Ejecting device and stamping equipment

Abstract

The utility model discloses a material ejecting device and stamping equipment, and relates to the technical field of material ejecting devices.The material ejecting device comprises a mounting base, a fastening bolt, a telescopic air cylinder and a jacking component, a first through hole and a second through hole are formed in the mounting base, the fastening bolt penetrates through the first through hole to be installed on a lower die base of a stamping and drawing die, and the telescopic air cylinder penetrates through the second through hole to be installed on the lower die base of the stamping and drawing die; a cylinder body of the telescopic air cylinder is installed on the installation base, an extension shaft of the telescopic air cylinder penetrates through the second through hole and can extend upwards, the jacking component comprises a jacking rod and a rubber head, one end of the jacking rod is installed on the extension shaft of the telescopic air cylinder, and the rubber head is installed at the other end of the jacking rod and used for abutting against materials. According to the drawing forming device, materials are placed on the blank holder, the materials deform downwards due to the action of gravity at the positions where the materials are not supported, the material ejecting device ejects the deformed positions of the materials upwards, in this way, it is not needed to slow down the feeding speed of the materials, the materials are prevented from collapsing, and therefore the production efficiency of the drawing forming process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of ejector devices, and in particular to an ejector device and a stamping equipment. Background Technology

[0002] In the drawing process for stamping products, when flat material is fed into the die, the blank holder is responsible for supporting the material. However, due to insufficient rigidity and the limited support range of the blank holder, the flat material is prone to collapsing in the middle. This can lead to changes in the forming state of the product during stamping, potentially causing wrinkling and cracking.

[0003] To improve the yield rate of finished products, existing technologies reduce the material input speed to reduce the impact force during material input and prevent the material from collapsing in the middle. However, this method reduces the overall production efficiency of the drawing process.

[0004] Therefore, it is necessary to provide a new ejector device and stamping equipment to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to propose an ejector device and a stamping equipment, which aims to improve the technical problem of low production efficiency in the existing long-draw forming process of stamped products.

[0006] To achieve the above objectives, according to one aspect of the present invention, a top-feeding device is provided, comprising:

[0007] Mounting base, wherein a first through hole and a second through hole are formed on the mounting base;

[0008] Fastening bolts, which pass through the first through hole for mounting on the lower die base of the stamping and drawing die;

[0009] A telescopic cylinder, wherein the cylinder body of the telescopic cylinder is mounted on the mounting base, the extension shaft of the telescopic cylinder passes through the second through hole, and the extension shaft of the telescopic cylinder can extend upward;

[0010] A lifting component, comprising a lifting rod and a rubber head, wherein one end of the lifting rod is mounted on the extension shaft of the telescopic cylinder, and the rubber head is mounted on the other end of the lifting rod for contacting the material.

[0011] In one embodiment, the lifting rod includes a first connecting rod and a second connecting rod. The first connecting rod forms a telescopic hole, and the second connecting rod is telescopically installed in the telescopic hole. The rubber head is installed on the first end of the second connecting rod away from the first connecting rod, and the end of the first connecting rod away from the second connecting rod is installed on the extension shaft of the telescopic cylinder.

[0012] In one embodiment, the telescopic hole is a threaded hole, and the outer surface of the second connecting rod is formed with an external thread. The second connecting rod is threadedly connected to the threaded hole through the external thread.

[0013] In one embodiment, the first connecting rod has a locking hole connected to the telescopic hole, the second connecting rod has abutting grooves spaced apart along the length of the second connecting rod, and the ejector device further includes a fixing member, which passes through the locking hole and is installed in the abutting groove, with one end of the locking hole abutting against the bottom of the abutting groove.

[0014] In one embodiment, the top surface of the rubber head is an arc-shaped convex surface, and the top surface of the rubber head is provided with anti-slip texture.

[0015] In one embodiment, the top material device further includes an air circuit control component, which includes a pressure sensor, a solenoid valve, and a controller. The solenoid valve is used to connect the telescopic cylinder to an external air source. The pressure sensor is installed at the end of the rubber head away from the lifting rod and monitors the pressure on the rubber head in real time. The controller is connected to the pressure sensor and the solenoid valve respectively.

[0016] In one embodiment, the ejector device further includes a proximity switch, which is mounted on the cylinder body of the telescopic cylinder. The proximity switch is used to detect the extension length of the telescopic cylinder in real time and is used to connect to the stamping equipment via a signal connection.

[0017] In one embodiment, the rubber head has a buffer groove, and the lifting component further includes a buffer spring, one end of which is connected to the lifting rod, and the other end of which is connected to the bottom of the buffer groove.

[0018] In one embodiment, the first through hole is an oblong hole, and the oblong hole is arranged in an arc shape.

[0019] According to another aspect of the present invention, the present invention also provides a stamping device, including a stamping and drawing die and the aforementioned ejector device. The stamping and drawing die includes a guide post, a lower die base, an upper die base, and a blank holder. The guide post is telescopically mounted on the lower die base, the blank holder is mounted on the guide post, and the blank holder is used to support the material. The upper die base is used to abut against the blank holder. The ejector device is mounted on the lower die base, and the lifting direction of the ejector device is opposite to the pressing direction of the blank holder.

[0020] In the above scheme, the ejector device includes a mounting base, fastening bolts, a telescopic cylinder, and an ejector component. The mounting base has a first through hole and a second through hole. The fastening bolts pass through the first through hole and are used to install on the lower die base of the stamping and drawing die. The cylinder body of the telescopic cylinder is installed on the mounting base, and the extension shaft of the telescopic cylinder passes through the second through hole. The extension shaft of the telescopic cylinder can extend upward. The ejector component includes an ejector rod and a rubber head. One end of the ejector rod is installed on the extension shaft of the telescopic cylinder, and the rubber head is installed on the other end of the ejector rod for contact with the material. Specifically, the cylinder body of the telescopic cylinder is installed on the mounting base, with the extension shaft of the telescopic cylinder passing through the second through hole. The mounting base is then fitted onto the lower die base, and the fastening bolts are passed through the first through hole and tightened onto the lower die base. A lifting rod is then installed on the extension shaft of the telescopic cylinder, with a rubber head mounted on the top of the lifting rod. This completes the installation of the ejector device. During drawing, the material is fed in and placed on the blank holder of the stamping and drawing die. Since the blank holder has a limited area, it cannot fully support the material. Therefore, the material in the unsupported position will be subjected to gravity. When the material deforms downwards, the telescopic cylinder is activated, extending its shaft so that the rubber head comes into contact with the deformed area. This contact cushions the material and prevents damage. The deformed area is then lifted upwards, causing it to bulge. The telescopic cylinder then retracts, and the upper die of the stamping and drawing die presses down, completing the material drawing process. This eliminates the need to slow down the material feeding speed to prevent sagging, significantly improving the production efficiency of the entire stamping and drawing process. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of an embodiment of the feeding device provided by this utility model;

[0023] Figure 2 A schematic diagram of another embodiment of the top-feeding device provided by this utility model;

[0024] Figure 3 A schematic diagram of the structure of an embodiment of the lifting rod provided by this utility model;

[0025] Figure 4 A schematic diagram of another embodiment of the lifting rod provided by this utility model;

[0026] Figure 5 A schematic diagram of the structure of an embodiment of the lifting component provided by this utility model;

[0027] Figure 6 A schematic diagram of an embodiment of the mounting base provided by this utility model.

[0028] Explanation of icon numbers:

[0029] 100. Ejector device; 1. Mounting base; 2. Fastening bolt; 3. Telescopic cylinder; 4. Lifting component; 11. First through hole; 12. Second through hole; 41. Lifting rod; 42. Rubber head; 411. First connecting rod; 412. Second connecting rod; 411a. Telescopic hole; 411b. Locking hole; 412a. Abutment groove; 5. Fixing component; 6. Proximity switch; 421. Buffer groove; 43. Buffer spring; 7. Pressure sensor.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions 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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] To achieve the above objectives, according to one aspect of this utility model, please refer to... Figure 1 and Figure 6This utility model proposes a material lifting device 100, which includes a mounting base 1, a fastening bolt 2, a telescopic cylinder 3, and a lifting component 4. The mounting base 1 has a first through hole 11 and a second through hole 12. The fastening bolt 2 passes through the first through hole 11 and is used to install on the lower die base of the stamping and drawing die. The cylinder body of the telescopic cylinder 3 is installed on the mounting base 1, and the extension shaft of the telescopic cylinder 3 passes through the second through hole 12. The extension shaft of the telescopic cylinder 3 can extend upward. The lifting component 4 includes a lifting rod 41 and a rubber head 42. One end of the lifting rod 41 is installed on the extension shaft of the telescopic cylinder 3, and the rubber head 42 is installed on the other end of the lifting rod 41 for contacting the material. Specifically, the cylinder body of the telescopic cylinder 3 is installed on the mounting base 1, and the extension shaft of the telescopic cylinder 3 passes through the second through hole 12. Then, the mounting base 1 is attached to the lower die base, and the fastening bolt 2 is passed through the first through hole 11 and locked onto the lower die base. Then, the lifting rod 41 is installed on the extension shaft of the telescopic cylinder 3, and a rubber head 42 is installed on the top of the lifting rod 41. This completes the installation of the ejector device 100. When drawing is performed, the material is fed in, so that the material is placed on the blank holder of the stamping and drawing die. At this time, because the area of ​​the blank holder is limited, it cannot fully support the material, and the rigidity of the material itself is insufficient. Thus, the material does not... When there is support, the material will deform downwards due to gravity. At this time, the telescopic cylinder 3 is activated, and the extension shaft of the telescopic cylinder 3 extends, so that the rubber head 42 comes into contact with the deformed part of the material. The contact between the rubber head 42 and the material can buffer the material and prevent damage. This will push the deformed part of the material upwards, and the deformed part of the material will bulge upwards. Then the extension shaft of the telescopic cylinder 3 retracts, and the upper die of the stamping and drawing die presses down to achieve the material drawing and forming. This eliminates the need to slow down the material feeding speed to prevent the material from collapsing, thus greatly improving the production efficiency of the entire stamping and drawing forming process.

[0035] Furthermore, a guide structure is provided between the lifting rod 41 and the rubber head 42. The guide structure includes a guide post fixed to the end of the lifting rod 41 and a corresponding guide groove at the bottom of the rubber head 42, with the guide post and guide groove slidingly engaged. This ensures that the rubber head 42 contacts the material perpendicularly during the lifting process, avoiding deflection.

[0036] Furthermore, the lifting component 4 and the extension shaft of the telescopic cylinder 3 are connected by a quick-release connector. The quick-release connector includes a snap-fit ​​seat fixed on the extension shaft and an elastic pawl at the end of the lifting rod 41, which can be detachably locked with the snap-fit ​​seat. This enables the lifting component 4 and the extension shaft of the telescopic cylinder 3 to be quickly installed and detached.

[0037] Please see Figure 3 and Figure 4In one embodiment, the lifting rod 41 includes a first connecting rod 411 and a second connecting rod 412. The first connecting rod 411 forms a telescopic hole 411a, and the second connecting rod 412 is telescopically installed in the telescopic hole 411a. A rubber head 42 is installed at the first end of the second connecting rod 412 away from the first connecting rod 411, and the end of the first connecting rod 411 away from the second connecting rod 412 is installed on the extension shaft of the telescopic cylinder 3. By telescopically installing the second connecting rod 412 in the telescopic hole 411a of the first connecting rod 411, the height of the entire lifting component 4 can be adjusted more conveniently without replacing telescopic cylinders 3 with different strokes, to adapt to the processing needs of materials of different thicknesses or shapes, increasing the flexibility of the device.

[0038] Please see Figure 3 In one embodiment, the telescopic hole 411a is a threaded hole, and the outer surface of the second connecting rod 412 has an external thread. The second connecting rod 412 is threadedly connected to the threaded hole through the external thread. Adjusting the length of the lifting rod 41 via the threaded connection allows the second connecting rod 412 to be adjusted in minute increments, thereby achieving precise control of the lifting height. Furthermore, the threaded connection has a self-locking characteristic, ensuring a secure fixation after adjustment, preventing the second connecting rod 412 from loosening or shifting due to vibration or external force. This stability ensures the reliability of the lifting device 100 during long-term operation. The threaded connection design makes the installation and removal of the second connecting rod 412 simple and quick, requiring no additional tools for adjustment or replacement. During maintenance, the second connecting rod 412 can be quickly disassembled or the rubber head 42 replaced, reducing maintenance costs and downtime.

[0039] Please see Figure 4In one embodiment, the first connecting rod 411 has a locking hole 411b connected to the telescopic hole 411a, and the second connecting rod 412 has abutment grooves 412a spaced apart along the length of the second connecting rod 412. The lifting device 100 also includes a fixing member 5, which passes through the locking hole 411b and is installed in the abutment groove 412a. One end of the locking hole 411b abuts against the bottom of the abutment groove 412a. When the fixing member 5 passes through the locking hole 411b and engages with the specific abutment groove 412a, the relative position between the first connecting rod 411 and the second connecting rod 412 is securely locked, preventing accidental movement or loosening during operation. This locking mechanism helps reduce the impact of vibrations generated during equipment operation on the lifting component 4, thereby improving the stability and reliability of the overall structure. The multiple abutment grooves 412a arranged along the length of the second connecting rod 412 allow users to select different levels for height adjustment according to actual needs, providing a wider adjustment range and greater flexibility. The locking hole 411b and the abutment groove 412a make the disassembly and reinstallation of the second connecting rod 412 simple and quick, which facilitates daily inspection, maintenance or replacement of worn parts. This reduces downtime caused by maintenance and improves production efficiency.

[0040] Please see Figure 2 In one embodiment, the top surface of the rubber head 42 is an arc-shaped convex surface, and the top surface of the rubber head is provided with anti-slip texture. The arc-shaped convex surface design allows the rubber head 42 to better conform to the material surface when in contact with the material, especially for materials that are not completely flat or have slight curvature, providing more uniform support and reducing local stress concentration. The arc design increases the adaptability of the rubber head 42 to materials of different shapes, making it suitable for more types and shapes of components. The arc-shaped convex surface helps to distribute the force more evenly on the material surface, thereby reducing the risk of damage caused by direct point contact. The rubber material itself has good elasticity and cushioning capacity, and combined with the arc design, it can further reduce the impact and damage to the material during the lifting process. The anti-slip texture on the top surface of the rubber head 42 can significantly increase the friction when in contact with the material, effectively preventing the material from sliding or shifting during the lifting process.

[0041] Please see Figure 1In one embodiment, the top-feeding device 100 further includes a pneumatic control component, which includes a pressure sensor 7, a solenoid valve, and a controller. The solenoid valve connects the telescopic cylinder 3 to an external air source. The pressure sensor 7 is installed at the end of the rubber head 42 away from the lifting rod 41 and is used to monitor the pressure on the rubber head 42 in real time. The controller is connected to the pressure sensor 7 and the solenoid valve respectively. By installing the pressure sensor 7 at the end of the rubber head 42 away from the lifting rod 41, the pressure on the rubber head 42 can be monitored in real time, and the data can be fed back to the controller. This allows the system to make precise adjustments based on the actual contact force. The controller can dynamically adjust the opening and closing state of the solenoid valve based on the data from the pressure sensor 7, thereby controlling the action of the telescopic cylinder 3 to ensure that an appropriate lifting force is applied to the material and to avoid damage or deformation of the material due to excessive lifting. When the detected pressure exceeds a preset safety threshold, the controller can automatically instruct the solenoid valve to close, stopping the telescopic cylinder 3 from further action, effectively preventing overload damage to the equipment and materials. The intelligent control system composed of the pressure sensor 7, the solenoid valve, and the controller realizes automated management of the top-feeding process, reduces the need for manual intervention, and improves the overall efficiency of the production line.

[0042] Please see Figure 1 and Figure 2 In one embodiment, the top-loading device 100 further includes a proximity switch 6, which is mounted on the cylinder body of the telescopic cylinder 3. The proximity switch 6 is used to detect the extension length of the telescopic cylinder 3 in real time and is used to connect to the stamping equipment via a signal connection. The proximity switch 6 can monitor the extension length of the telescopic cylinder 3 in real time, ensuring that the lifting component 4 can accurately reach the predetermined position. By feeding back the detected information to the control system, the automatic adjustment of the telescopic cylinder 3's movement can be achieved. When the telescopic cylinder 3 reaches the preset position, the system can automatically stop or switch actions without manual intervention, thereby simplifying the operation process and reducing the possibility of errors. The proximity switch 6 can help prevent mechanical damage or other safety hazards caused by the telescopic cylinder 3 over-extension. Once the cylinder is detected to be approaching its physical limit, the stamping equipment can be stopped immediately, protecting the equipment and personnel safety.

[0043] Please see Figure 5 In one embodiment, the rubber head 42 has a buffer groove 421, and the lifting component 4 also includes a buffer spring 43. One end of the buffer spring 43 is connected to the lifting rod 41, and the other end of the buffer spring 43 is connected to the bottom of the buffer groove 421. When the material lifting device 100 is working, the rubber head 42 may generate an instantaneous impact force when it comes into contact with the material. The buffer spring 43 can absorb and disperse these impact forces, further protecting the material from damage. By providing an additional buffer layer, the contact between the rubber head 42 and the material can be made gentler and smoother, avoiding surface damage or deformation of the material that may be caused by hard collisions.

[0044] Please see Figure 6 In one embodiment, the first through hole 11 is an oblong hole, and the oblong hole is arranged in an arc shape. Since materials of different shapes will sag and deform at different positions, setting the first through hole 11 as an oblong hole can expand the position range of the ejector device 100 on the lower mold base to accommodate materials of different shapes and ensure that the sag position of the material can be lifted.

[0045] According to another aspect of this utility model, this utility model also provides a stamping device, including a stamping and drawing die and the aforementioned ejector device 100. The stamping and drawing die includes a guide post, a lower die base, an upper die base, and a blank holder. The guide post is telescopically mounted on the lower die base, the blank holder is mounted on the guide post, and the blank holder is used to support the material. The upper die base is used to abut against the blank holder, and the ejector device 100 is mounted on the lower die base. The lifting direction of the ejector device 100 is opposite to the pressing direction of the blank holder. Since the stamping device includes all embodiments of the aforementioned ejector device 100, it possesses at least all the beneficial effects brought about by all the aforementioned embodiments, which will not be elaborated further here.

[0046] The above are merely exemplary embodiments of this utility model and do not limit the scope of protection of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A top-feeding device, characterized in that, include: Mounting base, wherein a first through hole and a second through hole are formed on the mounting base; Fastening bolts, which pass through the first through hole for mounting on the lower die base of the stamping and drawing die; A telescopic cylinder, wherein the cylinder body of the telescopic cylinder is mounted on the mounting base, the extension shaft of the telescopic cylinder passes through the second through hole, and the extension shaft of the telescopic cylinder can extend upward; A lifting component, comprising a lifting rod and a rubber head, wherein one end of the lifting rod is mounted on the extension shaft of the telescopic cylinder, and the rubber head is mounted on the other end of the lifting rod for contacting the material.

2. The top-feeding device as described in claim 1, characterized in that, The lifting rod includes a first connecting rod and a second connecting rod. The first connecting rod forms a telescopic hole, and the second connecting rod is telescopically installed in the telescopic hole. The rubber head is installed on the first end of the second connecting rod away from the first connecting rod, and the end of the first connecting rod away from the second connecting rod is installed on the extension shaft of the telescopic cylinder.

3. The top-feeding device as described in claim 2, characterized in that, The telescopic hole is a threaded hole, and the outer surface of the second connecting rod is formed with an external thread. The second connecting rod is threadedly connected to the threaded hole through the external thread.

4. The top-feeding device as described in claim 2, characterized in that, The first connecting rod has a locking hole that connects to the telescopic hole, and the second connecting rod has abutting grooves spaced apart along the length of the second connecting rod. The ejector device also includes a fixing member, which passes through the locking hole and is installed in the abutting groove. One end of the locking hole abuts against the bottom of the abutting groove.

5. The top-feeding device as described in claim 1, characterized in that, The top surface of the rubber head is an arc-shaped convex surface, and the top surface of the rubber head is provided with anti-slip texture.

6. The top-feeding device as described in claim 1, characterized in that, The material feeding device also includes an air circuit control component, which includes a pressure sensor, a solenoid valve, and a controller. The solenoid valve is used to connect the telescopic cylinder to an external air source. The pressure sensor is installed at the end of the rubber head away from the lifting rod and is used to monitor the pressure on the rubber head in real time. The controller is connected to the pressure sensor and the solenoid valve respectively.

7. The top-feeding device as described in any one of claims 1 to 6, characterized in that, The feeding device also includes a proximity switch, which is installed on the cylinder body of the telescopic cylinder. The proximity switch is used to detect the extension length of the telescopic cylinder in real time and is used to connect to the stamping equipment for signal connection.

8. The top-feeding device as described in any one of claims 1 to 6, characterized in that, The rubber head has a buffer groove, and the lifting component also includes a buffer spring. One end of the buffer spring is connected to the lifting rod, and the other end of the buffer spring is connected to the bottom of the buffer groove.

9. The top-feeding device as described in any one of claims 1 to 6, characterized in that, The first through hole is an oblong hole, and the oblong hole is arranged in an arc shape.

10. A stamping device, characterized in that, The invention includes a stamping and drawing die and an ejector device according to any one of claims 1 to 9. The stamping and drawing die includes a guide post, a lower die base, an upper die base, and a blank holder. The guide post is telescopically mounted on the lower die base, the blank holder is mounted on the guide post, and the blank holder is used to support the material. The upper die base is used to abut against the blank holder. The ejector device is mounted on the lower die base, and the lifting direction of the ejector device is opposite to the pressing direction of the blank holder.

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