Cutting knife for braid cutting device

Abstract

The utility model relates to the technical field of braid production, discloses a cutting knife for a braid cutting device, and solves the problems that as the cutting knife and a knife rest of the conventional braid cutting knife are fixedly mounted, when the cutting knife is used for cutting for a long time, the cutting knife becomes blunt due to abrasion, the quality of the cut braid is poor, and the cutting efficiency is high. The cutting knife for the braid cutting device solves the problem that the labor intensity of workers is increased due to the fact that a cutting knife is arranged on the working table, a lifting assembly is arranged above the working table, a cutting knife assembly is arranged below the lifting assembly, and a set of stand columns are symmetrically arranged on the two sides of the upper portion of the working table. A top plate is arranged above the stand column, a lifting assembly is arranged in the top plate, the cutting knife assembly is pushed through the lifting assembly to cut the braid, the cutting knife can be conveniently and rapidly installed and detached through the cutting knife assembly, and a new cutting knife can be conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of webbing production, in particular to a cutting knife used in a webbing cutting device. Background Art

[0002] Ribbon is a narrow or tubular fabric made of various yarns. There are many varieties of ribbon fabrics, which are widely used in clothing, shoes, bags, industry, agriculture, military supplies, transportation and other industrial sectors. At the beginning of the development of ribbon, it was produced by handicraft workshops. The raw materials were cotton and linen. Later, the raw materials of ribbon gradually developed to nylon, vinylon, polyester, polypropylene, spandex, viscose, etc., forming three major process technologies: weaving, braiding and knitting.

[0003] In the field of webbing technology, the webbings produced by webbing knitting machines are all very long and need to be cut into required lengths when in use. Hot melt cutting machines are usually used for cutting. However, the existing webbing cutters are fixedly installed between the cutter and the knife holder. When the cutter is used for a long time, the cutter becomes blunt due to wear, resulting in poor quality of the cut webbing. At this time, it is troublesome to replace the new cutter, which increases the labor intensity of the staff. Utility Model Content

[0004] The utility model aims to provide a cutting knife for a ribbon cutting device, which adopts the structure to work, thereby solving the problem that the existing ribbon cutting knife is fixedly installed between the cutting knife and the knife holder. When the cutting knife is used for cutting for a long time, the cutting knife becomes blunt due to wear, resulting in poor quality of the cut ribbon. At this time, it is troublesome to replace a new cutting knife, which increases the labor intensity of the staff.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting knife for a webbing cutting device, comprising a workbench, a lifting assembly is arranged above the workbench, a cutting knife assembly is arranged below the lifting assembly, a group of columns are symmetrically arranged on both sides above the workbench, a top plate is arranged above the columns, and a lifting assembly is arranged inside the top plate. The cutting knife assembly is pushed by the lifting assembly to cut the webbing, and the cutting knife assembly allows the cutting knife to be easily installed and disassembled, so that it is convenient to replace a new cutting knife.

[0006] Preferably, the lifting assembly includes a hydraulic cylinder installed on the top plate, one end of the hydraulic cylinder is connected to a hydraulic telescopic rod, the end of the hydraulic telescopic rod away from the hydraulic cylinder is provided with a connecting plate, both ends of the connecting plate are provided with sliding sleeves, the sliding sleeves are provided on the outside of the column, and the cutting knife is pushed by the lifting assembly to cut the webbing.

[0007] Preferably, the cutting knife assembly includes an outer shell that is penetrated by the inner part of the connecting plate, a threaded groove is provided inside the outer shell, a screw is provided inside the threaded groove, a rotating wheel is provided at the upper end of the screw, and a movable block is provided at the lower end of the screw. The movable block on the screw is driven to move vertically by rotating the rotating wheel, thereby controlling the movement of the rotating plate.

[0008] Preferably, a movable groove is provided at the lower end of the thread groove, the interior of the movable groove is connected to the interior of the thread groove, a rotating shaft is symmetrically provided inside the movable groove, and a rotating plate is sleeved on the outside of the rotating shaft so that the rotating plate can rotate around the rotating shaft to control the installation and disassembly of the blade.

[0009] Preferably, a push plate is provided at one end of the rotating plate close to the movable block, a clamping block is provided on the inner side of the rotating plate, a return spring is provided on the outer side of the rotating plate, and the other end of the return spring is provided inside the movable groove. When the force applied to the rotating plate disappears, the return spring pulls the push plate to make the clamping block disengage from the clamping slot, thereby disassembling the cutting knife.

[0010] Preferably, a knife groove is provided at one end of the shell away from the thread groove, the knife groove is connected to the movable groove, a thermal cutter is provided inside the knife groove, a clamping groove is provided on the side of the thermal cutter, the clamping groove cooperates with the clamping block, the thermal cutter is clamped into the knife groove, and the thermal cutter is fixed once.

[0011] Preferably, a clamping assembly is provided below the thermal cutter, the clamping assembly comprises a base installed above the workbench, support columns are symmetrically provided at one end of the base, a rotating rod is provided between the support columns, a pressure plate is provided on the outer sleeve of the rotating rod, and the flat webbing is supported by the clamping assembly to facilitate cutting by the thermal cutter.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model provides a cutting knife for a ribbon cutting device. The hot cutting knife is inserted into a knife groove in a cutting knife assembly so that the hot cutting knife can be simply fixed once. The screw rod drives the movable block to move downward by rotating the rotating wheel. The movable block is inserted between push plates, and the push plates are moved to both sides so that the push plates drive the rotating plate to rotate around the rotating shaft. The lower end of the rotating plate is inclined and approaches the hot cutting knife until the clamping block is inserted into the clamping groove and the hot cutting knife is fixed and installed. When the hot cutting knife needs to be removed, the rotating wheel is rotated in the opposite direction so that the screw rod drives the movable block to move upward. The movable block leaves between the push plates. There is no obstacle between the push plates. The pulling force of the reset spring pulls the rotating plate to rotate around the rotating shaft and returns to the original position. At this time, the clamping block is separated from the clamping groove, and the hot cutting knife is pulled downward. The hot cutting knife is removed for maintenance or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2This is a schematic diagram of the baking plane structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure inside the shell of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the cutting knife assembly of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the lower end of the shell of the utility model.

[0019] In the figure: 1. workbench; 2. column; 3. top plate; 4. lifting assembly; 41. hydraulic cylinder; 42. hydraulic telescopic rod; 43. connecting plate; 44. sliding sleeve; 5. cutting knife assembly; 51. housing; 52. threaded groove; 53. screw; 531. rotating wheel; 532. movable block; 54. movable groove; 55. rotating shaft; 56. rotating plate; 561. pushing plate; 562. clamping block; 57. reset spring; 58. knife groove; 59. hot cutting knife; 591. slot; 6. clamping assembly; 61. base; 62. supporting column; 63. rotating rod; 64. pressing plate. DETAILED DESCRIPTION

[0020] 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.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1-Figure 5 A cutting knife for a webbing cutting device comprises a workbench 1, a lifting assembly 4 is arranged above the workbench 1, a cutting knife assembly 5 is arranged below the lifting assembly 4, a group of columns 2 are symmetrically arranged on both sides above the workbench 1, a top plate 3 is arranged above the columns 2, and a lifting assembly 4 is arranged inside the top plate 3.

[0023] The lifting assembly 4 includes a hydraulic cylinder 41 installed on the top plate 3, one end of the hydraulic cylinder 41 is connected to a hydraulic telescopic rod 42, and a connecting plate 43 is provided at one end of the hydraulic telescopic rod 42 away from the hydraulic cylinder 41. Slide sleeves 44 are provided at both ends of the connecting plate 43, and the slide sleeves 44 are sleeved on the outside of the column 2. The cutting knife assembly 5 includes an outer shell 51 that is set through the inner part of the connecting plate 43, a threaded groove 52 is provided inside the outer shell 51, a screw 53 is provided inside the threaded groove 52, a rotating wheel 531 is provided at the upper end of the screw 53, a movable block 532 is provided at the lower end of the screw 53, and a The movable groove 54 is connected to the inner part of the thread groove 52, and the movable groove 54 is symmetrically provided with a rotating shaft 55. The outer part of the rotating shaft 55 is sleeved with a rotating plate 56. The end of the rotating plate 56 close to the movable block 532 is provided with a push plate 561, and the inner side of the rotating plate 56 is provided with a clamping block 562. The outer side of the rotating plate 56 is provided with a return spring 57. The other end of the return spring 57 is arranged in the movable groove 54. The end of the housing 51 away from the thread groove 52 is provided with a knife groove 58, and the knife groove 58 is connected to the movable groove 54. The interior of the knife groove 58 is provided with a hot cutting knife 59, and the side of the hot cutting knife 59 is provided with The card slot 591 cooperates with the card block 562. A clamping assembly 6 is arranged below the hot cutter 59. The clamping assembly 6 includes a base 61 installed above the workbench. One end of the base 61 is symmetrically provided with a support column 62. A rotating rod 63 is arranged between the support columns 62. A pressing plate 64 is sleeved on the outer side of the rotating rod 63. The hot cutter 59 is clamped into the knife slot 58 in the cutting knife assembly 5, so that the hot cutter 59 is simply fixed once. By rotating the rotating wheel 531, the screw rod 53 drives the movable block 532 to move downward. The movable block 532 is inserted between the push plates 561 and the push plates 561 are moved to both sides. The push plate 561 drives the rotating plate 56 to rotate around the rotating shaft 55, and the lower end of the rotating plate 56 tilts and approaches the hot cutter 59 until the clamping block 562 is inserted into the clamping slot 591, and the hot cutter 59 is fixed to complete the installation. When the hot cutter 59 needs to be removed, the rotating wheel 531 is rotated in the opposite direction to make the screw rod 53 drive the movable block 532 to move upward, and the movable block 532 leaves between the push plates 561. There is no obstacle between the push plates 561, and the pulling force of the return spring 57 pulls the rotating plate 56 to rotate around the rotating shaft 55 and return to the original position. At this time, the clamping block 562 is separated from the clamping slot 591, and the hot cutter 59 is pulled downward, and the hot cutter 59 is removed for maintenance or replacement.

[0024] Working principle: First, place the webbing on the base 61 in the clamping assembly 6, lower the pressure plate 64 to fix the webbing, insert the hot cutter 59 through the knife groove 58 in the cutting knife assembly 5, so that the hot cutter 59 is simply fixed once, and the screw 53 drives the movable block 532 to move downward by rotating the rotating wheel 531. The movable block 532 is inserted between the push plates 561, and the push plates 561 are moved to both sides, so that the push plates 561 drive the rotating plate 56 to rotate around the rotating shaft 55, and the lower end of the rotating plate 56 is tilted toward the hot cutter 59 until the block 562 is inserted into the slot 591 to fix the hot cutter. After the knife 59 is installed, the hydraulic cylinder 41 is started, so that the hydraulic telescopic rod 42 drives the hot cutter 59 below the connecting plate 43 to cut the webbing downward. When the hot cutter 59 needs to be removed, the rotating wheel 531 is rotated in the opposite direction so that the screw rod 53 drives the movable block 532 to move upward, and the movable block 532 leaves between the push plates 561. There is no obstacle between the push plates 561. The pulling force of the return spring 57 pulls the rotating plate 56 to rotate around the rotating shaft 55 and return to the original position. At this time, the clamping block 562 is separated from the clamping slot 591, and the hot cutter 59 is pulled downward. The hot cutter 59 is removed for maintenance or replacement.

[0025] 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.

[0026] 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 cutting knife for a webbing cutting device, comprising a workbench (1), a lifting assembly (4) being arranged above the workbench (1), and a cutting knife assembly (5) being arranged below the lifting assembly (4), characterized in that: A group of columns (2) are symmetrically arranged on both sides above the workbench (1), a top plate (3) is arranged above the columns (2), a lifting assembly (4) is arranged inside the top plate (3), the lifting assembly (4) comprises a hydraulic cylinder (41) mounted on the top plate (3), one end of the hydraulic cylinder (41) is connected to a hydraulic telescopic rod (42), an end of the hydraulic telescopic rod (42) away from the hydraulic cylinder (41) is provided with a connecting plate (43), both ends of the connecting plate (43) are provided with sliding sleeves (44), the sliding sleeves (44) are sleeved on the outside of the columns (2), and the cutting knife assembly (5) comprises an outer shell (51) penetrating the inside of the connecting plate (43), a threaded groove (52) is arranged inside the outer shell (51), a screw (53) is arranged inside the threaded groove (52), a rotating wheel (531) is arranged at the upper end of the screw (53), and a movable block (53) is arranged at the lower end of the screw (53). 532, a movable groove (54) is provided at the lower end of the thread groove (52), the interior of the movable groove (54) is communicated with the interior of the thread groove (52), a rotating shaft (55) is symmetrically provided inside the movable groove (54), a rotating plate (56) is sleeved on the outside of the rotating shaft (55), a push plate (561) is provided at one end of the rotating plate (56) close to the movable block (532), a clamping block (562) is provided on the inner side of the rotating plate (56), a return spring (57) is provided on the outer side of the rotating plate (56), the other end of the return spring (57) is provided inside the movable groove (54), a knife groove (58) is provided at one end of the housing (51) away from the thread groove (52), the knife groove (58) is communicated with the movable groove (54), a hot cutting knife (59) is provided inside the knife groove (58), a clamping groove (591) is provided on the side of the hot cutting knife (59), and the clamping groove (591) cooperates with the clamping block (562).

2. The cutting knife for a ribbon cutting device according to claim 1, characterized in that: A clamping assembly (6) is arranged below the hot cutting knife (59), and the clamping assembly (6) comprises a base (61) mounted above the workbench (1), support columns (62) are symmetrically arranged at one end of the base (61), a rotating rod (63) is arranged between the support columns (62), and a pressure plate (64) is sleeved on the outside of the rotating rod (63).

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