Cotton cutting machine

Abstract

The utility model provides a cotton cutting machine which comprises a machine frame, a main shaft, a crank, a cutter, a driving motor and a connecting piece, the main shaft, the crank, the cutter, the driving motor and the connecting piece are located in the machine frame, the crank is fixedly arranged on the main shaft in a sleeved mode and connected with the cutter through the connecting piece, and when the driving motor drives the main shaft and the crank to rotate, the cutter is driven to move up and down; the connecting piece comprises a first connecting block, a connecting rod, a first fixing block, a transmission rod, a second fixing block and a third fixing block, a first protruding rod and a second protruding rod are arranged on the first connecting block, the first protruding rod and the second protruding rod are arranged in a back-to-back and staggered mode, the first protruding rod is hinged to the crank, one end of the connecting rod is hinged to the second protruding rod, and the first fixing block is fixed to the transmission rod. According to the cotton cutting machine, the rotating main shaft drives the cutter to move up and down through the crank and the connecting piece, the cutter cuts a cotton cushion, the structure is simple, the occupied area is small, and a large amount of space and cost are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing and relates to a cotton cutting machine. Background Art

[0002] When sewing some clothes with cotton pads, it is necessary to cut the cotton pads. At this time, manual cutting is usually adopted, resulting in low production efficiency and errors in manual cutting, making the finished products less beautiful. There are some cotton cutting machines or cotton trimming machines in the prior art. However, most of the currently used cotton trimming machines are suitable for industrial cotton products such as sponge and asbestos. For example, a cotton trimming machine described in Chinese Patent No. "202320671185.3" has the following specific structure: It includes a transport frame. Legs are fixedly connected to the front and rear sides of the bottom of the transport frame. A drive roller is rotatably connected to one side of the transport frame in sequence from left to right. A loading table is fixedly connected to the other side of the transport frame. A controller is fixedly connected to the bottom of the transport frame near the loading table. A bracket is fixedly connected to one side of the top of the transport frame near the drive roller. A cutting mechanism cooperating with the drive roller is arranged on the bracket. The cutting mechanism includes an inlet infrared sensor fixed to the front and rear sides of the transport frame near the loading table. Outlet infrared sensors are fixedly connected to the front and rear sides of the transport frame far from the loading table. A cylinder is fixedly connected to the center of the top of the bracket, and the piston rod of the cylinder is fixedly connected to a tool holder. Electric push rods are fixedly connected to both sides of the top of the bracket, and the piston rods of the electric push rods are fixedly connected to upper positioning seats. Position sensors are embedded in the bottoms of the two groups of upper positioning seats. The above-mentioned cotton trimming machine has a complex structure, a large floor area, high costs, and is difficult to be suitable for the cotton pads required for sewing. At the same time, when cotton cutting is not required during the sewing process, the existing cotton trimming machines are completely idle, wasting factory space and costs. Summary of the Invention

[0003] The purpose of the utility model is to provide a cotton cutting machine with a simple structure and a small floor area for the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A cotton cutting machine includes a frame, as well as a main shaft, a crank, a cutting knife, a driving motor and a connecting member located inside the frame. The crank is sleeved and fixed on the main shaft. The cutting knife is connected to the crank through the connecting member. When the driving motor drives the main shaft and the crank to rotate, the cutting knife is driven to move up and down.

[0005] In the above-mentioned cotton cutting machine, the connecting member includes a first connecting block, a connecting rod, a first fixing block, a transmission rod, a second fixing block and a third fixing block. The first connecting block is provided with a first convex rod and a second convex rod. The first convex rod and the second convex rod face away from each other and are staggeredly arranged. The first convex rod is hinged to the crank. One end of the connecting rod is hinged to the second convex rod. The first fixing block is fixed on the transmission rod. The first fixing block is provided with a connecting column. The other end of the connecting rod is sleeved on the connecting column, so that the connecting rod is hinged to the first fixing block. The second fixing block is installed at the bottom of the transmission rod. The third fixing block is connected to the second fixing block. The cutter is installed on the third fixing block. When the crank rotates, it drives the first connecting block to swing. The swing of the first connecting block drives the first fixing block, the transmission rod, the second fixing block, the third fixing block and the cutter to move up and down through the connecting rod.

[0006] In the above-mentioned cotton cutting machine, it further includes a slider and a sliding seat. The sliding seat is fixed on the machine frame. The sliding seat is provided with a sliding groove. The slider is slidably arranged in the sliding groove. The end of the connecting column is fixed on the slider.

[0007] In the above-mentioned cotton cutting machine, the second fixing block is provided with a fixing convex block. The third fixing block is provided with an installation groove. The third fixing block is provided with a long strip-shaped installation hole. The installation hole is located at the bottom of the installation groove. The fixing convex block is snapped into the installation groove. A first bolt passes through the fixing convex block, the installation hole and is tightly connected with a first nut to fix the second fixing block and the third fixing block. After loosening the first nut, the first bolt can move horizontally in the installation hole.

[0008] In the above-mentioned cotton cutting machine, the bottom of the third fixing block is provided with a plurality of fixing holes uniformly arranged longitudinally. The cutter is provided with a long strip-shaped installation notch. A second bolt passes through the fixing hole and the installation notch and is tightly connected with a second nut to fix the cutter and the third fixing block. After loosening the second nut, the second bolt can move up and down in the installation notch.

[0009] Compared with the prior art, in this cotton cutting machine, the rotating main shaft drives the cutter to move up and down through the crank and the connecting member. The cutter cuts the cotton pad. The structure is simple, the floor area is small, and a large amount of space and cost are saved. The transmission mode and the appearance are similar to those of an ordinary sewing machine. When cotton cutting is not required, the cutter can be used for trimming or cutting fabrics. At the same time, by replacing the cutter with a sewing needle, some sewing work can be carried out, realizing multiple uses, being flexible and convenient to use, greatly improving the utilization rate, and avoiding the situation of idleness. Description of the Drawings

[0010] Figure 1 It is a schematic three-dimensional structure diagram of the present cotton cutting machine.

[0011] Figure 2 It is a schematic three-dimensional structure diagram of a part of the structure in the present cotton cutting machine.

[0012] Figure 3 It is an exploded structure diagram of a part of the structure in the present cotton cutting machine.

[0013] In the figure, 1 is the main shaft; 2 is the crank; 3 is the cutting knife; 31 is the installation notch; 4 is the first connecting block; 41 is the first convex rod; 42 is the second convex rod; 5 is the connecting rod; 6 is the first fixing block; 7 is the transmission rod; 8 is the second fixing block; 81 is the fixing convex block; 9 is the third fixing block; 91 is the installation hole; 92 is the fixing hole; 93 is the installation groove; 10 is the slider; 11 is the sliding seat; 12 is the machine frame; 13 is the seat plate. Specific embodiments

[0014] The following are specific embodiments of the present utility model and in conjunction with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0015] As Figures 1-3 shown, the present cotton cutting machine includes a machine frame 12 and a main shaft 1, a crank 2, a cutting knife 3, a driving motor and a connecting member located inside the machine frame 12. The driving motor drives the main shaft 1 to rotate, the crank 2 is sleeved and fixed on the main shaft 1, and a cutting knife 3 is connected to the crank 2 through a connecting member. When the driving motor drives the main shaft 1 and the crank 2 to rotate, the cutting knife 3 is driven to move up and down. The connecting member includes a first connecting block 4, a connecting rod 5, a first fixing block 6, a transmission rod 7, a second fixing block 8 and a third fixing block 9. The first connecting block 4 is provided with a first convex rod 41 and a second convex rod 42. The first convex rod 41 and the second convex rod 42 face away from each other and are staggered. The first convex rod 41 is hinged to the crank 2, and one end of the connecting rod 5 is hinged to the second convex rod 42. The first fixing block 6 is fixed on the transmission rod 7, and a connecting column is provided on the first fixing block 6. The other end of the connecting rod 5 is sleeved on the connecting column, so that the connecting rod 5 is hinged to the first fixing block 6. The second fixing block 8 is installed at the bottom of the transmission rod 7, the third fixing block 9 is connected to the second fixing block 8, and the cutting knife 3 is installed on the third fixing block 9. When the crank 2 rotates, it drives the first connecting block 4 to swing, and the swing of the first connecting block 4 drives the first fixing block 6, the transmission rod 7, the second fixing block 8, the third fixing block 9, and the cutting knife 3 to move up and down through the connecting rod 5. A seat plate 13 is provided at the bottom of the machine frame 12, and a cotton pad is placed on the seat plate 13. When the cutting knife 3 moves up and down, the cutting of the cotton pad is completed.

[0016] In the above technical solution: It further includes a slider 10 and a sliding seat 11. The sliding seat 11 is fixed on the machine frame 12, a chute is made on the sliding seat 11, the slider 10 is slidably arranged in the chute, and the end of the connecting column is fixed on the slider 10.

[0017] In the above technical solution: A fixing bump 81 is formed on the second fixing block 8, a mounting groove 93 is formed on the third fixing block 9, a long strip-shaped mounting hole 91 is formed on the third fixing block 9, and the mounting hole 91 is located at the bottom of the mounting groove 93. The fixing bump 81 is snapped into the mounting groove 93, and the first bolt passes through the fixing bump 81, the mounting hole 91 and is tightly connected to the first nut, thereby fixing the second fixing block 8 and the third fixing block 9. After loosening the first nut, the first bolt can move horizontally within the mounting hole 91, thereby adjusting the horizontal position of the cutting knife 3.

[0018] In the above technical solution: A plurality of fixing holes 92 are formed at the bottom of the third fixing block 9 and are uniformly arranged longitudinally. In the present utility model, there are 3 fixing holes 92. A long strip-shaped mounting notch 31 is formed on the cutting knife 3. The second bolt passes through the fixing hole 92 and the mounting notch 31 and is tightly connected to the second nut, thereby fixing the cutting knife 3 and the third fixing block 9. After loosening the second nut, the second bolt can move up and down within the mounting notch 31, and at the same time, the second bolt can also change positions within the plurality of fixing holes 92, thereby adjusting the longitudinal position of the cutting knife 3.

[0019] In this cotton cutting machine, the rotating main shaft 1 drives the cutting knife 3 to move up and down through the crank 2 and the connecting member. The cutting knife 3 cuts the cotton pad. The structure is simple, the floor area is small, and a large amount of space and cost are saved; the transmission method and the appearance are similar to those of an ordinary sewing machine. When cotton cutting is not required, the cutting knife 3 can be used for edge cutting or fabric cutting. At the same time, by replacing the cutting knife 3 with a sewing needle, some sewing work can be carried out, realizing multiple uses, being flexible and convenient to use, greatly improving the utilization rate, and avoiding the situation of idleness.

[0020] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0021] Although terms such as main shaft 1; crank 2; cutting knife 3; mounting notch 31; first connecting block 4; first convex rod 41; second convex rod 42; connecting rod 5; first fixing block 6; transmission rod 7; second fixing block 8; fixing bump 81; third fixing block 9; mounting hole 91; fixing hole 92; mounting groove 93; slider 10; sliding seat 11; frame 12; seat plate 13 are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

[0022] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A cotton cutting machine, characterized in that It includes a frame (12) and a main shaft (1), a crank (2), a cutting tool (3), a driving motor and a connecting member located within the frame (12). The crank (2) is sleeved and fixed on the main shaft (1). The cutting tool (3) is connected to the crank (2) through the connecting member. When the driving motor drives the main shaft (1) and the crank (2) to rotate, the cutting tool (3) is driven to move up and down.

2. The cotton cutting machine according to claim 1, characterized in that The connecting member includes a first connecting block (4), a connecting rod (5), a first fixing block (6), a transmission rod (7), a second fixing block (8) and a third fixing block (9). The first connecting block (4) is provided with a first convex rod (41) and a second convex rod (42). The first convex rod (41) and the second convex rod (42) face away from each other and are staggered. The first convex rod (41) is hinged on the crank (2). One end of the connecting rod (5) is hinged on the second convex rod (42). The first fixing block (6) is fixed on the transmission rod (7). The first fixing block (6) is provided with a connecting column. The other end of the connecting rod (5) is sleeved on the connecting column, so that the connecting rod (5) is hinged to the first fixing block (6). The second fixing block (8) is installed at the bottom of the transmission rod (7). The third fixing block (9) is connected to the second fixing block (8). The cutting tool (3) is installed on the third fixing block (9). When the crank (2) rotates, it drives the first connecting block (4) to swing. The swing of the first connecting block (4) drives the first fixing block (6), the transmission rod (7), the second fixing block (8), the third fixing block (9) and the cutting tool (3) to move up and down through the connecting rod (5).

3. The cotton cutting machine according to claim 2, characterized in that It further includes a slider (10) and a sliding seat (11). The sliding seat (11) is fixed on the frame (12). The sliding seat (11) is provided with a sliding groove. The slider (10) is slidably arranged in the sliding groove. The end of the connecting column is fixed on the slider (10).

4. A cotton cutting machine according to claim 2, characterized in that The second fixing block (8) is provided with a fixing convex block (81). The third fixing block (9) is provided with an installation groove (93). The third fixing block (9) is provided with a long strip-shaped installation hole (91). The installation hole (91) is located at the bottom of the installation groove (93). The fixing convex block (81) is snapped into the installation groove (93). A first bolt passes through the fixing convex block (81), the installation hole (91) and is tightly connected to a first nut to fix the second fixing block (8) and the third fixing block (9). After loosening the first nut, the first bolt can move horizontally in the installation hole (91).

5. The cotton cutting machine according to claim 2, characterized in that A plurality of fixing holes (92) which are longitudinally and evenly arranged are formed at the bottom of the third fixing block (9). A strip-shaped mounting notch (31) is formed on the cutting tool (3). The second bolt passes through the fixing hole (92) and the mounting notch (31) and is tightly connected with the second nut, so as to fix the cutting tool (3) and the third fixing block (9). After loosening the second nut, the second bolt can move up and down in the mounting notch (31).

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