A high-speed pipe cutting device and its pipe cutting method

Abstract

This invention discloses a high-speed tube cutting device and method, including a tube cutting assembly that can cut a suction strip at equal intervals. The tube cutting assembly includes a second power unit; a second tube roll, which is driven by the second power unit to rotate circumferentially. An arcuate groove, capable of partially accommodating the suction strip, is formed on the outer surface of the second tube roll, extending along the axis of the roll. The arcuate groove has an array of arrays arranged at equal angles along the circumference of the second tube roll; and a cutting blade, driven by the second power unit to reciprocate, to cut the suction strip driven by the second tube roll. This invention achieves automatic cutting of the suction strip by securing the suction strip within the arcuate groove of the second tube roll, causing the rotating second tube roll to move the suction strip along its rotation direction. Simultaneously, the cutting blade reciprocates, cutting the suction strip, thus dividing the suction strip into individual suction strips and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, and in particular to a high-speed pipe cutting device and a pipe cutting method thereof. Background Technology

[0002] In the food packaging industry, it is often necessary to attach utensils, such as straws, to the outside of food products for consumers to use. Currently, after straws are produced, multiple straw compartments are usually connected in the form of a straw pack (with easy-tear lines between adjacent compartments). When straws leave the factory, it is sometimes necessary to cut each compartment, but currently this is mainly done manually, which is inefficient. Summary of the Invention

[0003] Therefore, to address the aforementioned shortcomings, the present invention provides a high-speed tube cutting device, including a tube cutting assembly that can cut the suction tube at equal intervals. The tube cutting assembly includes...

[0004] Second power unit;

[0005] The second tube roll, driven by the aforementioned second power device, rotates circumferentially. An arcuate groove, capable of partially accommodating a straw, is formed on the outer surface of the second tube roll. This arcuate groove extends along the axial direction of the second tube roll and is arranged in an array, with the array of arcuate grooves arranged at equal angles along the circumference of the second tube roll.

[0006] The cutting blade is driven to reciprocate by the second power device to cut the suction tube belt driven by the second tube roll.

[0007] This invention achieves automatic cutting of the straw strip by passing it through a second roll of straw, so that the straw is locked in the arc groove of the second roll of straw. A second power device drives the second roll of straw to rotate, so that the straw strip moves along the rotation direction of the second roll of straw. At the same time, the cutting blade reciprocates under the drive of the second power device. The cutting blade cuts once every time the second roll of straw rotates by the angle of the arc groove, so as to divide the straw strip into individual straws and improve work efficiency.

[0008] Furthermore, a guide block is provided on the outer side of the second tube roll. The guide block is in the shape of an arc concentric with the second tube roll near the side of the second tube roll. A stepping channel that can completely accommodate the straw is formed between the inner side of the guide block and the arc groove. The guide block extends from the top of the outer side of the second tube roll along the rotation direction of the second tube roll to the bottom side of the second tube roll.

[0009] The guide block limits the straw belt, ensuring that the straw is always contained within the arc groove of the second roll of straw, so that the straw moves with the second roll of straw without coming off, until the straw moves to the bottom of the second roll of straw.

[0010] Furthermore, the tube cutting device includes a tube feeding assembly, which can drive a suction belt to feed the tube into the tube cutting device. The tube feeding assembly includes...

[0011] First power unit;

[0012] The first tube is driven to rotate around its own circumference by the first power device. An arc groove that can partially accommodate a straw is formed on the outer surface of the first tube. The arc groove extends along the axial direction of the first tube and is provided with an array of arc grooves. The array of arc grooves is arranged at equal angles along the circumference of the first tube.

[0013] A straw inlet slide, which allows the straw to move along its extension direction, has one end in an arc shape concentric with the first roll of straw. This arc-shaped end extends from the top of the first roll of straw along its rotational direction to one side of the first roll of straw. The inner surface of this arc-shaped end forms an inlet channel with an arc groove on the first roll of straw, fully accommodating the straw.

[0014] The tube feeding slide allows the straw belt to move along its extension direction. One end of the tube feeding slide is in the shape of an arc concentric with the second roll of tube. The arc-shaped end of the tube feeding slide and the arc groove on the second roll of tube form a tube feeding channel that can completely accommodate the straw. The arc-shaped end of the tube feeding slide extends from the upper part of one side of the second roll of tube along the rotation direction of the second roll of tube to the top of the second roll of tube.

[0015] Furthermore, the tube feeding assembly also includes a straw buffer hopper, which is located below the first roll of tubes. A detection sensor is provided on one side of the straw buffer hopper to detect the straw level in the straw buffer hopper.

[0016] The entire straw belt passes through the inlet slide and enters the first roll of straw. The arc groove on the first roll of straw can hold the straw. The first power device drives the first roll of straw to rotate, so as to wind the straw belt into the straw buffer bin to buffer a portion of the straw. The straw buffer bin is equipped with a sensor that can detect whether there is a straw in the buffer and control the first power device. The straw belt in the straw buffer bin then enters the second roll of straw through the feeding slide, realizing the automatic feeding of the straw belt.

[0017] Furthermore, the tube cutting device also includes a tube feeding and conveying assembly, which can drive the movement of the straws cut into individual pieces by the tube cutting assembly. The tube feeding and conveying assembly is disposed entirely below the second roll of tubes. The tube feeding and conveying assembly includes a straw mold conveyor. The surface of the conveying part of the straw mold conveyor is provided with an arc groove that can partially accommodate the straw. The arc groove on the straw mold conveyor and the arc groove on the second roll of tubes can form a hole that can completely accommodate the straw.

[0018] Furthermore, the tube feeding assembly includes a guide slide that extends from above the straw mold conveyor along its conveying direction to below the straw mold conveyor.

[0019] Furthermore, the tube cutting device also includes an opening and closing assembly, which is connected to one end of the guide slide located below the straw mold conveyor. Two sets of the opening and closing assembly are symmetrically installed on opposite sides of the straw mold conveyor. The opening and closing assembly can expose the straw for discharge. The opening and closing assembly includes...

[0020] A fifth power unit, which is installed on one side of the aforementioned straw mold conveyor; and

[0021] The baffle is driven by the fifth power device to move linearly in a direction perpendicular to the straw mold conveyor. One side of the baffle is connected to one end of the guide slide located below the straw mold conveyor.

[0022] Furthermore, the high-speed tube cutting equipment also includes a pick-and-place mechanism, which is integrally disposed below the aforementioned opening and closing assembly. This pick-and-place mechanism is located near the surface of the straw mold conveyor corresponding to the surface where the opening and closing assembly is installed, to pick up the straw that has moved to the position of the opening and closing assembly. The pick-and-place mechanism includes...

[0023] Fourth power unit; and

[0024] The negative pressure block is driven to rotate eccentrically by the aforementioned fourth power device. The negative pressure block is provided with an array of arrayed negative pressure blocks, which are equidistantly arranged along the conveying direction of the straw mold conveyor.

[0025] Furthermore, the picking and placing mechanism also includes

[0026] The third power unit; and

[0027] The constant pitch module is connected to the aforementioned third power device, and the aforementioned negative pressure block is connected to the constant pitch module.

[0028] The straws, pulled to the bottom by the second roll of tubing, enter the arc groove on the straw mold conveyor under their own weight. This conveys the individual straws rolled from the second roll. The straw mold conveyor moves the straws along the guide slide to the bottom and feeds them between the baffle and the straw mold conveyor. When the number of straws between the baffle and the straw mold conveyor reaches a preset number, the fourth power unit drives the negative pressure block to swing to a horizontal position close to the straws. Once in position, the fifth power unit drives the baffle to move outward, releasing the straws. The negative pressure block then holds the straws in place. The fourth power unit then drives the negative pressure block to swing downward at a small angle. The third power unit provides power to the equal-pitch module to widen the gap between the negative pressure blocks. The negative pressure block closes, releasing the straws. This method allows for the continuous cutting of multiple straws followed by a single, concentrated delivery, significantly reducing equipment size and cost while increasing production capacity.

[0029] On the other hand, the present invention also provides a pipe cutting method, which uses the aforementioned high-speed pipe cutting equipment, the pipe cutting method comprising:

[0030] The entire straw belt passes through the inlet slide and enters the first roll of straw. The arc groove on the first roll of straw can hold the straw. The first power device drives the first roll of straw to rotate, which drives the straw belt to move so as to wind in the straw buffer bin to buffer a portion of the straw.

[0031] The straw belt in the straw buffer hopper then enters the second roll of straw through the straw feeding slide. The second power device drives the second roll of straw to rotate, causing the straw belt to move in the direction of rotation. At the same time, the second power device drives the cutting blade to reciprocate. Every time the second roll of straw rotates by the angle of the arc groove, the cutting blade makes a cut to cut the straw belt into a single straw.

[0032] The straws that are pulled to the bottom by the second roll of tubing enter the arc groove on the straw mold conveyor under their own weight, so as to transport the individual straws rolled out by the second roll of tubing away.

[0033] The straw mold conveyor moves the straws along the guide slide to the bottom and feeds them between the baffle and the straw mold conveyor. When the number of straws between the baffle and the straw mold conveyor reaches a preset number, the fourth power unit drives the negative pressure block to swing to a horizontal position close to the straw. After it is in position, the fifth power unit drives the baffle to move outward, releasing the straw. The negative pressure block sucks up the straw, and the fourth power unit drives the negative pressure block to swing downward at a small angle. The third power unit provides power to the equal pitch module to widen the gap between the negative pressure blocks. The negative pressure block closes and releases the straw.

[0034] The present invention has the following advantages:

[0035] This invention achieves automatic cutting of the straw strip by passing it through a second roll of straw, so that the straw is locked in the arc groove of the second roll of straw. A second power device drives the second roll of straw to rotate, so that the straw strip moves along the rotation direction of the second roll of straw. At the same time, the cutting blade reciprocates under the drive of the second power device. The cutting blade cuts once every time the second roll of straw rotates by the angle of the arc groove, so as to divide the straw strip into individual straws and improve work efficiency.

[0036] The guide block limits the straw belt, ensuring that the straw is always contained within the arc groove of the second roll of straw, so that the straw moves with the second roll of straw without coming off, until the straw moves to the bottom of the second roll of straw.

[0037] The entire straw belt passes through the inlet slide and enters the first roll of straw. The arc groove on the first roll of straw can hold the straw. The first power device drives the first roll of straw to rotate, so as to wind the straw belt into the straw buffer bin to buffer a portion of the straw. The straw buffer bin is equipped with a sensor that can detect whether there is a straw in the buffer and control the first power device. The straw belt in the straw buffer bin then enters the second roll of straw through the feeding slide, realizing the automatic feeding of the straw belt.

[0038] The straws, driven to the bottom by the second roll of tubing, enter the arc groove on the straw mold conveyor under their own weight, thus conveying the individual straws rolled out by the second roll of tubing. The straw mold conveyor moves the straws along the guide slide to the bottom and is fed between the baffle and the straw mold conveyor. When the number of straws between the baffle and the straw mold conveyor reaches a preset number, the fourth power unit drives the negative pressure block to swing to a horizontal position close to the straws. After it is in position, the fifth power unit drives the baffle to move outward, releasing the straws. The negative pressure block sucks in the straws, and the fourth power unit drives the negative pressure block to swing downward at a small angle. The third power unit provides power to the equal-pitch module to widen the gap between the negative pressure blocks. The negative pressure block closes and releases the straws. This allows for the continuous cutting of multiple straws and their concentrated delivery, greatly reducing the size and cost of the equipment and increasing its production capacity. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the high-speed pipe cutting equipment in Example 1;

[0040] Figure 2 yes Figure 1 A schematic diagram of the cutting blade in the high-speed pipe cutting equipment shown.

[0041] Figure 3 This is a schematic diagram of the high-speed pipe cutting equipment in Example 2;

[0042] Figure 4 yes Figure 3 Side view of the high-speed pipe cutting equipment shown;

[0043] Figure 5 This is a schematic diagram of the high-speed pipe cutting equipment in Example 3.

[0044] Figure 6 yes Figure 5 A bottom view of the suction mold conveyor in the high-speed pipe cutting equipment shown;

[0045] Figure 7 yes Figure 6 A partial structural schematic diagram of the high-speed tube cutting process is shown.

[0046] Figure 8 yes Figure 7 A side view of a portion of the high-speed pipe cutting equipment shown.

[0047] Figure 9 yes Figure 8 The diagram shows the structural schematic of the pick-and-place mechanism in the high-speed pipe cutting equipment. Detailed Implementation

[0048] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0049] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0050] As described in the background section, straws are currently typically packaged in the form of straw strips, where multiple straw compartments are connected together (with tear lines between adjacent compartments). However, when the straws leave the factory, it is sometimes necessary to cut each compartment, but this is currently mainly done manually, which is inefficient.

[0051] Example 1:

[0052] Therefore, in order to solve the above-mentioned technical problems of the prior art, this embodiment provides a high-speed tube cutting device, which includes a tube cutting assembly 200, which can cut the suction tube at equal intervals, such as... Figure 1 , 2As shown, the tube cutting assembly 200 includes

[0053] Second power unit 210;

[0054] The second tube 230 is driven to rotate circumferentially by the aforementioned second power device. An arcuate groove, capable of partially accommodating a straw, is formed on the outer surface of the second tube 230. This arcuate groove extends along the axial direction of the second tube and is arranged in an array, with the array of arcuate grooves arranged at equal angles along the circumference of the second tube 230.

[0055] The cutting blade 250 is driven by the second power device 210 to reciprocate, so as to cut the suction tube belt driven by the second tube roll.

[0056] This invention achieves automatic cutting of the straw strip by passing it through a second roll of straw, so that the straw is locked in the arc groove of the second roll of straw. A second power device drives the second roll of straw to rotate, so that the straw strip moves along the rotation direction of the second roll of straw. At the same time, the cutting blade reciprocates under the drive of the second power device. The cutting blade cuts once every time the second roll of straw rotates by the angle of the arc groove, so as to divide the straw strip into individual straws and improve work efficiency.

[0057] In this embodiment, as Figure 2 As shown, the cutting blade is fixed on the mounting plate 260, which is connected to the eccentric cam via a connecting rod. The second power device can drive the eccentric cam to rotate, thereby realizing the reciprocating motion of the connecting rod away from the end of the eccentric wheel, which in turn drives the cutting blade to extend into the cutting suction membrane and retract to avoid the second roll tube.

[0058] In addition, the tube cutting assembly in this embodiment may also include a cross guide rail, which guides the movement of the cutting blade to improve the movement accuracy of the blade, so that the blade cuts the straw at the same height and angle, thereby improving the cutting accuracy.

[0059] In this embodiment, as Figure 1 As shown, a guide block 240 may also be provided on the outside of the second roll tube. The guide block 240 is in the shape of an arc concentric with the second roll tube near the side of the second roll tube 230. A stepping channel that can completely accommodate the straw is formed between the inner side of the guide block and the arc groove. The guide block extends from the top of the outside of the second roll tube along the rotation direction of the second roll tube to the bottom side of the second roll tube.

[0060] The guide block 240 limits the straw belt so that the straw is always contained in the arc groove of the second roll of straw, so that the straw moves with the second roll of straw without falling off, until the straw moves to the bottom of the second roll of straw.

[0061] Example 2:

[0062] To achieve automatic straw discharge, this embodiment is optimized based on embodiment 1, such as... Figure 3 , 4 As shown, unlike Embodiment 1, the tube cutting device in this embodiment also includes a tube feeding and conveying assembly 300. The tube feeding and conveying assembly 300 can drive the movement of the straws cut into individual pieces by the tube cutting assembly. The tube feeding and conveying assembly 300 is generally arranged below the second roll of tubes. The tube feeding and conveying assembly 300 includes a straw mold conveyor 310. The surface of the conveying part of the straw mold conveyor 310 is provided with an arc groove that can partially accommodate the straw. The arc groove on the straw mold conveyor 310 and the arc groove on the second roll of tubes can form a hole that can completely accommodate the straw.

[0063] The straws, driven to the bottom by the second roll of tubing, enter the arc groove on the straw mold conveyor under their own gravity, so as to transport the individual straws rolled out by the second roll of tubing away, thereby realizing the automatic discharge of straws.

[0064] In this embodiment, the second power device can be a servo motor, which is connected to the second tube roll and the suction mold conveyor via a cam divider. The cam divider is connected to the cam via a right-angle reversing device. The second power unit drives the cam divider to rotate. When the input shaft of the cam divider rotates one revolution, the driven shaft connected to the right-angle reversing device rotates one revolution synchronously. The driven shaft connected to the second roll tube and the straw mold conveyor rotates 18°. The driven shaft connected to the second roll tube and the straw mold conveyor rotates 18° only within 90° of one revolution of the input shaft. When the input shaft rotates the remaining 270°, the driven shaft connected to the second roll tube and the straw mold conveyor does not rotate. The straw mold conveyor can be connected to the second roll tube through a belt pulley transmission mechanism, thereby simultaneously driving the second roll tube and the straw mold conveyor to step and feed the tube. The driven shaft connected to the right-angle reversing device rotates and transmits the rotational power to the eccentric cam through the right-angle reversing device. The eccentric cam drives the connecting rod to swing, which in turn drives the cutting blade to extend into the straw film and retract to avoid the second roll tube.

[0065] In one tube-cutting linkage action, the cutting blade extends into the cutting straw membrane within a 270° rotation powered by the cam divider, and retracts to allow the second roll of tubes to rotate one notch. The second roll of tubes rotates one notch within a certain 90° rotation stroke after the cutting blade retracts, delivering one straw for cutting the membrane and feeding in the next straw that needs to be cut.

[0066] like Figure 4 As shown, in this embodiment, the above-mentioned tube feeding assembly 300 may further include a guide slide 320, which extends from above the straw mold conveyor along its conveying direction to below the straw mold conveyor.

[0067] By setting the guide slide, the end of the guide slide is positioned at a preset position below the straw mold conveyor, thereby guiding the straw to fall from the preset position below the straw conveyor.

[0068] Example 3:

[0069] Since the high-speed straw cutting device in Example 2 cannot achieve directional delivery of straws, and the delivery method in the prior art is mostly a single-cut and single-delivery mode, that is, cutting one straw and delivering one straw, the efficiency is low.

[0070] Therefore, in order to solve the above-mentioned technical problems, this embodiment proposes improvements based on embodiment 2, such as... Figure 6 As shown, the tube cutting device in this embodiment also includes an opening and closing assembly 500. This assembly 500 is connected to one end of the guide slide located below the straw mold conveyor. Two sets of the opening and closing assembly 500 are provided, symmetrically installed on opposite sides of the straw mold conveyor. The opening and closing assembly 500 can expose the straw to allow it to be discharged. The opening and closing assembly includes...

[0071] A fifth power unit 510, which is installed on one side of the aforementioned straw mold conveyor, may be a cylinder; and

[0072] The baffle 520 is driven by the fifth power device 510 to move linearly in a direction perpendicular to the straw mold conveyor. One side of the baffle 520 is connected to one end of the guide slide located below the straw mold conveyor.

[0073] In addition, such as Figure 8 As shown, the high-speed tube cutting device in this embodiment also includes a pick-and-place mechanism 420. This pick-and-place mechanism is disposed entirely below the opening and closing assembly. This mechanism can approach the surface of the straw mold conveyor corresponding to the surface where the opening and closing assembly is installed, to pick up the straw that has moved to the position of the opening and closing assembly. Figure 9 As shown, the picking and placing mechanism 420 includes

[0074] A fourth power unit 424, which may be a servo motor; and

[0075] The negative pressure block 421 is driven to rotate eccentrically by the aforementioned fourth power device 424. The negative pressure block is provided with an array of negative pressure blocks, which are equidistantly arranged along the conveying direction of the straw mold conveyor.

[0076] In this embodiment, the above-mentioned picking and placing mechanism also includes

[0077] A third power unit 422, which may be a servo motor; and

[0078] The constant pitch module 423 is connected to the third power device mentioned above, and the negative pressure block 421 is connected to the constant pitch module.

[0079] The straws, driven to the bottom by the second roll of tubing, enter the arc groove on the straw mold conveyor under their own weight, thus conveying the individual straws rolled out by the second roll of tubing. The straw mold conveyor moves the straws along the guide slide to the bottom and sends them between the baffle and the straw mold conveyor. When the number of straws between the baffle and the straw mold conveyor reaches a preset number, the fourth power unit drives the negative pressure block to swing to a horizontal position close to the straws. After it is in position, the fifth power unit drives the baffle to move outward, releasing the straws. The negative pressure block sucks in the straws, and the fourth power unit drives the negative pressure block to swing downward at a small angle. The third power unit provides power to the equal pitch module to widen the gap between the negative pressure blocks. The negative pressure block closes and releases the straws.

[0080] like Figure 9 As shown, in this embodiment, the third power device 422 is fixedly installed on one side of the equal pitch module 423. This equal pitch module is a device in the prior art that enables components to move linearly along equal distances, allowing the components to be pulled apart or brought together at equal distances. The equal pitch module has a pitch-changing shaft, which is connected to the third power device. The aforementioned negative pressure block is connected to the pitch-changing shaft. Through the rotation of the pitch-changing shaft, the equal distance between multiple negative pressure blocks is achieved. A guide mechanism can also be provided between the negative pressure block and the equal pitch module to regulate the negative pressure. The block's movement is guided by the following: In this embodiment, the equal-pitch module is eccentrically connected to the output shaft of the fourth power device. The fourth power device drives the equal-pitch module to swing. When a pre-cut straw needs to be retrieved, the equal-pitch module first equalizes and contracts the distance, then swings to a horizontal position close to the straw. Once in position, the fifth power device opens to release the straw, and the negative pressure block on the equal-pitch module sucks in the straw. The equal-pitch module swings downwards at a small angle while simultaneously equalizing and widening the distance. The negative pressure block closes, releasing the straw. The straw then passes through... Figure 7The slide 410 shown falls into the subsequent mechanism. In this embodiment, the pick-and-place mechanism, the slide, and the opening and closing components cooperate to form the suction pipe discharge mechanism 400.

[0081] The cut membrane straw is conveyed to the lower end of the opening and closing assembly via the straw mold conveyor. The straw cutting assembly and the straw mold conveyor continuously cut 6 straws and send them to the opening and closing assembly. The fifth power unit opens the baffle to allow the suction cup on the equal pitch module to suck up 6 straws at once. After closing, the straws can be conveyed to the position to wait for the equal pitch module to pick up the material next time.

[0082] This embodiment can cut out multiple straws continuously and then dispense them all at once, which greatly reduces the size and cost of the equipment and increases its production capacity.

[0083] To achieve automatic feeding of the straw belt, such as Figure 5 As shown, the tube cutting device in this embodiment may further include a tube feeding assembly 100, which can drive the suction belt to feed the tube into the tube cutting device, such as... Figure 4 , 7 As shown in Figures 9 and 1, the tube feeding assembly includes...

[0084] First power unit 150, which can be selected as electric roller;

[0085] The first tube 140 is driven to rotate around its own circumference by the first power device 150. An arc groove that can partially accommodate a straw is opened on the outer surface of the first tube. The arc groove extends along the axial direction of the first tube and is provided in an array. The array of arc grooves is arranged at equal angles along the circumference of the first tube 140.

[0086] A straw inlet slide 120 is provided, allowing the straw to move along its extension direction. One end of the inlet slide is an arc shape concentric with the first roll of straw. This arc-shaped end extends from the top of the first roll of straw along its rotation direction to one side of the first roll of straw. The inner surface of this arc-shaped end forms an inlet channel with an arc groove on the first roll of straw, which can completely accommodate the straw.

[0087] The tube feeding slide 111 allows the straw belt to move along its extension direction. One end of the tube feeding slide is in the shape of an arc concentric with the second roll of tube 230. The arc-shaped end of the tube feeding slide and the arc groove on the second roll of tube form a tube feeding channel that can completely accommodate the straw. The arc-shaped end of the tube feeding slide extends from the upper part of one side of the second roll of tube along the rotation direction of the second roll of tube to the top of the second roll of tube.

[0088] Furthermore, the tube feeding assembly also includes a straw buffer hopper 130, which is located below the first tube roll. A detection sensor is provided on one side of the straw buffer hopper to detect the straw level in the straw buffer hopper.

[0089] The entire straw belt passes through the inlet slide and enters the first roll of straw. The arc groove on the first roll of straw can hold the straw. The first power device drives the first roll of straw to rotate, so as to wind the straw belt into the straw buffer bin to buffer a portion of the straw. The straw buffer bin is equipped with a sensor that can detect whether there is a straw in the buffer and control the first power device. The straw belt in the straw buffer bin then enters the second roll of straw through the feeding slide, realizing the automatic feeding of the straw belt.

[0090] Example 4:

[0091] Based on the above embodiments, a pipe cutting method is also provided. This pipe cutting method uses the aforementioned high-speed pipe cutting equipment, and the pipe cutting method includes...

[0092] The entire straw belt passes through the inlet slide and enters the first roll of straw. The arc groove on the first roll of straw can hold the straw. The first power device drives the first roll of straw to rotate, which drives the straw belt to move so as to wind in the straw buffer bin to buffer a portion of the straw.

[0093] The straw belt in the straw buffer hopper then enters the second roll of straw through the straw feeding slide. The second power device drives the second roll of straw to rotate, causing the straw belt to move in the direction of rotation. At the same time, the second power device drives the cutting blade to reciprocate. Every time the second roll of straw rotates by the angle of the arc groove, the cutting blade makes a cut to cut the straw belt into a single straw.

[0094] The straws that are pulled to the bottom by the second roll of tubing enter the arc groove on the straw mold conveyor under their own weight, so as to transport the individual straws rolled out by the second roll of tubing away.

[0095] The straw mold conveyor moves the straws along the guide slide to the bottom and feeds them between the baffle and the straw mold conveyor. When the number of straws between the baffle and the straw mold conveyor reaches a preset number, the fourth power unit drives the negative pressure block to swing to a horizontal position close to the straw. After it is in position, the fifth power unit drives the baffle to move outward, releasing the straw. The negative pressure block sucks up the straw, and the fourth power unit drives the negative pressure block to swing downward at a small angle. The third power unit provides power to the equal pitch module to widen the gap between the negative pressure blocks. The negative pressure block closes and releases the straw.

[0096] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-speed pipe cutting device, characterized in that, Includes a straw-cutting assembly that can cut the straw strip at equal intervals, the straw-cutting assembly including... Second power unit; The second tube is driven to rotate around its own circumference by the second power device. An arc groove that can partially accommodate the straw is opened on the outer surface of the second tube. The arc groove extends along the axial direction of the second tube and is provided with an array of arc grooves. The array of arc grooves is arranged at equal angles along the circumference of the second tube. as well as The cutting blade is driven to reciprocate by the second power device to cut the suction tube belt driven by the second tube roll; The second tube roll has a guide block on its outer side. The guide block is in the shape of an arc concentric with the second tube roll near the side of the second tube roll. The inner side of the guide block and the arc groove form a stepping channel that can completely accommodate the straw. The guide block extends from the top of the outer side of the second tube roll along the rotation direction of the second tube roll to the bottom side of the second tube roll. The tube cutting equipment also includes a tube feeding and conveying assembly, which can drive the movement of the straws cut into individual pieces by the tube cutting assembly. The tube feeding and conveying assembly is generally arranged below the second roll of tubes. The tube feeding and conveying assembly includes a straw mold conveyor. The surface of the conveying part of the straw mold conveyor is provided with an arc groove that can partially accommodate the straw. The arc groove on the straw mold conveyor and the arc groove on the second roll of tubes can form a hole that can completely accommodate the straw. The tube feeding assembly includes a guide slide that extends from above the straw mold conveyor along its conveying direction to below the straw mold conveyor. The tube cutting device also includes an opening and closing assembly, which is connected to one end of the guide slide located below the straw mold conveyor. Two sets of the opening and closing assembly are symmetrically installed on opposite sides of the straw mold conveyor. The opening and closing assembly can expose the straw to allow it to be discharged. The opening and closing assembly includes... The fifth power unit is installed on one side of the aforementioned straw mold conveyor; as well as The baffle is driven by the fifth power device to move linearly in a direction that is horizontal and perpendicular to the straw mold conveyor. One side of the baffle is connected to one end of the guide slide that is located below the straw mold conveyor. The high-speed tube cutting equipment also includes a pick-and-place mechanism, which is integrally positioned below the opening and closing assembly. This mechanism is located near the surface of the straw mold conveyor corresponding to the surface where the opening and closing assembly is installed, to pick up the straw that has moved to the position of the opening and closing assembly. The pick-and-place mechanism includes... Fourth power unit; as well as The negative pressure block is driven to rotate eccentrically by the aforementioned fourth power device. The negative pressure block is provided with an array of negative pressure blocks, which are equidistantly arranged along the conveying direction of the straw mold conveyor.

2. The high-speed pipe cutting equipment according to claim 1, characterized in that, The tube cutting device includes a tube feeding assembly, which can drive a suction belt to feed the tube into the tube cutting device. The tube feeding assembly includes... First power unit; The first tube is driven to rotate around its own circumference by the first power device. An arc groove that can partially accommodate a straw is formed on the outer surface of the first tube. The arc groove extends along the axial direction of the first tube and is provided with an array of arc grooves. The array of arc grooves is arranged at equal angles along the circumference of the first tube. A straw inlet slide, which allows the straw to move along its extension direction, has one end in an arc shape concentric with the first roll of straw. This arc-shaped end extends from the top of the first roll of straw along its rotational direction to one side of the first roll of straw. The inner surface of this arc-shaped end forms an inlet channel with an arc groove on the first roll of straw, fully accommodating the straw. The tube feeding slide allows the straw belt to move along its extension direction. One end of the tube feeding slide is in the shape of an arc concentric with the second roll of tube. The arc-shaped end of the tube feeding slide and the arc groove on the second roll of tube form a tube feeding channel that can completely accommodate the straw. The arc-shaped end of the tube feeding slide extends from the upper part of one side of the second roll of tube along the rotation direction of the second roll of tube to the top of the second roll of tube.

3. The high-speed pipe cutting equipment according to claim 2, characterized in that, The tube feeding assembly also includes a straw buffer hopper, which is located below the first roll of tubes. A detection sensor is provided on one side of the straw buffer hopper to detect the straw level in the straw buffer hopper.

4. The high-speed pipe cutting device according to claim 1, characterized in that, The pick-and-place mechanism also includes The third power unit; and The constant pitch module is connected to the aforementioned third power device, and the aforementioned negative pressure block is connected to the constant pitch module.

5. A method for cutting a pipe, characterized in that, The pipe cutting method uses the high-speed pipe cutting equipment described in any one of claims 1 to 4, and the pipe cutting method includes... The entire straw belt passes through the inlet slide and enters the first roll of straw. The arc groove on the first roll of straw can hold the straw. The first power device drives the first roll of straw to rotate, which drives the straw belt to move so as to wind in the straw buffer bin to buffer a portion of the straw. The straw belt in the straw buffer hopper then enters the second roll of straw through the straw feeding slide. The second power device drives the second roll of straw to rotate, causing the straw belt to move in the direction of rotation. At the same time, the second power device drives the cutting blade to reciprocate. Every time the second roll of straw rotates by the angle of the arc groove, the cutting blade makes a cut to cut the straw belt into a single straw. The straws that are pulled to the bottom by the second roll of tubing enter the arc groove on the straw mold conveyor under their own weight, so as to transport the individual straws rolled out by the second roll of tubing away. The straw mold conveyor moves the straws along the guide slide to the bottom and feeds them between the baffle and the straw mold conveyor. When the number of straws between the baffle and the straw mold conveyor reaches a preset number, the fourth power unit drives the negative pressure block to swing to a horizontal position close to the straw. After it is in position, the fifth power unit drives the baffle to move outward, releasing the straw. The negative pressure block sucks up the straw, and the fourth power unit drives the negative pressure block to swing downward at a small angle. The third power unit provides power to the equal pitch module to widen the gap between the negative pressure blocks. The negative pressure block closes and releases the straw.

Images