 and the push-pull plate 49, and both ends of the reset spring 410 are connected to the push plate 44 and the push-pull plate 49 respectively.

[0029] It should be noted that the push-pull plate 49 contacts the polyester fabric 2-3 mm earlier than the cutting blade 3, and forms a dynamic angle of 15°-20° under the action of the return spring 410. As the push plate 44 continues to move down, the angles on both sides expand synchronously, generating a lateral stretching force of 5-8N on the cutting line area, instantly smoothing out potential wrinkles; when the blade touches the fabric, the fabric is already in a state of no folds and no tension.

[0030] In this embodiment, the drive motor 48 is first started, which drives the drive shaft 42 to rotate. The drive shaft 42 drives multiple sets of cams 43 to rotate. When the protrusion of the cam 43 presses against the push plate 44, the push plate 44 moves down along the limiting groove 46. The sliders 45 at both ends of the push plate 44 squeeze the helical spring 47 inside the limiting groove 46. The downward movement of the push plate 44 drives the cutting blade 3 and the push-pull plate 49 to press down. When the protrusion of the cam 43 is misaligned with the push plate 44, the helical spring 47 quickly restores the push plate 44 to its initial position through its own elastic potential energy. The above steps are repeated, and the cutting blade 3 intermittently cuts the polyester fabric, thereby cutting the polyester fabric. Cut the fabric into equal lengths. At the same time, place the polyester greige fabric on the conveyor belt 2. The polyester greige fabric will pass through the roller pressing assembly 5 during the conveying process. The polyester greige fabric that has passed through the roller pressing assembly 5 will be conveyed to the bottom of the cutting knife 3. When the cam 43 pushes the push plate 44 down, the downward movement of the push plate 44 will drive the cutting knife 3 to cut the polyester greige fabric below it. During the downward movement of the cutting knife 3, the push-pull plates 49 on both sides of the push plate 44 first press against the polyester greige fabric to be cut. As the push plate 44 moves down, the push-pull plates 49 pull the polyester greige fabric at the cutting position below the cutting knife 3, thereby flattening the wrinkles at the cutting position of the polyester greige fabric until the cutting knife 3 finishes cutting the polyester greige fabric.

[0031] The intermittent push-cut component 4 replaces the traditional "cylinder + cutter" solution. This solution can adjust the cutting length of polyester fabric by controlling the speed of the drive motor 48. This eliminates the need for a programmable controller and the personnel required to operate it, thereby reducing the factory's equipment procurement and labor costs. In addition, the intermittent push-cut component 4 can immediately flatten any potential wrinkles in the polyester fabric, thereby improving the cutting quality of the polyester fabric.

[0032] The roller pressing assembly 5 includes connecting horizontal plates 51 arranged on both sides of the upper end face of the conveyor belt 2. A conveyor wheel 52 is rotatably arranged on the opposite side wall of the two connecting horizontal plates 51. The conveyor wheel 52 presses against the conveyor belt 2. A roller pressing wheel 53 is arranged at one end of the conveyor wheel 52.

[0033] The diameter of the roller 53 is smaller than that of the conveyor roller 52, and the positions of the two connecting horizontal plates 51 correspond to each other.

[0034] In this embodiment, as the conveyor belt 2 runs, the conveyor wheel 52 pressing against the conveyor belt 2 rotates, and the conveyor wheel 52 drives the roller pressing wheel 53 to rotate. When the polyester fabric on the conveyor belt 2 passes through the roller pressing assembly 5, the roller pressing wheel 53 presses against the polyester fabric.

[0035] By setting up the roller pressing component 5, the initial speed of the polyester fabric can be reduced so that the conveying end is lifted up due to excessive speed, which would affect the subsequent cutting of the polyester fabric by the cutting blade 3.

[0036] Working principle: First, the drive motor 48 is started, which drives the drive shaft 42 to rotate. The drive shaft 42 drives multiple sets of cams 43 to rotate. When the protrusion of the cam 43 presses against the push plate 44, the push plate 44 moves down along the limiting groove 46. The sliders 45 at both ends of the push plate 44 squeeze the helical springs 47 inside the limiting groove 46. The downward movement of the push plate 44 drives the cutting blade 3 and the push-pull plate 49 to press down. When the protrusion of the cam 43 is misaligned with the push plate 44, the helical spring 47 quickly restores the push plate 44 to its initial position through its own elastic potential energy. The above steps are repeated. The cutting blade 3 intermittently cuts the polyester fabric, thereby cutting the polyester fabric into batches of the same length. At the same time, the polyester fabric is placed on the conveyor belt 2. The polyester fabric passes through the rollers during conveying. 53. As the conveyor belt 2 runs, the conveyor wheel 52 pressing against the conveyor belt 2 rotates, and the conveyor wheel 52 drives the roller 53 to rotate. When the polyester fabric on the conveyor belt 2 passes through the roller 53, the roller 53 presses on the polyester fabric. The polyester fabric passing through the roller 53 will be conveyed to the bottom of the cutting knife 3. When the cam 43 pushes the push plate 44 down, the downward movement of the push plate 44 drives the cutting knife 3 to cut the polyester fabric below it. During the downward movement of the cutting knife 3, the push-pull plates 49 on both sides of the push plate 44 first press against the polyester fabric to be cut. As the push plate 44 moves down, the push-pull plates 49 pull the polyester fabric at the cutting position below the cutting knife 3, thereby flattening the wrinkles at the cutting position of the polyester fabric until the cutting knife 3 finishes cutting the polyester fabric.

[0037] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0038] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A cutting mechanism for a polyester fabric processing machine, comprising a worktable (1) and a conveyor belt (2) disposed on the upper surface of the worktable (1), wherein a cutting blade (3) is disposed above the conveyor belt (2), characterized in that, An intermittent push-cut assembly (4) is provided above the conveyor belt (2), the cutting blade (3) is connected to the intermittent push-cut assembly (4), and a roller pressing assembly (5) is provided on one side of the intermittent push-cut assembly (4).

2. The polyester fabric processing machine cutting mechanism according to claim 1, characterized in that, The intermittent push-cut assembly (4) includes a U-shaped frame (41), a drive shaft (42), a cam (43), a push plate (44), a slider (45), a limiting groove (46), a helical spring (47), a drive motor (48), a push-pull plate (49), and a return spring (410). The U-shaped frame (41) is located on the upper surface of the worktable (1).

3. The polyester fabric processing machine cutting mechanism according to claim 2, characterized in that, The drive shaft (42) is rotatably connected to the inner side of the U-shaped frame (41). The cam (43) is provided in multiple sets. The multiple sets of cams (43) are provided on the drive shaft (42). Each set of cams (43) is provided with multiple cams. The convex directions of the multiple cams (43) are the same. The convex directions of two adjacent sets of cams (43) are opposite. The push plate (44) is located below the drive shaft (42). The cutting blade (3) is provided on the lower end face of the push plate (44).

4. The polyester fabric processing machine cutting mechanism according to claim 2, characterized in that, The sliders (45) are disposed at both ends of the push plate (44), the limiting grooves (46) are opened on the two inner walls of the U-shaped frame (41), the sliders (45) at both ends of the push plate (44) are respectively slidably connected in the two limiting grooves (46) on the U-shaped frame (41), the helical spring (47) is disposed on the lower inner end face of the limiting groove (46), and one end of the helical spring (47) is connected to the sliders (45) inside the limiting groove (46).

5. The polyester fabric processing machine cutting mechanism according to claim 2, characterized in that, The drive motor (48) is mounted on the U-shaped frame (41). The output end of the drive motor (48) is connected to the drive shaft (42). The push-pull plate (49) is rotatably mounted on both sides of the push plate (44) via the connecting seat. The reset spring (410) is located at the angle between the push plate (44) and the push-pull plate (49), and the two ends of the reset spring (410) are respectively connected to the push plate (44) and the push-pull plate (49).

6. The polyester fabric processing machine cutting mechanism according to claim 1, characterized in that, The roller pressing assembly (5) includes connecting horizontal plates (51) arranged on both sides of the upper end face of the conveyor belt (2). A conveyor wheel (52) is rotatably arranged on one side wall of the two connecting horizontal plates (51). The conveyor wheel (52) presses against the conveyor belt (2). A roller pressing wheel (53) is arranged at one end of the conveyor wheel (52).

7. The polyester fabric processing machine cutting mechanism according to claim 6, characterized in that, The diameter of the roller (53) is smaller than that of the conveyor roller (52), and the positions of the two connecting cross plates (51) correspond to each other.

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