Fixed-length cutting device for woven bag production

Abstract

The utility model relates to the field of woven bag production, in particular to a fixed-length cutting device for woven bag production. According to the fixed-length cutting device for woven bag production, deviation correction can be conducted on woven cloth, inaccurate cutting of the woven cloth is prevented, cutting accuracy is improved, and woven bag production efficiency and quality are improved. A fixed-length cutting device for woven bag production comprises a placing frame, a winding roller, a workbench and the like, the front portion of the placing frame is rotationally connected with the winding roller, and the upper side of the rear portion of the placing frame is connected with the workbench. In the cutting process, when the displacement sensor detects that the woven cloth deviates, a signal is sent out to start the second electric push rod, the second electric push rod drives the connecting frame to move and rotate along the guide rail, the deviation rectifying roller and the rotating frame rotate for deviation rectifying, deviation rectifying can be conducted on the woven cloth, inaccurate cutting of the woven cloth is prevented, and the cutting quality of the woven cloth is improved. The cutting accuracy is improved, and the production efficiency and quality of woven bags are improved.

Description

Technical Field

[0001] The utility model relates to the field of woven bag production, in particular to a fixed-length cutting device for woven bag production. Background Art

[0002] A woven bag, also known as a snake skin bag, is a common packaging material widely used in industries such as fertilizers, chemical products, building materials, food, metallurgy, and medicine. Its main raw materials are usually chemical plastic raw materials such as polyethylene and polypropylene. Fixed-length cutting in woven bag production refers to cutting the woven fabric that has been woven according to certain length requirements in order to make woven bags of the required sizes.

[0003] In the existing cutting of woven bag production, usually the woven fabric is wound around a conveying device, and then a cutting device is installed at the end of the conveying device to cut the woven fabric. During the cutting process, the current equipment does not have the function of rectifying deviation. When the woven fabric deviates, it is easy to cause inaccurate cutting of the woven fabric, thereby affecting the production efficiency and quality of the woven bag and reducing the cutting accuracy.

[0004] Therefore, it is necessary to design a fixed-length cutting device for woven bag production that can rectify the deviation of the woven fabric, prevent inaccurate cutting of the woven fabric, improve the cutting accuracy, and improve the production efficiency and quality of the woven bag. Summary of the Utility Model

[0005] In order to overcome the drawback that the current equipment does not have the function of rectifying deviation, when the woven fabric deviates, it is easy to cause inaccurate cutting of the woven fabric, thereby affecting the production efficiency and quality of the woven bag and reducing the cutting accuracy, the utility model provides a fixed-length cutting device for woven bag production that can rectify the deviation of the woven fabric, prevent inaccurate cutting of the woven fabric, improve the cutting accuracy, and improve the production efficiency and quality of the woven bag.

[0006] A fixed-length cutting device for woven bag production includes a placement rack, a winding roller, a workbench, a first support frame, a conveying roller, a motor, a gear, a second support frame, a first sliding frame, a first clamping plate, a blade, and a screw rod. The front part of the placement rack is rotatably connected with a winding roller. The upper side of the rear part of the placement rack is connected with a workbench. The middle part of the placement rack is connected with two left and right first support frames. The right side of the right first support frame is connected with a motor. Between the first support frames, two upper and lower conveying rollers are rotatably connected. The lower conveying roller is connected with the output shaft of the motor. Gears are connected to the right parts of the conveying rollers, and the two gears are meshed with each other. The upper side of the middle part of the placement rack is connected with a second support frame. The upper part of the second support frame is slidably connected with a first sliding frame. The front sides of the left and right parts of the first sliding frame are rotatably connected with screw rods. A first clamping plate is connected between the screw rods through threads. A blade is clamped between the screw rods, and the blade is located behind the first clamping plate.

[0007] In a preferred embodiment of the present utility model, the blade is made of stainless steel.

[0008] In a preferred embodiment of the present utility model, it further includes a first electric push rod, a rotating frame, a guide rail, a deviation rectifying roller, a connecting frame and a second electric push rod. There are two left and right first electric push rods connected to the upper part of the second support frame. The telescopic ends of the first electric push rods are all connected to the first sliding frame. The front upper left side of the placing frame is rotatably connected to the rotating frame. The right side of the middle part of the placing frame is connected to the guide rail. The right side of the rotating frame is connected to the deviation rectifying roller. The right side of the deviation rectifying roller is connected to the connecting frame. The connecting frame is slidably connected to the guide rail. The front side of the first support frame on the right is rotatably connected to the second electric push rod. The telescopic end of the second electric push rod is rotatably connected to the connecting frame.

[0009] In a preferred embodiment of the present utility model, it further includes a displacement sensor. The left side of the front part of the placing frame is connected with a displacement sensor, and the displacement sensor is used to detect the relative position of the outer side of the material conveyed by the winding roller to the workbench.

[0010] In a preferred embodiment of the present utility model, it further includes a trackless cylinder, a second sliding frame, a third electric push rod and a second clamping plate. Trackless cylinders are connected to the left and right sides of the rear part of the placing frame. A second sliding frame is connected between the sliders of the trackless cylinders, and the second sliding frame is of a frame structure. Third electric push rods are connected to the left and right parts of the second sliding frame. A second clamping plate is connected between the telescopic ends of the third electric push rods. The second clamping plate and the second sliding frame cooperate to clamp the material.

[0011] In a preferred embodiment of the present utility model, the second sliding frame includes support rods, a first cross plate and a second cross plate. The two ends of the first cross plate are respectively connected to one of the sliders through a support rod, and a second cross plate is arranged between the support rods. The first cross plate and the second cross plate are arranged parallel to each other. The third electric push rod is installed on the first cross plate. The second clamping plate is located between the first cross plate and the second cross plate. The second clamping plate and the second cross plate cooperate to clamp the material.

[0012] Beneficial effects: 1. During the cutting process of the present utility model, when the displacement sensor detects that the woven fabric is offset and sends a signal to start the second electric push rod, the second electric push rod drives the connecting frame to move and rotate along the guide rail, so that the deviation rectifying roller and the rotating frame rotate for deviation rectification, thereby being able to rectify the deviation of the woven fabric, prevent inaccurate cutting of the woven fabric, improve the accuracy of cutting, and improve the production efficiency and quality of woven bags.

[0013] 2. The present utility model drives the woven fabric to move by the forward and backward movement of the second sliding frame. After moving to the position of the specified length, the first electric push rod drives the first sliding frame to move downward, and then drives the first clamping plate and the blade to move downward, so that the blade contacts the woven fabric for cutting, thereby being able to perform fixed-length cutting on the woven fabric, facilitating the cutting of woven fabrics of different lengths, and improving the flexibility of using this device.

[0014] 3. By rotating the screw rod with the handle of the present utility model, under the action of the thread, the first clamping plate moves forward to disengage from the blade, and then the blade is removed for replacement. Then, by rotating the screw rod in the reverse direction with the handle, under the action of the thread, the first clamping plate moves backward to contact the blade, thereby fixing the blade. Thus, the blade can be replaced, the operation is simple, the replacement of the blade is convenient, and the convenience of using this device is improved. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 It is a partial three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 3 It is a sectional three-dimensional structural schematic diagram of the cutting mechanism of the present utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the deviation rectifying mechanism of the present utility model.

[0019] The marks of each component in the drawings are as follows: 1 - placement rack, 2 - winding roller, 3 - workbench, 4 - first support frame, 5 - conveying roller, 6 - motor, 7 - gear, 8 - second support frame, 9 - first sliding frame, 10 - first clamping plate, 11 - blade, 12 - screw rod, 13 - first electric push rod, 14 - rotating frame, 15 - guide rail, 16 - deviation rectifying roller, 17 - connecting frame, 18 - second electric push rod, 19 - displacement sensor, 20 - trackless cylinder, 21 - second sliding frame, 22 - third electric push rod, 23 - second clamping plate. Detailed Description of the Embodiment

[0020] The following further describes the present utility model in detail in conjunction with the drawings and the specific embodiments, but does not limit the protection scope and application scope of the present utility model.

[0021] A fixed-length cutting device for woven bag production, as Figures 1-4As shown in the figure, it includes a placement rack 1, a winding roller 2, a workbench 3, a first support frame 4, a conveying roller 5, a motor 6, a gear 7, a second support frame 8, a first sliding frame 9, a first clamping plate 10, a blade 11, a screw 12, a first electric push rod 13, a rotating frame 14, a guide rail 15, a deviation rectifying roller 16, a connecting frame 17, a second electric push rod 18, a displacement sensor 19, a trackless cylinder 20, a second sliding frame 21, a third electric push rod 22 and a second clamping plate 23. A winding roller 2 is rotatably connected to the front part of the placement rack 1. The upper side of the rear part of the placement rack 1 is connected with a workbench 3. Two left and right first support frames 4 are connected to the middle part of the placement rack 1. A motor 6 is connected to the right side of the right first support frame 4. Two upper and lower conveying rollers 5 are rotatably connected between the first support frames 4. The lower conveying roller 5 is connected to the output shaft of the motor 6. Gears 7 are connected to the right parts of the conveying rollers 5. The two gears 7 mesh with each other. A second support frame 8 is connected to the upper side of the middle part of the placement rack 1. A first sliding frame 9 is slidably connected to the upper part of the second support frame 8. Screws 12 are rotatably connected to the front sides of the left and right parts of the first sliding frame 9. A handle is provided on the front side of the screw 12 for facilitating hand rotation of the screw 12. A first clamping plate 10 is connected between the screws 12 through threads. A blade 11 is clamped between the screws 12. The blade 11 is located at the rear side of the first clamping plate 10. The blade 11 is made of stainless steel and has extremely high hardness and wear resistance. Two left and right first electric push rods 13 are connected to the upper part of the second support frame 8. The telescopic ends of the first electric push rods 13 are all connected to the first sliding frame 9. A rotating frame 14 is rotatably connected to the upper left side of the front part of the placement rack 1. A guide rail 15 is connected to the right side of the middle part of the placement rack 1. A deviation rectifying roller 16 is connected to the right side of the rotating frame 14. A connecting frame 17 is connected to the right side of the deviation rectifying roller 16. The connecting frame 17 is slidably connected to the guide rail 15. A second electric push rod 18 is rotatably connected to the front side of the right first support frame 4. The telescopic end of the second electric push rod 18 is rotatably connected to the connecting frame 17. A displacement sensor 19 is connected to the left side of the front part of the placement rack 1. The displacement sensor 19 is used to detect the relative position of the outer side of the material conveyed by the winding roller 2 to the workbench 3. Trackless cylinders 20 are connected to the left and right sides of the rear part of the placement rack 1. A second sliding frame 21 is connected between the sliders of the trackless cylinders 20, and the second sliding frame 21 is a frame structure. The second sliding frame 21 includes support rods, a first cross plate and a second cross plate. The two ends of the first cross plate are respectively connected to one of the sliders through a support rod, and a second cross plate is arranged between the support rods. The first cross plate and the second cross plate are arranged parallel to each other. Third electric push rods 22 are connected to the left and right parts of the second sliding frame 21. The third electric push rods 22 are installed on the first cross plate. A second clamping plate 23 is connected between the telescopic ends of the third electric push rods 22. The second clamping plate 23 is located between the first cross plate and the second cross plate. The second clamping plate 23 and the second cross plate cooperate to clamp the material.

[0022] When the woven bag production requires fixed-length cutting, this device can be used. Bring this device to the place where the woven bag is produced. Then, pass the woven fabric on the winding roller 2 around the front of the placement rack 1, then around the upper side of the deviation rectifying roller 16, then between the conveying rollers 5, under the blade 11, and then around the second sliding rack 21, so that the woven fabric contacts the displacement sensor 19. Then, start the third electric push rod 22, drive the second clamping plate 23 to move and contact the woven fabric through the third electric push rod 22 for pressing. Then, start the motor 6, drive the lower conveying roller 5 to rotate through the motor 6, and then drive the gear 7 to rotate. The gears 7 mesh with each other to make the upper conveying roller 5 rotate, and then convey the woven fabric. During the conveying process, start the trackless cylinder 20, drive the slider to move back and forth through the trackless cylinder 20, and then drive the second sliding rack 21 to move back and forth, so that the third electric push rod 22 and the second clamping plate 23 move back and forth, and then drive the woven fabric to move. After moving to the position of the specified length, turn off the trackless cylinder 20, start the first electric push rod 13, drive the first sliding rack 9 to move downward through the first electric push rod 13, and then drive the first clamping plate 10 and the blade 11 to move downward, so that the blade 11 contacts the woven fabric for cutting, and then realizes the fixed-length cutting of the woven fabric, so as to be able to perform fixed-length cutting on the woven fabric, facilitate the cutting of woven fabrics of different lengths, improve the flexibility of using this device. Then, start the trackless cylinder 20. After the second sliding rack 21 moves back to its original position, start the third electric push rod 22 to drive the second clamping plate 23 to move upward, then wind the woven fabric around the second sliding rack 21, start the third electric push rod 22 to operate in the reverse direction to drive the second clamping plate 23 to move downward for pressing, and then repeat the above steps to continue cutting.

[0023] During the cutting process, when the displacement sensor 19 detects that the side of the woven fabric deviates from the preset trajectory, the signal of the displacement sensor 19 is transmitted to the controller. The controller controls the telescopic movement of the second electric push rod 18, drives the connecting frame 17 to move and rotate along the guide rail 15 through the second electric push rod 18, so that the deviation rectifying roller 16 rotates with the rotating frame 14 for deviation rectification, so as to be able to perform deviation rectification on the woven fabric, prevent inaccurate cutting of the woven fabric, improve the accuracy of cutting, and improve the production efficiency and quality of the woven bag. In this embodiment, the displacement sensor 19 is a photoelectric sensor of the prior art. The first electric push rod 13, the second electric push rod 18, and the third electric push rod 22 are all linear motors of the prior art. And the control method of this embodiment is controlled by a controller. The controller is a PLC or a single-chip microcomputer of the prior art. The control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also common knowledge in this field. And this article is mainly used to protect the mechanical device, and the control method and circuit connection are not explained in detail in this article.

[0024] When the blade 11 is damaged or dull, the screw 12 can be rotated by the handle. Under the action of the thread, the first clamping plate 10 moves forward to disengage from the blade 11, and then the blade 11 can be removed for replacement. Then, the screw 12 is rotated in the reverse direction by the handle. Under the action of the thread, the first clamping plate 10 moves backward to contact the blade 11, thereby fixing the blade 11. Thus, the blade 11 can be replaced, the operation is simple, the replacement of the blade 11 is convenient, and the convenience of using the device is improved. After the cutting is completed, the motor 6 is turned off, and the cut woven fabric can be removed.

[0025] The above are only examples of the present utility model and are not intended to limit the present utility model. Any equivalent replacement made within the principle of the present utility model shall be included within the protection scope of the present utility model. The content not elaborated in detail in the present utility model belongs to the well-known prior art in the technical field of this specialty.

Claims

1. A fixed-length cutting device for woven bag production, characterized in that: The invention comprises a placing frame (1), a winding roller (2), a workbench (3), a first supporting frame (4), a conveying roller (5), a motor (6), a gear (7), a second supporting frame (8), a first sliding frame (9), a first clamping plate (10), a blade (11) and a screw rod (12); the front of the placing frame (1) is rotatably connected to the winding roller (2); the upper rear side of the placing frame (1) is connected to the workbench (3); the middle of the placing frame (1) is connected to two left and right first supporting frames (4); the right side of the right first supporting frame (4) is connected to the motor (6); the first supporting frames (4) are rotatably connected to the upper and lower supporting frames (11); The lower two conveying rollers (5) are connected to the output shaft of the motor (6), the right part of the conveying rollers (5) are connected to gears (7), the two gears (7) are meshed with each other, the middle upper side of the placement frame (1) is connected to a second support frame (8), the upper part of the second support frame (8) is slidably connected to a first sliding frame (9), the front sides of the left and right parts of the first sliding frame (9) are rotatably connected to screw rods (12), the screw rods (12) are connected to a first clamping plate (10) through threads, a blade (11) is clamped between the screw rods (12), and the blade (11) is located at the rear side of the first clamping plate (10).

2. A fixed-length cutting device for woven bag production according to claim 1, characterized in that: The blade (11) is made of stainless steel.

3. A fixed-length cutting device for woven bag production according to claim 1, characterized in that: The invention also comprises a first electric push rod (13), a rotating frame (14), a guide rail (15), a deviation correction roller (16), a connecting frame (17) and a second electric push rod (18). The upper part of the second support frame (8) is connected to two first electric push rods (13) on the left and right sides. The telescopic ends of the first electric push rods (13) are connected to the first sliding frame (9). The upper left side of the front part of the placement frame (1) is rotatably connected to the rotating frame (14). The right side of the middle part of the placement frame (1) is connected to the guide rail (15). The right side of the rotating frame (14) is connected to the deviation correction roller (16). The right side of the deviation correction roller (16) is connected to the connecting frame (17). The connecting frame (17) is slidably connected to the guide rail (15). The front side of the first support frame (4) on the right side is rotatably connected to the second electric push rod (18). The telescopic end of the second electric push rod (18) is rotatably connected to the connecting frame (17).

4. A fixed-length cutting device for woven bag production according to claim 1, characterized in that: It also includes a displacement sensor (19), which is connected to the left side of the front of the placement rack (1), and is used to detect the relative position of the outer side of the material transported by the winding roller (2) to the workbench (3).

5. The fixed-length cutting device for woven bag production according to claim 1 is characterized in that: The invention also comprises a trackless cylinder (20), a second sliding frame (21), a third electric push rod (22) and a second clamping plate (23). The left and right sides of the rear part of the placement frame (1) are connected to the trackless cylinder (20). The second sliding frame (21) is connected between the sliders of the trackless cylinder (20). The second sliding frame (21) is a frame structure. The left and right parts of the second sliding frame (21) are connected to the third electric push rod (22). The second clamping plate (23) is connected between the telescopic ends of the third electric push rod (22). The second clamping plate (23) cooperates with the second sliding frame (21) to clamp the material.

6. A fixed-length cutting device for woven bag production according to claim 5, characterized in that: The second sliding frame (21) comprises a support rod, a first transverse plate and a second transverse plate, both ends of the first transverse plate are connected to a said sliding block through a support rod respectively, and a second transverse plate is arranged between the support rods, the first transverse plate and the second transverse plate are arranged parallel to each other, the third electric push rod (22) is installed on the first transverse plate, the second clamping plate (23) is located between the first transverse plate and the second transverse plate, and the second clamping plate (23) cooperates with the second transverse plate to clamp the material.

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