Automatic cutting and blanking equipment
The fully automated cutting and blanking equipment solves the problems of low efficiency, high safety hazards, inaccurate implantation, difficult detection, and uncontrollable burrs in the in-mold injection molding production of micro hardware parts, and achieves efficient and stable fully automated production.
Patent Information
- Application Number
- CN202511810702.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-01-23
AI Technical Summary
Existing technologies for in-mold injection molding of micro-hardware parts suffer from problems such as low production efficiency, high safety risks, inaccurate material strip insertion, difficulty in detecting injection defects, and difficulty in controlling burrs at the cut.
An automatic cutting and unloading device was designed, which realizes fully automated production by using whole roll material strip. It includes mechanisms for roll material feeding, strip insertion, insertion detection, injection molding defect detection, product cutting and defect detection. The reverse tensioning module and stepping feeding module ensure vertical insertion of the strip material. Deep learning algorithm is used to detect injection molding defects, and the burrs on the cut are controlled to be ≤0.02mm by a precision cutting mechanism.
It has achieved fully automated production of miniature hardware parts, improving production efficiency and stability. The production capacity has increased from 500 PCS/H by manual operation to 200 PCS/H by equipment, ensuring accurate material insertion and smooth cuts, with a defect detection rate of 99.99%.
Smart Images
Figure CN121374984A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of injection molding, and particularly relates to an automatic cutting and blanking equipment. BACKGROUND
[0002] For in-mold injection & blanking of micro hardware, the product is small and thin, and several key processes need to be implemented, including accurate implantation of the material belt containing the product into the mold, material belt implantation detection, in-mold injection molding, water outlet, injection defect detection, blanking and cutting, and achieving a cutting burr of less than 0.02 mm. Each process has difficulties. The current market production method is to manually put a section of material belt into the injection molding machine, manually operate the mold injection, manually take out a small section of material belt from the mold inside the injection molding machine for defect detection, and then put it into the stamping mold for blanking and cutting. The production efficiency is low and the safety hazard is high. There is a great gap in the domestic full-automatic equipment for this type of product, and there is great development potential. In the prior art, the material belt is implanted into the mold in the vertical direction, and due to phenomena such as deformation and bending of the material belt, accurate implantation cannot be achieved. Moreover, there are many types of injection defects, and detection is difficult. The product is small and thin, and the cutting burr is not easy to control.
[0003] Therefore, the present application aims to provide an automatic cutting and blanking equipment, which is a full-automatic production equipment specially designed for the in-mold injection and blanking of micro hardware. The hardware is in the form of a whole roll of material belt, and the whole process from the beginning of injection to the final blanking is realized automatically. A new process is adopted to ensure accurate implantation of the material belt, smooth product cut, and control of the cutting burr to be less than or equal to 0.02 mm. The equipment can realize full-automatic production, and compared with manual operation, the efficiency and stability have been greatly improved (manual operation capacity: 500 PCS / H, equipment capacity: 200 PCS / H). SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides an automatic cutting and blanking equipment, which is a full-automatic production equipment specially designed for the in-mold injection and blanking of micro hardware. The hardware is in the form of a whole roll of material belt, and the whole process from the beginning of injection to the final blanking is realized automatically. A new process is adopted to ensure accurate implantation of the material belt, smooth product cut, and control of the cutting burr to be less than or equal to 0.02 mm. The equipment can realize full-automatic production, and compared with manual operation, the efficiency and stability have been greatly improved (manual operation capacity: 500 PCS / H, equipment capacity: 200 PCS / H).
[0005] To solve the above problems, the technical scheme of the present application is as follows: The application discloses an automatic cutting and blanking equipment, which comprises a control system and a roll material feeding mechanism, a material belt implanting mechanism, a material belt implanting detection mechanism, an injection molding defect detection mechanism, a product cutting mechanism and a product defect and size detection mechanism connected with the control system, wherein the material belt implanting mechanism is arranged in an injection mold, a whole material belt with hardware is fed from the roll material feeding mechanism, the material belt is implanted into the injection mold vertically through the material belt implanting mechanism, the injection mold is used for injection molding after the material belt implanting detection mechanism detects the position, the product cutting mechanism is used for cutting after the injection molding defect detection mechanism detects, and the hardware is classified and fed after the product defect and size detection mechanism detects.
[0006] As an improvement of the automatic cutting and blanking equipment, the roll material feeding mechanism comprises a first support, a tension control wheel arranged on the first support and a guide support.
[0007] As an improvement of the automatic cutting and blanking equipment, the material belt implanting mechanism comprises a reverse tensioning module and a step feeding module, the reverse tensioning module is arranged above the step feeding module, and the tension of the to-be-injected material belt part is guaranteed through the mode of pulling upward and pulling downward; the reverse tensioning module comprises a magnetic coupling, a first gear connected with the magnetic coupling, a first rack engaged with the first gear and a first clamping jig connected with the first rack; the step feeding module comprises a servo motor, a second gear connected with the servo motor, a second rack engaged with the second gear and a second clamping jig connected with the second rack.
[0008] As an improvement of the automatic cutting and blanking equipment, the material belt implanting mechanism further comprises an ejection plate and a driving mechanism capable of driving the ejection plate to move forward and backward, the ejection plate is arranged between the reverse tensioning module and the step feeding module, and in use, the to-be-injected material belt part is located on the ejection plate; before injection molding, the driving mechanism drives the ejection plate to retreat.
[0009] As an improvement of the automatic cutting and blanking equipment, the ejection plate is provided with a pin, and the material belt is provided with a through hole through which the pin passes.
[0010] As an improvement of the automatic cutting and blanking equipment, the material belt implanting detection mechanism comprises a first X-axis moving mechanism, a first Z-axis moving mechanism arranged on the first X-axis moving mechanism and a first CCD arranged on the first Z-axis moving mechanism, which are used for detecting whether the position of the to-be-injected material belt part is accurate; if not, the position of the to-be-injected material belt part is adjusted through the reverse tensioning module and / or the step feeding module, and the ejection plate retreats after adjustment; if yes, the ejection plate directly retreats.
[0011] As an improvement of the automatic cutting and blanking equipment of the present invention, the equipment further includes a water inlet mechanism, which includes a second Z-axis moving mechanism disposed on the first X-axis moving mechanism and a serrated gripper disposed on the second Z-axis moving mechanism, and the water inlet mechanism removes the sprue from the injection mold.
[0012] As an improvement of the automatic cutting and blanking equipment of the present invention, the injection molding defect detection mechanism includes a second support and a second CCD set on the second support, and the data collected by the second CCD is transmitted to the control system. The control system uses a deep learning algorithm to detect a variety of injection molding defects.
[0013] As an improvement of the automatic cutting and blanking equipment of the present invention, the product cutting mechanism includes a base plate, a guide traction mechanism disposed on the base plate, a guide pin, a stripping plate, a stop plate, an upper clamping plate, an upper pad plate and an upper mold base disposed sequentially above the base plate, and an empty material strip die-cutting mechanism. The empty material strip die-cutting mechanism includes a cylinder, a cutting plate and a cutter driven by the cylinder. When the empty material strip reaches the empty material strip die-cutting mechanism, the cylinder drives the cutter to move toward the empty material strip, and finally cuts the empty material strip into segments on the cutting plate.
[0014] As an improvement of the automatic cutting and blanking equipment of the present invention, the product defect and size detection mechanism includes a third CCD, a suction component, and a storage box disposed at the bottom. The suction component includes a second X-axis moving mechanism, a lifting cylinder disposed on the second X-axis moving mechanism, a suction cup gripper connected to the lifting cylinder, and a vacuum nozzle connected to the suction cup gripper. The storage box includes an NG product storage box, a qualified product storage box, and an injection molding defect product storage box. The suction component picks up the cut product and detects it on the third CCD, and then feeds the product into the corresponding storage box according to the detection result.
[0015] Compared with existing technologies, this invention, through its ingenious structural design, can achieve at least the following beneficial effects: First, existing technology uses manual segmented strip production, while the present invention uses whole roll strips to automate the entire process of metal parts from the start of injection molding to the final unloading. Second, in the existing technology, the material strip cannot be accurately implanted due to deformation and bending. The present invention adopts a new process (the material strip is implanted into the mold from the vertical direction and pulled down and pulled up) to ensure accurate implantation of the material strip. Third, injection molding defects are numerous and difficult to detect. By using deep learning algorithms, a defect detection rate of 99.99% can be achieved.
[0016] Fourth, the product is small and thin, and the cutting burrs are difficult to control. The product produced by this invention has a smooth cut and the cutting burrs can be controlled to ≤0.02mm. Attached Figure Description
[0017] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.
[0018] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.
[0019] Figure 3 This is a top view of the structure of the present invention.
[0020] Figure 4 This is a three-dimensional structural diagram of the bracket and tension control wheel in this invention.
[0021] Figure 5 This is a three-dimensional structural diagram of the guide bracket in this invention.
[0022] Figure 6 This is one of the three-dimensional structural schematic diagrams of the material strip implantation mechanism in this invention.
[0023] Figure 7 This is the second three-dimensional structural schematic diagram of the material strip implantation mechanism in this invention.
[0024] Figure 8 This is one of the three-dimensional structural schematic diagrams of the injection molding defect detection mechanism, product cutting mechanism, and product defect and size detection mechanism in this invention.
[0025] Figure 9 The second three-dimensional structural schematic diagram of the injection molding defect detection mechanism, product cutting mechanism, and product defect and size detection mechanism in this invention.
[0026] Figure 10 This is a three-dimensional structural diagram of the product defect and size detection mechanism in this invention.
[0027] Figure 11 This is a partial structural diagram of the product cutting mechanism in this invention.
[0028] Figure 12 This is a schematic diagram of the material strip implantation detection mechanism and the water intake mechanism in this invention. Detailed Implementation
[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0031] Furthermore, the use of terms such as "first" and "second" in this invention is 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.
[0032] like Figures 1-12 As shown, the present invention provides an automatic cutting and blanking device, including a control system and a roll feeding mechanism 1, a strip insertion mechanism 2, a strip insertion detection mechanism 3, an injection molding defect detection mechanism 4, a product cutting mechanism 5, and a product defect and size detection mechanism 6 connected to the control system. The strip insertion mechanism 2 is set inside the injection mold. After the whole roll of strip with hardware is fed from the roll feeding mechanism 1, it is vertically inserted into the injection mold through the strip insertion mechanism 2. After being detected in place by the strip insertion detection mechanism 3, it is injected by the injection mold to ensure injection accuracy. After being detected by the injection molding defect detection mechanism 4, it enters the product cutting mechanism 5 for cutting. Finally, after being detected by the product defect and size detection mechanism 6, the hardware is classified and fed.
[0033] The roll feeding mechanism 1 includes a first bracket 11, a tension control wheel 12 mounted on the first bracket 11, and a guide bracket 13. In use, the entire roll of material with hardware is fed onto the tension control wheel 12, and the guide bracket 3 guides the material into the material insertion mechanism 2.
[0034] The strip insertion mechanism 2 includes a reverse tensioning module 21 and a stepping feeding module 22. The reverse tensioning module 21 is positioned above the stepping feeding module 22 and ensures the tension of the plastic strip to be injected by pulling up and down. The reverse tensioning module 21 includes a magnetic coupling 211, a first gear 212 connected to the magnetic coupling 211, a first rack meshing with the first gear 212, and a first clamping fixture 213 connected to the first rack. The stepping feeding module 22 includes a servo motor 221, a second gear 222 connected to the servo motor 221, a second rack meshing with the second gear 222, and a second clamping fixture 223 connected to the second rack. In the prior art, the strip cannot be accurately inserted due to deformation and bending. This invention uses a new process (the strip is inserted into the mold vertically and pulled down and up) to ensure accurate strip insertion.
[0035] The strip insertion mechanism 2 also includes an ejector plate 23 and a drive mechanism (not shown) that can move the ejector plate 23 back and forth. The ejector plate 23 is disposed between the reverse tensioning module 21 and the stepping feeding module 22. The drive mechanism is disposed inside the injection mold and can be a cylinder or a motor, as long as it can push the ejector plate 23 forward and pull it backward. In use, the strip to be injected is located on the ejector plate 23. Before injection, the drive mechanism drives the ejector plate 23 backward.
[0036] The ejector plate 23 is equipped with a pin 231, and the strip has a through hole through which the pin 231 passes, used to limit and fix the plastic strip to be injected. If there is a positional deviation between the through hole and the pin 231, adjustment is required.
[0037] The material strip implantation detection mechanism 3 includes a first X-axis moving mechanism 31, a first Z-axis moving mechanism 32 disposed on the first X-axis moving mechanism 31, and a first CCD 33 disposed on the first Z-axis moving mechanism 32. It is used to detect whether the position of the plastic strip to be injected is accurate. If it is not accurate, the position of the plastic strip to be injected is adjusted by the reverse tensioning module 21 and / or the stepping feeding module 22. After the adjustment is completed, the ejector plate 23 retracts. If it is accurate, the ejector plate 23 retracts directly.
[0038] The equipment also includes a water intake mechanism 7, which includes a second Z-axis moving mechanism 71 mounted on the first X-axis moving mechanism 31 and a serrated gripper 72 mounted on the second Z-axis moving mechanism 71. The serrated gripper 73 of the water intake mechanism 7 removes the sprue from the injection mold, facilitating the injection molding of a batch of hardware parts.
[0039] The injection molding defect detection mechanism 4 includes a second support 41 and a second CCD 42 mounted on the second support 41. The data collected by the second CCD 442 is transmitted to the control system, which uses a deep learning algorithm to detect various injection molding defects. Because injection molding defects are numerous and difficult to detect, this invention uses a deep learning algorithm to achieve a 99.99% defect detection rate.
[0040] The product cutting mechanism 5 includes a base plate 51, a guide traction mechanism 52 disposed on the base plate 51, a guide pin 53, a stripper plate 54, a stop plate 55, an upper clamping plate 56, an upper pad plate 57 and an upper mold base 58 disposed sequentially above the base plate 51, and an empty material strip die-cutting mechanism 59. Since small hardware products are small and thin, it is difficult to control the cutting burrs. This invention ensures the accuracy of the cutting mechanism, so that the cut of the produced products is flat and the cutting burrs can be controlled to ≤0.02mm.
[0041] The empty strip die-cutting mechanism 59 includes a cylinder, a cutting plate, and a cutter driven by the cylinder. When the empty strip arrives at the empty strip die-cutting mechanism 59, the cylinder drives the cutter to move towards the empty strip, and finally cuts the empty strip into segments on the cutting plate. The empty strip is cut into segments by the empty strip die-cutting mechanism 59.
[0042] The product defect and size detection mechanism 6 includes a third CCD 61 located at the bottom, a suction component 62, and a storage box 63. The suction component 62 includes a second X-axis moving mechanism 621, a lifting cylinder 622 located on the second X-axis moving mechanism 621, a suction cup gripper 623 connected to the lifting cylinder 622, and a vacuum nozzle connected to the suction cup gripper 623. The storage box 63 includes an NG product storage box 631, a qualified product storage box 632, and an injection molding defect product storage box 633. The suction component 62 picks up the cut products and sends them to the third CCD 661 for detection. The control system, according to the command of the detection mechanism, directs the suction component 62 to feed the products into the corresponding storage boxes.
[0043] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.
Claims
1. An automatic cutting and blanking device, characterized in that, The system includes a control system and a roll feeding mechanism, a strip insertion mechanism, a strip insertion detection mechanism, an injection molding defect detection mechanism, a product cutting mechanism, and a product defect and size detection mechanism connected to the control system. The strip insertion mechanism is located inside the injection mold. After the roll of strip with hardware is fed from the roll feeding mechanism, it is vertically inserted into the injection mold by the strip insertion mechanism. After being detected by the strip insertion detection mechanism, it is injected by the injection mold. After being detected by the injection molding defect detection mechanism, it enters the product cutting mechanism for cutting. Finally, after being detected by the product defect and size detection mechanism, the hardware is classified and fed into the system.
2. The automatic cutting and blanking equipment according to claim 1, characterized in that: The coil feeding mechanism includes a first support, a tension control wheel and a guide support mounted on the first support.
3. The automatic cutting and blanking equipment according to claim 1, characterized in that: The material strip insertion mechanism includes a reverse tensioning module and a stepping feeding module. The reverse tensioning module is positioned above the stepping feeding module and ensures the tension of the plastic strip to be injected by pulling up and down. The reverse tensioning module includes a magnetic coupling, a first gear connected to the magnetic coupling, a first rack meshing with the first gear, and a first clamping fixture connected to the first rack. The stepping feeding module includes a servo motor, a second gear connected to the servo motor, a second rack meshing with the second gear, and a second clamping fixture connected to the second rack.
4. The automatic cutting and blanking equipment according to claim 3, characterized in that: The material strip insertion mechanism also includes an ejector plate and a drive mechanism that can drive the ejector plate to move back and forth. The ejector plate is disposed between the reverse tension module and the stepping feeding module. In use, the part of the strip to be injected with plastic is located on the ejector plate. Before injection molding, the drive mechanism drives the ejector plate to move backward.
5. The automatic cutting and blanking equipment according to claim 4, characterized in that: The ejector plate is provided with a pin, and the strip is provided with a through hole through which the pin can pass.
6. The automatic cutting and blanking equipment according to claim 4, characterized in that: The material strip implantation detection mechanism includes a first X-axis moving mechanism, a first Z-axis moving mechanism disposed on the first X-axis moving mechanism, and a first CCD disposed on the first Z-axis moving mechanism. It is used to detect whether the position of the plastic strip to be injected is accurate. If it is not accurate, the position of the plastic strip to be injected is adjusted by the reverse tensioning module and / or the stepping feeding module. After adjustment, the ejector plate retracts. If it is accurate, the ejector plate retracts directly.
7. The automatic cutting and blanking equipment according to claim 6, characterized in that: The device also includes a water intake mechanism, which includes a second Z-axis moving mechanism mounted on the first X-axis moving mechanism and a serrated gripper mounted on the second Z-axis moving mechanism. The water intake mechanism removes the sprue from the injection mold.
8. The automatic cutting and blanking equipment according to claim 1, characterized in that: The injection molding defect detection mechanism includes a second support and a second CCD mounted on the second support. The data collected by the second CCD is transmitted to the control system, which uses a deep learning algorithm to detect various injection molding defects.
9. The automatic cutting and blanking equipment according to claim 1, characterized in that: The product cutting mechanism includes a base plate, a guide traction mechanism disposed on the base plate, a guide pin, a stripper plate, a stop plate, an upper clamping plate, an upper pad plate, and an upper mold base disposed sequentially above the base plate, and an empty strip die-cutting mechanism. The empty strip die-cutting mechanism includes a cylinder, a cutting plate, and a cutter driven by the cylinder. When the empty strip reaches the empty strip die-cutting mechanism, the cylinder drives the cutter to move toward the empty strip, and finally cuts the empty strip into segments on the cutting plate.
10. The automatic cutting and blanking equipment according to claim 1, characterized in that: The product defect and size detection mechanism includes a third CCD located at the bottom, a material suction component, and a storage box. The material suction component includes a second X-axis moving mechanism, a lifting cylinder located on the second X-axis moving mechanism, a suction cup gripper connected to the lifting cylinder, and a vacuum nozzle connected to the suction cup gripper. The storage box includes an NG product storage box, a qualified product storage box, and an injection molding defect product storage box. The material suction component picks up the cut product and detects it on the third CCD, and then feeds the product into the corresponding storage box according to the detection result.