A chain cutting machine and cutting method for cutting chains of multiple specifications to a fixed length

Abstract

The present invention discloses a chain cutting machine and a cutting method for cutting chains of multiple specifications at a fixed length, and belongs to the technical field of mechanical cutting. The chain cutting machine of the present invention for cutting chains of multiple specifications at a fixed length positions the cutting ring of the chain to be cut at the tool position of the cutting device through the feeding sprocket, and uses the positioning device to perform secondary positioning on the next ring of the cutting ring to prevent the ring from bouncing upward during the cutting process; the chain to be cut is limited by an embedded hole, and the chain to be cut is cut under the action of a hydraulic cylinder driven by a hydraulic pump; and the end of the chain to be cut is thrown to the other side of the material box by the inclined plate of the discharging device, avoiding the need to re-search for the head ring of the chain to be cut during subsequent sorting. The scheme is simple and practical, and is particularly suitable for cutting chains, which can effectively improve the degree of automation of the chain cutting device and the efficiency of chain cutting.

Description

Technical Field

[0001] The invention relates to a chain cutting machine and a cutting method for cutting chains of various specifications at a fixed length, belonging to the technical field of mechanical cutting. Background Art

[0002] Hoisting machinery plays an irreplaceable role in infrastructure construction, building construction, shipping and other fields. In some occasions with limited external facilities, such as small ships sailing, small bridge construction, and small construction sites, small-sized and light-weight chain hoists are extremely practical.

[0003] Take the Wuyi brand HS series chain hoist as an example. Its specifications are mainly distinguished by the number of chain rows. The number of chain rows and specifications of the chain hoist determine the rated load of the chain hoist, so the total length and specifications of the lifting chain of chain hoists of different specifications are often different. The hand chain of the chain hoist is HSTY5×25 hand chain, and the lifting chain of the chain hoist is ISO3077-1980-10×30 lifting chain, ISO3077-1980-8×24 lifting chain and ISO3077-1980-6×18 lifting chain. In the chain production process, there are corresponding automated equipment for chain weaving, chain verification, chain dynamic load tensile test, and chain rolling. Only chain cutting is still achieved by manual equipment.

[0004] The length of the chain is determined by the number of links. The number of links of chains of the same specification but different lengths varies, so the workers in this process need to cut the chain at the specified link. There is a certain probability of error in manually counting the number of chain links, which affects the overall quality of the product; in the ISO3077-1980-10×30 lifting chain cutting process, an effective cutting force of more than 10 tons is required. Relying on the current cutting tools, it is still necessary to apply about 700N of downward pressure, and the cutting operation is very laborious; the weight of a single cut chain can reach hundreds of kilograms, and it needs to be dragged and arranged neatly by manpower, and the sorting efficiency is low; the entire chain cutting operation requires at least 1 feeding operator, 2 cutting operators, and 1 material discharging and sorting operator, a total of 4 operators, and the labor cost is very high.

[0005] Furthermore, a Chinese patent (publication number CN109807282B) discloses a chain cutting device, which includes a chain cutting device including a cutting bracket, a cutting sliding plate, a horizontal cutting cylinder, a cutting fixed block, a cutting hinged rod, a cutting connecting rod, a vertical cutting cylinder and a cutting connecting block; the cutting sliding plate is arranged on the cutting bracket; the horizontal cutting cylinder is arranged at the rear of the cutting sliding plate, the cutting fixed block is fixedly arranged at the top of the cutting sliding plate, the cutting hinged rod is hinged to the upper part of the cutting fixed block, the vertical cutting cylinder moving part is connected to the rear of the cutting hinged rod, and the cutting connecting rod is connected to the front of the cutting hinged rod through the cutting connecting block. The beneficial effects of the present invention are: the chain can be cut automatically, and the wear of the cut pin shaft can be reduced; the pin shaft sheet can be recycled by providing a blanking through hole.

[0006] However, the above scheme is mainly used for cutting the chain, and does not involve how to cut the hoist ring chain. The ring chain is generally fixed together by chain links staggered horizontally and vertically, and cannot be placed flat on the cutting panel like a chain. Therefore, the above chain cutting device cannot be used for cutting the ring chain.

[0007] The information disclosed in this Background Art is only for understanding the background of the inventive concept and therefore it may include information that does not constitute the prior art. Summary of the invention

[0008] In response to the above problem or one of the above problems, an object of the present invention is to provide a chain cutting machine which can position the cutting ring of the chain to be cut at the tool position of the cutting device through a feeding sprocket, fix the cutting ring with an embedded hole that matches the cross-sectional contour of the chain to be cut, and then cut the cutting ring with a tool. The scheme is simple and practical, and is particularly suitable for cutting chains. It can effectively improve the degree of automation of the chain cutting device and the cutting efficiency of the chain, and is suitable for cutting chains of multiple specifications at fixed lengths.

[0009] In response to the above problem or one of the above problems, the second purpose of the present invention is to provide a method for positioning the cutting ring of the chain to be cut at the tool position of the cutting device through the feeding sprocket, and using the positioning device to perform secondary positioning on the next ring of the cutting ring to prevent the ring from bouncing upward during the cutting process; limiting the chain to be cut by embedded holes, and cutting the chain to be cut under the action of a hydraulic cylinder driven by a hydraulic pump; and using the inclined plate of the discharging device to throw the end of the chain to be cut to the other side of the material box, avoiding the need to re-search for the head ring of the chain to be cut during subsequent sorting. The scheme is simple and practical, particularly suitable for the cutting of chains, and can effectively improve the degree of automation of the chain cutting device and the cutting efficiency of the chain, which is a cutting method for fixed-length cutting of chains of multiple specifications.

[0010] To achieve one of the above purposes, the first technical solution of the present invention is:

[0011] A chain cutting machine for cutting chains of various specifications to a fixed length.

[0012] It includes a control box, a feeding device, a positioning device, a cutting device, a discharging device and a material box;

[0013] The control box is provided with an operation panel, which is used to set the specification, length and number of the chain to be cut;

[0014] A feeding device is provided with a feeding sprocket, which is used to position the cut-off ring of the chain to be cut at the tool position of the cutting device;

[0015] A positioning device, provided with at least two positioning blocks, which are used to perform secondary positioning on the chain links of adjacent truncation rings to prevent the chain links from bouncing upwards during the truncation process;

[0016] A cutting device, provided with an embedding hole matching the cross-sectional profile of the chain to be cut and a cutter, which is used to fix the cutting ring and cut the cutting ring;

[0017] The discharging device is provided with a slide plate, which is used for stacking the cut-off rings in the material box.

[0018] After continuous exploration and experiments, the present invention is provided with a control box, a feeding device, a positioning device, a cutting device, a discharging device and a material box. The cutting ring of the chain to be cut is positioned at the tool position of the cutting device through the feeding sprocket, the cutting ring is fixed by using the embedded hole matching the cross-sectional profile of the chain to be cut, and then the cutting ring is cut by using the tool. The scheme is simple and practical, and is particularly suitable for cutting the chain. It can effectively improve the degree of automation of the chain cutting device and effectively improve the cutting efficiency of the chain.

[0019] As the preferred technical measures:

[0020] The feeding device comprises at least four feeding sprocket wheels, a synchronous pulley, a servo motor, a synchronous belt, four feeding groove wheels, a seat bearing, a feeding frame, a photoelectric switch baffle, a photoelectric switch and a feeding bottom plate;

[0021] Four feed sprockets are coaxially installed; four feed chute wheels are coaxially installed.

[0022] As the preferred technical measures:

[0023] The positioning device at least comprises a guide tube, a positioning block, a positioning cylinder, a positioning cylinder seat and a pressing plate.

[0024] As the preferred technical measures:

[0025] The cutting device at least comprises a cutting seat, a push-stroke hydraulic cylinder, a chain-cutting fixed tool, a chain-cutting fixed tool seat, a chain-cutting movable tool and a return hydraulic cylinder.

[0026] As the preferred technical measures:

[0027] The chain cutting and fixing tool has a cross-shaped embedding hole, which matches the cross-sectional profile of the corresponding specification chain to ensure that the chain does not undergo axial torsion during the feeding process;

[0028] The chain cutting fixed tool and chain cutting movable tool are made of high-strength and high-toughness quenched die steel or high-speed tool steel, and their surface Rockwell hardness is 63-66HRC.

[0029] As the preferred technical measures:

[0030] The discharging device at least comprises a lower frame, a rotating slide plate, a push plate connecting rod, an inclined slide plate, a push plate cylinder, and a push plate cylinder seat;

[0031] The rotating slide plate can be raised and lowered. Due to the raising of the rotating slide plate, the end of the cut chain slides on the inclined surface for a long time and has a horizontal velocity component when sliding out of the discharging device. Therefore, the drop position of the end of the cut chain will be farther than the previous drop position, and the end of the chain to be cut is sorted out separately.

[0032] To achieve one of the above purposes, the second technical solution of the present invention is:

[0033] A cutting method for cutting chains of various specifications at a fixed length is applied to the above-mentioned chain cutting machine for cutting chains of various specifications at a fixed length, and includes the following contents:

[0034] Before loading, click Initialize on the operation interface, and the coaxial feeding sprocket is moved to the zero reference point by the servo motor; the subsequent feeding movement is based on the zero reference point;

[0035] The feeding device positions the cut-off ring of the chain to be cut at the blade position of the cutting device;

[0036] When the feeding device positions the cut-off ring of the chain to be cut at the blade position of the cutting device, the positioning device performs secondary positioning on the next ring after the cut-off ring to prevent the ring from bouncing upward during the cutting process;

[0037] The cutting device limits the chain to be cut by embedding holes, and cuts the chain to be cut under the action of a hydraulic cylinder driven by a hydraulic pump. After the chain to be cut is cut, the opposite hydraulic cylinder pushes the cutting device back to the initialization state.

[0038] When the chain to be cut is cut, the inclined plate of the discharging device flips, the discharging position changes, and the end of the chain to be cut is thrown to the other side of the material box, avoiding the need to re-find the head ring of the chain to be cut during subsequent sorting;

[0039] After a single chain cutting task is completed, the state of the feeding device remains unchanged and the other devices return to their initial state.

[0040] After continuous exploration and experiments, the present invention positions the cutoff ring of the chain to be cut at the tool position of the cutting device through the feeding sprocket, and uses the positioning device to perform secondary positioning on the next ring of the cutoff ring to prevent the ring from bouncing upward during the cutting process; the chain to be cut is limited by an embedded hole, and the chain to be cut is cut under the action of a hydraulic cylinder driven by a hydraulic pump; and the end of the chain to be cut is thrown to the other side of the material box by the inclined plate of the discharging device, so as to avoid the need to re-search for the head ring of the chain to be cut during subsequent sorting. The scheme is simple and practical, and is particularly suitable for the cutting of chains, and can effectively improve the degree of automation of the chain cutting device and the cutting efficiency of the chains.

[0041] As the preferred technical measures:

[0042] Construct single-cut chain model and continuous-cut chain model;

[0043] If you select the single chain cutting model, click again to proceed to the next chain cutting cycle;

[0044] If the continuous chain cutting model is selected, the chain cutting machine will continuously execute the chain cutting cycle until the number of chain cuts reaches the set chain value, at which time the set chain cutting task ends.

[0045] As the preferred technical measures:

[0046] The single-cut chain model includes the following:

[0047] The controller of the chain cutter controls the servo motor to execute the feeding motion envelope, drives the feeding sprocket to convey the cut-off ring of the chain to be cut to the cutting position of the cutting device and initially positions it;

[0048] At the same time, the rotating slide of the discharging device is in a lowered state, and the cut-off chain is stacked near the discharging device after it comes out of the discharging device;

[0049] After the feeding motion envelope is executed, the controller controls the corresponding solenoid valve to drive the positioning cylinder to push, and the positioning blocks fixed on the positioning cylinder move toward each other to tighten and fix the chain link above the cut-off ring. At the same time, the controller controls the corresponding solenoid valve to drive the push plate cylinder to push, and the rotating slide plate rises under the action of the push plate cylinder.

[0050] Then the controller controls the double-acting hydraulic pump to drive the push stroke hydraulic cylinder to perform a push stroke movement of a corresponding length. The chain cutting moving tool is misaligned with the chain cutting fixed tool under the action of the push stroke hydraulic cylinder. The cutting ring in the cutting device is subjected to a large shear force and breaks, and the chain to be cut is cut at a fixed length.

[0051] The end of the cut chain slides on the slope for a long time due to the rise of the rotating slide plate, and has a horizontal velocity component when sliding out of the discharge device. Therefore, the drop position of the end of the cut chain will be farther than the previous drop position, and the end of the cut chain is sorted out separately;

[0052] After the chain is cut, the controller controls the double-acting hydraulic pump to reverse and drive the return hydraulic cylinder to perform the return motion. The chain cutting moving tool returns to the initial state under the action of the return hydraulic cylinder. At the same time, the push plate cylinder also performs the return motion and the rotating slide plate is lowered. The single chain cutting task is completed.

[0053] As the preferred technical measures:

[0054] The operation panel displays the current cutting task parameters and progress in real time during the cutting process;

[0055] The chain cutting task parameters at least include the specifications of the chain to be cut, the number of rings, and the total number of chains;

[0056] The progress is the number of truncated links.

[0057] Compared with the prior art solutions, the present invention has the following beneficial effects:

[0058] After continuous exploration and experiments, the present invention is provided with a control box, a feeding device, a positioning device, a cutting device, a discharging device and a material box. The cutting ring of the chain to be cut is positioned at the tool position of the cutting device through the feeding sprocket, the cutting ring is fixed by using the embedded hole matching the cross-sectional profile of the chain to be cut, and then the cutting ring is cut by using the tool. The scheme is simple and practical, and is particularly suitable for cutting the chain. It can effectively improve the degree of automation of the chain cutting device and effectively improve the cutting efficiency of the chain.

[0059] After continuous exploration and experiments, the present invention positions the cutoff ring of the chain to be cut at the tool position of the cutting device through the feeding sprocket, and uses the positioning device to perform secondary positioning on the next ring of the cutoff ring to prevent the ring from bouncing upward during the cutting process; the chain to be cut is limited by an embedded hole, and the chain to be cut is cut under the action of a hydraulic cylinder driven by a hydraulic pump; and the end of the chain to be cut is thrown to the other side of the material box by the inclined plate of the discharging device, so as to avoid the need to re-search for the head ring of the chain to be cut during subsequent sorting. The scheme is simple and practical, and is particularly suitable for the cutting of chains, and can effectively improve the degree of automation of the chain cutting device and the cutting efficiency of the chains. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a structural schematic diagram of the chain cutter of the present invention;

[0061] Figure 2 It is a structural schematic diagram of the feeding device of the present invention;

[0062] Figure 3 It is a structural schematic diagram of the cutting device of the present invention;

[0063] Figure 4 It is a structural schematic diagram of the discharging device of the present invention;

[0064] Figure 5 It is a structural schematic diagram of the positioning device of the present invention;

[0065] Figure 6 It is a structural schematic diagram of the movable knife of the chain cutting knife of the present invention;

[0066] Figure 7 It is a structural schematic diagram of the fixed knife of the chain cutting knife of the present invention;

[0067] Figure 8 It is a structural schematic diagram of a cutting scheme of the chain cutting tool of the present invention;

[0068] Fig. 9 It is a schematic diagram of the control interface of the present invention;

[0069] Fig.10 It is the ring chain specification setting interface of the present invention;

[0070] Fig.11 This is the tool usage times interface of the present invention;

[0071] Fig.12 It is the control program flowchart of the present invention;

[0072] Fig.13 It is a diagram of the data processing and implementation of the parameter setting of the chain truncation task of the present invention;

[0073] Fig.14 This is a diagram of data processing and implementation of the chain truncation task described in the present invention.

[0074] Description of reference numerals:

[0075] 1. Feeding device; 2. Control box; 3. Positioning device; 4. Chain; 5. Cutting device; 6. Discharging device; 7. Double-acting hydraulic pump; 8. Feeding sprocket; 9. Synchronous pulley; 10. Servo motor; 11. Synchronous belt; 12. Feeding groove wheel; 13. Belt bearing; 14. Feeding frame; 15. Photoelectric switch baffle; 16. Photoelectric switch; 17. Feeding bottom plate; 18. Cutting seat; 19. Pushing hydraulic cylinder; 20. Cutting chain fixed tool; 21. Cutting chain fixed tool seat; 22. Cutting chain moving tool; 23. Return hydraulic cylinder; 24. Lower frame; 25. Rotating slide plate; 26. Pushing plate connecting rod; 27. Inclined slide plate; 28. Pushing plate cylinder; 29. ​​Pushing plate cylinder seat; 30. Guide tube; 31. Positioning block; 32. Positioning cylinder; 33. Positioning cylinder seat; 34. Press plate; 35. Embedded hole. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0077] On the contrary, the present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. Those skilled in the art can fully understand the present invention without the description of these details.

[0078] It should be noted that when two elements are "fixedly connected", the two elements may be directly connected or there may be an intermediate element. In contrast, when an element is said to be "directly on" another element, there is no intermediate element.

[0079] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0080] like Figure 1-Figure 8 As shown, a specific embodiment of the present invention is a chain cutting machine for cutting chains of multiple specifications at a fixed length:

[0081] A chain cutting machine for cutting chains of various specifications at a fixed length comprises a control box 2, a feeding device 1, a positioning device 3, a cutting device 5, a discharging device 6 and a material box.

[0082] The control box 2 is provided with an operation panel, which is used to set the specification, length and number of the chain 4 to be cut;

[0083] The feeding device 1 is provided with a feeding sprocket 8, which is used to position the cut-off ring of the chain 4 to be cut at the blade position of the cutting device 5;

[0084] The positioning device 3 is provided with at least two positioning blocks 31, which are used to perform secondary positioning on the adjacent rings of the adjacent truncation rings to prevent the adjacent rings from bouncing upwards during the truncation process;

[0085] The cutting device 5 is provided with an embedding hole 35 matching the cross-sectional profile of the chain 4 to be cut and a cutter, which is used to fix the cutting ring and cut the cutting ring;

[0086] The discharging device 6 is provided with a slide plate, which is used to stack the cut-off rings in the material box.

[0087] A specific embodiment of each device of the present invention:

[0088] The feeding device 1 at least comprises four feeding sprocket wheels 8, a synchronous pulley 9, a servo motor 10, a synchronous belt 11, four feeding groove wheels 12, a seat bearing 13, a feeding frame 14, a photoelectric switch baffle 15, a photoelectric switch 16 and a feeding bottom plate 17;

[0089] Four feed sprocket wheels 8 are coaxially mounted; four feed chute wheels 12 are coaxially mounted.

[0090] The positioning device 3 at least includes a guide tube 30 , a positioning block 31 , a positioning cylinder 32 , a positioning cylinder seat 33 and a pressing plate 34 .

[0091] The cutting device 5 at least comprises a cutting seat 18, a push stroke hydraulic cylinder 19, a chain cutting fixed tool 20, a chain cutting fixed tool seat 21, a chain cutting movable tool 22 and a return stroke hydraulic cylinder 23. The chain cutting fixed tool 20 is provided with a cross-shaped embedding hole 35, which matches the cross-sectional profile of the corresponding specification of the chain 4 to ensure that the chain 4 does not undergo axial torsion during the feeding process; the chain cutting fixed tool 20 and the chain cutting movable tool 22 are made of high-strength, high-toughness quenching die steel or high-speed tool steel, and their surface Rockwell hardness is 63-66HRC.

[0092] The discharging device 6 at least includes a lower frame 24, a rotating slide 25, a push plate connecting rod 26, an inclined slide 27, a push plate cylinder 28, and a push plate cylinder seat 29; the rotating slide 25 can be raised and lowered, and the end of the cut chain 4 has a long sliding time on the inclined surface due to the lifting of the rotating slide 25, and has a horizontal velocity component when sliding out of the discharging device 6. Therefore, the drop position of the end of the cut chain 4 will be farther than the previous drop position, and the end of the cut chain 4 will be sorted out separately.

[0093] The feeding device 1 is located at the upper part of the chain cutter, and is composed of a servo motor 10, four coaxially mounted feeding sprockets 8, four coaxially mounted feeding groove wheels 12, and a zero position detector. Before feeding, click Initialize on the operation interface to move the coaxial feeding sprocket 8 to the zero position reference point through the servo motor 10. Subsequent feeding movements are performed based on the zero position reference point. The feeding device 1 can accurately position the cutting ring of the chain 4 at the blade position of the cutting device 5.

[0094] When the feeding device 1 positions the cut-off ring of the chain 4 at the blade position of the cutting device 5, the secondary positioning device 3 performs secondary positioning on the next ring of the cut-off ring to prevent the ring from bouncing upward during the cutting process. The cutting device 5 cuts the chain 4 under the action of the hydraulic cylinder driven by the hydraulic pump. After the chain 4 is cut, the opposite hydraulic cylinder pushes the cutting device 5 back to the initialization state.

[0095] When the chain 4 is cut off, the inclined plate of the discharging device 6 is turned over, the discharging position is changed, and the end of the chain 4 is thrown to the other side of the material box, avoiding the search for the head ring of the chain 4 during subsequent sorting.

[0096] After the single chain cutting task is completed, the state of the feeding device 1 remains unchanged, and the other devices return to the initial state. The chain cutter has single chain cutting and continuous chain cutting functions. If single chain cutting is selected, click again to proceed to the next chain cutting cycle. If continuous chain cutting is clicked, the chain cutter continuously executes the chain cutting cycle until the set chain cutting task is completed. The lower frame 24 of the chain cutter is fixed in the working position by anchor screws.

[0097] like Figure 9-14 As shown, a specific embodiment of the present invention is applied:

[0098] Before powering on and starting the machine for use, click the Initialize button on the operation interface of the control box 2, and the controller will enter the initialization state, and all the parameters related to the working state set last time will be initialized.

[0099] First, set the parameters for truncating the chain 4. Click the chain 4 specification setting button on the operation interface to enter the chain 4 specification setting interface. Click the chain 4 type selection button as required. In the chain 4 specification setting section, click the corresponding chain 4 length-number of rings table to query the number of rings of the chain 4 that need to be truncated.

[0100] If you need to cut off the ISO3077-1980-10×30 lifting chain 4, click the 10mm lifting chain 4 button, the controller enters the 10mm chain 4 cutting working state, the constant controlling the ISO3077-1980-10×30 lifting chain 4 chain 4 feeding speed is shifted to the register controlling the feeding speed, the constant of the ISO3077-1980-10×30 lifting chain 4 pitch is transmitted to the chain 4 pitch related register, the constant controlling the tool pushing time of cutting off the ISO3077-1980-10×30 lifting chain 4 is transmitted to the register controlling the pushing time of the pushing hydraulic cylinder 19.

[0101] If you need to cut off the ISO3077-1980-8×24 lifting chain 4, click the 8mm lifting chain 4 button, the controller enters the 10mm chain 4 cutting working state, the constant that determines the ISO3077-1980-8×24 lifting chain 4 chain 4 feeding speed is shifted to the register that controls the feeding speed, the constant of the ISO3077-1980-8×24 lifting chain 4 pitch is transmitted to the chain 4 pitch related register, the constant that controls the cutting tool push time of the ISO3077-1980-8×24 lifting chain 4 is transmitted to the register that controls the push time of the push hydraulic cylinder 19.

[0102] If you need to cut off the ISO3077-1980-6×18 lifting chain 4, click the 6mm lifting chain 4 button, the controller will enter the 6mm chain 4 cutting working state, the constant that determines the ISO3077-1980-6×18 lifting chain 4 chain 4 feeding speed is shifted to the register that controls the feeding speed, the constant of the ISO3077-1980-6×18 lifting chain 4 pitch is transmitted to the chain 4 pitch related register, the constant that controls the cutting tool push time of the ISO3077-1980-6×18 lifting chain 4 is transmitted to the register that controls the push time of the push hydraulic cylinder 19.

[0103] If it is necessary to cut off the HSTY5×25 hand-pulled chain 4, click the 5mm lifting chain 4 button, and the controller will enter the 5mm chain 4 cutting working state. The constant that determines the feeding speed of the HSTY5×25 hand-pulled chain 4 is shifted to the register that controls the feeding speed, the constant of the HSTY5×25 hand-pulled chain 4 pitch is transmitted to the chain 4 pitch-related register, the constant that controls the push time of the tool for cutting off the HSTY5×25 hand-pulled chain 4 is transmitted to the register that controls the push time of the push hydraulic cylinder 19, and the number of single-segment chain 4 rings is entered in the single-segment chain 4 ring number data input pane. The number of chains 4 that need to be cut is entered in the single-segment chain 4 ring number data input pane. The controller calculates the displacement, speed and number of chain 4 cutting program cycles of the single-segment chain 4 feeding motion envelope according to the chain 4 pitch, the number of chain 4 rings and the total number of chains 4 required.

[0104] Click the feeding button of the ring chain 4 in the working interface, and the controller sends a signal to control the servo motor 10 to execute the feeding position reference motion envelope, and drives the feed sprocket 8 to move slowly through the synchronous belt 11 and the synchronous pulley 9 to find the feeding reference position. The photoelectric switch baffle 15 installed coaxially with the feed sprocket 8 rotates first at a speed of 5rad / min in the clockwise direction to approach the trigger position of the photoelectric switch 16 until the photoelectric switch is triggered. Due to inertia, the actual stop position of the servo motor 10 may exceed the ideal stop position. The controller receives the feedback signal and controls the servo motor 10 to drive the feed sprocket 8 axis to approach the trigger position of the photoelectric switch 16 at a speed of 5rad / mind in the counterclockwise direction until the photoelectric switch 16 is triggered. After receiving the feedback signal, the controller controls the servo motor 10 to stop and position the feed sprocket 8 at the feeding reference position. Then, one end of the ring chain 4 to be cut is manually fixed at the designated position of the corresponding feed sprocket 8 through the corresponding feed groove wheel 12, and then returns to the working interface and clicks the button to complete the feeding.

[0105] The controller drives the servo motor 10 to execute the initial feeding position. The servo motor 10 drives the feeding sprocket 8 in a belt transmission manner to convey the endless chain 4 to be cut to the initial feeding position at a speed of 40 rad / min.

[0106] Different from the transmission chain, the link connection method of the ring chain 4 is that the horizontal links and vertical links are staggered, and the truncation direction of the link is determined by the movement direction. When the ring chain 4 needs to be connected end to end, the link at both ends must be both horizontal links or both vertical links. Therefore, the truncation link of the ring chain 4 cannot be arbitrarily selected according to the length, and must be both horizontal links or both vertical links.

[0107] If the operator needs to perform a single chain cut, he clicks the single chain cut button on the work interface, and the controller of the chain cutter controls the servo motor 10 to execute the feeding motion envelope, driving the feeding sprocket 8 to transport the cut ring of the chain 4 to the cutting position of the cutting device 5 and initially position it. At the same time, the rotating slide plate 25 of the discharging device 6 is in a lowered state, and the chain 4 comes out of the discharging device 6 and is stacked at a position close to the discharging device 6.

[0108] During the feeding process, since there is a certain distance between the feeding sprocket 8 and the cutting device 5, if the chain 4 is not constrained during the feeding process, axial torsion will occur, resulting in an unsatisfactory posture of the cutting ring. Therefore, the inner contour of the chain cutting tool in the cutting device 5 is in the shape of a "cross", which matches the cross-sectional contour of the corresponding specification chain 4, thereby controlling the chain 4 from axial torsion during the feeding process. Since the lifting chain 4 is a heavy-duty component, the tensile strength of the material is extremely high, so the material used to manufacture the chain 4 cutting tool needs to be high-strength and high-toughness quenching die steel or high-speed tool steel, and according to preliminary calculations, the surface Rockwell hardness of the chain 4 cutting tool needs to reach 63-66HRC.

[0109] Since the chain 4 will deform to a certain extent during the truncation process, the chain 4 needs to be reliably positioned in the axial direction to prevent the positioning accuracy of the servo motor 10 from being affected during the truncation process. After the feeding motion envelope is executed, the controller controls the corresponding solenoid valve to drive the positioning cylinder 32 to push, and the positioning block 31 fixed on the positioning cylinder 32 moves toward each other to tighten and fix the chain link above the truncation ring. At the same time, the controller controls the corresponding solenoid valve to drive the push plate cylinder 28 to push, and the rotating slide plate 25 rises under the action of the push plate cylinder 28.

[0110] Then the controller controls the double-acting hydraulic pump 7 to drive the push stroke hydraulic cylinder 19 to perform a push stroke motion of a corresponding length. The chain cutting moving tool 22 is misaligned with the chain cutting fixed tool 20 under the action of the push stroke hydraulic cylinder 19. The cutting ring in the cutting device 5 is subjected to a large shear force and breaks, and the chain 4 is cut at a fixed length. Due to the rise of the rotating slide 25, the end of the cut chain 4 slides on the inclined surface for a longer time and has a larger horizontal velocity component when sliding out of the discharging device 6. Therefore, the drop position of the end of the cut chain 4 will be farther than the previous drop position, and the end of the chain 4 is sorted out separately.

[0111] After the chain 4 is cut, the controller controls the double-acting hydraulic pump 7 to reverse and drive the return hydraulic cylinder 23 to perform a return motion. The chain cutting moving tool 22 returns to the initial state under the action of the return hydraulic cylinder 23. At the same time, the push plate cylinder 28 also performs a return motion, and the rotating slide plate 25 is lowered. The single chain cutting task is completed.

[0112] If the operator still wants to perform a single chain cutting, click the single chain cutting button on the work interface again, and the chain cutter will perform the next chain cutting task; if continuous chain cutting is required, click the continuous chain cutting button and the chain cutter will continuously perform the set chain cutting task until the number of chains cut reaches the set value of 4.

[0113] During the chain cutting process, the working interface displays the current chain cutting task parameters and progress (specifications of the 4 chain cuts, number of rings, total number, number of 4 chain cuts) in real time.

[0114] If the chain cutter gets stuck accidentally during the feeding process, or the chain 4 is not successfully cut during the cutting process, please immediately press the stop button on the operation interface or the external emergency stop switch on the control box 2.

[0115] In addition, the chain cutter of the chain cutter has a fixed service life. Each time the chain cutting task is executed, the number of times the corresponding chain cutter works will be recorded in the corresponding power-off retention register and accumulated one by one. Click the tool working times to enter the tool usage times interface, where you can see the usage times and life of each set of cutting tools on the chain cutter. Before each use, the operator should check whether the life of the cutting tool and the wear degree of the working blade can meet the working requirements.

[0116] The chain 4 cuts off the moving knife of the knife. Figure 6 As shown, it has 4 sets of blades, that is, a single tool can be used for 4 life cycles without changing the tool. The fixed tool of the chain 4 cuts off the tool. A structural diagram is shown as follows Figure 7 As shown in the figure, it has 8 sets of blades, that is, a single tool can be used for 8 life cycles. This tool structure greatly increases the use cycle of a single tool and greatly reduces the cost of replacing wearing parts. If the working blade is found to be damaged, replace the working blade. If all working blades are found to be damaged, the tool needs to be replaced and the tool change button is clicked in the tool usage interface. The usage count of the corresponding chain 4 cut-off tool is also reset to zero.

[0117] The invention can realize automatic counting of the number of chain links, automatic cutting and automatic discharging and sorting, and can effectively solve the problems of low efficiency, laboriousness and high labor cost of current manual chain cutting.

[0118] An embodiment of a device applying the method of the present invention:

[0119] A computer device comprising:

[0120] one or more processors;

[0121] A storage device for storing one or more programs;

[0122] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned ring chain truncation method for fixed-length truncation of ring chains of multiple specifications.

[0123] A computer medium embodiment of the method of the present invention is applied:

[0124] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the above-mentioned method for cutting a ring chain at a fixed length for cutting a ring chain of multiple specifications.

[0125] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, and computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0126] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of the processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0127] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0128] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A chain cutting machine for cutting chains of various specifications to a fixed length, characterized in that: It comprises a control box (2), a feeding device (1), a positioning device (3), a cutting device (5), a discharging device (6) and a material box; The control box (2) is provided with an operation panel, which is used to set the specification, length and number of the chain (4) to be cut; A feeding device (1) is provided with a feeding sprocket (8) for positioning the cut-off ring of the chain (4) to be cut at the tool position of the cutting device (5); The feeding device (1) comprises at least four feeding sprocket wheels (8), a synchronous pulley (9), a servo motor (10), a synchronous belt (11), four feeding groove wheels (12), a seat bearing (13), a feeding frame (14), a photoelectric switch baffle (15), a photoelectric switch (16) and a feeding bottom plate (17); Four feed sprocket wheels (8) are coaxially mounted; four feed slot wheels (12) are coaxially mounted; The positioning device (3) is provided with at least two positioning blocks (31) for performing secondary positioning on the chain links of adjacent truncation rings to prevent the chain links from bouncing upwards during the truncation process; The positioning device (3) at least comprises a guide tube (30), a positioning block (31), a positioning cylinder (32), a positioning cylinder seat (33) and a pressing plate (34); A cutting device (5) is provided with an embedding hole (35) matching the cross-sectional profile of the chain (4) to be cut and a cutter, and is used to fix the cutting ring and cut the cutting ring; The discharging device (6) is provided with a slide plate and is used for stacking the cut-off rings in the material box.

2. A chain cutting machine for cutting chains of various specifications to a fixed length as claimed in claim 1, characterized in that: The cutting device (5) comprises at least a cutting seat (18), a push-stroke hydraulic cylinder (19), a chain-cutting fixed tool (20), a chain-cutting fixed tool seat (21), a chain-cutting movable tool (22) and a return hydraulic cylinder (23).

3. A chain cutting machine for cutting chains of various specifications to a fixed length as claimed in claim 2, characterized in that: The chain cutting and fixing tool (20) is provided with a cross-shaped embedding hole (35) which matches the cross-sectional profile of the ring chain (4) of corresponding specifications, so as to ensure that the ring chain (4) does not undergo axial twisting during the feeding process; The chain-cutting fixed tool (20) and the chain-cutting movable tool (22) are made of high-strength, high-toughness quenching die steel or high-speed tool steel, and their surface Rockwell hardness is 63-66HRC.

4. A chain cutting machine for cutting chains of various specifications to a fixed length as claimed in claim 1, characterized in that: The discharging device (6) comprises at least a lower frame (24), a rotating slide plate (25), a push plate connecting rod (26), an inclined slide plate (27), a push plate cylinder (28), and a push plate cylinder seat (29).

5. A method for cutting chains of various specifications to a fixed length, characterized in that: A chain cutting machine for cutting chains of various specifications to a fixed length as described in any one of claims 1 to 4, comprising the following contents: Before loading, click on the initialization on the operation interface, and the coaxial feeding sprocket (8) is moved to the zero reference point by the servo motor (10); the subsequent feeding movement is performed based on the zero reference point; The feeding device (1) positions the cut-off ring of the chain (4) to be cut at the blade position of the cutting device (5); When the feeding device (1) positions the cut-off ring of the chain (4) to be cut at the blade position of the cutting device (5), the positioning device (3) performs secondary positioning on the next ring after the cut-off ring; The cutting device (5) limits the chain to be cut (4) through the embedded hole (35), and cuts the chain to be cut (4) under the action of the hydraulic cylinder driven by the hydraulic pump. After the chain to be cut (4) is cut, the opposite hydraulic cylinder pushes the cutting device (5) back to the initialization state. When the chain (4) to be cut is cut, the inclined plate of the discharge device (6) turns over, the discharge position changes, and the end of the chain (4) to be cut is thrown to the other side of the material box; After a single chain cutting task is completed, the state of the feeding device (1) remains unchanged, and the other devices return to their initial states.

6. A method for cutting chains of various specifications to a fixed length as claimed in claim 5, characterized in that: Construct single-cut chain model and continuous-cut chain model; If you select the single chain cutting model, click again to proceed to the next chain cutting cycle; If the continuous chain cutting model is selected, the chain cutting machine continuously executes the chain cutting cycle until the number of cut chains (4) reaches the set number of chains (4), at which time the set chain cutting task ends.

7. A method for cutting to fixed length of multi-specification chain as claimed in claim 6, characterized in that: The single-cut chain model includes the following: The controller of the chain cutting machine controls the servo motor (10) to execute the feeding motion envelope, drives the feeding sprocket (8) to transport the cut-off ring of the chain to be cut (4) to the cutting position of the cutting device (5) and initially positions it; At the same time, the rotating slide plate (25) of the discharging device (6) is in a lowered state, and the cut-off chain (4) is stacked at a position close to the discharging device (6) after it comes out of the discharging device (6); After the feeding motion envelope is executed, the controller controls the corresponding electromagnetic valve to drive the positioning cylinder (32) to push, and the positioning blocks (31) fixed on the positioning cylinder (32) move toward each other to tighten and fix the chain link above the cut-off ring. At the same time, the controller controls the corresponding electromagnetic valve to drive the push plate cylinder (28) to push, and the rotating slide plate (25) rises under the action of the push plate cylinder (28); Then, the controller controls the double-acting hydraulic pump (7) to drive the push-stroke hydraulic cylinder (19) to perform a push-stroke movement of a corresponding length of time, and the chain-cutting movable tool (22) is misaligned with the chain-cutting fixed tool (20) under the action of the push-stroke hydraulic cylinder (19), and the cutting ring in the cutting device (5) is subjected to a large shear force and breaks, and the cutting ring chain (4) is cut off at a fixed length; The end of the cut chain (4) slides on the inclined surface for a long time due to the lifting of the rotating slide plate (25), and has a horizontal velocity component when sliding out of the discharging device (6). Therefore, the drop position of the end of the cut chain (4) will be farther than the previous drop position, and the end of the cut chain (4) is sorted out separately; After the cutting of the cutting chain (4) is completed, the controller controls the double-acting hydraulic pump (7) to reverse and drive the return hydraulic cylinder (23) to perform a return movement, and the chain cutting moving tool (22) returns to the initial state under the action of the return hydraulic cylinder (23), and at the same time, the push plate cylinder (28) also performs a return movement, and the rotating slide plate (25) is lowered; the single chain cutting task is completed.

8. A method for cutting chains of various specifications to a fixed length as described in any one of claims 5 to 7, characterized in that: The operation panel displays the current chain cutting task parameters and progress in real time during the chain cutting process; The chain cutting task parameters at least include the specifications, number of rings, and total number of the cut chain (4); The progress is the number of truncated chains (4).

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