Cutting mechanism with automatic cover turning function

Abstract

The utility model discloses a cutting mechanism with an automatic flipping function, a cutting knife assembly comprises a knife body and a pressing assembly, one side of a flipping frame is provided with a flipping assembly, the flipping assembly comprises a flipping seat, a V-shaped driving piece and a swinging part, two sides of the bottom of the flipping seat are provided with bottom limiting blocks, and two sides of the top of the flipping seat are provided with top limiting blocks. The swing part comprises a first swing part and a second swing part, the two tail ends of the first swing part and the second swing part are fixed to the overturning base through a rotating shaft, the rotating shaft is located between the two top limiting blocks, the head end of the first swing part extends out of the overturning base from the position between the two top limiting blocks and is fixedly connected with the overturning frame, and the head end of the second swing part is located between the two bottom limiting blocks and is fixedly connected with the overturning frame. A tension spring is arranged at the head end of the V-shaped driving piece and extends to the first swinging piece to be fixed, the bottom of the V-shaped driving piece is fixed to the back face of the overturning base through a rotating block, driving blocks are arranged at the two ends of the V-shaped driving piece, and the first swinging piece is located between the two driving blocks. The device has the advantages of being convenient to operate and high in working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, and more specifically, to a cutting mechanism with an automatic cover-turning function. Background Art

[0002] When producing thermoplastic polyurethane materials, the raw materials are first mixed into block sheets, which are then cut into small blocks by a cutting mechanism. Finally, the small blocks are transported to a pulverizer and crushed into fine particles to obtain the initial thermoplastic polyurethane particles.

[0003] The existing cutting mechanism includes a cooling trough and a cutting knife above the cooling trough. After the material in the cooling trough is cooled, the cutting knife is pressed down manually to cut the cooled material. In order to cut the block of plate into a plurality of small blocks at one time, a plurality of cutting knives are usually assembled on a flip frame, and synchronous cutting and synchronous displacement are achieved by flipping the flip frame. The flip frame on the existing cutting mechanism needs to be repeatedly fastened and flipped manually during operation, which is inconvenient to operate and has low work efficiency. At the same time, when manually operating the flip frame, the flip frame is directly fastened, and the blade of the cutting knife will be directly hit on the plate to be cut by the gravity of the flip frame, which is easy to cause damage to the cutting knife and affect the sharpness of its blade. Based on the above problems, the present application proposes a cutting mechanism with an automatic flipping function and better cutting quality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a cutting mechanism which is easy to operate, has high working efficiency and can automatically flip the cover.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting mechanism with an automatic flipping function, comprising a base with a cooling groove, a flip frame hinged on the base, a plurality of cutting knife assemblies arranged on the flip frame, the cutting knife assemblies comprising a knife body and a pressing assembly for driving the knife body to move toward the cooling groove, a flip assembly is arranged on one side of the flip frame, the flip assembly comprises a flip seat, a V-shaped driving member and a swinging part, bottom limit blocks are arranged on both sides of the bottom of the flip seat, top limit blocks are arranged on both sides of the top, and the swinging part It includes a pendulum one and a pendulum two, the two tail ends of the pendulum one and the pendulum two are fixed on the flip seat through a rotating shaft, the rotating shaft is located between the two top limit blocks, the head end of the pendulum one extends from between the two top limit blocks to the outside of the flip seat and is fixedly connected to the flip frame, the head end of the pendulum two is between the two bottom limit blocks, and a tension spring is provided at its head end, the tension spring extends to and is fixed on the pendulum one, the bottom of the V-shaped driving member is fixed to the back of the flip seat by a rotating block, and driving blocks are provided at its two ends, and the pendulum one is located between the two driving blocks.

[0006] The utility model is further configured as follows: a knife body is provided with a knife handle, a spring is sleeved on the knife handle, a slot for inserting the knife handle is provided on the flip frame, the pressing assembly includes a pressing rod and a pressing shaft, a spring is sleeved on the pressing shaft, the pressing shaft is inserted into the slot and conflicts with the knife handle.

[0007] The utility model is further configured as follows: a connecting rod is provided on the pressing rod, and the connecting rod connects the pressing rods on each group of cutting knife assemblies together.

[0008] The utility model is further configured as follows: the top limit block is divided into a left limit block and a right limit block, wherein the height of the right limit block is lower than the height of the left limit block.

[0009] By adopting the above technical solution, the structure of the flip assembly is added, which can automatically close or open the flip frame, reduce manual operation, and help improve work efficiency. At the same time, a pressing assembly structure is added to the cutting knife assembly, so that after the knife body cuts the plate, it can cut again, improving the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 is a partial cross-sectional view of a cutting knife assembly;

[0012] Figure 3 To flip the structural state of the component Figure 1 ;

[0013] Figure 4 To flip the structural state of the component Figure 2 ;

[0014] Figure 5 To flip the structural state of the component Figure 3 ;

[0015] Figure 6 To flip the structural state of the component Figure 4 .

[0016] 1. Base; 10. Cooling trough; 2. Flip frame; 20. Slot; 3. Cutting knife assembly; 30. Knife body; 300. Knife handle; 301. Spring 1; 31. Pressing assembly; 310. Pressing rod; 311. Pressing shaft; 312. Spring 2; 313. Connecting rod; 4. Flipping assembly; 40. Flipping seat; 400. Bottom limit block; 401. Top limit block; 41. V-shaped driving member; 410. Driving block; 42. Swinging part; 420. Pendulum 1; 421. Pendulum 2; 422. Tension spring. DETAILED DESCRIPTION

[0017] Reference Figures 1 to 6 The utility model is further described in detail.

[0018] A cutting mechanism with an automatic flipping function comprises a base 1 with a cooling groove 10, a flip frame 2 is hinged on the base 1, a plurality of cutting knife assemblies 3 are arranged on the flip frame 2, the cutting knife assemblies 3 comprise a knife body 30 and a pressing assembly 31 for driving the knife body 30 to move toward the cooling groove 10, a flip assembly 4 is arranged on one side of the flip frame 2, the flip assembly 4 comprises a flip seat 40, a V-shaped driving member 41 and a swinging part 42, bottom limit blocks 400 are arranged on both sides of the bottom of the flip seat 40, top limit blocks 401 are arranged on both sides of the top, the swinging part 42 comprises a pendulum 1 420 and a pendulum 2 421, the pendulum 1 42 The two tail ends of the first and second swing pieces 421 are fixed on the flip seat 40 through a rotating shaft, and the rotating shaft is located between the two top limit blocks 401. The head end of the swing piece 1 420 extends from between the two top limit blocks 401 to the outside of the flip seat 40 and is fixedly connected to the flip frame 2. The head end of the swing piece 2 421 is between the two bottom limit blocks 400, and a tension spring 422 is provided at its head end, and the tension spring 422 extends to the swing piece 1 420 and is fixed. The bottom of the V-shaped driving member 41 is fixed to the back of the flip seat 40 by a rotating block, and a driving block 410 is provided at both ends, and the swing piece 1 420 is located between the two driving blocks 410. The top limit block 401 is divided into a left limit block and a right limit block, wherein the height of the right limit block is lower than that of the left limit block.

[0019] The knife body 30 is provided with a knife handle 300, and the knife handle 300 is sleeved with a spring 1 301. The flip frame 2 is provided with a slot 20 for inserting the knife handle 300. The pressing assembly 31 includes a pressing rod 310 and a pressing shaft 311. The pressing shaft 311 is sleeved with a spring 2 312. The pressing shaft 311 is inserted into the slot 20 and conflicts with the knife handle 300. The pressing rod 310 is provided with a connecting rod 313, and the connecting rod 313 connects the pressing rods 310 on each set of cutting knife assemblies 3 together.

[0020] Working principle: When the flip frame 2 needs to be buckled, the motor drives the V-shaped driving member 41 to swing clockwise. When it is moving, the driving block 410 will push the pendulum 1 420 to move toward the cooling groove 10, and the pendulum 2 421 will move toward the cooling groove 10. The tension spring 422 is in a stretched state. When the pendulum 1 420 and the pendulum 2 421 are in the state of being attached to the instruction manual, Figure 4 When the state is reached, the restoring force of the tension spring 422 will quickly move the ornament 1 420 and the ornament 2 421 to the state shown in the instruction manual. Figure 5In the state, the pendulum 420 is fixedly connected to the flip frame 2, and at this time, the opened flip frame 2 is buckled in the cooling groove 10. Due to the limiting of the tension spring 422, the pendulum 420 and the right limit block are not in a conflicting state at this time, so that there is still a distance between the knife body 30 on the flip frame 2 and the cooling groove 10, which prevents the knife body 30 from directly hitting the plate when the flip frame 2 is buckled. Subsequently, the flip frame 2 is manually pressed to achieve the initial cutting of the plate, and the pendulum 420 continues to move and conflicts with the right limit block. After the initial cutting is completed, in order to improve the cutting quality, the connecting rod 313 can be pressed again, and the connecting rod 313 presses the pressing rod 310, and the pressing rod 310 drives the pressing shaft 311 to move against the knife handle 300, which plays a role in continuing to drive the knife body 30 to move toward the bottom wall of the cooling groove 10, so that the plate can be cut again to improve the cutting quality. After stopping the force, it is reset by the spring 1 301 and the spring 2 312. At the same time, the flip frame 2 is automatically opened again by the flip assembly 4, which is convenient for the staff to unload the cut plate.

[0021] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A cutting mechanism with automatic cover flipping function, comprising a base with a cooling groove, a flip frame hinged on the base, and a plurality of cutting knife assemblies arranged on the flip frame, characterized in that: The cutting knife assembly includes a knife body and a pressing assembly for driving the knife body to move toward the cooling groove. A flip assembly is provided on one side of the flip frame. The flip assembly includes a flip seat, a V-shaped driving member and a swinging part. Bottom limit blocks are provided on both sides of the bottom of the flip seat, and top limit blocks are provided on both sides of the top. The swinging part includes a pendulum one and a pendulum two. The two tail ends of the pendulum one and the pendulum two are fixed to the flip seat through a rotating shaft, and the rotating shaft is located between the two top limit blocks. The head end of the pendulum one extends from between the two top limit blocks to the outside of the flip seat and is fixedly connected to the flip frame. The head end of the pendulum two is between the two bottom limit blocks, and a tension spring is provided at its head end. The tension spring extends to and is fixed on the pendulum one. The bottom of the V-shaped driving member is fixed to the back of the flip seat by a rotating block, and its two ends are provided with driving blocks. The pendulum one is located between the two driving blocks.

2. The cutting mechanism with automatic cover flipping function according to claim 1, characterized in that: The knife body is provided with a knife handle, the knife handle is sleeved with a spring 1, the flip frame is provided with a slot for inserting the knife handle, the pressing assembly includes a pressing rod and a pressing shaft, the pressing shaft is sleeved with a spring 2, the pressing shaft is inserted into the slot and conflicts with the knife handle.

3. The cutting mechanism with automatic cover flipping function according to claim 2, characterized in that: The pressing rod is provided with a connecting rod, and the connecting rod connects the pressing rods on each group of cutting knife assemblies together.

4. The cutting mechanism with automatic cover flipping function according to claim 1, characterized in that: The top limit block is divided into a left limit block and a right limit block, wherein the height of the right limit block is lower than that of the left limit block.

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