Flame-retardant cotton punching machine

Abstract

The utility model discloses a flame-retardant cotton punching machine, and relates to the technical field of flame-retardant cotton processing. The conveying mechanism is mounted on the rack in the horizontal direction and used for conveying flame-retardant cotton; the punching mechanism is mounted in the middle of the rack and used for punching the flame-retardant cotton; the conveying mechanism comprises a first conveying belt and a second conveying belt, the first conveying belt penetrates through the punching mechanism, a leveling roller installed on the rack is arranged above the first conveying belt, and a tensioning roller set used for tensioning flame-retardant cotton is arranged between the first conveying belt and the second conveying belt. The flame-retardant cotton punching machine has the beneficial effects that by arranging the tensioning roller set, flame-retardant cotton is in a tensioned state during punching, the bending deformation capacity of the flame-retardant cotton is reduced, the flame-retardant cotton is completely broken after being punched, and the situation that the flame-retardant cotton is likely to be adhered after being punched is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame retardant cotton processing, in particular to a flame retardant cotton punching machine. Background Art

[0002] Flame retardant cotton is a cotton fiber product with flame retardant properties after special chemical treatment or physical modification. Its main characteristics are that it can slow down the burning speed when it comes into contact with flames, and can quickly extinguish itself after leaving the fire source. In addition, it produces relatively less smoke and toxic gases during the combustion process, thereby improving fire safety.

[0003] When flame-retardant cotton is processed into corresponding products, it needs to be cut into set sizes. The punching processing speed is relatively fast. Therefore, the commonly used processing method is to cut the rolled flame-retardant cotton raw materials into flame-retardant cotton of set sizes by punching.

[0004] However, during the production process, it was found that the flame-retardant cotton was occasionally not completely separated after punching, and some fibers between the flame-retardant cotton were not disconnected. Manual inspection and separation of the flame-retardant cotton were required subsequently, which increased the workload of the staff.

[0005] To solve the above problem, a second punching can be performed, but the two punchings must be made at the same position, and the precision requirement is relatively high. Similar situations also exist in the field of non-woven fabric punching. The existing solution is to set a push plate that can be raised and lowered in the up and down directions on the frame, and set a slot under the push plate. When the punched non-woven fabric passes through the slot, the push plate pushes the non-woven fabric into the slot to separate the non-woven fabric.

[0006] After testing, it was found that when the above mechanism separates thick flame-retardant cotton, if there are many unbroken fibers, the above mechanism cannot completely separate the flame-retardant cotton, and the separation effect does not meet expectations. Utility Model Content

[0007] The purpose of the utility model is to provide a flame retardant cotton punching machine in order to solve the above problems.

[0008] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0009] A flame retardant cotton punching machine, comprising:

[0010] frame;

[0011] A conveying mechanism, which is installed on the frame in a horizontal direction and is used to convey the flame-retardant cotton;

[0012] A punching mechanism, which is installed in the middle of the frame and is used for punching and cutting flame-retardant cotton;

[0013] The conveying mechanism includes a first conveyor belt and a second conveyor belt. The first conveyor belt passes through the punching mechanism. A leveling roller installed on a frame is provided above the first conveyor belt. A tensioning roller group for tensioning the flame-retardant cotton is provided between the first conveyor belt and the second conveyor belt, so that the flame-retardant cotton is in a taut state during punching.

[0014] As a further improvement, the tensioning roller set includes an upper tensioning roller and a lower tensioning roller which are arranged at intervals in the up-down direction.

[0015] As a further improvement, the upper tensioning roller and the lower tensioning roller are both installed with rubber sleeves for increasing friction.

[0016] As a further improvement, the punching mechanism includes a mounting frame and a guide sleeve fixedly mounted on the mounting frame, a guide column is slidably mounted in the guide sleeve, the top of the guide column is fixedly connected to the mounting plate, a punching blade is bolted to the mounting plate, a connecting rod is hinged at the bottom of the guide column, the other end of the connecting rod is rotatably connected to an eccentric wheel arranged on the mounting frame, the eccentric wheel is rotatably mounted on the mounting frame, and a motor for driving the eccentric wheel to rotate is also mounted on the mounting frame.

[0017] As a further improvement, the punching blade is provided with cutting edges at both upper and lower ends.

[0018] As a further improvement, a dust cover is also installed on the mounting frame to reduce dust from entering the guide sleeve.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By setting a tension roller group, the flame retardant cotton is in a tight state during punching, reducing the ability of the flame retardant cotton to bend and deform. The flame retardant cotton is completely disconnected after punching, solving the problem of possible adhesion of the flame retardant cotton after punching.

[0021] 2. The punching blade of the utility model adopts a double-sided blade structure. When one of the blades is worn, the punching blade can be turned over and used, which reduces the replacement frequency of the punching blade and reduces the problem of poor punching effect of flame retardant cotton due to blade wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a structural schematic diagram of a flame retardant cotton punching and cutting machine described in the utility model.

[0024] Figure 2 It is a front view of a punching blade of a flame retardant cotton punching machine described in the utility model.

[0025] Figure 3 It is a cross-sectional view of a punching blade of a flame-retardant cotton punching machine described in the utility model.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Raw material rack; 2. Flame-retardant cotton; 3. Frame; 4. Smoothing roller; 5. Punching mechanism; 51. Mounting frame; 52. Guide sleeve; 53. Guide column; 54. Connecting rod; 55. Eccentric wheel; 56. Mounting plate; 57. Punching blade; 58. Grip; 6. Tensioning roller group; 61. Upper tensioning roller; 62. Lower tensioning roller; 7. Conveying mechanism; 71. First conveyor belt; 72. Second conveyor belt. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] like Figure 1-Figure 3 As shown, the flame retardant cotton punching and cutting machine includes a frame 3, a conveying mechanism 7 and a punching and cutting mechanism 5;

[0032] The conveying mechanism 7 is installed on the frame 3 in the horizontal direction and is used to convey the flame-retardant cotton 2. The conveying mechanism 7 includes a first conveyor belt 71 and a second conveyor belt 72. The first conveyor belt 71 and the second conveyor belt 72 are both prior arts, and their structures are not repeated here. The first conveyor belt 71 passes through the punching mechanism 5. A leveling roller 4 installed on the frame 3 is provided above the first conveyor belt 71. The leveling roller 4 is an active roller. There are multiple leveling rollers 4 for flattening the flame-retardant cotton 2. The rotation speed of the leveling roller 4 is consistent with that of the first conveyor belt 71. A tensioning roller group 6 for tensioning the flame-retardant cotton 2 is provided between the first conveyor belt 71 and the second conveyor belt 72. The tensioning roller group 6 includes a tensioning roller group 6 along the upper The upper tensioning roller 61 and the lower tensioning roller 62 are arranged at intervals in the downward direction. Both the upper tensioning roller 61 and the lower tensioning roller 62 are active rollers. Both the upper tensioning roller 61 and the lower tensioning roller 62 are installed with rubber sleeves for increasing friction. The rotation speed of the upper tensioning roller 61 and the lower tensioning roller 62 is greater than that of the smoothing roller 4. In this way, the flame retardant cotton 2 is in a stretched and tight state during punching. It has been observed that the flame retardant cotton 2 is in a relaxed state during punching, and the fibers have a certain amount of space for mutual displacement, which may cause a small amount of fibers to be unbroken. After the flame retardant cotton 2 is stretched, the ability of the flame retardant cotton 2 to bend and deform itself is reduced. During punching, the fibers of the flame retardant cotton 2 are more easily broken.

[0033] The punching mechanism 5 is installed in the middle of the frame 3 and is used for punching the flame retardant cotton 2. The punching mechanism 5 includes a mounting frame 51 and a guide sleeve 52 fixedly installed on the mounting frame 51. A guide column 53 is slidably mounted in the guide sleeve 52. The top of the guide column 53 is fixedly connected to the mounting plate 56. The mounting plate 56 is bolted with a punching blade 57. The bottom of the guide column 53 is hinged with a connecting rod 54. The other end of the connecting rod 54 is rotatably connected to an eccentric wheel 55 arranged on the mounting frame 51. The eccentric wheel 55 is rotatably mounted on the mounting frame 51. A motor for driving the eccentric wheel 55 to rotate is also installed on the mounting frame 51. In other embodiments, a cam can also be used instead of the eccentric wheel 55.

[0034] In this embodiment, the punching blade 57 is provided with blades at both ends. When one of the blades is worn, the punching blade 57 can be turned over for use, thereby reducing the replacement frequency of the punching blade 57. Since the punching blade 57 is double-sided, grips 58 are provided at both ends of the punching blade 57 to facilitate disassembly and removal of the punching blade 57.

[0035] In order to reduce dust from entering the guide sleeve 52 and causing wear on the guide sleeve 52 and the guide column 53 , a dust cover is also installed on the mounting frame 51 to reduce dust from entering the guide sleeve 52 and ensure that the guide column 53 can slide smoothly for a long time.

[0036] Working principle: Before punching, first lift the rolled flame-retardant cotton 2 onto the raw material rack 1 to complete the loading. The flame-retardant cotton 2 is continuously transported by the first conveyor belt 71. When the flame-retardant cotton 2 passes through the leveling roller 4, it is flattened by the leveling roller 4 to ensure that the surface of the flame-retardant cotton 2 is flat. Since the rotation speed of the upper tensioning roller 61 and the lower tensioning roller 62 is greater than that of the first conveyor belt 71 and the leveling roller 4, when the flame-retardant cotton 2 moves between the upper tensioning roller 61 and the lower tensioning roller 62, the flame-retardant cotton 2 will be stretched, and the flame-retardant cotton 2 is in a taut state, making it easier for the flame-retardant cotton 2 to be punched and cut, greatly reducing the situation where some fibers are not completely disconnected.

[0037] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements shall fall within the scope of the utility model to be protected.

Claims

1. A flame retardant cotton punching machine, comprising: Rack (3); A conveying mechanism (7) is mounted on the frame (3) in a horizontal direction and is used to convey the flame-retardant cotton (2); A punching mechanism (5), which is installed in the middle of the frame (3) and is used for punching the flame-retardant cotton (2); The conveying mechanism (7) is characterized in that the conveying mechanism (7) comprises a first conveying belt (71) and a second conveying belt (72), the first conveying belt (71) passes through the punching mechanism (5), a leveling roller (4) installed on the frame (3) is provided above the first conveying belt (71), and a tensioning roller group (6) for tensioning the flame-retardant cotton (2) is provided between the first conveying belt (71) and the second conveying belt (72), so that the flame-retardant cotton (2) is in a taut state during punching.

2. The flame retardant cotton punching machine according to claim 1, characterized in that: The tensioning roller group (6) comprises an upper tensioning roller (61) and a lower tensioning roller (62) which are arranged at intervals in the up-down direction.

3. The flame retardant cotton punching machine according to claim 2, characterized in that: The upper tensioning roller (61) and the lower tensioning roller (62) are both provided with rubber sleeves for increasing friction.

4. The flame retardant cotton punching machine according to claim 1, characterized in that: The punching mechanism (5) comprises a mounting frame (51) and a guide sleeve (52) fixedly mounted on the mounting frame (51); a guide column (53) is slidably mounted in the guide sleeve (52); the top of the guide column (53) is fixedly connected to a mounting plate (56); a punching blade (57) is bolted to the mounting plate (56); a connecting rod (54) is hingedly connected to the bottom of the guide column (53); the other end of the connecting rod (54) is rotatably connected to an eccentric wheel (55) arranged on the mounting frame (51); the eccentric wheel (55) is rotatably mounted on the mounting frame (51); and a motor for driving the eccentric wheel (55) to rotate is also mounted on the mounting frame (51).

5. The flame retardant cotton punching machine according to claim 4, characterized in that: The punching blade (57) is provided with cutting edges at both the upper and lower ends.

6. The flame retardant cotton punching machine according to claim 4, characterized in that: A dustproof shell is also installed on the mounting frame (51) to reduce dust from entering the guide sleeve (52).

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