A cloth strip cutting device

Abstract

The invention discloses a cloth strip cutting device, comprising a shell, the shell comprising an upper cover and a bottom shell, one end of which is hinged to each other; a roller unit is arranged inside the upper cover; a feeding cover plate is arranged on the top of the bottom shell, and a cloth conveying channel is formed between the feeding cover plate and the roller unit; a cloth strip sawing unit and a cloth cutting unit are arranged on the bottom shell in sequence along the cloth conveying direction. The cloth strip cutting device provided by the invention improves the test efficiency and reduces the intensity of manual operation.

Description

Technical Field

[0001] The invention relates to the field of textile sample preparation, in particular to a cloth strip cutting device. Background Art

[0002] The color fastness test of textiles first requires the preparation of samples, that is, different textile samples are prepared into samples of a certain size that meet the test requirements. At present, both domestic and foreign textile laboratories use scissors to cut samples manually. The problems with this method are as follows: 1) The labor intensity is high. For laboratories with large test tasks, this method is very likely to cause fatigue of test personnel; 2) The size of the cut samples cannot be guaranteed to be regular, because the shaking of the hands during manual cutting causes the deviation of the cutting trajectory; 3) The labor efficiency is low. According to calculations, a maximum of 200 samples can be prepared per day using manual cutting, which greatly affects the subsequent test process. 4) The scissors are consumed quickly. According to incomplete statistics, an operator needs to change at least 3 pairs of scissors a year. The scissors are easy to become blunt during use, and blunt scissors in turn affect the cutting speed.

[0003] At present, the equipment for automatic cutting of textiles includes electric scissors, laser cutting and other equipment, but these equipment are not designed for textile color fastness tests, nor are they suitable for the preparation of textile color fastness test samples, because they cannot be quickly cut according to the size required for textile tests. Among them, the laser cutting machine is large in size and is prone to burn the fabric. This is one of the reasons why domestic textile laboratories have always used manual operation. Summary of the invention

[0004] The purpose of the present invention is to provide a cloth strip cutting device to improve test efficiency and reduce the intensity of manual operation.

[0005] To achieve the above-mentioned purpose, the present invention provides a cloth slitting and cutting device, comprising an outer shell, the outer shell comprising an upper cover and a bottom shell hinged to each other at one end; a roller unit is arranged in the upper cover; a feeding cover is arranged on the top of the bottom shell, and a cloth conveying channel is formed between the feeding cover and the roller unit; a cloth slitting saw unit and a cloth sawing unit are arranged in sequence on the bottom shell along the cloth conveying direction.

[0006] As a further improvement of the present invention, the strip saw cloth unit includes a pair of first circular knives arranged in parallel, and the top of the first circular knife protrudes upward from the feeding cover plate; the strip saw cloth unit also includes a first mounting seat and a first motor connected to each other, the first mounting seat is connected to the bottom shell, and the first motor is linked to the first circular knife; the first motor is a brushless motor.

[0007] As a further improvement of the present invention, the cloth sawing unit includes a second circular knife and a second motor that are linked to each other, and the second motor is a brushless motor; the second motor is installed on a second mounting seat; the second mounting seat is connected to a third mounting seat through a first lifting mechanism; and a strip groove that is compatible with the second circular knife is provided on the feeding cover plate.

[0008] As a further improvement of the present invention, the material sawing unit further comprises a horizontal moving mechanism and a horizontal guide rail both mounted on the bottom shell; the third mounting seat is slidably matched with the horizontal guide rail, and the third mounting seat is connected to the horizontal moving mechanism.

[0009] As a further improvement of the present invention, a lifting limit sensor is provided on the second mounting seat; the lifting limit sensor is connected to a controller.

[0010] As a further improvement of the present invention, a front sensor and a rear sensor are provided on the shell; the front sensor is located between the cloth sawing unit and the cloth sawing unit, and the rear sensor is arranged on the rear side of the cloth sawing unit along the cloth conveying direction; the front sensor and the rear sensor are both connected to a controller.

[0011] As a further improvement of the present invention, the roller unit includes a front roller device, a middle roller device, a left material dividing roller device and a right material dividing roller device which are arranged in sequence along the cloth conveying direction; the front roller device and the middle roller device are parallel to each other; the left material dividing roller device and the right material dividing roller device are respectively arranged on the left and right sides of the cloth conveying channel, and the axes of the rollers of the two are at an angle to the axis of the middle roller device.

[0012] As a further improvement of the present invention, a pressing unit is further provided in the upper cover, and the pressing unit corresponds to the cloth sawing unit in upper and lower positions.

[0013] As a further improvement of the present invention, the pressing unit includes a lower pressing block, a second lifting mechanism and a reduction motor with a reduction box, and the lower pressing block is connected to a guide rod; a linear bearing is sleeved on the guide rod, and the linear bearing is connected to the lower pressing block.

[0014] Beneficial Effects

[0015] Compared with the prior art, the advantages of the cloth strip cutting device of the present invention are:

[0016] 1. After one manual feeding, the equipment can automatically complete the operations of stripping, sawing and discharging. This equipment can improve the test efficiency and reduce the intensity of manual operation, which is of great significance. At the same time, it also eliminates the problem of many human intervention factors in textile testing.

[0017] 2. The device is small and can be placed on the inspector's desk to replace scissors for manual operation. It can be used as an office supply for inspectors and can be moved at will according to needs. It is more convenient for cutting samples. The upper cover and bottom shell of the shell can be folded or unfolded, which is convenient for maintenance and manual feeding. It can be used by plugging in electricity, without compressed air or other energy sources. The power is only about 25W, which is energy-saving and environmentally friendly.

[0018] 3. In the fabric sawing unit, the second circular knife is lifted and lowered by the first lifting mechanism to cut the fabric, and will not hinder the fabric from moving forward after it is lowered. The horizontal moving mechanism can make the second circular knife move horizontally, so that even if the diameter of the second circular knife is small, a larger cutting range can be achieved, which is conducive to the miniaturization of the second circular knife.

[0019] 4. The front roller device is mainly used for conveying the cloth when it is cut into strips, the middle roller device is mainly used for conveying the cloth when it is sawed, and the left and right material dividing roller devices are used to convey the scraps on both sides of the cut cloth except the sample cloth to both sides, away from the sample cloth, so as to facilitate personnel to distinguish between the sample cloth and the scraps.

[0020] 5. During the process of sawing the fabric, the pressing unit can prevent the fabric from shifting and ensure the flatness of the cut after sawing.

[0021] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A three-dimensional diagram of the fabric strip cutting device after folding;

[0024] Figure 2 This is a three-dimensional diagram of the fabric slitting and cutting device after it is unfolded;

[0025] Figure 3 A three-dimensional view of the cloth slitting and cutting device with the feed cover removed;

[0026] Figure 4 It is a cross-sectional view of a cloth strip cutting device;

[0027] Figure 5 A three-dimensional diagram of a slitting saw cloth unit;

[0028] Figure 6is a three-dimensional diagram of a cloth sawing unit;

[0029] Figure 7 It is a three-dimensional diagram of the internal structure of the bottom shell;

[0030] Figure 8 is a three-dimensional diagram of a drum unit;

[0031] Fig. 9 A three-dimensional diagram of a pressing unit. DETAILED DESCRIPTION

[0032] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0033] Example

[0034] The specific embodiments of the present invention are as follows Figures 1 to 9 As shown, a cloth strip cutting device comprises a housing 1, wherein the housing 1 comprises an upper cover 11 and a bottom housing 12, both of which are hinged to each other at one end. A roller unit 6 is arranged in the upper cover 11. A feeding cover plate 13 is arranged on the top of the bottom housing 12. After the upper cover 11 and the bottom housing 12 are folded, the gap between the feeding cover plate 13 and the roller unit 6 is arranged to form a cloth conveying channel, and the front end and the rear end of the cloth conveying channel are both connected to the outside of the housing 1, so as to facilitate the feeding and discharging of the cloth. A cloth strip sawing unit 2 and a cloth cutting unit 3 are arranged on the bottom housing 12 in sequence along the cloth conveying direction.

[0035] The cloth slitting saw unit 2 includes a pair of first circular knives 21 arranged in parallel, which are used to cut out the left and right edges of the cloth sample. The top of the first circular knife 21 protrudes upward from the feeding cover 13. The cloth slitting saw unit 2 also includes a first mounting seat 25 and a first motor 24 connected to each other, the first mounting seat 25 is connected to the bottom shell 12, and the first motor 24 is linked to the first circular knife 21. The first motor 24 is a brushless motor. The first mounting seat 25 and the first motor 24 are located below the feeding cover 13. Among them, the first motor 24 is linked to the first circular knife 21 through a first transmission mechanism 23, and the first transmission mechanism 23 specifically adopts a first gear box. The input end of the first gear box is connected to the first motor 24, and the output end of the first gear box is connected to the middle part of the first circular knife 21 through the first circular knife link block 22.

[0036] The cloth sawing unit 3 includes a second circular knife 34 and a second motor 37 which are linked to each other. The second motor 37 is a brushless motor, wherein the second motor 37 is linked to the second circular knife 34 through a second transmission mechanism 36, and the second transmission mechanism 36 is specifically a second gear box. The input end of the second gear box is connected to the second motor 37, and the output end of the second gear box is connected to the middle part of the second circular knife 34 through a second circular knife link block 35. Both the first circular knife 21 and the second circular knife 34 are made of tungsten steel.

[0037] The second motor 37 is mounted on the second mounting seat 38. The second mounting seat 38 is connected to the third mounting seat 39 through the first lifting mechanism 32. The feed cover plate 13 is provided with a strip groove 131 adapted to the second circular knife 34. When the cloth needs to be sawed, the upper part of the second circular knife 34 is made to pass through the strip groove 131 of the feed cover plate 13 and cut the cloth through the first lifting mechanism 32. The first lifting mechanism 32 can adopt a linear motor.

[0038] The cloth sawing unit 3 also includes a horizontal moving mechanism 31 and a horizontal guide rail 33, both of which are mounted on the bottom shell 12. The third mounting seat 39 is slidably matched with the horizontal guide rail 33, and the third mounting seat 39 is connected to the horizontal moving mechanism 31. The translation direction of the second circular knife 34 is perpendicular to the conveying direction of the cloth. The horizontal moving mechanism 31 can adopt a linear motor.

[0039] A lifting limit sensor is provided on the second mounting seat 38. The lifting limit sensor is connected to a controller, and the controller is electrically connected to the first lifting mechanism 32. The lifting limit sensor includes a left limit sensor 43 and a right limit sensor 44. The controller detects the height of the second circular knife 34 in real time through the lifting limit sensor to prevent the second circular knife 34 from being lifted too high.

[0040] The housing 1 is provided with a front sensor 41 and a rear sensor 42. The front sensor 41 is located between the cloth sawing unit 2 and the cloth cutting unit 3, and the rear sensor 42 is arranged at the rear side of the cloth cutting unit 3 along the cloth conveying direction. The front sensor 41 and the rear sensor 42 are both connected to a controller. The front sensor 41 is arranged on the feeding cover plate 13, and the rear sensor 42 is installed on the upper cover 11 through a sensor mounting frame 45.

[0041] The roller unit 6 includes a front roller device 61, a middle roller device 62, a left material dividing roller device 64 and a right material dividing roller device 65 arranged in sequence along the cloth conveying direction, and the rollers of the four rollers are all linked with a stepping motor. Among them, the number of the front roller devices 61 is two arranged in parallel front and back, and they are located above the cloth sawing unit 2; the number of the middle roller devices 62 is two arranged in parallel front and back, and they are located above the cloth sawing unit 3. The front roller device 61 and the middle roller device 62 are parallel. The left material dividing roller device 64 and the right material dividing roller device 65 are respectively arranged on the left and right sides of the cloth conveying channel, and the axis of the rollers of the two are at an angle with the axis of the middle roller device 62. When working, the scraps cut off the left and right sides of the cloth are respectively conveyed by the left material dividing roller device 64 and the right material dividing roller device 65 in the direction away from the middle cloth sample.

[0042] A pressing unit 5 is also provided in the upper cover 11, and the pressing unit 5 corresponds to the cloth sawing unit 3 up and down. In this embodiment, the pressing unit 5 includes a lower pressing block 54, a second lifting mechanism 51 and a reduction motor 55 with a reduction gearbox, and the lower pressing block 54 is connected to a guide rod 53. A linear bearing is sleeved on the guide rod 53, and the linear bearing is connected to the lower pressing block 54. The second lifting mechanism 51 and the reduction motor 55 with a reduction gearbox are started to the specified position according to the pulse signal, and the lower pressing block 54 presses the cloth downward. The strip groove in the middle of the lower pressing block 54 serves to increase the friction and avoid the second circular knife 34. The lower pressing block 54 is located directly above the second circular knife 34. The second lifting mechanism 51 is a single-axis manipulator, and the second lifting mechanism 51 and the reduction motor 55 with a reduction gearbox are installed on the upper cover 11.

[0043] The action process of the cloth strip cutting device is as follows:

[0044] 1. Manually put the fabric to be cut into the instrument feed port, which is the front end of the fabric conveying channel, and start the instrument.

[0045] 2. The front roller device 61 in the roller unit 6 operates according to the parameters set in the program to feed the fabric into the instrument.

[0046] 3. The front roller device 61 sends the cloth to the left and right cloth-cutting sawing units 2 and triggers the front sensor 41. The brushless motor in the cloth-cutting sawing unit 2 realizes variable frequency rotation according to the parameters set in the program, cuts the cloth into strips, and continues to transport the cloth forward.

[0047] 4. The front roller device 61 and the middle roller device 62 in the roller unit 6 act synchronously under the program setting to send the cut cloth to the cutting station inside the instrument to prepare for cutting. During this period, the front roller device 61 and the middle roller device 62 complete the feeding and tensioning of the cloth.

[0048] 5. After the roller unit 6 completes the stage setting action, it triggers the pressing unit 5 and the cloth sawing unit 3 to perform the cutting action. First, the second lifting mechanism 51 in the pressing unit 5 is triggered to drive the pressing block 54 to press the cloth to be cut.

[0049] 6. After the pressing unit 5 presses the fabric, the single chip microcomputer triggers the fabric sawing unit 3 to operate. The fabric sawing unit 3 operates as follows: First, the "brushless motor" in the fabric sawing unit 3 rotates according to the parameters set in the program, and then the horizontal moving mechanism 31 and the first lifting mechanism 32 perform horizontal and vertical linear motions synchronously. The distance and speed of the vertical and horizontal linear motions are set according to the program. The second circular knife 34 is driven by the horizontal moving mechanism 31 and the first lifting mechanism 32 to cut the fabric. After the action is completed, the first lifting mechanism 32 drives the second circular knife 34 to descend, hides the second circular knife 34 back to the bottom of the instrument, and the second lifting mechanism 51 drives the lower pressing block 54 to rise back to the initial state, and triggers the rear sensor 42 and the roller unit 6 to discharge the material.

[0050] 7. The middle roller device 62, the left material dividing roller device 64 and the right material dividing roller device 65 at the rear side of the roller unit 6 work in coordination under program control to remove the cut fabric samples from the middle of the instrument and remove other fabric scraps from both sides.

[0051] 8. The instrument repeats the above process according to the program to achieve continuous and efficient automatic cutting of samples.

[0052] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A cloth strip cutting device, characterized in that: The invention comprises a shell (1), wherein the shell (1) comprises an upper cover (11) and a bottom shell (12) which are hinged to each other at one end; a roller unit (6) is arranged in the upper cover (11); a feeding cover plate (13) is arranged on the top of the bottom shell (12), and a cloth conveying channel is formed between the feeding cover plate (13) and the roller unit (6); a cloth sawing unit (2) and a cloth cutting unit (3) are arranged in sequence on the bottom shell (12) along the cloth conveying direction; the cloth sawing unit (2) comprises a pair of first circular knives (21) arranged in parallel, and the top of the first circular knives (21) protrudes upward from the feeding cover plate (13); the cloth sawing unit (2) further comprises a first mounting seat (25) and a first motor (24) which are connected to each other, the first mounting seat (25) being connected to the bottom shell (12), and the first motor (24) being linked to the first circular knife (21); the first motor (24) is a brushless motor. machine; a front sensor (41) and a rear sensor (42) are provided on the housing (1); the front sensor (41) is located between the cloth sawing unit (2) and the cloth sawing unit (3), and the rear sensor (42) is arranged at the rear side of the cloth sawing unit (3) along the cloth conveying direction; the front sensor (41) and the rear sensor (42) are both connected to a controller; the roller unit (6) comprises a front roller device (61), a middle roller device (62), a left material dividing roller device (64) and a right material dividing roller device (65) which are arranged in sequence along the cloth conveying direction; the front roller device (61) and the middle roller device (62) are parallel to each other; the left material dividing roller device (64) and the right material dividing roller device (65) are respectively arranged on the left and right sides of the cloth conveying channel, and the axes of the rollers of the two rollers are at an angle to the axis of the middle roller device (62).

2. A cloth strip cutting device according to claim 1, characterized in that: The cloth sawing unit (3) comprises a second circular knife (34) and a second motor (37) which are linked to each other, and the second motor (37) is a brushless motor; the second motor (37) is mounted on a second mounting seat (38); the second mounting seat (38) is connected to a third mounting seat (39) via a first lifting mechanism (32); and a strip groove (131) which is adapted to the second circular knife (34) is provided on the feeding cover plate (13).

3. A cloth strip cutting device according to claim 2, characterized in that: The cloth sawing unit (3) further comprises a horizontal moving mechanism (31) and a horizontal guide rail (33) both mounted on the bottom shell (12); the third mounting seat (39) is slidably matched with the horizontal guide rail (33), and the third mounting seat (39) is connected to the horizontal moving mechanism (31).

4. A cloth strip cutting device according to claim 2 or 3, characterized in that: The second mounting seat (38) is provided with a lifting limit sensor; the lifting limit sensor is connected to a controller.

5. The cloth strip cutting device according to claim 1, characterized in that: A pressing unit (5) is also provided in the upper cover (11), and the pressing unit (5) corresponds to the cloth sawing unit (3) in upper and lower positions.

6. A cloth strip cutting device according to claim 5, characterized in that: The pressing unit (5) comprises a lower pressing block (54), a second lifting mechanism (51) and a reduction motor (55) with a reduction gearbox; the lower pressing block (54) is connected to a guide rod (53); a linear bearing is sleeved on the guide rod (53); and the linear bearing (52) is connected to the lower pressing block (54).

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