Fixed-length cutting device for braid

Abstract

The utility model relates to the technical field of braid processing, and discloses a braid fixed-length cutting device which comprises a rack, one end of the inner side of the rack is rotationally connected with a feeding roller used for conveying a braid, the other end of the inner side of the rack is provided with a guide roller piece used for guiding the braid, and the middle of the top face of the rack is fixedly connected with a fixing frame. The top of the fixing frame is slidably connected with a movable rod penetrating through the fixing frame, the bottom end of the movable rod is fixedly connected with a cutter, the inner side of the rack is fixedly connected with a supporting table in sliding fit with the cutter, and the outer side of the rack is provided with a driving mechanism used for driving the feeding roller to rotate intermittently and driving the movable rod to move up and down in a reciprocating mode. Automatic fixed-length cutting can be achieved without numerical control elements in the whole cutting process, the use cost of equipment is greatly reduced, and the cutting precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of webbing processing, and more specifically to a webbing fixed-length cutting device. Background Art

[0002] Ribbon is a narrow or tubular fabric supported by various yarns. It is widely used in clothing, shoes, bags, etc. With the development of society, the raw materials of ribbons have gradually developed into nylon, vinylon and polyester. Ribbons are usually made into long strips. Later, the ribbons need to be cut to the required length. Therefore, the ribbon cutting device is an important tool needed for cutting the ribbons.

[0003] After searching, the Chinese patent publication number CN210657718U discloses "a cutting device for ribbon production, including a base, the right end of the base is internally rotatably connected to a roller, the front and rear sides of the base are fixedly connected to a mixing frame by bolts, the outer side of the movable rod is sleeved with a spring, the inner side of the connecting frame is rotatably connected to a pressure column, the upper surface of the left end of the base is fixedly connected to a box, the output end of the electric telescopic rod is fixedly connected to a heating device, and the lower end of the heating device is provided with a blade, the left end of the base is internally rotatably connected to a threaded rod, and the front end of the threaded rod is fixedly connected to a handle, the front and rear ends of the threaded rod are both connected to the lower end of the movable block, and the upper end of the movable block is fixedly connected to a limiting plate."

[0004] The above patent operates the cutting device and conveying mechanism of the ribbon independently, and requires CNC components or manual coordination. The manufacturing and operating costs of CNC components are high, and manual coordination will result in inconsistent cutting lengths each time, thereby reducing the cutting quality of the ribbon. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a webbing fixed-length cutting device, which has the advantages of low operating cost and high cutting accuracy.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixed-length cutting device for a webbing, comprising a frame, one end of the inner side of the frame is rotatably connected to a feed roller for conveying the webbing, the other end of the inner side of the frame is provided with a guide roller for guiding the webbing, a fixed frame is fixedly connected to the middle of the top surface of the frame, a movable rod that penetrates the fixed frame is slidably connected to the top of the fixed frame, a cutter is fixedly connected to the bottom end of the movable rod, a support platform that slidably cooperates with the cutter is fixedly connected to the inner side of the frame, and a driving mechanism for driving the feed roller to rotate intermittently and the movable rod to reciprocate up and down is provided on the outer side of the frame.

[0007] As a preferred technical solution of the utility model, a knife groove matching the cutting knife is provided on the top surface of the support platform, and the cutting knife is slidably matched with the knife groove.

[0008] As a preferred technical solution of the utility model, the guide roller assembly includes a first guide roller and a second guide roller, the first guide roller and the second guide roller are both rotatably connected to one end of the inner side of the frame, and the first guide roller and the second guide roller are arranged in parallel, the bottom end of the first guide roller is in contact with the top surface of the webbing, and the top end of the second guide roller is in contact with the bottom surface of the webbing.

[0009] As a preferred technical solution of the utility model, the driving mechanism includes a bracket, which is fixedly connected to the outside of the frame, a motor is fixedly installed on the top of the bracket, an incomplete gear is fixedly connected to the middle of the motor output shaft, one end of the feed roller is coaxially fixedly connected to the transmission gear, and the incomplete gear is intermittently meshed with the transmission gear.

[0010] As a preferred technical solution of the utility model, the gear ratio between the incomplete gear and the transmission gear corresponds to the required cutting length of the ribbon.

[0011] As a preferred technical solution of the utility model, the driving mechanism also includes an eccentric wheel, which is fixedly connected to one end of the motor output shaft. The outer edge of the eccentric wheel is rotatably connected to a connecting rod through a pin shaft. The end of the connecting rod away from the eccentric wheel is hinged with a push-pull rod. The push-pull rod is arranged parallel to the movable rod. The top end of the push-pull rod is fixedly connected to a connecting plate. The end of the connecting plate away from the push-pull rod is fixedly connected to the top of the movable rod.

[0012] As a preferred technical solution of the utility model, a cleaning mechanism is provided on the inner side of the frame, and the cleaning mechanism includes a fixed plate, which is fixedly connected to the inner side of the frame, a sliding rod penetrating the fixed plate is slidably connected to the middle part of the fixed plate, one end of the sliding rod is fixedly connected to a scraper, and the other end of the sliding rod is fixedly connected to a limiting block.

[0013] As a preferred technical solution of the utility model, the cleaning mechanism also includes a spring, and the spring is sleeved on the slide rod. One end of the spring abuts against the fixed plate, and the other end of the spring abuts against the scraper.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The cutter can intermittently cut the ribbon to a fixed length. The entire process can achieve automatic fixed-length cutting without the need for CNC components, which greatly reduces the cost of equipment use and improves cutting accuracy;

[0016] 2. When the cutter moves up and down with the movable rod, the cutter will slide relative to the scraper. At the same time, the spring can make the scraper fit closely with the cutter, so that the scraper can clean up the ribbon debris attached to the cutter, effectively avoiding the problem that the ribbon debris on the cutter affects the next cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a webbing fixed-length cutting device of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the guide roller member of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the driving mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the cleaning mechanism of the utility model.

[0022] In the figure: frame 1, feed roller 2, guide roller member 3, first guide roller 31, second guide roller 32, fixed frame 4, movable rod 5, cutter 6, support table 7, knife groove 71, drive mechanism 8, bracket 81, motor 82, incomplete gear 83, transmission gear 84, eccentric wheel 85, connecting rod 86, push-pull rod 87, connecting plate 88, cleaning mechanism 9, fixed plate 91, slide rod 92, scraper 93, limit block 94, spring 95. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5As shown, the utility model provides a fixed-length cutting device for a webbing, comprising a frame 1, one end of the inner side of the frame 1 is rotatably connected to a feed roller 2 for conveying the webbing, the other end of the inner side of the frame 1 is provided with a guide roller 3 for guiding the webbing, a fixed frame 4 is fixedly connected to the middle of the top surface of the frame 1, a movable rod 5 penetrating the fixed frame 4 is slidably connected to the top of the fixed frame 4, a cutter 6 is fixedly connected to the bottom end of the movable rod 5, a support platform 7 slidably matched with the cutter 6 is fixedly connected to the inner side of the frame 1, a knife groove 71 matching with the cutter 6 is provided on the top surface of the support platform 7, the cutter 6 is slidably matched with the knife groove 71, and a driving mechanism 8 for driving the feed roller 2 to rotate intermittently and the movable rod 5 to reciprocate up and down is provided on the outer side of the frame 1.

[0025] The guide roller member 3 includes a first guide roller 31 and a second guide roller 32, both of which are rotatably connected to one end of the inner side of the frame 1, and the first guide roller 31 and the second guide roller 32 are arranged in parallel, the bottom end of the first guide roller 31 contacts the top surface of the ribbon, and the top end of the second guide roller 32 contacts the bottom surface of the ribbon. The ribbon can be clamped by the first guide roller 31 and the second guide roller 32, so that the ribbon can be kept taut during the conveying and cutting process, so as to avoid the problem of reduced cutting accuracy due to loose ribbon.

[0026] Among them, the driving mechanism 8 includes a bracket 81, which is fixedly connected to the outer side of the frame 1, and a motor 82 is fixedly installed on the top of the bracket 81. An incomplete gear 83 is fixedly connected to the middle part of the output shaft of the motor 82, and one end of the feed roller 2 is coaxially fixedly connected to a transmission gear 84. The incomplete gear 83 is intermittently meshed with the transmission gear 84. The gear ratio of the incomplete gear 83 and the transmission gear 84 corresponds to the required truncation length of the webbing, and an eccentric wheel 85 is fixedly connected to one end of the output shaft of the motor 82. The outer edge of the eccentric wheel 85 is rotatably connected to a connecting rod 86 through a pin shaft, and a push-pull rod 87 is hinged at one end of the connecting rod 86 away from the eccentric wheel 85. The push-pull rod 87 is arranged parallel to the movable rod 5, and a connecting plate 88 is fixedly connected to the top of the push-pull rod 87. The end of the connecting plate 88 away from the push-pull rod 87 is fixedly connected to the top of the movable rod 5.

[0027] By starting the motor 82, the incomplete gear 83 and the eccentric wheel 85 can be rotated, and the eccentric wheel 85 can make the connecting rod 86 drive the push-pull rod 87 to reciprocate up and down, so that the connecting plate 88 drives the movable rod 5 to reciprocate up and down. When the movable rod 5 slides upward, the incomplete gear 83 is meshed with the transmission gear 84, which makes the feed roller 2 convey the ribbon to a certain length; when the movable rod 5 slides downward, the incomplete gear 83 is disengaged from the transmission gear 84, and the feed roller 2 stops conveying the ribbon, and the movable rod 5 can drive the cutter 6 to cooperate with the downward knife groove 71, so that the cutter 6 cuts the ribbon, and the cycle is repeated. The cutter 6 can intermittently cut the ribbon to a fixed length. The entire process can achieve automatic fixed-length cutting without the need for CNC components, which greatly reduces the use cost of the equipment and improves the cutting accuracy.

[0028] Among them, a cleaning mechanism 9 is arranged on the inner side of the frame 1, and the cleaning mechanism 9 includes a fixed plate 91, the fixed plate 91 is fixedly connected to the inner side of the frame 1, a sliding rod 92 penetrating the fixed plate 91 is slidably connected to the middle part of the fixed plate 91, a scraper 93 is fixedly connected to one end of the sliding rod 92, and a limited block 94 is fixedly connected to the other end of the sliding rod 92, and a spring 95 is sleeved on the sliding rod 92, one end of the spring 95 contacts the fixed plate 91, and the other end of the spring 95 contacts the scraper 93. When the cutter 6 moves up and down following the movable rod 5, the cutter 6 will slide relative to the scraper 93, and the spring 95 can make the scraper 93 fit closely with the cutter 6, so that the scraper 93 cleans up the ribbon debris attached to the cutter 6, effectively avoiding the problem that the ribbon debris on the cutter 6 affects the next cutting.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for cutting a webbing to a fixed length, comprising a frame (1), one end of the inner side of the frame (1) being rotatably connected to a feed roller (2) for conveying the webbing, and the other end of the inner side of the frame (1) being provided with a guide roller (3) for guiding the webbing, characterized in that: A fixed frame (4) is fixedly connected to the middle of the top surface of the frame (1); a movable rod (5) penetrating the fixed frame (4) is slidably connected to the top of the fixed frame (4); a cutter (6) is fixedly connected to the bottom end of the movable rod (5); a support platform (7) slidably matched with the cutter (6) is fixedly connected to the inner side of the frame (1); and a driving mechanism (8) for driving the intermittent rotation of the feeding roller (2) and the reciprocating movement of the movable rod (5) is arranged on the outer side of the frame (1).

2. A ribbon cutting-to-length device according to claim 1, characterized in that: A knife groove (71) matching the cutting knife (6) is provided on the top surface of the support platform (7), and the cutting knife (6) is slidably matched with the knife groove (71).

3. A ribbon cutting-to-length device according to claim 1, characterized in that: The guide roller member (3) comprises a first guide roller (31) and a second guide roller (32), wherein the first guide roller (31) and the second guide roller (32) are both rotatably connected to one end of the inner side of the frame (1), and the first guide roller (31) and the second guide roller (32) are arranged in parallel, the bottom end of the first guide roller (31) contacts the top surface of the webbing, and the top end of the second guide roller (32) contacts the bottom surface of the webbing.

4. The ribbon fixed-length cutting device according to claim 1, characterized in that: The driving mechanism (8) comprises a bracket (81), the bracket (81) is fixedly connected to the outside of the frame (1), a motor (82) is fixedly mounted on the top of the bracket (81), an incomplete gear (83) is fixedly connected to the middle of the output shaft of the motor (82), one end of the feeding roller (2) is coaxially fixedly connected to a transmission gear (84), and the incomplete gear (83) is intermittently meshed with the transmission gear (84).

5. A ribbon fixed-length cutting device according to claim 4, characterized in that: The gear ratio between the incomplete gear (83) and the transmission gear (84) corresponds to the required cutting length of the webbing.

6. A ribbon cutting-to-length device according to claim 4, characterized in that: The driving mechanism (8) further comprises an eccentric wheel (85), wherein the eccentric wheel (85) is fixedly connected to one end of the output shaft of the motor (82), and the outer edge of the eccentric wheel (85) is rotatably connected to a connecting rod (86) via a pin shaft, and the end of the connecting rod (86) away from the eccentric wheel (85) is hingedly connected to a push-pull rod (87), and the push-pull rod (87) is arranged parallel to the movable rod (5), and the top end of the push-pull rod (87) is fixedly connected to a connecting plate (88), and the end of the connecting plate (88) away from the push-pull rod (87) is fixedly connected to the top of the movable rod (5).

7. The ribbon fixed-length cutting device according to claim 1, characterized in that: A cleaning mechanism (9) is arranged on the inner side of the frame (1), and the cleaning mechanism (9) comprises a fixing plate (91), the fixing plate (91) is fixedly connected to the inner side of the frame (1), a sliding rod (92) penetrating the fixing plate (91) is slidably connected to the middle part of the fixing plate (91), one end of the sliding rod (92) is fixedly connected to a scraper (93), and the other end of the sliding rod (92) is fixedly connected to a limiting block (94).

8. A ribbon cutting-to-length device according to claim 7, characterized in that: The cleaning mechanism (9) further comprises a spring (95), wherein the spring (95) is sleeved on the slide bar (92), one end of the spring (95) abuts against the fixed plate (91), and the other end of the spring (95) abuts against the scraper (93).

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