Cutting device, cutting system and cutting process

Abstract

Disclosed in the present invention is a cutting device, comprising a computer-controlled tubing cutting machine. The computer-controlled tubing cutting machine comprises a feeding mechanism and a cutting mechanism, wherein the cutting mechanism is connected to a linkage mechanism; the linkage mechanism comprises a compression spring piece and a cutter holder, which is internally provided with a pressing assembly and a cutter; during operation, by means of the feeding mechanism, tubing to be cut is fed to a position under the lower surface of the compression spring piece, and is then fed to a position under the pressing assembly, and when said tubing reaches a preset cutting length, the computer-controlled tubing cutting machine controls the feeding mechanism to stop feeding, and the pressing assembly and the cutter simultaneously descend to complete one instance of cutting. Further disclosed in the present invention are a cutting system comprising the cutting device and a cutting process using the cutting device for cutting. By means of additionally providing the linkage mechanism behind the computer-controlled tubing cutting machine, the cutting device provided in the present invention can cut soft and elastic tubing, and enables cutting lengths with high precision and cut end faces with good flatness.

Description

A cutting device, cutting system and cutting process Technical Field

[0001] This invention relates to the field of cutting device technology, and more particularly to a cutting device, cutting system and cutting process. Background Technology

[0002] There are many types of computer-controlled pipe cutting machines on the market, but most of them are suitable for cutting pipes with relatively hard and inelastic materials, such as heat shrink tubing, yellow wax tubing, Teflon tubing, fiberglass tubing, insulating sleeves, PVC sleeves, and electrical wires.

[0003] However, for relatively soft and elastic tube materials, such as silicone tubes with a wall thickness of less than 0.5mm, if existing computer tube cutting machines are used for cutting, there will be problems such as large cutting length errors, the cutting end face not being perpendicular to the tube diameter, and the larger the tube diameter, the greater the slope of the cutting end face. Therefore, it is difficult to meet the requirements of high precision and high efficiency cutting. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a cutting device that, by adding a linkage mechanism after the computer pipe cutting machine, can cut soft and elastic pipes with high cutting length accuracy and good straightness of the cutting end face.

[0005] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0006] A cutting device includes a computer-controlled pipe cutter. The computer-controlled pipe cutter includes a feeding mechanism and a cutting mechanism. The cutting mechanism is connected to a linkage mechanism. The linkage mechanism includes a pressure spring and a blade holder. The blade holder is provided with a clamping component and a cutter. During operation, when the pipe to be cut enters the lower surface of the pressure spring through the feeding mechanism and then enters the clamping component to a preset cutting length, the computer-controlled pipe cutter controls the feeding mechanism to stop conveying. The clamping component and the cutter simultaneously descend to complete one cut.

[0007] According to one aspect of the present invention, the feeding mechanism includes a base plate, on which a first guide rod and a second guide rod are provided, and an upper feeding roller and a lower feeding roller are mounted on the base plate.

[0008] According to one aspect of the invention, the upper plane of the compression spring is connected to the first guide rod and the second guide rod, and the distance between the lower surface of the compression spring and the upper surface of the base plate is greater than the wall thickness of the pipe to be cut.

[0009] According to one aspect of the invention, the distance between the lower surface of the compression spring and the upper surface of the base plate is 2 to 3 times the wall thickness of the pipe to be cut.

[0010] According to one aspect of the invention, the lower surface of the compression spring and the upper surface of the base plate are provided with a Teflon coating.

[0011] According to one aspect of the invention, the clamping assembly includes a clamping pin, a clamping block, and a compression spring, wherein the bottom end of the clamping pin is connected to the clamping block, and the compression spring is sleeved on the clamping pin.

[0012] According to one aspect of the invention, the distance between the lower surface of the pressure block and the upper surface of the base plate is greater than the wall thickness of the pipe to be cut.

[0013] According to one aspect of the invention, the distance between the lower surface of the pressure block and the upper surface of the base plate is 2 to 3 times the wall thickness of the pipe to be cut.

[0014] According to one aspect of the invention, the cutting edge of the cutter is higher than the lower surface of the pressure block, and the vertical distance between the cutting edge of the cutter and the lower surface of the pressure block is 1 to 3 times the wall thickness of the pipe to be cut.

[0015] According to one aspect of the invention, the cutting mechanism includes a blade holder base, the blade holder being connected to the blade holder base.

[0016] A cutting system, the cutting system including the cutting device.

[0017] A cutting process, wherein the cutting process uses the cutting device to perform the cutting.

[0018] According to one aspect of the present invention, the cutting process includes the following steps: the tube to be cut is kept flattened until it enters the cutter after passing through the feeding mechanism.

[0019] According to one aspect of the present invention, the above-described cutting device is used in the cutting of soft and elastic tubes.

[0020] Advantages of this invention: A cutting device includes a computer-controlled tube cutter. The computer-controlled tube cutter includes a feeding mechanism and a cutting mechanism. The cutting mechanism includes a blade holder, which is connected to a linkage mechanism. The linkage mechanism includes a pressure spring and a blade holder. The blade holder contains a clamping assembly and a cutter. During operation, after the tube to be cut passes through the feeding mechanism, it enters the lower surface of the pressure spring and then enters the clamping assembly to a preset cutting length. At this point, the computer-controlled tube cutter controls the feeding mechanism to stop conveying. The clamping assembly and the cutter simultaneously descend to complete one cut. Therefore, the tube to be cut remains flattened after passing through the feeding mechanism and before entering the cutter. This allows for the cutting of soft and elastic tubes, such as thin-walled silicone tubes with a wall thickness of less than 0.4 mm, a tube diameter of up to 10 mm, and a Shore hardness of 30A. The cutting length accuracy is high, and the straightness of the cut end face is good. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a structural diagram of the highest position of the cutter raised in the cutting device of the present invention;

[0023] Figure 2 is a top view of the highest position of the cutter raised in the cutting device of the present invention;

[0024] Figure 3 is a structural diagram of the cutting device of the present invention, showing the lowest position where the cutter cuts the pipe to be cut.

[0025] In Figures 1-3, 1 is the base plate; 2 is the pipe to be cut; 3 is the first guide rod; 4 is the upper feeding roller; 5 is the lower feeding roller; 6 is the compression spring; 7 is the knife holder; 8 is the pressure block pin; 9 is the pressure block; 10 is the compression spring; 11 is the cutter; 12 is the linkage mechanism; 13 is the second guide rod; 14 is the knife holder seat; 15 is the first bolt; and 16 is the second bolt. Detailed Implementation

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] As shown in Figures 1-3, a cutting device includes a computer-controlled pipe cutter. The computer-controlled pipe cutter includes a feeding mechanism and a cutting mechanism. The cutting mechanism includes a blade holder 14 connected to a linkage mechanism 12. The linkage mechanism 12 includes a pressure spring 6 and a blade holder 7. The blade holder 7 has a pin hole and a cutting blade 11. A clamping assembly is located in the pin hole. Both the pressure spring 6 and the clamping assembly are used to flatten the pipe piece 2 to be cut. During operation, the pipe piece 2 passes through the feeding mechanism and enters the lower surface of the pressure spring 6, then enters the clamping assembly to a preset cutting length. At this point, the computer-controlled pipe cutter controls the feeding mechanism to stop conveying, and the clamping assembly and the cutting blade 11 simultaneously descend to complete one cut. After one cut is completed, the microcomputer control program of the computer-controlled pipe cutter automatically controls the linkage mechanism 12 to start moving upwards, and the feeding mechanism conveys the pipe piece 2 to be cut again, thus repeating the above operation.

[0031] In practical applications, the feeding mechanism is used to ensure the accurate delivery of the pipe fitting 2 to be cut. Specifically, the feeding mechanism includes a base plate 1, a first guide rod 3, a second guide rod 13, an upper feeding roller 4, and a lower feeding roller 5. The base plate 1 serves as a stable support structure. The first guide rod 3 and the second guide rod 13 are mounted on the base plate 1, and together they guide the pipe fitting 2 to be cut into the area of ​​the upper feeding roller 4 and the lower feeding roller 5 mounted on the base plate 1. During operation, the power is turned on, and the cutting length, feeding speed, and the distance between the first guide rod 3 and the second guide rod 13 are set in the microcomputer control program of the computer pipe cutting machine. Usually, the distance between the first guide rod 3 and the second guide rod 13 is set to the diameter of the pipe to be cut 2. Then, the pipe to be cut 2 is placed between the first guide rod 3 and the second guide rod 13 and conveyed by the upper feeding roller 4 and the lower feeding roller 5, thereby pushing the pipe to be cut 2 forward in a flattened state.

[0032] In practical applications, the upper surface of the pressure spring 6 is connected to the first guide rod 3 and the second guide rod 13 by the first bolt 15. The distance between the lower surface of the pressure spring 6 and the upper surface of the base plate 1 is greater than the wall thickness of the tube to be cut 2. Preferably, the distance between the lower surface of the pressure spring 6 and the upper surface of the base plate 1 is 2 to 3 times the wall thickness of the tube to be cut 2. This allows the tube to be cut to immediately enter the lower surface of the pressure spring 6 after being fed out of the upper feeding roller 4 and the lower feeding roller 5. Consequently, the lower surface of the pressure spring 6 can tightly adhere to and flatten the tube to be cut 2, achieving the flattening process of the tube to be cut 2.

[0033] In practical applications, the pipe to be cut 2 will generate static electricity during high-speed operation and be attracted to the running surface and not move forward. Therefore, in order to ensure that the flattened pipe to be cut 2 moves forward smoothly and without adsorption, a Teflon coating is provided on the lower surface of the pressure spring 6 and the upper surface of the base plate 1 to enhance the non-adhesiveness and wear resistance of the surface.

[0034] In practical applications, the clamping assembly includes a clamping pin 8, a clamping block 9, and a compression spring 10. The compression spring 10 is sleeved on the clamping pin 8, and the bottom end of the clamping pin 8 is connected to the clamping block 9. The distance between the lower surface of the clamping block 9 and the upper surface of the base plate 1 is greater than the wall thickness of the pipe to be cut 2. Preferably, the distance between the lower surface of the clamping block 9 and the upper surface of the base plate 1 is 2 to 3 times the wall thickness of the pipe to be cut 2. When the pipe to be cut 2 enters the clamping block 9 to the set cutting length, the upper feeding roller 4 and the lower feeding roller 5 stop conveying the pipe to be cut 2, and the clamping block 9 and the cutter 11 move downwards simultaneously. When the pipe to be cut 2 is clamped by the compression spring 10 and the clamping pin 8, the cutter 11 also begins to cut the pipe to be cut 2, which can improve the flatness and cutting accuracy of the cut end face of the pipe to be cut 2.

[0035] In practical applications, the cutter 11 is fixed inside the cutter holder 7 by the second bolt 16. The cutting edge of the cutter 11 is higher than the lower surface of the pressure block 9. The vertical distance between the cutting edge of the cutter 11 and the lower surface of the pressure block 9 is 1 to 3 times the wall thickness of the pipe to be cut 2. Specifically, it can be adjusted according to the hardness value of the pipe to be cut 2. When the hardness value of the pipe to be cut 2 is high, it can be increased.

[0036] In practical applications, the tool holder 7 and the tool holder base 14 are connected as one unit.

[0037] A cutting system, the cutting system including the cutting device.

[0038] A cutting process, wherein the cutting process uses the cutting device to perform the cutting.

[0039] In practical applications, the cutting process includes the following steps: the pipe to be cut 2 is kept flattened before entering the cutter 11 after passing through the feeding mechanism.

[0040] In practical applications, the cutting device can be used for cutting soft and elastic tubes, such as thin-walled silicone tubes with a wall thickness of less than 0.4 mm, a tube diameter of 10 mm, and a Shore hardness of 30A.

[0041] Advantages of this invention: A cutting device includes a computer-controlled tube cutter. The computer-controlled tube cutter includes a feeding mechanism and a cutting mechanism. The cutting mechanism includes a blade holder, which is connected to a linkage mechanism. The linkage mechanism includes a pressure spring and a blade holder. The blade holder contains a clamping assembly and a cutter. During operation, after the tube to be cut passes through the feeding mechanism, it enters the lower surface of the pressure spring and then enters the clamping assembly to a preset cutting length. At this point, the computer-controlled tube cutter controls the feeding mechanism to stop conveying. The clamping assembly and the cutter simultaneously descend to complete one cut. Therefore, the tube to be cut remains flattened after passing through the feeding mechanism and before entering the cutter. This allows for the cutting of soft and elastic tubes, such as thin-walled silicone tubes with a wall thickness of less than 0.4 mm, a tube diameter of up to 10 mm, and a Shore hardness of 30A. The cutting length accuracy is high, and the straightness of the cut end face is good.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cutting device, comprising a computer-controlled pipe cutter, the computer-controlled pipe cutter including a feeding mechanism and a cutting mechanism, characterized in that, The cutting mechanism is connected to a linkage mechanism, which includes a pressure spring and a blade holder. The blade holder contains a clamping component and a cutter. During operation, when the pipe to be cut enters the lower surface of the pressure spring through the feeding mechanism and then enters the clamping component to the preset cutting length, the computer-controlled pipe cutter controls the feeding mechanism to stop conveying. The clamping component and the cutter then move downwards simultaneously to complete one cut.

2. The cutting device according to claim 1, characterized in that, The feeding mechanism includes a base plate, on which a first guide rod and a second guide rod are provided, and an upper feeding roller and a lower feeding roller are installed on the base plate.

3. A cutting device according to claim 2, characterized in that, The upper surface of the compression spring is connected to the first guide rod and the second guide rod, and the distance between the lower surface of the compression spring and the upper surface of the base plate is greater than the wall thickness of the pipe to be cut.

4. A cutting device according to claim 3, characterized in that, The lower surface of the compression spring and the upper surface of the base plate are coated with Teflon.

5. A cutting device according to claim 3, characterized in that, The clamping assembly includes a clamping pin, a clamping block, and a compression spring. The bottom end of the clamping pin is connected to the clamping block, and the compression spring is sleeved on the clamping pin.

6. A cutting device according to claim 5, characterized in that, The distance between the lower surface of the pressure block and the upper surface of the base plate is greater than the wall thickness of the pipe to be cut.

7. A cutting device according to claim 6, characterized in that, The vertical distance between the cutting edge of the cutter and the lower surface of the pressure block is 1 to 3 times the wall thickness of the pipe to be cut.

8. A cutting system, characterized in that, The cutting system includes the cutting device as described in any one of claims 1 to 7.

9. A cutting process, characterized in that, The cutting process is performed using the cutting device described in any one of claims 1 to 7.

10. A cutting process according to claim 9, characterized in that, The cutting process includes the following steps: the pipe to be cut is kept flattened before entering the cutter through the feeding mechanism.

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