Knit fabric cutting machine

Abstract

The utility model relates to a kind of knitted fabric cutting machine, comprising: base and the cutting mechanism being set on base, driven lifting connection is had on base lifting seat, both ends of lifting seat are swing connected with swing rod, opposite transverse sliding connection is had on base connecting rod one, connecting rod one is vertically direction sliding connection with clamping block one, swing rod is connected with clamping block one rotationally, connecting rod one is fixedly connected with clamping block two, clamping block one and clamping block two are oppositely set, can stretch and smooth to fabric, and then increase the accuracy of fabric when cutting.

Description

Technical Field

[0001] This utility model relates to the technical field of knitted fabric cutting equipment, and in particular to a knitted fabric cutting machine. Background Technology

[0002] The knitted fabric cutting equipment is a specialized cutting device for processing undyed raw knitted fabrics, primarily serving the fabric cutting process in the garment manufacturing and home textile industries. The core structure of this equipment consists of three parts: a take-up roller, a heating wire cutting unit, and a lifting mechanism. Its working principle is as follows: the take-up roller continuously pulls the fabric for winding; when cutting is required, the lifting mechanism drives the heating wire unit to descend vertically and contact the fabric surface, achieving cutting through high-temperature melting.

[0003] The existing technology has two main mechanical defects: First, because the knitted fabric itself has elastic deformation characteristics, it is prone to irregular wrinkles during the conveying process. These wrinkles will cause the contact surface between the heating wire and the fabric to shift, which will cause the cutting trajectory to deviate from the predetermined path. Second, when the fabric is not subjected to appropriate tension, its fiber structure will shrink or slip during the thermal cutting process. This dynamic deformation will significantly reduce the accuracy of the cutting position. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a knitted fabric cutting machine that can stretch and smooth the fabric, thereby increasing the accuracy of cutting the fabric.

[0005] To achieve the above objectives, this utility model proposes a knitted fabric cutting machine, comprising: a base and a cutting mechanism disposed on the base.

[0006] The base is connected to a lifting seat that is driven to move up and down, and both ends of the lifting seat are connected to swing rods.

[0007] A connecting rod is slidably connected to the base in a relatively horizontal direction, and a clamping block is slidably connected to the connecting rod in a vertical direction. The swing rod is rotatably connected to the clamping block.

[0008] A clamping block 2 is fixedly connected to the connecting rod 1, and the clamping block 1 and the clamping block 2 are arranged opposite to each other.

[0009] Preferably, the cutting mechanism includes a fixed seat that is elastically slidably connected to the base in a vertical direction and a heating wire that is fixedly connected to the fixed seat. The heating wire is located on the bottom surface of the fabric. The base is provided with a driving member that is connected to the fixed seat at one end, and the driving member can drive the fixed seat to rise and fall.

[0010] Preferably, the driving component includes an eccentric wheel rotatably connected to the base and a motor fixedly connected to the base, the output shaft of which is fixedly connected to the eccentric wheel.

[0011] Preferably, a limiting block is fixedly connected to the top surface of the connecting rod, and the limiting block can be in contact with the clamping block.

[0012] Preferably, a conveying roller is rotatably connected to the base, a take-up roller is rotatably connected to the end of the base away from the conveying roller, and a second motor is fixedly connected to the base, with the output shaft of the second motor fixedly connected to the take-up roller.

[0013] Preferably, a plurality of fixing spikes are fixedly connected to the first clamping block, and a fixing groove is provided on the second clamping block for the fixing spikes to enter.

[0014] Preferably, a motor is fixedly connected to the base, the output shaft of the motor is fixedly connected to an eccentric wheel, and a ball is fixedly connected to the eccentric wheel, the ball being in contact with the bottom surface of the fixed base.

[0015] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model, by using an eccentric wheel to drive the vertical movement of the fixed seat and combining it with a ball contact design, not only achieves control over the up and down stroke of the heating wire but also significantly reduces motion friction loss. The clamping system uses a cylinder to drive the lifting seat, which in turn moves the swing rod. When the connecting rod one moves laterally, the clamping block one and the fixed clamping block two form opposing clamping. The interlocking structure of the fixing spike and the fixing groove enhances clamping stability, while the spring-return connecting rod design ensures a uniform distribution of clamping force.

[0016] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the position of the fixing base of this utility model.

[0019] In the diagram: 1. Base; 2. Cutting mechanism; 3. Lifting seat; 4. Swing rod; 5. Connecting rod one; 6. Clamping block one; 7. Clamping block two; 8. Fixed seat; 9. Heating wire; 10. Driving component; 11. Eccentric wheel; 12. Motor one; 13. Limiting block; 14. Conveying roller; 15. Rewinding roller; 16. Motor two; 17. Fixing spike; 18. Fixing groove; 20. Ball bearing. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] 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 application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] like Figures 1 to 2 A knitted fabric cutting machine includes: a base 1 and a cutting mechanism 2 disposed on the base 1. The cutting mechanism 2 is used to cut the fabric. The cutting mechanism 2 mainly consists of a fixed seat 8 that is vertically and elastically slidably connected to the base 1 and a heating wire 9 fixedly connected to the fixed seat 8. The heating wire 9 is located on the bottom surface of the fabric. A driving member 10 is disposed on the base 1, one end of which is connected to the fixed seat 8. The driving member 10 can drive the fixed seat 8 to rise and fall. The driving member 10 includes an eccentric wheel 11 rotatably connected to the base 1 and a motor 12 fixedly connected to the base 1. The output shaft of the motor 12 is fixedly connected to the eccentric wheel 11. Therefore, the motor 12 can drive the eccentric wheel 11 to rotate. Once the eccentric wheel 11 rotates, the eccentric wheel 11 will drive the fixed seat 8 to rise and fall, so that the fixed seat 8 drives the heating wire 9 to rise and fall during the rising and falling process. Once the heating wire 9 rises and falls, the heating wire 9 is activated, and the fabric is cut by the heating wire 9, thereby realizing the cutting of the fabric.

[0025] When the fabric needs to be clamped and fixed, a lifting seat 3 is connected to the base 1 and driven to move up and down. Both ends of the lifting seat 3 are connected to swing rods 4. A connecting rod 5 is elastically slidably connected to the base 1 in a horizontal direction. A clamping block 6 is vertically slidably connected to the connecting rod 5. The swing rods 4 and clamping block 6 are rotatably connected. A clamping block 7 is fixedly connected to the connecting rod 5. Clamping blocks 6 and 7 are positioned opposite each other. Therefore, the lifting seat 3, driven by a cylinder, moves up and down. This cylinder is fixedly connected to the base 1, and its output shaft is fixedly connected to the lifting seat 3. Thus, the cylinder drives the lifting seat 3 to move up and down, causing the lifting... The lowering seat 3 drives the connecting rod 5 to move the clamping block 6, so that the clamping block 6 and the clamping block 7 hold the fabric, thereby fixing the fabric. It is worth mentioning that the connecting rod 5 limits the clamping block 6, so that the clamping block 6 always remains in a vertical state, so as to clamp and stretch the fabric. Once the fabric is clamped and stretched, the cutting mechanism 2 cuts the fabric. It is also worth mentioning that the connecting rod is elastically slidably connected to the base 1 by a spring. The spring is fixedly connected to the base 1, and one end is fixedly connected to the connecting rod 5, so that the connecting rod 5 can be reset.

[0026] Specifically, a limiting block 13 is fixedly connected to the top surface of the connecting rod 5. The limiting block 13 can be attached to the clamping block 6. By attaching the limiting block 13 to the clamping block 6, the clamping block 6 can be prevented from moving outside the connecting rod.

[0027] Specifically, a conveying roller 14 is rotatably connected to the base 1, and a take-up roller 15 is rotatably connected to the end of the base 1 away from the conveying roller 14. A second motor 16 is fixedly connected to the base 1, and the output shaft of the second motor 16 is fixedly connected to the take-up roller 15. The take-up roller 15 is driven to rotate by the second motor 16, thereby realizing that the take-up roller 15 can take up the cut fabric.

[0028] Specifically, a number of fixing spikes 17 are fixedly connected to the clamping block 6, and a fixing groove 18 is opened on the clamping block 7 for the fixing spikes 17 to enter. By using the fixing spikes 17 to enter the fixing groove 18, the fabric can be fixed, thereby further improving the fixing effect of the fabric.

[0029] Specifically, a ball bearing 20 is fixedly connected to the eccentric wheel 11. The ball bearing 20 is in contact with the bottom surface of the fixed seat 8. The ball bearing 20 is used to reduce the friction between the eccentric wheel 11 and the fixed seat 8.

[0030] The working principle of this utility model is as follows: The base 1 serves as the core support structure, and the cutting mechanism 2 mounted on it cuts the fabric through the heating wire 9. Motor 12 drives the eccentric wheel 11 to rotate, and the eccentric wheel 11 contacts the bottom of the fixed seat 8, converting the rotational motion into the vertical reciprocating motion of the fixed seat 8. When the fixed seat 8 drives the heating wire 9 to rise and fall, the heating wire 9 is energized and heats up, contacting the fabric during the rise and melting the fiber layer, thus completing the non-contact cutting. The fabric fixing system is controlled by a cylinder-driven lifting seat 3. The lifting seat 3 pushes the connecting rod 5 laterally through the swing rod 4, and the connecting rod 5 drives the clamping block 6 to form an opposing clamping position with the fixedly connected clamping block 7. The fixing spikes 17 of the clamping block 6 are embedded in the fixing grooves 18 of the clamping block 7, and with the spring-returned connecting rod 5, the clamping process is stable and the fabric can be stretched. The conveying roller 14 and the take-up roller 15 constitute a material conveying system. The motor 16 drives the take-up roller 15 to rotate and automatically take up the cut fabric. The limiting block 13 prevents the clamping block 6 from disengaging from the connecting rod 5.

[0031] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A knitted fabric cutting machine, comprising: The base (1) and the cutting mechanism (2) disposed on the base (1) are characterized in that, The base (1) is connected to a lifting seat (3) which is driven to move up and down. Both ends of the lifting seat (3) are connected to swing rods (4). A connecting rod (5) is slidably connected to the base (1) in a relatively horizontal direction. A clamping block (6) is slidably connected to the connecting rod (5) in a vertical direction. The swing rod is rotatably connected to the clamping block (6). A clamping block 2 (7) is fixedly connected to the connecting rod 1 (5), and the clamping block 1 (6) and the clamping block 2 (7) are arranged opposite to each other.

2. The knitted fabric cutting machine according to claim 1, characterized in that, The cutting mechanism (2) includes a fixed seat (8) that is elastically slidably connected to the base (1) in a vertical direction and a heating wire (9) that is fixedly connected to the fixed seat (8). The heating wire (9) is located on the bottom surface of the fabric. A driving member (10) is provided on the base (1) with one end connected to the fixed seat (8). The driving member (10) can drive the fixed seat (8) to rise and fall.

3. The knitted fabric cutting machine according to claim 2, characterized in that, The drive unit (10) includes an eccentric wheel (11) rotatably connected to the base (1) and a motor (12) fixedly connected to the base (1), the output shaft of which is fixedly connected to the eccentric wheel (11).

4. A knitted fabric cutting machine according to claim 1, characterized in that, The top surface of the connecting rod (5) is fixedly connected to a limiting block (13), which can be attached to the clamping block (6).

5. A knitted fabric cutting machine according to claim 4, characterized in that, A conveying roller (14) is rotatably connected to the base (1), and a take-up roller (15) is rotatably connected to one end of the base (1) away from the conveying roller (14). A second motor (16) is fixedly connected to the base (1), and the output shaft of the second motor (16) is fixedly connected to the take-up roller (15).

6. A knitted fabric cutting machine according to claim 1, characterized in that, The clamping block one (6) is fixedly connected with a plurality of fixing spikes (17), and the clamping block two (7) is provided with fixing grooves (18) for the fixing spikes (17) to enter.

7. A knitted fabric cutting machine according to claim 3, characterized in that, A ball bearing (20) is fixedly connected to the eccentric wheel (11), and the ball bearing (20) is in contact with the bottom surface of the fixed seat (8).

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