Fixed-length cutting device for production of non-woven fabrics of automobile roofs

Abstract

The utility model belongs to the technical field of production of non-woven fabrics of automobile roofs, and particularly relates to a fixed-length cutting device for production of non-woven fabrics of automobile roofs, which comprises a workbench and support columns, the support columns are fixedly connected to four corners of the lower side of the workbench, and the upper end of the workbench is connected with a cutting mechanism. According to the fixed-length cutting device for production of the non-woven fabric of the automobile ceiling, when the non-woven fabric of the automobile ceiling is cut, the non-woven fabric to be cut is firstly placed on the workbench, then a sliding block slides along the inner side of a sliding groove, a cutting knife is driven to move to a non-woven fabric cutting position, then a pull rod is held to press downwards, and the cutting knife at the lower end is driven to move downwards; and after the cutting knife moves to the position above the non-woven fabric, the pressing plates move to the upper end of the non-woven fabric at the same time, the non-woven fabric at the left end and the right end of the cutting knife is pressed tightly, then a moving block slides front and back along the outer side of a limiting rod, and the cutting knife at the lower end is driven to move on the non-woven fabric to cut the non-woven fabric.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric production for automobile roofs, and particularly relates to a fixed-length cutting device for non-woven fabric production for automobile roofs. Background Art

[0002] Non-woven fabric is a new generation of environmentally friendly material, which has the characteristics of moisture-proof, breathable, flexible, light in weight, non-flammable, easy to decompose, non-toxic and non-irritating, rich in colors, low in price, recyclable, etc. Non-woven fabric is widely used in automobiles and has gradually replaced the raw materials of many previous automobile interior materials, sound insulation cotton, etc.

[0003] However, when cutting non-woven fabric, if the area where the non-woven fabric is laid is not flat, the roller may drive the cutter head to skew when rolling, resulting in irregular cuts of the non-woven fabric, which is very inconvenient to use.

[0004] As disclosed in a non-woven fabric cutting device of Chinese Patent CN218880412U, when cutting non-woven fabric, the non-woven fabric is placed between the base and the cutting seat, the base and the cutting seat are connected to clamp the non-woven fabric, the cutting knife pierces the non-woven fabric and presses against the base, and the cutting knife is manually pushed to slide, and the cutting knife cuts off the non-woven fabric. And due to the clamping of the non-woven fabric by the base and the cutting seat, the non-woven fabric will not wrinkle under the action of the cutting knife during cutting.

[0005] However, a structure for measuring the length of the non-woven fabric is not provided on this cutting device, so it is not convenient to cut the non-woven fabric at a fixed length.

[0006] Therefore, we urgently need to provide a fixed-length cutting device for non-woven fabric production for automobile roofs. Content of the Utility Model

[0007] The purpose of the utility model is to provide a fixed-length cutting device for non-woven fabric production for automobile roofs, so as to solve the problem that a structure for measuring the length of the non-woven fabric is not provided on the cutting device in the above background art, thus making it inconvenient to cut the non-woven fabric at a fixed length.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A fixed-length cutting device for non-woven fabric production for automobile roofs, including a workbench and support columns. The support columns are fixedly connected to the four corners of the lower side of the workbench. A cutting mechanism is connected to the upper end of the workbench. The cutting mechanism includes a cutting unit and a fixing unit. The cutting unit is arranged at the upper end of the workbench, and the fixing unit is arranged at the outer end of the cutting unit.

[0009] The cutting unit includes a strip-shaped frame, a limiting rod, a moving block, a connecting piece, a cutting knife, a pull rod, side plates, a first spring, a round rod and a slider. The strip-shaped frame is arranged at the upper end of the workbench. The limiting rod is fixedly connected to the inner side of the strip-shaped frame. The moving block is connected to the outer end of the limiting rod. The connecting piece is fixedly connected to the lower side of the moving block. The cutting knife is rotatably connected to the lower end of the connecting piece. The pull rod is fixedly connected to the upper side of the moving block. The side plates are fixedly connected to the front and rear sides of the strip-shaped frame. The first spring is connected to the inside of the side plates. The round rod is fixedly connected to the lower end of the first spring. The slider is fixedly connected to the lower end of the round rod.

[0010] Further improvement lies in that a limiting hole is formed in the middle position inside the moving block. The left and right sides of the moving block are slidably connected to the inner side of the strip-shaped frame. The outer side of the limiting rod is slidably connected to the inner side of the limiting hole. Thus, when the moving block moves, it can only slide along the outer side of the limiting rod inside the strip-shaped frame.

[0011] Further improvement lies in that a round groove is formed in the middle position at the lower end inside the side plate. The upper end of the first spring is fixedly connected to the upper end inside the round groove. The outer side of the round rod is slidably connected to the inner side of the round groove. Thus, when the first spring bounces, it can drive the side plate to slide along the outer side of the round rod.

[0012] Further improvement lies in that sliding grooves are symmetrically formed at the front and rear ends of the workbench. The outer side of the slider is slidably connected to the inner side of the sliding groove. Scale lines are engraved on the upper front end of the workbench. Thus, when the strip-shaped frame moves on the workbench, the sliders below its front and rear ends can slide along the inner side of the sliding groove.

[0013] Further improvement lies in that the fixing unit includes a fixing plate, a second spring and a pressing plate. The fixing plate is fixedly connected to the upper ends of the left and right sides of the side plate. The second springs are fixedly connected to the lower side of the fixing plate at equal intervals. The pressing plate is fixedly connected to the lower end of the second spring.

[0014] Further improvement lies in that the lower side of the pressing plate abuts against the upper side of the non-woven fabric on the workbench. Thus, when the pull rod is pressed down to drive the strip-shaped frame and the side plate to move downward, the fixing plate will move downward together until the cutting knife touches the non-woven fabric on the workbench. At this time, the pressing plate also touches the non-woven fabric and the second spring above it is in a compressed state. Thus, when the cutting knife cuts, the pressing plates at its left and right ends can press the non-woven fabric below tightly to ensure the flatness of the cutting part of the non-woven fabric.

[0015] Further improvement lies in that an elastic pad is fixedly connected to the upper side of the workbench, and the elastic pad is made of rubber. Thus, when cutting the non-woven fabric on the workbench, the lower end of the cutting knife will touch the elastic pad on the workbench, playing a role in protecting the cutting knife.

[0016] In summary, the present application discloses a fixed-length cutting device for producing non-woven fabrics for automobile roofs.

[0017] In this technical solution, after placing the non-woven fabric to be cut on the workbench, slide the slider along the inner side of the chute, move the cutting knife to the length where the non-woven fabric is to be cut according to the scale line, and then the non-woven fabric can be cut to a fixed length as required.

[0018] Furthermore, when the pressing rod drives the strip-shaped frame and the side plate to move downward, the fixing plate will move downward together until the cutting knife touches the non-woven fabric on the workbench. At this time, the pressing plate also touches the non-woven fabric and the second spring above it is in a compressed state. Therefore, when the cutting knife cuts, the pressing plates at its left and right ends can press the non-woven fabric below to ensure the flatness of the cut part of the non-woven fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the upper end structure of the workbench of the present utility model;

[0021] Figure 3 is a schematic diagram of the internal structure of the side plate of the present utility model;

[0022] Figure 4 is a schematic diagram of the structure at the strip-shaped frame of the present utility model.

[0023] In the figure: 1, workbench; 2, support column; 301, strip-shaped frame; 302, limiting rod; 303, moving block; 304, connecting piece; 305, cutting knife; 306, pull rod; 307, side plate; 308, first spring; 309, round rod; 310, slider; 401, fixing plate; 402, second spring; 403, pressing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model provides a technical solution: Embodiment

[0026] A fixed-length cutting device for producing non-woven fabrics for automobile roofs, including a workbench 1 and support columns 2. The support columns 2 are fixedly connected to the four corners of the lower side of the workbench 1. A cutting mechanism is connected to the upper end of the workbench 1. The cutting mechanism includes a cutting unit and a fixing unit. The cutting unit is arranged at the upper end of the workbench 1, and the fixing unit is arranged at the outer end of the cutting unit.

[0027] The cutting unit includes a strip-shaped frame 301, a limiting rod 302, a moving block 303, a connecting piece 304, a cutting knife 305, a pull rod 306, side plates 307, a first spring 308, a round rod 309 and a slider 310. The strip-shaped frame 301 is arranged at the upper end of the workbench 1. The limiting rod 302 is fixedly connected to the inner side of the strip-shaped frame 301. The moving block 303 is connected to the outer end of the limiting rod 302. The connecting piece 304 is fixedly connected to the lower side of the moving block 303. The cutting knife 305 is rotatably connected to the lower end of the connecting piece 304. A limiting hole is opened at the middle position inside the moving block 303. The left and right sides of the moving block 303 are slidably connected to the inner side of the strip-shaped frame 301. The outer side of the limiting rod 302 is slidably connected to the inner side of the limiting hole. Thus, when the moving block 303 moves, it can only slide along the outer side of the limiting rod 302 inside the strip-shaped frame 301, which plays a role in limiting the movement of the moving block 303 and also plays a role in limiting the movement of the cutting knife 305 at the lower end.

[0028] The pull rod 306 is fixedly connected to the upper side of the moving block 303. The side plates 307 are fixedly connected to the front and rear sides of the strip-shaped frame 301. The first spring 308 is connected inside the side plates 307. The round rod 309 is fixedly connected to the lower end of the first spring 308. The slider 310 is fixedly connected to the lower end of the round rod 309. A round groove is opened at the middle position of the lower end inside the side plates 307. The upper end of the first spring 308 is fixedly connected to the upper end of the inner side of the round groove. The outer side of the round rod 309 is slidably connected to the inner side of the round groove. Thus, when the first spring 308 bounces, it can drive the side plates 307 to slide along the outer side of the round rod 309, which plays a role in limiting the movement of the side plates 307.

[0029] Chute grooves are symmetrically opened at the front and rear ends of the workbench 1. The outer side of the slider 310 is slidably connected to the inner side of the chute grooves. Scale lines are engraved on the upper front end of the workbench 1. Thus, when the strip-shaped frame 301 moves on the workbench 1, the sliders 310 below the front and rear ends thereof can slide along the inner side of the chute grooves, which plays a role in limiting the movement of the strip-shaped frame 301. Embodiment

[0030] On the basis of the first embodiment: The fixing unit includes a fixing plate 401, a second spring 402, and a pressing plate 403. The fixing plate 401 is fixedly connected to the upper ends of the left and right sides of the side plate 307. The second springs 402 are fixedly connected to the lower side of the fixing plate 401 at equal intervals. The pressing plate 403 is fixedly connected to the lower ends of the second springs 402. The lower side of the pressing plate 403 abuts against the upper side of the non-woven fabric on the workbench 1. Thus, when the pressing rod 306 drives the strip-shaped frame 301 and the side plate 307 to move downward, the fixing plate 401 will move downward together until the cutting knife 305 contacts the non-woven fabric on the workbench 1. At this time, the pressing plate 403 also contacts the non-woven fabric and the second spring 402 above it is in a compressed state. Thus, when the cutting knife 305 performs cutting, the pressing plates 403 at its left and right ends can press the non-woven fabric below to ensure the flatness of the cut of the non-woven fabric. Embodiment

[0031] On the basis of the first embodiment: An elastic pad is fixedly connected to the upper side of the workbench 1, and the elastic pad is made of rubber. Thus, when cutting the non-woven fabric on the workbench 1, the lower end of the cutting knife 305 will contact the elastic pad on the workbench 1, which plays a role in protecting the cutting knife 305.

[0032] Working principle: When cutting the non-woven fabric of the car roof, first place the non-woven fabric to be cut on the workbench 1, then slide the slider 310 along the inner side of the chute to drive the cutting knife 305 to move to the non-woven fabric cutting position. Then hold the pull rod 306 and press it downward to drive the lower cutting knife 305 to move downward until the cutting knife 305 moves onto the non-woven fabric. At the same time, the pressing plate 403 moves to the upper end of the non-woven fabric to press the non-woven fabric at the left and right ends of the cutting knife 305. Then slide the moving block 303 back and forth along the outer side of the limiting rod 302 to drive the lower cutting knife 305 to move on the non-woven fabric to cut the non-woven fabric.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A fixed-length cutting device for producing automobile ceiling nonwoven fabrics, comprising a workbench (1) and a support column (2), wherein the support column (2) is fixedly connected to the four corners of the lower side of the workbench (1), characterized in that: The upper end of the workbench (1) is connected to a cutting mechanism, the cutting mechanism comprising a cutting unit and a fixing unit, the cutting unit being arranged at the upper end of the workbench (1), and the fixing unit being arranged at the outer end of the cutting unit; The cutting unit comprises a bar frame (301), a limiting rod (302), a moving block (303), a connecting piece (304), a cutting knife (305), a pull rod (306), a side plate (307), a first spring (308), a round rod (309) and a sliding block (310), wherein the bar frame (301) is arranged at the upper end of the workbench (1), the limiting rod (302) is fixedly connected to the inner side of the bar frame (301), the moving block (303) is connected to the outer end of the limiting rod (302), and the connecting piece (310) is connected to the outer end of the limiting rod (302). 04) is fixedly connected to the lower side of the moving block (303), the cutting knife (305) is rotatably connected to the lower end of the connecting piece (304), the pull rod (306) is fixedly connected to the upper side of the moving block (303), the side plate (307) is fixedly connected to the front and rear sides of the bar frame (301), the first spring (308) is connected to the inside of the side plate (307), the round rod (309) is fixedly connected to the lower end of the first spring (308), and the slider (310) is fixedly connected to the lower end of the round rod (309).

2. The fixed-length cutting device for producing automobile ceiling nonwoven fabrics according to claim 1, characterized in that: A limiting hole is provided in the middle of the moving block (303), the left and right sides of the moving block (303) are slidably connected to the inner side of the bar frame (301), and the outer side of the limiting rod (302) is slidably connected to the inner side of the limiting hole.

3. The fixed-length cutting device for producing automobile ceiling nonwoven fabrics according to claim 1, characterized in that: A circular groove is provided in the middle of the lower end of the side plate (307), the upper end of the first spring (308) is fixedly connected to the inner upper end of the circular groove, and the outer side of the round rod (309) is slidably connected to the inner side of the circular groove.

4. The fixed-length cutting device for producing automobile ceiling nonwoven fabrics according to claim 1, characterized in that: The workbench (1) has symmetrical sliding grooves at both ends, the outer side of the slider (310) is slidably connected to the inner side of the sliding groove, and the upper front end of the workbench (1) is engraved with scale lines.

5. The fixed-length cutting device for producing automobile ceiling nonwoven fabrics according to claim 1, characterized in that: The fixing unit comprises a fixing plate (401), a second spring (402) and a pressure plate (403); the fixing plate (401) is fixedly connected to the upper ends of the left and right sides of the side plate (307); the second spring (402) is fixedly connected to the lower side of the fixing plate (401) at an equidistant distance; and the pressure plate (403) is fixedly connected to the lower end of the second spring (402).

6. The fixed-length cutting device for producing nonwoven fabric for automobile ceiling according to claim 5, characterized in that: The lower side of the pressing plate (403) abuts against the upper side of the non-woven fabric on the workbench (1).

7. The fixed-length cutting device for producing automobile ceiling nonwoven fabrics according to claim 1, characterized in that: An elastic pad is fixedly connected to the upper side of the workbench (1), and the elastic pad is made of rubber.

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