Automatic sample cutting machine

Abstract

The utility model relates to the technical field of plastic sample cutting, in particular to an automatic sample cutting machine which comprises a machine body, sliding grooves and locking blocks are arranged in the machine body, the two sliding grooves are both formed in a moving block, and the two locking blocks are arranged in the two sliding grooves in a sliding and sleeved mode respectively. The cutting knife is arranged at the lower end of the moving block, the two locking blocks move relatively to clamp and limit the cutting knife, and the cutting groove is formed in the machine body; and the driving mechanism is arranged in the moving block and is used for driving the two locking blocks. The output ends of the telescopic rods are controlled to retract inwards, the upper ends of the two deflection rods move close to each other, the lower ends of the two deflection rods move away from each other in the opposite directions, at the moment, the lower ends of the two deflection rods drive the locking blocks to move through the second connecting rods, the two locking blocks move in the opposite directions, and then clamping limiting of the upper end of the cutting knife is relieved; and the cutting knife can still be detached without an external tool.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic sample cutting, in particular to an automatic sample cutting machine. Background Art

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer. Plastic packaging and plastic packaging products occupy an increasingly large share in the market and have been widely used in food, medicine, chemical and other fields.

[0003] The existing technology mostly adopts a protective film cutting machine disclosed in the announcement number CN206359007U. This technology includes a chassis and a workbench. A driving motor and a suction machine are installed inside the chassis. The output end of the lifting motor is connected to a lifting rod, and a cutter is installed at the bottom end of the lifting rod. This technology can realize automatic film placement by installing a stepper motor on one side of the protective film bracket, and can automatically drive the cutter to cut the protective film by installing a lifting motor on the frame. The degree of automation is high, but the above technology still has problems during use due to structural limitations:

[0004] When cutting plastic film, the cutting knife is driven to move downward to cut the plastic film. After long-term use, the cutting knife is severely worn and needs to be replaced in time. However, in the existing devices and the above-mentioned technology, the cutting knife is mostly fixed by bolts. Therefore, when replacing the cutting knife, it is necessary to use an external tool to rotate the bolt to complete the disassembly of the cutting knife. At this time, if the external tool is missing, the cutting knife cannot be disassembled, which is not conducive to the rapid disassembly of the cutting knife. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that a cutting knife cannot be disassembled when an external tool is lacking, and proposes an automatic sample cutting machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An automatic cutting machine comprises a machine body, wherein the machine body is provided with:

[0008] A cylinder and a moving block, wherein the cylinder is fixedly mounted on the machine body, and the moving block is fixedly connected to the output end of the cylinder;

[0009] A slide groove and a locking block, wherein the two slide grooves are both provided on the moving block, and the two locking blocks are respectively slidably sleeved in the two slide grooves;

[0010] A cutting knife and a cutting groove, wherein the cutting knife is arranged at the lower end of the moving block, and the two locking blocks are relatively moved to clamp and limit the cutting knife, and the cutting groove is provided on the machine body, and the cutting knife and the cutting groove are used in conjunction with each other to cut plastic film;

[0011] The driving mechanism is arranged in the moving block and is used for driving the two locking blocks.

[0012] Preferably, a rotating shaft is rotatably mounted on the machine body, and the rotating shaft is used to sleeve the plastic film.

[0013] Preferably, the driving mechanism comprises:

[0014] A deflection rod and a telescopic rod, wherein the two deflection rods are both arranged in the moving block, and the two ends of the telescopic rod are respectively arranged at the upper ends of the two deflection rods;

[0015] A vertical cylinder and a sliding ring, wherein the vertical cylinder is integrally formed in the moving block, and the sliding ring is slidably sleeved on the vertical cylinder;

[0016] A first connecting rod and a second connecting rod, wherein the first connecting rod is arranged on the sliding ring, the first connecting rod is connected to the deflection rod, the second connecting rod is arranged on the deflection rod, and the second connecting rod is connected to the locking block.

[0017] Preferably, the two deflection rods are both rotatably connected to the moving block, and both ends of the telescopic rod are respectively connected to the pins at the upper ends of the two deflection rods.

[0018] Preferably, one end of the first connecting rod is connected to the pin shaft of the sliding ring, and the other end of the first connecting rod is connected to the pin shaft of the middle end of the deflection rod.

[0019] Preferably, the second connecting rod is connected to a pin shaft at the lower end of the deflection rod, and the second connecting rod is connected to a pin shaft at the upper end of the locking block.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] 1. The utility model controls the output end of the telescopic rod to retract inward, so that the upper ends of the two deflection rods move relatively close to each other, while the lower ends of the two deflection rods move away from each other in the opposite direction. At this time, the lower ends of the two deflection rods drive the locking blocks to move through the second connecting rod, so that the two locking blocks move in the opposite direction, thereby releasing the clamping limit at the upper end of the cutting knife, preventing the cutting knife from being disassembled without an external tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of an automatic sample cutting machine proposed by the utility model;

[0023] Figure 2A cross-sectional schematic diagram of an automatic sample cutting machine proposed by the utility model;

[0024] Figure 3 For the utility model Figure 2 A magnified schematic diagram of part A;

[0025] Figure 4 The utility model is a schematic diagram of the deflection rod structure of an automatic sample cutting machine.

[0026] In the figure: 1, machine body; 2, cylinder; 3, moving block; 4, slide groove; 5, locking block; 6, cutting knife; 7, cutting groove; 8, rotating shaft; 9, deflection rod; 10, telescopic rod; 11, vertical cylinder; 12, sliding ring; 13, first connecting rod; 14, second connecting rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-Figure 4 , an automatic cutting machine, comprising a body 1, in which the following components are arranged:

[0029] Cylinder 2 and moving block 3, cylinder 2 is fixedly mounted on the machine body 1, and moving block 3 is fixedly connected to the output end of cylinder 2; by starting cylinder 2, the output end of cylinder 2 drives moving block 3 to move downward;

[0030] The two slide grooves 4 and the locking block 5 are both provided on the moving block 3, and the two locking blocks 5 are respectively slidably sleeved in the two slide grooves 4;

[0031] The cutting knife 6 and the cutting groove 7 are provided at the lower end of the moving block 3. The two locking blocks 5 move relative to each other to clamp and limit the cutting knife 6. The cutting groove 7 is provided on the machine body 1. The cutting knife 6 and the cutting groove 7 are used to cut plastic film.

[0032] After the cutting knife 6 completes the clamping and limiting, the cylinder 2 is used to drive the cutting knife 6 to move downward, so that the plastic film is cut under the cooperation of the cutting knife 6 and the cutting groove 7.

[0033] The driving mechanism is arranged in the moving block 3 and is used to drive the two locking blocks 5 .

[0034] A rotating shaft 8 is rotatably mounted on the machine body 1 . The rotating shaft 8 is used to cover the plastic film. An external motor can be fixedly mounted on the rotating shaft 8 . The rotating shaft 8 is driven to rotate by the external motor to release the plastic film.

[0035] The driving mechanism includes:

[0036] A deflection rod 9 and a telescopic rod 10, wherein the two deflection rods 9 are both arranged in the moving block 3, and the two ends of the telescopic rod 10 are respectively arranged at the upper ends of the two deflection rods 9;

[0037] A vertical cylinder 11 and a sliding ring 12, wherein the vertical cylinder 11 is integrally formed in the moving block 3, and the sliding ring 12 is slidably sleeved on the vertical cylinder 11;

[0038] A first connecting rod 13 and a second connecting rod 14 , wherein the first connecting rod 13 is disposed on the sliding ring 12 , and is connected to the deflection rod 9 , and the second connecting rod 14 is disposed on the deflection rod 9 , and is connected to the locking block 5 .

[0039] When the output end of the telescopic rod 10 is extended, the lower ends of the two deflection rods 9 are moved relatively close to each other, and the lower ends of the deflection rods 9 drive the locking block 5 to move through the second connecting rod 14, so that the two locking blocks 5 clamp and limit the upper end of the cutting knife 6;

[0040] As attached Figure 3 As shown, the deflection rod 9 is approximately an F-shaped structure, the two deflection rods 9 are both rotatably connected to the moving block 3, and the two ends of the telescopic rod 10 are respectively connected to the upper ends of the two deflection rods 9 with pins.

[0041] One end of the first connecting rod 13 is connected to the pin of the sliding ring 12, and the other end of the first connecting rod 13 is connected to the pin of the middle end of the deflection rod 9. Figure 2 As shown, the connection point between the deflection rod 9 and the moving block 3 is located below the connection point between the first connecting rod 13 and the middle end of the deflection rod 9;

[0042] The second connecting rod 14 is pin-connected to the lower end of the deflection rod 9 , and the second connecting rod 14 is pin-connected to the upper end of the locking block 5 .

[0043] When the output end of the telescopic rod 10 is retracted, the lower ends of the two deflection rods 9 move away from each other in the opposite direction, so that the two locking blocks 5 move in the opposite direction to release the clamping limit of the cutting knife 6.

[0044] The functional principle of the utility model can be explained through the following operation modes:

[0045] First, the upper end of the cutting knife 6 is placed at the middle end of the two locking blocks 5, and the telescopic rod 10 is started, and the output end of the telescopic rod 10 extends outward, thereby expanding the distance between the upper ends of the two deflection rods 9, as shown in the attached Figure 2 and attached Figure 3 As shown, the deflection rod 9 is deflected at the connection point with the moving block 3, so that the upper ends of the two deflection rods 9 move away from each other in opposite directions, while the lower ends of the two deflection rods 9 move closer to each other;

[0046] The upper ends of the two deflection rods 9 drive the sliding ring 12 through the first connecting rod 13, allowing the sliding ring 12 to move upward in the vertical cylinder 11. At the same time, the lower ends of the two deflection rods 9 drive the locking block 5 through the second connecting rod 14, allowing the two locking blocks 5 to slide relatively in the slide groove 4 and clamp the upper end of the cutting knife 6 to limit the position.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic cutting machine, comprising a machine body (1), characterized in that: The machine body (1) is provided with: A cylinder (2) and a moving block (3), wherein the cylinder (2) is fixedly mounted on the machine body (1), and the moving block (3) is fixedly connected to the output end of the cylinder (2); A slide groove (4) and a locking block (5), wherein the two slide grooves (4) are both provided on the moving block (3), and the two locking blocks (5) are respectively slidably sleeved in the two slide grooves (4); A cutting knife (6) and a cutting groove (7), wherein the cutting knife (6) is arranged at the lower end of the moving block (3), the two locking blocks (5) move relative to each other to clamp and limit the cutting knife (6), the cutting groove (7) is provided on the machine body (1), and the cutting knife (6) and the cutting groove (7) cooperate to be used for cutting plastic film; A driving mechanism is provided in the moving block (3) and is used to drive the two locking blocks (5).

2. The automatic cutting machine according to claim 1, characterized in that: A rotating shaft (8) is rotatably mounted on the machine body (1), and the rotating shaft (8) is used to sleeve a plastic film.

3. The automatic cutting machine according to claim 1, characterized in that: The driving mechanism comprises: A deflection rod (9) and a telescopic rod (10), wherein the two deflection rods (9) are both arranged in the moving block (3), and the two ends of the telescopic rod (10) are respectively arranged at the upper ends of the two deflection rods (9); A vertical cylinder (11) and a sliding ring (12), wherein the vertical cylinder (11) is integrally formed in the moving block (3), and the sliding ring (12) is slidably sleeved on the vertical cylinder (11); A first connecting rod (13) and a second connecting rod (14), wherein the first connecting rod (13) is arranged on the sliding ring (12), the first connecting rod (13) is connected to the deflection rod (9), the second connecting rod (14) is arranged on the deflection rod (9), and the second connecting rod (14) is connected to the locking block (5).

4. The automatic cutting machine according to claim 3, characterized in that: The two deflection rods (9) are both rotatably connected to the moving block (3), and the two ends of the telescopic rod (10) are respectively connected to the upper end pins of the two deflection rods (9).

5. The automatic cutting machine according to claim 3, characterized in that: One end of the first connecting rod (13) is connected to the sliding ring (12) by a pin shaft, and the other end of the first connecting rod (13) is connected to the middle end pin shaft of the deflection rod (9).

6. The automatic cutting machine according to claim 3, characterized in that: The second connecting rod (14) is pin-connected to the lower end of the deflection rod (9), and the second connecting rod (14) is pin-connected to the upper end of the locking block (5).

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