Shearing device, shearing machine and control method of shearing machine

Abstract

This invention discloses a shearing device, a shearing machine, and a control method for the shearing machine. The shearing device includes a frame, a shearing mechanism, and a transfer mechanism. The frame is provided with a shearing station. The shearing mechanism is used to shear materials located at the shearing station. The transfer mechanism includes a gripper assembly and a gripper limiting member connected to each other. The gripper assembly is mounted on the frame and is used to grip and move or release materials. The gripper assembly includes a body and two opposing grippers. The gripper limiting member is used to limit the distance between the two grippers when gripping materials. The gripper assembly can grip irregularly shaped materials, and the gripper limiting member limits the distance between the two grippers when gripping materials, thereby preventing excessive gripping force from damaging the effective surface of the material. The shearing mechanism shears the material, thus realizing the shearing of irregular materials.

Description

Technical Field

[0001] This invention relates to the field of optical component processing technology, and in particular to a shearing device, a shearing machine, and a control method for the shearing machine. Background Technology

[0002] Shearing machines are essential for the reprocessing of formed optical products and are also key equipment for finalizing the dimensions of optical products. With the entry of leading internet companies, the domestic VR / AR optical market has been injected with tremendous vitality and has broad development prospects. The growth rate of virtual reality technology ranks first in the world. However, at the same time, we also face many challenges and breakthroughs from new technologies and processes.

[0003] The existing shearing machine can only cut regular products, and the material handling is mainly done by suction nozzles. It has limitations in its application to optical products of various shapes and cannot meet the processing needs of irregularly shaped products.

[0004] Therefore, it is necessary to provide a new shearing device, shearing machine, and control method for the shearing machine to solve or at least alleviate the above-mentioned technical defects. Summary of the Invention

[0005] The main objective of this invention is to provide a shearing device, a shearing machine, and a control method for the shearing machine, aiming to solve the technical problem that the material handling of existing shearing machines is not applicable to optical products with irregular shapes.

[0006] To achieve the above objectives, the present invention provides a shearing device, the shearing device comprising:

[0007] A frame, wherein the frame is provided with a shearing station;

[0008] A shearing mechanism for shearing materials located at the shearing station;

[0009] A transfer mechanism includes a gripper assembly and a gripper limiting member connected to each other. The gripper assembly is mounted on the frame and is used to grip the material and move or release the material. The gripper assembly includes a body and two opposing grippers. The gripper limiting member is used to limit the distance between the two grippers when the grippers grip the material.

[0010] In one embodiment, the shearing mechanism includes a shearing assembly and a shearing drive. The shearing assembly includes a mounting frame, a heating module, and a cutting blade. Both the heating module and the cutting blade are mounted on the mounting frame and are spaced apart so that the heating module can avoid the material located at the shearing station. The shearing drive is mounted on the frame and is drively connected to the mounting frame to drive the cutting blade to shear the material located at the shearing station via the mounting frame.

[0011] In one embodiment, the shearing assembly includes a first shearing assembly and a second shearing assembly. The first shearing assembly includes a first mounting bracket, a first heating module, and a first cutting blade. The second shearing assembly includes a second mounting bracket, a second heating module, and a second cutting blade. Both the first and second mounting brackets are connected to the shearing drive component. The first and second cutting blades are arranged facing each other on both sides of the shearing station. The shearing drive component can drive the first and second cutting blades to move towards or away from each other through the first and second mounting brackets, respectively.

[0012] In one embodiment, the first shearing assembly further includes a first limiting member mounted on the first mounting frame, the second shearing assembly further includes a second limiting member mounted on the second mounting frame, and the shearing device further includes a limiting component mounted on the frame. The limiting component is used to abut against the first limiting member and the second limiting member and restrict the first cutter and the second cutter from continuing to move toward each other after completing the shearing of the material.

[0013] In one embodiment, the limiting component includes a first limiting nut, a second limiting nut, and a screw. The screw is mounted on the frame, and both the first limiting nut and the second limiting nut are screwed to the screw. The first limiting nut is used to limit the stroke of the first limiting member, and the second limiting nut is used to limit the stroke of the second limiting member.

[0014] In one embodiment, the shearing assembly further includes a tension spring, one end of which is connected to the mounting bracket and the other end of which is connected to the frame. The tension spring is used to drive the mounting bracket to move away from the shearing station.

[0015] In one embodiment, the heating temperature of the heating module is denoted as T, then: 215℃≤T≤225℃.

[0016] In one embodiment, the shearing device further includes an over-position detection element. The position of the mounting frame when the cutter completes the shearing of the material is recorded as the second shearing position. The over-position detection element and the mounting frame are arranged along the movement direction of the cutter when shearing the material. The over-position detection element is used to detect whether the mounting frame exceeds the second shearing position.

[0017] In one embodiment, the gripper limiting member is an adjustable gripper limiting member, which is used to adjust the distance between the two grippers when the grippers hold the material.

[0018] In one embodiment, the gripper limiting member includes a gripper limiting member body and a buffer pad connected to each other, the buffer pad being used to abut against the gripper.

[0019] In addition, the present invention also provides a shearing machine, which includes a storage bin and the above-mentioned shearing device. The storage bin contains a plurality of material trays, and the gripper assembly is used to move the material that has been sheared into the material trays.

[0020] Furthermore, a control method for a shearing machine is provided, the shearing machine control method being applied to the aforementioned shearing machine, the shearing machine control method comprising:

[0021] The gripper assembly is controlled to hold the material, and then the material is moved to the shearing station;

[0022] Control the shearing mechanism to shear the material;

[0023] Obtain the quantity of material in the tray and determine whether the quantity of material is not higher than a preset quantity of material.

[0024] If so, control the gripper assembly to move the material into the tray;

[0025] If not, then control the shearing machine to stop operating.

[0026] In one embodiment, the shearing machine further includes an alarm device and an identification device. The identification device is used to determine whether the material is placed in the tray. If not, the step of controlling the shearing machine to stop operating includes:

[0027] If not, the identification device is controlled to obtain the tray information of the material tray in the storage bin, and the tray information is used to determine whether there is an empty tray in the storage bin that does not contain the material.

[0028] If there is an empty tray without any material, the gripper assembly is controlled to move the material into the empty tray; if there is no empty tray without any material, the alarm device is controlled to sound an alarm, and then the shearing machine is controlled to stop operating.

[0029] In one embodiment, the shearing machine further includes a timing device, and the step of controlling the alarm device to issue an alarm and then controlling the shearing machine to stop operating if there is no empty material tray without material is present includes:

[0030] If there is no empty tray without the material, the alarm device is controlled to issue an alarm, and the timing time of the timing device is obtained to determine whether the timing time is not greater than the preset time.

[0031] If the timing time is not greater than the preset time, the identification device is controlled to continuously acquire the material tray information, and the material tray information is used to determine whether there is an empty material tray in the storage bin that does not contain the material.

[0032] If yes, then control the gripper assembly to move the material into the empty tray; if no, then execute the step of obtaining the timing time of the timing device and determining whether the timing time is not greater than the preset time.

[0033] If the timing period exceeds the preset time, the shearing machine is controlled to stop operating.

[0034] In one embodiment, the shearing machine further includes a material feeding device, a conveying device, a positioning device, and a material detection device. The frame is provided with a loading position and a unloading position. Before the step of controlling the gripper assembly to clamp the material and then moving the material to the shearing station, the following steps are included:

[0035] The material conveying device is controlled to transport the material to the loading position;

[0036] The material detection device is controlled to determine whether the material exists at the feeding position;

[0037] If so, control the conveying device to deliver the material to the picking position;

[0038] The positioning device is controlled to position the material located at the material picking position.

[0039] In the above technical solution of the present invention, a gripper assembly can be used to grip irregularly shaped materials. A gripper limiting member limits the distance between the two grippers in the gripper assembly when holding the material, thereby preventing excessive gripping force from damaging the effective surface of the material. After gripping the material, the gripper assembly moves it to a shearing station, where a shearing mechanism shears the material. After shearing, the gripper assembly removes the sheared material from the shearing station, thus achieving the gripping and shearing of irregularly shaped materials. The material can be lenses, optical plastics, or other optical products. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0041] Figure 1 This is an exploded structural diagram of a shearing device according to an embodiment of the present invention;

[0042] Figure 2 This is a partial structural schematic diagram of a shearing device according to an embodiment of the present invention;

[0043] Figure 3 This is a partial structural schematic diagram of a transfer mechanism according to an embodiment of the present invention;

[0044] Figure 4 This is a flowchart illustrating the first embodiment of the control method for the shearing machine of the present invention;

[0045] Figure 5 This is a flowchart illustrating the second embodiment of the control method for the shearing machine of the present invention;

[0046] Figure 6 This is a flowchart illustrating the third embodiment of the control method for the shearing machine of the present invention.

[0047] Explanation of icon numbers:

[0048] 1. Shearing device; 12. Frame; 121. Shearing station; 13. Shearing mechanism; 131. Shearing assembly; 131A. First shearing assembly; 131B. Second shearing assembly; 1311. Mounting bracket; 1312. Heating module; 1313. First body; 1314. Second body; 1315. Cutting blade; 1316. First limiting component; 1317. Second limiting component; 132. Shearing drive component; 1321. Drive body; 1322. Rotating shaft; 1323. Guide shaft; 133. Tension spring; 1331. First tension spring; 1332. Second tension spring; 14. Transfer mechanism; 141. Gripper assembly; 1411. Gripper; 1412. Body; 142. Gripper limiting component; 15. Limiting assembly; 151. First limiting nut; 152. Second limiting nut; 153. Screw; 2. Material.

[0049] The realization of the objective, functional characteristics and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] It should be noted that all directional indications (such as up, down, forward, backward, left, and right) in the embodiments of this invention are only used to interpret a specific posture (as shown in the attached diagram). Figure 1 The relative positions and movements of the components shown below are considered. If the specific posture changes, the directional indication will also change accordingly.

[0052] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" can explicitly or implicitly include at least one of that feature.

[0053] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0054] This invention provides a shearing device 1, with reference to Figure 1 and Figure 3The shearing device 1 includes a frame 12, a shearing mechanism 13, and a transfer mechanism 14. The frame 12 is provided with a shearing station 121. The shearing mechanism 13 is used to shear the material 2 located at the shearing station 121. The transfer mechanism 14 includes a gripper assembly 141 and a gripper limiting member 142 connected to each other. The gripper assembly 141 is installed on the frame 12 and is used to grip the material 2 and move or release the material 2. The gripper assembly 141 includes a body 1412 and two oppositely arranged grippers 1411. The gripper limiting member 142 is used to limit the distance between the two grippers 1411 when the grippers 1411 grip the material 2.

[0055] While the gripper assembly 141 can grip irregularly shaped materials 2, directly gripping the material 2 with the gripper assembly 141 carries the risk of excessive gripping force damaging the effective surface of the material 2, or insufficient gripping force causing the gripped material 2 to fall off the gripper assembly 1411 during movement. This solution uses a gripper limiting member 142 to limit the distance between the two grippers 1411 when gripping the material 2, thus preventing excessive gripping force from damaging the effective surface of the material 2. After gripping the material 2, the gripper assembly 141 moves it to the shearing station 121, where the shearing mechanism 13 shears the material 2. After shearing, the gripper assembly 141 removes the sheared material 2 from the shearing station 121, thus achieving the gripping and shearing of irregularly shaped materials 2. The material 2 can be a lens, optical plastic, or other optical products. It should be noted that since the gripper assembly 141 replaces the traditional suction cup, a mechanical gripper loading and unloading module is added to the control system to control the gripper assembly 141, improving the automation level of the shearing machine and realizing CNC and linkage. Furthermore, the gripper 1411 can be an electric cylinder gripper 1411, replacing the suction nozzle method for material handling. This has advantages such as simple control system configuration, individual arbitrary setting of position parameters, stable operation, and diverse versatility. It breaks through the limitation of only being able to cut products with regular shapes, allowing the clamping stroke and force to be set according to product size requirements. This enables the generalization, integration, and modularization of the product manufacturing process, improving production efficiency and enhancing the automation and intelligence level of the production process.

[0056] According to one embodiment of the present invention, the gripper limiting member 142 and the gripper 1411 are detachably connected, so that different gripper limiting members 142 can be replaced according to the shape and size of the material 2, so that the gripper 1411 can clamp materials 2 of different sizes and irregular shapes, thereby expanding the applicability of the gripper assembly 141.

[0057] Furthermore, the shearing mechanism 13 includes a shearing assembly 131 and a shearing drive 132. The shearing assembly 131 includes a mounting frame 1311, a heating module 1312, and a cutter 1315. The heating module 1312 and the cutter 1315 are both mounted on the mounting frame 1311 and are spaced apart so that the heating module 1312 can avoid the material 2 located at the shearing station 121. The shearing drive 132 is mounted on the frame 12 and is connected to the mounting frame 1311 for transmission, so as to drive the cutter 1315 to shear the material 2 located at the shearing station 121 through the mounting frame 1311. When using an existing shearing machine to cut irregular material 2, the heating module 1312 may interfere with the convex surface of material 2 when the cutting blade 1315 is cutting material 2, easily causing scratches on the product and reducing the yield rate. This solution sets the heating module 1312 and the cutting blade 1315 apart to prevent interference between the heating module 1312 and the material 2 when cutting, thus avoiding burns to material 2 by the heating module 1312. It should be noted that the heating module 1312 and the cutting blade 1315 are set apart in the front-to-back direction. The heating module 1312 is moved 10mm backward compared to the existing heating module 1312, which can effectively avoid products with high undulations.

[0058] Reference Figure 2The shearing assembly 131 includes a first shearing assembly 131A and a second shearing assembly 131B. The first shearing assembly 131A includes a first mounting bracket, a first heating module, and a first cutting blade. The second shearing assembly 131B includes a second mounting bracket, a second heating module, and a second cutting blade. Both the first and second mounting brackets are connected to the shearing drive 132 for transmission. The first and second cutting blades are arranged facing each other on both sides of the shearing station 121. The shearing drive 132 can drive the first and second cutting blades to move towards or away from each other through the first and second mounting brackets, respectively. By setting the first shearing component 131A and the second shearing component 131B, the shearing drive 132 can simultaneously drive the first cutter and the second cutter to shear the material 2. Compared with the shearing drive 132 driving a single cutter 1315 to shear the material 2, since the first cutter and the second cutter move towards each other to cut the material 2, the stroke of the first cutter and the second cutter is less than that of a single cutter 1315. Under the condition that the shearing speed of the cutter 1315 remains unchanged, the efficiency of shearing the material 2 simultaneously by the first cutter and the second cutter is higher. It should be noted that the shearing drive 132 includes a drive body 1321, a rotating shaft 1322, and a guide shaft 1323. The guide shaft 1323 is mounted on the frame 12 and passes through the first mounting bracket and the second mounting bracket in sequence. The first mounting bracket and the second mounting bracket are both slidably engaged with the guide shaft 1323. The two ends of the rotating shaft 1322 are respectively provided with a first thread and a second thread with the opposite direction of the first thread. The first mounting bracket is screwed into the first thread, and the second mounting bracket is screwed into the second thread. The drive body 1321 is used to drive the rotating shaft 1322 to rotate, thereby driving the first cutter and the second cutter to move towards or away from each other.

[0059] According to one embodiment of the present invention, the drive body 1321 is a servo motor or a stepper motor equipped with an encoder. Existing shearing machines generally use a 200W servo motor to drive the cutting blade 1315, which is too specialized and can easily overload some products, and the cutting efficiency is low. However, the drive body 1321 uses a 400W servo motor, which is more versatile and also improves the cutting efficiency for various optical components.

[0060] See Figure 1 and Figure 2The first shearing assembly 131A further includes a first limiting member 1316 mounted on the first mounting frame, and the second shearing assembly 131B further includes a second limiting member 1317 mounted on the second mounting frame. The shearing device 1 further includes a limiting assembly 15, which is mounted on the frame 12. The limiting assembly 15 is used to abut against the first limiting member 1316 and the second limiting member 1317 and restrict the first cutter and the second cutter from continuing to move towards each other after completing the shearing of the material 2. Because the first and second cutting blades are prone to misalignment in the left and right directions after working for a period of time, and the misaligned first and second cutting blades are prone to exceeding their original stroke under the drive of the drive body 1321, that is, the cutting blade 1315 exceeds the position where it was originally in the normal state when it finished cutting, which will lead to product defects. Therefore, the stroke of the first and second cutting blades is limited by adding a limiting component 15. Specifically, when the first and second cutting blades finish cutting the material 2, the first limiting member 1316 and the second limiting member 1317 both abut against the limiting component 15. The limiting component 15 is used to limit the movement of the first limiting member 1316 in the direction of the second limiting member 1317. At the same time, the limiting component 15 is also used to limit the movement of the second limiting member 1317 in the direction of the first limiting member 1316, thereby avoiding the product defects caused by the first and second cutting blades exceeding their original stroke after finishing cutting the material 2.

[0061] The limiting assembly 15 includes a first limiting nut 151, a second limiting nut 152, and a screw 153. The screw 153 is mounted on the frame 12. The first limiting nut 151 and the second limiting nut 152 are both screwed into the screw 153. The first limiting nut 151 is used to limit the stroke of the first limiting member 1316, and the second limiting nut 152 is used to limit the stroke of the second limiting member 1317. Due to production and assembly errors, the first limiting member 1316 may not abut against the first limiting nut 151 after the first cutter finishes shearing the material 2. This can be achieved by rotating the first limiting nut 151 to adjust its position on the screw 153, ensuring that the first limiting nut 151 and the first limiting member 1316 abut against each other. This limits the stroke of the first cutter, eliminating the gap between the first limiting member 1316 and the first limiting nut 151 after the first cutter finishes shearing the material 2 due to production and assembly errors. The second limiting nut 152 is screwed onto the screw 153, and its beneficial effect is similar to that of the first limiting nut 151. It also aims to eliminate the gap between the second limiting member 1317 and the second limiting nut 152 after the second cutter finishes shearing the material 2 due to production and assembly errors. This ensures the reliability of the first limiting nut 151 in limiting the stroke of the first cutter and the reliability of the second limiting nut 152 in limiting the stroke of the second cutter.

[0062] In addition, the shearing assembly 131 also includes a tension spring 133. One end of the tension spring 133 is connected to the mounting frame 1311, and the other end is connected to the frame 12. The tension spring 133 is used to drive the mounting frame 1311 to move away from the shearing station 121. By adding the tension spring 133 to apply a force to the mounting frame 1311 to move it away from the shearing station 121, the cutter 1315 can quickly return to its original position under the action of the tension spring 133 after completing the shearing of the workpiece. This means that the cutter 1315 can quickly leave the material 2 after completing the shearing, thereby reducing the contact time between the cutter 1315 and the material 2 and avoiding product defects caused by slow return of the cutter 1315.

[0063] According to an embodiment of the present invention, the tension spring 133 includes a first tension spring 1331 and a second tension spring 1332, wherein one end of the first tension spring 1331 is connected to the first limiting member 1316 and the other end of the first tension spring 1331 is connected to the second limiting member 1317; one end of the second tension spring 1332 is connected to the second limiting member 1317 and the other end of the second tension spring 1332 is connected to the frame 12. When the first cutter and the second cutter move toward each other, the first tension spring 1331 is compressed and the second tension spring 1332 is stretched. After the first cutter and the second cutter complete the shearing of the material 2, the first spring simultaneously applies a spring force away from the shearing station 121 to the first limiting block and the second limiting block, and the second spring applies a spring force away from the shearing station 121 to the second limiting block, so that the first cutter and the second cutter accelerate separation after completing the shearing of the material 2, reduce the contact time between the first cutter and the second cutter and the material 2, and avoid the first cutter and the second cutter causing product stringing due to slow return.

[0064] Let T be the heating temperature of heating module 1312. Then, 215℃ ≤ T ≤ 225℃. The cutting temperature of existing shearing machines is generally 260℃, resulting in significant material residue buildup on the cutting blade 1315, requiring regular cleaning by staff. Furthermore, the heating temperature of heating module 1312 can be set to 220℃. By adjusting the heating temperature, staff no longer need to regularly clean the cutting blade 1315, reducing labor intensity and saving manpower.

[0065] In addition, the shearing device 1 also includes an over-position detection component. The position of the mounting frame 1311 when the cutter 1315 completes the shearing of the material 2 is recorded as the second shearing position. The over-position detection component and the mounting frame 1311 are arranged along the movement direction of the cutter 1315 when shearing the material 2. The over-position detection component is used to detect whether the mounting frame 1311 exceeds the second shearing position. By setting the over-position detection component to detect the mounting frame 1311, it is determined whether the cutter 1315 installed on the mounting frame 1311 exceeds the normal stroke. If it exceeds the normal stroke, an alarm is triggered, and then the operator goes to troubleshoot the problem. Defective products caused by the cutter 1315 exceeding the normal stroke flow to the next workstation.

[0066] See Figure 1 and Figure 4 The gripper limiting component 142 is an adjustable gripper limiting component, used to adjust the distance between the two grippers 1411 when gripping the material 2. The gripper limiting component 142 can be a screw or bolt, etc. Taking a screw as an example, the screw is screwed to the gripper 1411. By rotating the screw, the distance between the two grippers 1411 when gripping the material 2 is adjusted, so that the grippers 1411 can grip materials 2 of different sizes and irregular shapes, expanding the applicability of the gripper assembly 141. It should be noted that the adjustment accuracy of the screw is 0.02mm.

[0067] Furthermore, the gripper limiting member 142 includes a gripper limiting member body and a buffer pad connected to each other, the buffer pad being used to abut against the gripper 1411. By adding the buffer pad to contact the gripper 1411, the gripper limiting member 142 provides cushioning and protection for the gripper 1411. The buffer pad can be a rubber pad.

[0068] Furthermore, the present invention also provides a shearing machine, which includes a storage bin and the aforementioned shearing device 1. The storage bin contains multiple material trays, and the gripper assembly 141 is used to move the sheared material 2 into the material trays. Since this shearing machine adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0069] In addition, the present invention also provides a control method for a shearing machine, see [link to relevant documentation]. Figure 4 , Figure 4 This is a flowchart illustrating a first embodiment of the control method for a shearing machine according to the present invention. The control method is applied to the shearing machine described above and includes:

[0070] S100, control the gripper assembly to clamp the material, and then move the material to the shearing station;

[0071] By replacing the traditional suction cup with a gripper assembly, irregularly shaped materials can be clamped to the shearing station by relying on the gripper assembly. It should be noted that the gripper assembly is controlled by a mechanical gripper loading and unloading module, thereby improving the automation level of the shearing machine and achieving numerical control and linkage.

[0072] S200, control the shearing mechanism to shear the material;

[0073] Control the shearing mechanism to shear the material located at the shearing station. And because the heating module moves backward by 10 mm compared with the existing heating module in terms of position, it can effectively avoid products with high undulations in shape, so that the shearing mechanism can shear irregularly shaped materials.

[0074] S300, obtain the quantity of the materials in the tray, and judge whether the quantity of the materials is not higher than the preset quantity of materials;

[0075] It can be by counting the unloading of the gripper assembly or by visually identifying to judge the quantity of the materials in the existing tray, so as to know whether the quantity of the materials in the tray is not higher than the preset quantity. After judgment, subsequent operations are performed, thus avoiding the occurrence of material stacking.

[0076] S310, if so, control the gripper assembly to move the material into the tray;

[0077] If the quantity of the materials in the tray is not higher than the preset quantity, it means that the tray can continue to hold materials and there will be no material stacking. Therefore, the gripper assembly can be controlled to move the sheared materials into the tray.

[0078] S310', if not, control the shearing machine to stop operating.

[0079] If the tray can hold 100 materials, and the preset quantity is taken as 97 for example. If there are already 98 materials in the tray, the materials held by the clamping assembly will not be put into the tray to avoid material stacking with the materials in the tray, and the shearing machine is controlled to stop operating, waiting for the staff to replace a new tray.

[0080] When the tray in the storage bin of the existing shearing machine is full of materials, if the staff does not replace the tray, it will cause continuous feeding into the full tray, thus leading to the occurrence of material stacking phenomenon and affecting the yield rate of products; while the present invention judges whether the tray can be fed by comparing the quantity of the materials in the tray with the preset quantity, thereby avoiding the occurrence of material stacking phenomenon. It should be noted that the preset quantity is less than the capacity of the tray.

[0081] See Figure 5 , Figure 5This is a flowchart illustrating a second embodiment of the control method for a shearing machine according to the present invention. The shearing machine further includes an alarm device and an identification device. The identification device is used to determine whether the material is placed in the tray. Step S310' includes:

[0082] S311', if not, then control the identification device to obtain the tray information of the material tray in the storage bin, and determine whether there is an empty tray in the storage bin that does not contain the material based on the tray information;

[0083] S312, if there is an empty material tray that does not contain the material, control the gripper assembly to move the material into the empty material tray;

[0084] S312' If there is no empty material tray without the material, control the alarm device to issue an alarm and then control the shearing machine to stop operating.

[0085] The identification device obtains information about the material trays, which allows it to determine whether there are empty trays in the storage bin. If there are empty trays, the gripper assembly places the material into the empty tray to prevent material accumulation. If there are no empty trays, an alarm is triggered to notify the staff to replace the trays in the storage bin. After the staff has replaced the trays, the alarm is deactivated and the shearing machine resumes normal operation.

[0086] See Figure 6 , Figure 6 This is a flowchart illustrating a third embodiment of the control method for a shearing machine according to the present invention. The shearing machine further includes a timing device, and step S312' includes:

[0087] S3121' If there is no empty material tray without the material, control the alarm device to issue an alarm, and obtain the timing time of the timing device to determine whether the timing time is not greater than the preset time;

[0088] S3122, if the timing time is not greater than the preset time, then control the identification device to continuously acquire the material tray information, and determine whether there is an empty material tray in the storage bin that does not contain the material based on the material tray information;

[0089] S3123, if so, control the gripper assembly to move the material into the tray;

[0090] S3123', if not, then execute the step of obtaining the timing time of the timing device and determining whether the timing time is not greater than the preset time.

[0091] S3122', If the timing time is greater than the preset time, then control the shearing machine to stop operating.

[0092] By allowing sufficient time for staff to change the material trays, the timing device starts when there are no empty material trays in the storage bin. The equipment will not stop within the preset time. If the staff completes the material tray replacement within the preset time, the equipment will continue to work, thus improving the working efficiency of the shearing machine.

[0093] According to an embodiment of the present invention, the shearing machine further includes a material conveying device, a conveying device, a positioning device, and a material detection device. The frame is provided with a loading position and a unloading position. The step S100 includes the following steps before:

[0094] S10, control the material conveying device to transport the material to the loading position;

[0095] S20, control the material detection device to determine whether the material exists at the feeding position;

[0096] S30, if so, control the conveying device to deliver the material to the material picking position;

[0097] S40, control the positioning device to position the material located at the material picking position.

[0098] The material conveying device delivers the material from the injection molding machine to the loading position. The material detection component then judges the material at the loading position. If the loading is successful, the control conveying device delivers the material at the loading position to the picking position. The control positioning device positions the material at the picking position so that the gripper assembly can grip the non-effective surface of the material.

[0099] According to an embodiment of the present invention, before step S10, the following steps are included: resetting the processing device of the shearing machine, checking the safety status of the shearing machine and the material, and after confirming that there are no errors, returning the motor to its original position, and then checking whether there is an alarm. If there is, S10 is performed after the alarm is cleared; if there is no alarm, S10 is executed directly.

[0100] According to another embodiment of the present invention, after the alarm device issues an alarm, staff members go to check the cause of the alarm, determine whether the alarm is caused by human error or equipment failure, troubleshoot the fault after confirming the cause of the alarm, reset the alarm signal after troubleshooting, and then press the equipment operation button again to complete the alarm handling, and then record the alarm situation.

[0101] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A control method for a shearing machine, characterized in that, The shearing machine control method is applied to a shearing machine, which includes a storage bin and a shearing device. The shearing device includes a frame, a shearing mechanism, and a transfer mechanism. The frame is provided with a shearing station. The shearing mechanism is used to shear the material located at the shearing station. The transfer mechanism includes a gripper assembly and a gripper limiting member connected to each other. The gripper assembly is mounted on the frame and is used to grip the material and move or release the material. The gripper assembly includes a body and two opposing grippers. The gripper limiting member is used to limit the distance between the two grippers when the grippers grip the material. The storage bin contains multiple trays. The gripper assembly is used to move the sheared material into the trays. The shearing machine also includes an alarm device and an identification device. The identification device is used to determine whether the trays contain the material. The shearing machine also includes a timing device. The control method of the shearing machine includes: The gripper assembly is controlled to hold the material, and then the material is moved to the shearing station; Control the shearing mechanism to shear the material; Obtain the quantity of material in the tray and determine whether the quantity of material is not higher than a preset quantity of material. If so, control the gripper assembly to move the material into the tray; If not, then control the shearing machine to stop operating; If not, the step of controlling the shearing machine to stop operating includes: If not, the identification device is controlled to obtain the tray information of the material tray in the storage bin, and the tray information is used to determine whether there is an empty tray in the storage bin that does not contain the material. If there is an empty tray without the material, the gripper assembly is controlled to move the material into the empty tray; if there is no empty tray without the material, the alarm device is controlled to sound an alarm, and then the shearing machine is controlled to stop operating. The steps of controlling the alarm device to issue an alarm and then controlling the shearing machine to stop operating if there is no empty material tray without the material are included: If there is no empty tray without the material, the alarm device is controlled to issue an alarm, and the timing time of the timing device is obtained to determine whether the timing time is not greater than a preset time. If the timing time is not greater than the preset time, the identification device is controlled to continuously acquire the material tray information, and the material tray information is used to determine whether there is an empty material tray in the storage bin that does not contain the material. If yes, then control the gripper assembly to move the material into the empty tray; if no, then execute the step of obtaining the timing time of the timing device and determining whether the timing time is not greater than a preset time. If the timing period exceeds the preset time, the shearing machine is controlled to stop operating.

2. The control method for the shearing machine according to claim 1, characterized in that, The shearing machine further includes a material conveying device, a conveying device, a positioning device, and a material detection device. The frame is provided with a loading position and a unloading position. Before the step of controlling the gripper assembly to clamp the material and then moving the material to the shearing station, the following steps are included: The material conveying device is controlled to transport the material to the loading position; The material detection device is controlled to determine whether the material exists at the feeding position; If so, control the conveying device to deliver the material to the picking position; The positioning device is controlled to position the material located at the material picking position.

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