Double-cutting-knife type cotton yarn strip cutting-off structure

Abstract

The utility model relates to the technical field of cotton yarn sliver production, and discloses a double-cutter type cotton yarn sliver cutting structure which comprises a bottom plate, a conveying mechanism is arranged at the top end of the bottom plate, and the top end of the bottom plate is fixedly connected with a first supporting seat located on the front side of the conveying mechanism. Through the arrangement of the lifting seats, the cutting knife, the fixed shaft, the cam follower and the driving mechanism, the driving mechanism is started, the cam follower is driven by the driving mechanism to rotate clockwise and then anticlockwise along the outer side of the fixed shaft, and the operation is continuously repeated, so that when one lifting seat slides downwards along the inner side of the first mounting seat, the other lifting seat is driven by the driving mechanism to rotate anticlockwise; one lifting seat slides upwards along the inner side of the first mounting seat, and the other lifting seat slides upwards along the inner side of the first mounting seat, so that one cutting knife moves downwards to cut off cotton yarn strips, the other cutting knife moves upwards to reset, and the two cutting knives alternately complete the cutting work of the cotton yarn strips, and compared with the prior art, the energy waste is reduced, and the actual production of enterprises is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cotton yarn strip production, in particular to a double-cutting knife type cotton yarn strip cutting structure. Background Art

[0002] Cotton yarn is the yarn made from cotton fiber through spinning process, and is called cotton thread after plying. According to different spinning processes, it can be divided into carded yarn and combed yarn. Carded yarn: It is the yarn spun from cotton fiber through ordinary spinning system. Combed yarn: It is the yarn spun from cotton fiber through combed spinning system. Combed yarn is made of high-quality raw materials. The fibers in the yarn are straight and parallel, with few knots, good luster, uniform yarn and high strength. This type of cotton yarn is mostly used to weave high-end fabrics.

[0003] Most of the existing cotton yarn cutting devices adopt the form of a driving mechanism driving a cutting knife to move. This form causes energy loss when the driving mechanism drives the cutting knife to retract. In order to solve this problem, a double-cutting knife type cotton yarn cutting structure is proposed to overcome the above defects. When the driving mechanism drives one cutting knife to retract, the other cutting knife is pressed down to cut the cotton yarn at the same time, reducing energy waste and facilitating the actual production of the enterprise. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model aims to solve the problem that most of the existing cotton yarn cutting devices adopt a form of a driving mechanism to drive a cutting knife to move, which causes energy loss when the driving mechanism drives the cutting knife to retract, and proposes a double cutting knife type cotton yarn cutting structure.

[0006] (II) Technical solution

[0007] The technical solution of the utility model to solve the above technical problems is as follows:

[0008] A double-cutting-knife type cotton yarn cutting structure comprises a bottom plate, a transmission mechanism is arranged at the top of the bottom plate, a first support seat located at the front side of the transmission mechanism is fixedly connected to the top of the bottom plate, a first mounting seat is fixedly connected to the rear end of the first support seat, a cutting mechanism is arranged on the first mounting seat, a second support seat located at the rear side of the transmission mechanism is fixedly connected to the top of the bottom plate, a second mounting seat is fixedly connected to the front end of the second support seat, a driving mechanism for driving the cutting mechanism is arranged on the second mounting seat, and the second mounting seat is fixedly connected to the rear end of the first support seat;

[0009] The cutting mechanism includes a lifting seat, two lifting seats are slidably connected to the inner side of the first mounting seat, and cutting knives are fixedly connected to the opposite sides of the two lifting seats. A fixed shaft is fixedly connected between the first mounting seat and the second mounting seat, and a cam follower is rotatably connected to the outer side of the fixed shaft. The two lifting seats are respectively hinged to the left and right ends of the cam follower through hinge shafts.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Preferably, the driving mechanism includes an articulated seat, the top end of the second mounting seat is fixedly connected to the articulated seat, the inner side of the articulated seat is hinged with a cylinder, the inner side of the cylinder is slidably connected with a cylinder top rod, the left end of the cylinder top rod is fixedly connected with a connecting head, the inner side of the connecting head is hinged with a connecting piece, and the connecting piece is fixedly connected to the top end of the cam follower.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0014] The utility model provides a lifting seat, a cutting knife, a fixed shaft, a cam follower and a driving mechanism, and starts the driving mechanism. The cam follower is driven by the driving mechanism to rotate clockwise first and then counterclockwise along the outer side of the fixed shaft, and the cycle is repeated continuously. Therefore, when one lifting seat slides downward along the inner side of the first mounting seat, the other lifting seat slides upward along the inner side of the first mounting seat, so that one cutting knife moves downward to cut off the cotton yarn strip, and the other cutting knife moves upward to reset. The two cutting knives alternately complete the work of cutting off the cotton yarn strip, which reduces energy waste compared with the prior art and is beneficial to the actual production of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 The utility model is a schematic structural diagram of the relative position relationship between the lifting seat and the cam follower.

[0017] In the figure: 1. bottom plate; 2. transmission mechanism; 3. first support seat; 4. first mounting seat; 5. cutting mechanism; 51. lifting seat; 52. cutting knife; 53. fixed axis; 54. cam follower; 6. second support seat; 7. second mounting seat; 8. driving mechanism; 81. articulated seat; 82. cylinder; 83. cylinder push rod; 84. connector; 85. connector. DETAILED DESCRIPTION

[0018] 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.

[0019] In the embodiment, Figure 1 and Figure 2 A double-cutting-knife type cotton yarn cutting structure is provided, comprising a bottom plate 1, a transmission mechanism 2 is arranged at the top of the bottom plate 1, a first support seat 3 located at the front side of the transmission mechanism 2 is fixedly connected to the top of the bottom plate 1, a first mounting seat 4 is fixedly connected to the rear end of the first support seat 3, a cutting mechanism 5 is arranged on the first mounting seat 4, a second support seat 6 located at the rear side of the transmission mechanism 2 is fixedly connected to the top of the bottom plate 1, a second mounting seat 7 is fixedly connected to the front end of the second support seat 6, a driving mechanism 8 for driving the cutting mechanism 5 is arranged on the second mounting seat 7, and the second mounting seat 7 is fixedly connected to the rear end of the first support seat 3;

[0020] The cutting mechanism 5 includes a lifting seat 51, two lifting seats 51 are slidably connected to the inner side of the first mounting seat 4, and a cutting knife 52 is fixedly connected to the opposite side of the two lifting seats 51. A fixed shaft 53 is fixedly connected between the first mounting seat 4 and the second mounting seat 7, and a cam follower 54 is rotatably connected to the outer side of the fixed shaft 53. The two lifting seats 51 are respectively hinged to the left and right ends of the cam follower 54 through hinge shafts.

[0021] Through the above arrangement, the cotton yarn strip is placed above the transmission mechanism 2, and the cotton yarn strip is transmitted from right to left through the transmission mechanism 2, and the driving mechanism 8 is started. The cam follower 54 is driven by the driving mechanism 8 to rotate clockwise and then counterclockwise along the outer side of the fixed axis 53, and the cycle is repeated continuously. Therefore, when one lifting seat 51 slides downward along the inner side of the first mounting seat 4, the other lifting seat 51 slides upward along the inner side of the first mounting seat 4, thereby causing one cutting knife 52 to move downward to cut off the cotton yarn strip, and the other cutting knife 52 moves upward to reset, and the two cutting knives 52 alternately complete the cutting work of the cotton yarn strip, and the cutting is completed. The cotton yarn strips are transmitted to the left side of the transmission mechanism 2 by the transmission mechanism 2, and a collecting device is set on the left side of the transmission mechanism 2 for collection. It should be noted that the transmission mechanism 2 is an existing technology that can be known to technicians in the technical field and can transmit cotton yarn strips without hindering the two cutting knives 52 from cutting the cotton yarn strips. Therefore, it will not be described in detail here. In addition, the cam follower 54 is shaped like a cam, and its working principle is similar to the principle of cam rotation around the axis, thereby driving one lifting seat 51 to slide downward along the inner side of the first mounting seat 4 at the same time, and the other lifting seat 51 can slide upward along the inner side of the first mounting seat 4.

[0022] Reference Figure 1 and Figure 2 , wherein the driving mechanism 8 comprises an articulated seat 81, the top end of the second mounting seat 7 is fixedly connected with the articulated seat 81, the inner side of the articulated seat 81 is articulated with a cylinder 82, the inner side of the cylinder 82 is slidably connected with a cylinder top rod 83, the left end of the cylinder top rod 83 is fixedly connected with a connector 84, the inner side of the connector 84 is articulated with a connector 85, and the connector 85 is fixedly connected to the top end of the cam follower 54;

[0023] Through the above-mentioned structural arrangement, the cylinder 82 is started, and the cylinder push rod 83 continuously repeats the retraction and ejection actions. Since the top of the second mounting seat 7 is fixedly connected to the hinge seat 81, and the inner side of the connecting head 84 is hinged with a connecting member 85, there is motion compensation. The connecting member 85 can drive the cam follower 54 to rotate clockwise first and then counterclockwise, and continuously repeat these two rotation actions.

[0024] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0025] 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 double-cutting-knife type cotton yarn cutting structure, characterized in that: The invention comprises a bottom plate (1), a transmission mechanism (2) being arranged at the top of the bottom plate (1), a first support seat (3) being fixedly connected to the top of the bottom plate (1) and being located at the front side of the transmission mechanism (2), a first mounting seat (4) being fixedly connected to the rear end of the first support seat (3), a cut-off mechanism (5) being arranged on the first mounting seat (4), a second support seat (6) being fixedly connected to the top of the bottom plate (1) and being located at the rear side of the transmission mechanism (2), a second mounting seat (7) being fixedly connected to the front end of the second support seat (6), a driving mechanism (8) for driving the cut-off mechanism (5) being arranged on the second mounting seat (7), and the second mounting seat (7) being fixedly connected to the rear end of the first support seat (3); The cutting mechanism (5) comprises a lifting seat (51), the inner side of the first mounting seat (4) is slidably connected to two lifting seats (51), opposite sides of the two lifting seats (51) are fixedly connected to cutting knives (52), a fixed shaft (53) is fixedly connected between the first mounting seat (4) and the second mounting seat (7), the outer side of the fixed shaft (53) is rotatably connected to a cam follower (54), and the two lifting seats (51) are respectively hinged to the left and right ends of the cam follower (54) through hinge shafts.

2. A double-cutting-knife type cotton yarn cutting structure according to claim 1, characterized in that: The driving mechanism (8) comprises an articulated seat (81), the top end of the second mounting seat (7) is fixedly connected to the articulated seat (81), the inner side of the articulated seat (81) is articulated to a cylinder (82), the inner side of the cylinder (82) is slidably connected to a cylinder push rod (83), the left end of the cylinder push rod (83) is fixedly connected to a connecting head (84), the inner side of the connecting head (84) is articulated to a connecting piece (85), and the connecting piece (85) is fixedly connected to the top end of the cam follower (54).

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